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Mississauga, Ontario · Windows and doors

Window Replacement Mississauga: One Form, One Free Quote, No Spam Calls

Picture next January. The wind is coming off Lake Ontario, your living room stays warm, and the furnace is not fighting a losing battle against leaky glass. That is what new windows buy you: a quieter, warmer home and a lower heating bill every single month.

Getting there is usually the annoying part. You search for window companies, fill out three forms, and your phone rings for two weeks straight. We built Drafty to fix that. Tell us about your project once through our free quote form, we price it, and a licensed, insured local crew serving your part of Mississauga measures, quotes, and does the work. No bidding war. No call list. No pressure.

Start your free quote

About two minutes. No obligation.

Modern black-frame casement replacement window in a red-brick wall

Representative imagery

Licensed and registered

A legitimate, registered business in Ontario, not a truck and a phone number.

Insurance and WSIB

Liability insurance protects your property; workplace coverage protects you from being liable if a worker is hurt on your job.

Real warranties

Manufacturer warranty on the units plus a written labour warranty on the installation itself.

Free for homeowners

The quote is free and you owe nothing if you decide the timing is wrong.

How it works

How it works: from form to finished windows

Here is the whole process, start to finish.

01

You tell us about your project

How many windows, what kind of home, which part of Mississauga, and your rough timeline. It takes about two minutes on the quote form.

02

We put one crew on it

Not five companies fighting over your number. Your project goes to one screened, local crew suited to your job size, with proof of insurance, WSIB coverage, and a written workmanship warranty already on file. You are not thrown into a lead auction.

03

We measure and quote

A proper in-home assessment, exact measurements, and a written quote with real numbers. You can ask every question on your list.

04

You decide

Take the quote, sleep on it, compare it if you like. There is no obligation and no follow-up barrage if you say no.

The whole point is to remove the two things homeowners hate most about this process: not knowing who to trust, and getting hounded by strangers after one search.

Red-brick Mississauga home exterior with new replacement windows

Representative imagery

Why now

Why Mississauga homes are due for new windows

Mississauga grew fast. Cooksville and Lakeview filled in through the 1950s and 1960s. Erin Mills, Meadowvale, and Streetsville boomed through the 1970s and 1980s. A huge share of the city’s housing stock is now 30 to 60 years old, and many of those homes still carry their second or even first set of windows.

That matters for three reasons.

  • Old glass leaks money. Natural Resources Canada estimates that windows can account for up to 25 percent of a home's heat loss. Single-pane units and early double-pane units with failed seals are the worst offenders. If your January bills feel heavier than your neighbour's, the glass is a prime suspect.

  • Lake weather is hard on frames. Homes in Port Credit, Clarkson, and Lorne Park take wind and moisture straight off the lake. Wood frames rot, aluminum frames sweat and frost up, and cheap vinyl warps. Installers who work these neighbourhoods see the same failure patterns over and over.

  • Comfort is the daily tax. Drafts near the sofa, a bedroom that never warms up, condensation pooling on the sill every morning. You stop noticing because you live with it. Then the new units go in and the difference is immediate.

25%

The number that matters

of a home's heat loss can pour straight through its windows, by Natural Resources Canada's estimate. In a city where the housing stock runs 30 to 60 years old, that is Mississauga's problem in one number.

If your home was built before 2000 and the windows are original, a replacement assessment is worth 30 minutes of your time.

Even if you do nothing this year. The quote is free and you owe nothing if you decide the timing is wrong.

Get a free quote(416) 555-0100

Walk your home

7 signs it is time to replace your windows

You do not need a professional to spot most of these. Walk your home and check:

01

Drafts you can feel. Hold the back of your hand near the frame edges on a windy day. Moving air means failed seals or warped frames.

02

Condensation between the panes. Fog or moisture trapped inside the glass means the insulated unit has failed. The insulating gas is gone and the unit cannot be resealed.

03

Windows that stick, jam, or will not lock. Frames shift and swell with age. A window that will not lock is also a security and insurance problem.

04

Rotting, chipping, or soft wood. Press a screwdriver gently into the lower frame corners. Soft wood means water is already inside the structure.

05

Noise pouring in. If you hear Hurontario traffic or the QEW like it is in your kitchen, single-pane or worn units are doing almost nothing for sound.

