Window & Door Replacement Toronto & GTA
Upgrade comfort, light and everyday living with window and door replacement across Toronto and the GTA. Start with an in-home assessment, product options and a written quote for your home.
Get Your Free Quote
No obligation. Response within 24 hours.
"Optima Windows and Doors has built a reputation as one of the GTA's most trusted window and door installers : with over 10,000 homes upgraded and a near-perfect customer rating."
"Beginning with Chris from Sales to Ben from installation, my experience with Optima has been excellent! The product is excellent and the attention to detail shows."
"I am confidently giving Optima a 5 star rating on managing this project with precision timing, excellent workmanship and value for the money!"
"Comparing my last year energy bills to this year, it's a phenomenal difference. I only paid $10 for AC comparing to $159 last year!"
Details From Optima’s Project Gallery
Explore real installation photography as you plan your own windows and doors.
Discuss removal, access and cleanup as part of your replacement plan.
Explore window replacement
Plan the full opening, glass layout and door operation together.
Explore entry doors
Confirm the threshold, surrounding trim and installation scope before ordering.
Understand door measurementsWatch Our Work in Action
See real window and door installations from Toronto homeowners
Real Installations Across Ontario
Over 1,300 completed projects across 30+ communities in Ontario. Every pin on this map is a real Optima installation. Find your neighbourhood below.
Toronto Core
Hamilton & Niagara
Written Warranty Coverage
Review coverage periods, exclusions and transfer conditions for the selected products and installation.
Window Wise Certified Installers
Factory trained and Window Wise certified installation teams for guaranteed quality
Clean Job Site
We leave your home cleaner than we found it. Guaranteed.
On-Time Installation
Confirm the installation schedule and any timing commitments in your written agreement.
Certifications & Memberships
Recognized by Canada's leading industry organizations
If It’s Worth Installing, It’s Worth Installing Right
Before you plan it. Before you order it. And most definitely before installation day. Every detail matters, and Chris makes sure nothing gets missed. That commitment is how Optima has earned the trust of more than 10,000 GTA homeowners. Start your project with a free consultation today.
Schedule Your Free Consultation
Know What Is Included in Your Quote
Compare the details that matter for your home.
Product & Glass
Confirm the operating style, dimensions, glass package and performance ratings for each opening.
Installation Scope
Check removal, framing, insulation, trim, disposal and any work excluded from the price.
Warranty Terms
Review product and labour coverage, exclusions and transfer conditions in writing.
Price & Schedule
Compare the total price, payment terms, expected timing and any rebate assumptions.
The Optima Advantage: Premium Quality, Locally Built
Premium quality window installation backed by German engineering and Canadian craftsmanship
Energy Star Certified
Compare the ENERGY STAR certification and performance ratings of the exact window configuration in your quote. Energy savings depend on your home, products and installation.
Written Warranty Coverage
Ask for the written warranty covering your selected products and installation, including coverage periods, exclusions and any transfer conditions.
Built in Toronto
We build your windows in our own Toronto facility. No distributors, no markups : you pay direct from the source.
Our Crew, Your Home
Your project is handled by our own trained crew, start to finish. We never send subcontractors into your home.
Premium Windows & Doors Collection
Every window and door we install is built to handle Ontario's winters : from -30°C cold snaps to summer humidity.
Entry Doors
Front doors built for Canadian winters. Steel and fiberglass options with multi-point locking : secure, tight-sealing, and draft-free.
View Entry Doors →
Patio & Sliding Doors
Open your home to the backyard with doors that slide smoothly and seal tightly. Triple-pane glass available for year-round comfort.
View Patio Doors →Get an Instant
Window & Door
Cost Estimate
Answer a few quick questions about your home and get a realistic price range in under 2 minutes. No signup. No obligation.
- ✓Takes less than 2 minutes
- ✓Covers windows, doors, and full-home projects
- ✓Includes rebate and financing guidance
- ✓No personal details required to see results
Window Replacement Guides & Resources
Make informed decisions with our comprehensive guides covering everything from glass packages to energy efficiency and modern design trends.
- Triple Pane vs Double Pane Windows: Which Is Better for Ontario? Energy
- Soundproof Windows: Complete Noise Reduction Guide Noise Control
- Black Windows: Complete Guide for Modern Ontario Homes Design
- Steel vs Fiberglass Doors: Which Is Right for Your Home? Doors
- Egress Windows in Canada: Size Requirements & Building Codes Safety
Affordable Window Replacement Financing
Explore financing options and current rebate eligibility before you commit. Ask for the payment terms and total borrowing cost, and arrange any required energy assessment before work begins.
Monthly Payments
Ask for termsSubject to lender approval. Confirm the rate, term, down payment and total cost for your project.
Government Rebates
$100 / openingFor eligible ENERGY STAR windows and doors under Home Renovation Savings. Assessment and bundled-upgrade rules apply.
Our Window Installation Process
A clear process from your first assessment to the final walkthrough
Free Consultation
In-home assessment and precise measurements by our experts.
Custom Quote
Transparent pricing with no hidden fees. Financing options included.
Your Windows Are Built
Your selected products are prepared to the confirmed measurements. Your quote and order will establish the expected production and installation schedule.
Installation & Walkthrough
Your crew completes the agreed work, cleans the work area and reviews operation and care with you. Timing depends on the number of openings and installation scope.
Frequently Asked Questions
Answers to what Toronto homeowners ask most before getting started
How much does window replacement cost in Toronto?
Price depends on size, operating style, glass, installation method and finishing. Use our cost calculator for planning, then request an itemized quote. Financing is subject to lender approval and the terms offered for your project.
What is the best window type for Canadian winters?
Compare the complete product ratings, glass package, air leakage and installation details for your home. Our triple-pane versus double-pane guide explains the trade-offs. Savings vary by home and existing windows.
How long does window installation take?
The schedule depends on the number of openings, replacement method, access and finishing. Ask for the expected installation duration and production lead time in your written quote.
Are there government rebates for windows in Ontario?
Home Renovation Savings lists $100 per eligible window or door rough opening. The assessment stream requires a home energy assessment before work and at least two qualifying upgrade categories. Windows and doors together count as one category. Minimum quantities and other eligibility rules apply; confirm current terms before ordering. Check the official program requirements.
Window & Door Installation Across the GTA
Serving 25+ cities across Southern Ontario with free in-home consultations
Homeowner Knowledge Hub
Read before you buy : real guidance on costs, glass types, energy savings, and what to watch out for when hiring a contractor
Window Pricing Guide
How to budget for window replacement costs in Brampton and the GTA.
Read Guide →Choosing a Window Company
What to look for when selecting a window replacement contractor.
Read Guide →Office: 5343 Dundas St West, 6th floor #9, Etobicoke, ON M9B 6H8 | Showroom: 30 Labourers Way, Brampton, ON L4H 5B7 | (647) 800-6973
