Awning Windows
Awning windows are a stylish and practical window type, hinged at the top and opening outward from the bottom—much like the canopy of a tent. …
WINDOW REPLACEMENT
& INSTALLATION IN GTA
Most GTA Homeowners Qualify for $5,000–$40,000 in Rebates
- Factory-direct manufacturer — no middleman markups
- ENERGY STAR® certified · Lifetime warranty on every window
- $0 down, financing from $45/mo — installed in as little as 2 weeks
- We handle all gov’t rebate paperwork — Canada Greener Homes, Enbridge, Ontario
Trusted & Certified
⚡ Enbridge & Canada Greener Homes rebates are active — funding is limited and allocated first-come, first-served.
500+
GTA Homes Upgraded
20+
Years Manufacturing
$2M+
in Rebates Secured
4.9★
Google Rating
Exclusive Window Replacement Deals in GTA
Valid Through 2026
Affordable Financing from $45/month
- No hidden fees
- Same-day approval
- Up to 12-month payment deferral
$0 Down + $0 Due
on Install Day
- Start your project with nothing upfront
- Financing up to $40,000
- Lifetime warranty included
0% Interest-Free Gov’t Loan, up to $40,000
Plus up to $5,000 in Enbridge Rebates
- Combine programs for maximum savings
- Available for qualifying energy-efficiency
Combine Offers & Maximize Your Savings
- Stack rebates, financing, and free upgrades
- Available until the end of 2026
- Perfect for full-home replacements
Factory-Direct Windows — Manufactured in Toronto, Installed Across GTA
ENERGY STAR® Certified for Ontario’s Climate
Every window meets ENERGY STAR® standards for Canada — which means you qualify for government rebates and see lower heating bills from month one.
Installed by Our Own Crew — No Subcontractors
Our local installers have over 10 years of hands-on experience and deliver expert craftsmanship on every project.
Lifetime Warranty You Can Trust
Every window comes with a lifetime warranty — real protection, no fine print.
Factory-Direct Pricing & Exclusive Rebates
We cut out the middlemen, offering factory-direct prices plus access to exclusive Gov’t and Enbridge rebate programs.
Lifetime Warranty on Every Window
At DES Windows, we proudly stand behind every window we manufacture. Our lifetime product warranty covers all materials and components — for as long as you own your home.
No hidden clauses! No fine print!
Just genuine protection and long-term peace of mind!
Catalog of Products
Casement Windows
Casement windows are a timeless window solution, hinged on one side and designed to open outward using a crank or lever handle. Known for their …
Picture Windows
Picture windows are large, fixed panes of glass that do not open, offering an unobstructed and uninterrupted view of the outdoors. As non-operable windows, they …
Bay Windows
Transform your home with the timeless beauty and practicality of Bay windows. These stunning architectural features not only enhance curb appeal but also expand your …
Energy Efficiency Certifications
& Performance Standards
All DES Windows products meet the latest NAFS-22 standards, ensuring superior durability and performance in the Canadian climate. Our windows deliver maximum energy efficiency, airtight insulation, and exceptional water resistance — tested for real Ontario weather.
All our models are also ENERGY STAR® certified, meeting the highest Canadian standards for energy savings and sustainability — lower energy bills, a warmer home in winter, and a reduced environmental footprint.
Enhanced energy efficiency
Superior air-tight performance
Maximum water resistance
Minimum Energy Rating of 34+
Lower heating & cooling costs
Reduced carbon footprint
Customer Reviews
Results are fantastic
I was nervous about replacing all our windows before winter, but DES made it stress-free. They stuck to the timeline, explained everything in detail, and the results are fantastic. Our energy bill has already gone down.
Mark B., Mississauga
Windows look incredible
We got quotes from three companies, and DES was the most transparent and reasonably priced. The installers were courteous, efficient, and clearly knew what they were doing. Our new windows look incredible.
Elena D., Scarborough
A great experience
DES Windows installed our new front entry door and patio sliders — the quality is top notch, and the curb appeal is amazing. Installation was quick and hassle-free. A great experience from start to finish.
Jason T., Etobicoke
Highly recommend!
Absolutely thrilled with our new windows from DES! The team was professional, fast, and left our home cleaner than they found it. Noticed a huge improvement in warmth and sound insulation right away. Highly recommend!
Sarah M., North York
Common Questions
Frequently Asked Questions
Do I qualify for the $40,000 government rebate?
Most GTA homeowners qualify for $5,000–$40,000 in rebates through Canada Greener Homes, Enbridge Home Efficiency Rebate Plus, and Ontario IESO programs. Eligibility depends on your home's age, current window type, and upgrade scope. We check your eligibility at no cost — fill out the free quote form and we’ll have your rebate breakdown ready within 2 hours.
How long does window installation take?
For most GTA homes, installation is completed in a single day. From approval to install day, the typical timeline is 2 weeks — we handle ordering, scheduling, and all paperwork so there’s nothing you need to coordinate. Our crew cleans up completely before leaving.
What does the lifetime warranty cover?
Our lifetime warranty covers all materials and components — glass seal failures, hardware defects, and frame issues — for as long as you own the home. There are no hidden clauses or fine print. If anything fails due to manufacturing or materials, we fix or replace it at no charge.
Can I finance with average or below-average credit?
Yes. Our same-day financing approval is accessible to most homeowners. We offer $0 down, $0 due on install day, and monthly payments from $45/month with up to 12-month payment deferral. Government loan programs (0% interest, up to $40,000) are also available for qualifying homeowners regardless of credit score.
Are your installers your own employees or subcontractors?
Every installation is done by our own certified crew — no subcontractors. Our team has 10+ years of hands-on experience in GTA and is accountable to DES Windows directly. This means consistent quality, clean workmanship, and no third-party liability issues.
What’s the price range for window replacement?
Starting prices installed in GTA: Casement/Awning $350–$650 per window · Double Hung/Slider $300–$600 · Bay/Bow $1,200–$3,500 per unit · Entry/Patio Doors $800–$2,500. After applying government rebates most homeowners pay significantly less. Get your exact quote free — no obligation.