06

Rooms that never hold temperature. Cold rooms in winter, hot rooms in summer, and a furnace or air conditioner that cycles constantly.

07

Visible frost or ice on the inside. In a Mississauga February, interior frost is the glass telling you it has given up.

Two or three of these together usually means repair money is being wasted and full replacement is the smarter spend.

The honest gut check

Repair or replace: a 5 minute gut check

Not every problem needs a new window, and an honest company should say so. Use this quick logic before you request quotes.

Repair usually wins when

The frame is sound and the problem is a single part. A broken crank, a worn lock, a torn screen, or a failed piece of hardware costs $50 to $300 to fix. Window glass replacement alone, meaning a new sealed glass unit dropped into a healthy frame, runs $250 to $600 and makes sense on a window under 10 years old.

Replacement usually wins when

The frame itself is the problem. Rot, warping, chronic drafts, or fogging on units past 15 years old means repairs become a subscription. Spending $400 to reseal a 22 year old window buys you two or three years at best. That money compounds fast across a whole house.

The multiplier rule: one bad window is a repair conversation. Four or more bad windows is a replacement conversation, because crews price whole projects far better than single visits, and your home’s efficiency is only as good as its worst openings.

If you are genuinely unsure, say so on the form. The assessment visit costs nothing, and a crew that recommends a $300 repair instead of a $12,000 project is exactly the kind of crew we want doing Drafty installs.

Real numbers

What window replacement costs in Mississauga

Nobody publishes exact prices because every home is different, but you deserve real numbers before anyone steps into your living room. These are typical installed ranges Mississauga homeowners see quoted for quality vinyl units. Treat them as ballparks, not promises.

Window replacement cost per window

Window typeTypical installed range

Slider

$600 to $1,200

Picture or fixed

$600 to $1,500

Double hung

$700 to $1,500

Awning

$700 to $1,500

Casement

$800 to $1,800

Basement

$450 to $900

Bay

$2,500 to $5,500

Bow

$3,000 to $6,500

For a whole home, most detached houses in Mississauga run 8 to 14 openings. A full vinyl replacement commonly lands between $8,000 and $22,000 in total, depending on sizes, styles, and how much frame repair the crew finds. Wood and fiberglass push those prices up 20 to 60 percent.

Cheap window replacement: where to save and where not to

Plenty of people search for cheap window replacement in Mississauga, and saving money is a legitimate goal. Save by choosing vinyl over fiberglass, standard sizes over custom shapes, and sliders or fixed units where you do not need ventilation. Do your whole house in phases, worst windows first, to spread the cost over two or three years.

Do not save by hiring an uninsured crew, skipping the Low-E coating, or accepting a quote that leaves out disposal, capping, and caulking. The lowest bid that cuts those corners becomes the most expensive window you ever buy.

What moves your price up or down

Size. Bigger glass, bigger price. Custom oversized units cost more than standard sizes.

Style. Fixed units are cheapest. Bays and bows are carpentry projects, not just window swaps.

Retrofit vs full frame. Keeping your existing frames is cheaper; replacing everything down to the studs costs more but fixes hidden rot and air leaks. More on this below.

Floor height. Second and third storey work needs more equipment and time.

Frame condition. Rot discovered mid-job adds carpentry hours. An honest quote flags this risk in advance.

Season. Crews are busiest May through October. Late fall and winter installs sometimes come with sharper prices, and yes, windows are installed in winter all the time, one opening at a time.

$100

Easier on the budget

per opening in rebates is on the table for qualifying Energy Star windows and doors under Ontario's Home Renovation Savings Program. Certified products are what make the paperwork go through.

Easier on the budget

Rebates and financing for Mississauga homeowners

Government programs change frequently, so confirm current rules before you count on any of this. As of the time of writing:

A good installer handles rebate paperwork with you and tells you plainly when a program does not apply. If a salesperson uses rebates as pressure (“this ends Friday”), treat it as a red flag.

Modern sliding patio door opening onto a backyard deck

Representative imagery

Doors too

Doors too: entry and patio door replacement

Most window projects in Mississauga end up including at least one door, and quoting them together usually beats pricing them separately. The same crews handle both, and combined jobs spread the fixed costs of the visit.

Entry doors. A new insulated steel or fiberglass entry door seals out drafts, upgrades security, and changes the entire face of your home. Installed prices typically run $1,500 to $4,500 depending on material, glass inserts, and sidelights.

Patio doors. Sliding and garden doors are notorious draft points on 1970s and 1980s builds. Modern sliders glide properly, lock properly, and insulate like a good window. Expect $1,800 to $5,500 installed.

One honest boundary: we handle exterior work. Interior doors, trim, and closet doors are finish carpentry, and our quote form is not built for those jobs. For the full picture of exterior door options across the GTA, see our door installation guide.

The bigger price lever

Full frame vs retrofit: which installation do you need

This choice affects your price more than the brand of glass, and plenty of quotes gloss over it.

Retrofit (insert) installation

Keeps your existing frame and slides a new unit inside it. It is faster, cleaner, and 15 to 30 percent cheaper. It works well when your frames are square, dry, and rot-free. The trade: you lose a little glass area, and any hidden problems in the old frame stay hidden.

Full frame replacement

Strips the opening down to the rough structure: frame, brickmould, casing, everything. It costs more and takes longer, but it exposes and fixes rot, lets the crew insulate the full cavity, and gives you the maximum glass area. On homes older than 40 years, or anywhere water staining is visible, full frame is often the honest recommendation.

Be cautious with any quote that assumes retrofit sight unseen on a 1960s Cooksville bungalow. The right answer comes after someone inspects your actual frames, which is exactly what the in-home assessment is for.

The vetting standard

The standard behind every crew we send

“Vetted” is an easy word to type, so here is what it means in practice. Before a crew installs a single Drafty project in Mississauga, we confirm:

Licensing and registration. A legitimate, registered business in Ontario, not a truck and a phone number.

Insurance and WSIB coverage. Liability insurance protects your property; workplace coverage protects you from being liable if a worker is hurt on your job.

A track record we can check. Completed local projects, verifiable references, and public reputation signals like Google reviews and HomeStars profiles. We read the bad reviews too, because how a company handles a complaint tells you more than a five-star average.

Real warranties. Manufacturer warranty on the units plus a written labour warranty on the installation itself. If the labour warranty is verbal, it does not exist.

Sales conduct. No crews who run fake “today only” discounts or four-hour kitchen-table pressure sessions. If a crew ever treats you that way, tell us and they are out.

We keep our crew roster deliberately small. Your project goes to the best available crew for your job type and area, not whoever paid for the lead that hour.

Local coverage

Every corner of Mississauga, covered

Our crews work across the entire city, and local experience matters because the housing stock changes block by block:

Port Credit and Lakeview: lakefront exposure, older cottages and infill builds, wind-driven rain performance is the priority.

Cooksville and Mineola: postwar bungalows with original wood frames, frequent full frame candidates.

Erin Mills and Meadowvale: 1970s and 1980s subdivisions with aging builder-grade aluminum sliders and patio doors.

Streetsville: heritage character homes where style matching matters as much as efficiency.

Clarkson and Lorne Park: larger lots, bigger custom openings, more bays, bows, and oversized picture units.

Square One, City Centre, and Hurontario: townhomes and condo townhouses, where board approvals may shape what you can install.

Malton, Applewood, and East Credit: high-value mixes of 1960s through 1990s stock where phased replacements are common.

Wherever you are in Mississauga, Ontario, the form works the same way and the quote is free. Local knowledge shows up in small ways: knowing that Lakeview brick openings from the 1950s rarely measure square, that certain Erin Mills builders used one odd patio door size for a decade, or that a Lorne Park lot needs longer ladder reach than the truck usually carries. Crews that already work your street quote tighter and finish faster, and that is exactly who we send.

Nearby areas

Beyond Mississauga

Drafty handles window and door replacement across the west GTA and Toronto. If you are helping family in another part of the city, these pages cover their areas:

Take this list with you

8 questions to ask any window contractor before you sign

Take this list into your quote appointment. Good contractors answer all eight without flinching.

01

Are you licensed and insured, and can I see proof?

Certificates, not promises.

02

Who actually does the installation?

Employees or subcontractors, and who supervises the job.

03

Retrofit or full frame, and why?

The answer should reference your specific frames, not a one-size default.

04

Which manufacturers do you carry, and why this one for my home?

You want a reason, not just a brand name.

05

What exactly is included in this price?

Disposal, capping, caulking, interior trim, and frame repair contingencies, all in writing.

06

What are the warranty terms?

Product warranty length, labour warranty length, and what voids each.

07

How long will my job take, and how do you handle winter or rain days?

Realistic scheduling beats optimistic scheduling.

08

Can I see a recent local job or speak to a recent customer?

Local references from your own part of the city are gold.

When you come through our quote form, the crew you meet has already cleared the background questions. Ask the rest anyway. A pro respects a prepared homeowner.

FAQ

Frequently asked questions

Straight answers on cost, styles, and timing for window replacement in Mississauga.

How much does it cost to replace windows in Mississauga?
Most standard vinyl windows in Mississauga cost between $600 and $1,800 installed, depending on style and size. Sliders and fixed units sit at the low end, casements in the middle, and bays and bows run $2,500 to $6,500 because of the structural work involved. A typical whole-home project with 8 to 14 openings lands between $8,000 and $22,000 in total. Your exact price depends on your frames, so treat any number given without a measurement as a guess.
What is the average cost to replace windows in Ontario?
Across Ontario, the average installed cost for a standard vinyl replacement window falls between $700 and $1,500. Prices in the GTA, including Mississauga, tend to sit slightly above the provincial average because labour and disposal cost more here. Material choice moves the number most: wood and fiberglass typically add 20 to 60 percent over comparable vinyl units.
What is the average cost of a standard replacement window?
For the window unit alone, a standard-size vinyl replacement window typically costs $300 to $700 from major window manufacturers. Installation, insulation, capping, caulking, and disposal roughly double that, which is why installed quotes for a standard opening usually land between $600 and $1,500. Buying the unit cheap and hiring separate labour rarely saves money once warranties are factored in, because most manufacturers only honour full coverage when a qualified installer does the work.
Who is the best company to buy windows from?
There is no single best company, and anyone who says otherwise is selling something. Canada has strong national brands, and names like Canadian Choice Windows and Doors have built recognition and reviews across the country, alongside dozens of quality regional window manufacturers here in Ontario. Here is the honest truth: the installer matters more than the sticker on the glass. A mid-tier window installed perfectly outperforms a premium window installed badly. Pick certified products, then judge companies on insurance, warranties, and verified local reviews. That vetting is the entire service we provide.
Is it worth replacing 20 year old windows?
Usually, yes. Twenty years is the typical service life of builder-grade units, and by that age seals fail, argon gas escapes, and hardware wears out. If your 20 year old windows show fogging between panes, drafts, or operating problems, replacement beats repair on cost per year. If they are premium units that still operate and seal well, you can wait; replace on evidence, not on age alone. An in-home assessment settles it in half an hour.
How much does a 4x8 window cost?
A 4x8 window (four feet wide by eight feet tall, or the reverse) is a large custom unit, usually a picture window or a casement combination. Expect $1,200 to $3,500 installed for vinyl, with fiberglass and structural considerations pushing large openings past $4,000. Glass that size often requires tempering for safety, which adds cost, and second-storey installs of big units need extra crew. Get it quoted alongside your other openings; large windows priced within a bigger job come in cheaper than solo orders.

The homeowner’s guide

Everything else worth knowing before you sign

The deep detail, for Mississauga homeowners who like to research before they talk to anyone. Skim the headings and read what applies to you.

Window styles

Window styles that fit Mississauga homes

Every quote conversation starts with style, because style drives price, ventilation, and how the window performs against wind. Here is the plain-language version of your options.

01

Casement windows

Casements crank open outward like a door. When closed, the sash presses against the seal, which makes casements one of the tightest styles against wind and rain. They are the workhorse of Ontario replacements and a strong choice for the lake-facing sides of homes in Port Credit and Clarkson.

02

Double hung windows

Double hung windows slide vertically, and both the top and bottom sash move. They suit older and more traditional homes, and many Mississauga homeowners searching for double hung window replacement want to keep the classic look of a Streetsville or Lakeview property. Both sashes usually tilt inward, so you can clean the exterior glass from inside.

03

Slider windows

Sliders move horizontally on a track. They are simple, affordable, and practical for wide, short openings. You will find them all over 1970s and 1980s builds in Erin Mills and Meadowvale. Fewer moving parts means less to break.

04

Awning windows

Awnings hinge at the top and open outward from the bottom. You can leave them cracked open in the rain, which makes them great for bathrooms and above kitchen sinks. They pair well under large fixed windows.

05

Bay and bow windows

Bay windows project outward in three panels; bow windows curve outward in four or five. Both add floor space, light, and serious curb appeal. They are the most expensive style to replace because the structure, roofing, and insulation around them are part of the job.

06

Picture and fixed windows

Picture windows do not open. No moving parts means the best possible seal and the lowest cost per square foot of glass. A big fixed unit facing a Lorne Park backyard is one of the cheapest ways to transform a room.

07

Basement windows

Basement window replacement is its own specialty. Older Mississauga basements often have steel-framed units that rust and leak. If you are finishing a basement or adding a bedroom, egress rules set minimum opening sizes so a person can exit in an emergency. A good crew will flag egress requirements before you commit to a size.

Frame materials

Frame materials: vinyl, wood, fiberglass, aluminum

The frame decides how long the window lasts and how much you pay. Four materials cover almost every replacement in the city.

Vinyl

The default choice for a reason. It never needs painting, it insulates well, and it delivers the lowest installed price. Modern vinyl is nothing like the flimsy stock from the 1990s; look for fully welded frames and multi-chamber profiles. Roughly 8 out of 10 replacement quotes in the GTA are vinyl.

Wood

Looks beautiful and insulates naturally, and wood window replacement still makes sense for heritage-style homes where character matters. The trade is maintenance. Wood needs paint or stain on a schedule, and near the lake it needs vigilance against rot. Many homeowners split the difference with wood interiors clad in aluminum or vinyl outside.

Fiberglass

The premium pick. It expands and contracts at nearly the same rate as glass, so seals stay tight through 40 degree temperature swings. It costs 20 to 40 percent more than vinyl and typically lasts longer.

Aluminum

Strong and slim but conducts cold, which means condensation and frost in a Canadian winter unless the frame has a thermal break. It survives mostly in commercial work and some modern designs.

Your installer should walk you through samples of each, not just the brand they happen to carry. Good ones represent multiple window manufacturers and will tell you when the cheaper line is genuinely good enough.

The spec sheet

Energy efficient windows: what actually matters

Energy efficiency is where window marketing gets thick. Here is the short list of what moves the needle.

Double pane vs triple pane

Double pane glass with the right coatings handles most Mississauga homes well. Triple pane adds roughly 10 to 15 percent better insulation and noticeably better sound blocking. If you live near the QEW, Highway 403, or the rail corridor, triple pane is worth pricing out for the bedrooms at minimum.

Low-E coatings

A microscopic metallic layer on the glass reflects heat back where it came from: inside in winter, outside in summer. Nearly every quality unit sold in Ontario includes at least one Low-E coating. This is not an upsell; it is the baseline.

Argon gas fill

The space between panes gets filled with argon, which insulates better than plain air. Standard on good units, cheap to include, and worth having.

Energy Star certification

Energy Star certified windows are tested for the Canadian climate zone you actually live in. Certified models are, on average, about 20 percent more efficient than standard units. Certification also matters for rebates, which we cover below.

Installation quality

The dirty secret of the industry: a mid-grade window installed perfectly beats a premium window installed badly. Air sealing, insulation around the frame, and flashing details decide real-world performance. This is exactly why we hold every crew to an installation standard instead of just selling you glass.

The paperwork side

Permits, egress rules, and condo approvals

Most like-for-like window swaps in Mississauga do not need a building permit. You are replacing a unit in an existing opening, and the city treats that as maintenance. Three situations change that.

Changing the opening.

Making a window bigger, smaller, or cutting a new one into a wall touches structure, and structural changes need a permit from the City of Mississauga. Your installer should raise this before you sign, not after the brick saw comes out.

Basement bedrooms and egress.

If a basement room will be used as a bedroom, the Ontario Building Code requires an egress window with a minimum clear opening so an adult can climb out in an emergency. Plenty of older basements fail this quietly. A crew that knows the code will size the window and, if needed, the window well correctly the first time.

Condos and townhouse corporations.

Around Square One and City Centre, windows are often common elements owned by the condo corporation, not by you. Some corporations replace them on a schedule; others let owners upgrade with board approval and specific product requirements. Get the rules in writing from your property manager before requesting quotes, and share them on the form so your project goes to a crew that handles condo work.

None of this should scare you off. It is routine for experienced crews. It only becomes a problem when a cut-rate operator skips the paperwork and you inherit the issue at resale or insurance time.

Timing

When is the best time of year to replace windows?

The honest answer: whenever you are ready, because modern crews install year round. Still, each season has trade-offs worth knowing.

Spring and summer bring the fastest caulking cure times and the easiest scheduling for big multi-day projects. They are also peak season, so book 4 to 8 weeks ahead and expect firm prices.

Fall is the sweet spot for many homeowners. You beat the winter heating season, crews are still moving quickly, and calendars begin to open up.

Winter installs work better than most people expect. Crews replace one opening at a time, each swap takes 30 to 60 minutes of actual exposure, and interior temperatures barely move. Demand drops, so quotes are sometimes sharper and lead times shorter. Cold-weather caulking and foam rated for low temperatures are standard practice.

The worst time to replace windows is the year after the drafts, the mould spots, and the doubled heating bill already cost you more than the discount you were waiting for. If the units have failed, the cheapest window is the one installed before another February.

Installation day

What happens on installation day

Knowing the sequence removes most of the anxiety.

  1. Prep.

    The crew lays floor protection, moves furniture back from the openings, and reviews the plan with you. Clear a metre of space inside each window if you can.

  2. Removal.

    Old units come out one opening at a time. Your home is never left with a gaping hole overnight.

  3. Installation.

    The new unit is levelled, shimmed, fastened, insulated around the perimeter, and sealed inside and out.

  4. Finishing.

    Exterior capping or brickmould, interior casing or trim as quoted, and a bead of clean caulking.

  5. Cleanup and walkthrough.

    Old windows and debris leave with the crew. You operate every unit, check every lock, and sign off only when everything works.

A typical crew installs 8 to 12 standard openings in one to two days. Bays, bows, and full frame jobs take longer. Winter installs proceed one room at a time so your house never drops more than a few degrees.

The long view

How long new windows last, and what warranties really cover

Quality vinyl windows last 20 to 30 years. Fiberglass commonly reaches 30 to 50. Wood lasts as long as its maintenance schedule is respected, which in practice means 20 years for neglected frames and 60 for loved ones. Hardware, weatherstripping, and caulking wear faster than glass, so expect small maintenance touch-ups from year 10 onward on any material.

Warranties are where quotes hide their differences, so read them the way you would read a lease:

Product warranty

comes from the manufacturer and covers the frame, the sealed glass unit, and hardware. Look for the seal failure coverage specifically; fogging between panes is the most common long-term claim. Strong Canadian manufacturers back sealed units for 15 to 25 years, and some offer lifetime coverage on vinyl frames.

Labour warranty

comes from the installer and covers the workmanship: the levelling, insulation, flashing, and sealing. This is the one that varies wildly, from 1 year to 10. A short labour warranty on a long product warranty is a tell; the company is confident in the glass and not in its crews.

Transferability

matters if you might sell. A warranty that transfers to the next owner is a genuine selling feature on a Mississauga listing, and agents know it.

Keep every document, register the products where the manufacturer requires it, and photograph the finished work. Ten years from now, that folder is the difference between a free fix and a $700 invoice.

Get started

Get your free window replacement quote in Mississauga

You have the prices, the styles, the rebate picture, and the questions to ask. The last step takes two minutes: tell us about your project on the free quote form and you get one written quote from a licensed, insured local crew serving your Mississauga neighbourhood.

No spam calls. No bidding war. No obligation to buy anything. Just a straight answer to the only question that matters: what would it cost to make your home warmer, quieter, and cheaper to run before the next winter arrives.

Free, no obligation

Get your free Mississauga quote

Tell us about your project and our team will follow up with pricing for your Mississauga home.

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Drafty works with licensed, insured local installation crews across Mississauga and the GTA. Every installation is completed by an independent local crew carrying liability insurance and WSIB coverage.

(416) 555-0100Get a free quote