"We had all our windows replaced. Phenomenal job! From the initial consultation to the quote to the installation, we have absolutely no complaints. They did an amazing job. We highly recommend this company."
Premium Products. Professional Installation.
Energy-Efficient Windows & Doors in Ontario, Professionally Installed
Trust Build is the single source that both supplies and installs ENERGY STAR® certified windows, steel and fiberglass entry doors, and patio doors engineered for Ontario's climate. One company, one warranty, no finger-pointing between a supplier and a separate installer — premium products fitted by our own expert crews, with clear guidance, flexible financing, and the best value on the market.
ENERGY STAR® CERTIFIED · EXPERT INSTALLATION · FLEXIBLE FINANCING
- ENERGY STAR® Certified
- Google 4.9★
- HomeStars Best of Award
- BBB A+ Accredited
- Lifetime Product Warranty
- 25-Year Labour Warranty
- 8,700+ Ontario Homes Since 2016
8,702+
Homes Served
BBB
A+ Accredited
4.9★
327+ Reviews
Lifetime
Warranty
Windows · Doors · Blinds
Premium Windows & Doors For Ontario Homes
From energy-efficient casement windows to solid entry doors, Trust Build supplies and installs a full range of products designed specifically for Ontario's climate. Every product is selected for durability, thermal performance, and lasting curb appeal.
Windows
Every window is ENERGY STAR® certified and installed by our own expert crews — engineered to reduce heat loss through Ontario's coldest months. Choose from double or triple-pane glass options, a wide range of frame styles, and custom sizing — all backed by a lifetime product warranty.
- Casement Windows
- Tilt & Turn Windows
- Picture Windows
- Bay & Bow Windows
- Awning Windows
- Slider Windows
- Basement & Egress Windows
- Hung Windows
Doors
Steel for bold security, fiberglass for wood-grain warmth that won't warp or rot — both professionally installed with multi-point locking systems, sidelights, and decorative glass inserts.
- Steel Entry Doors
- Fiberglass Entry Doors
- Sliding Patio Doors
- French Garden Doors
- Tilt & Turn Doors
- Garage Doors
Blinds
Our zebra blinds combine modern design with practical light control — perfect for any room in your home.
- Zebra Blinds
Window Styles
Explore Our Window Styles
Every style below is ENERGY STAR® certified, available with our triple-pane glass unit, and installed by Trust Build's own expert crews — engineered for Ontario's climate.
Casement Windows
Crank-out sash with an airtight seal and full, unobstructed ventilation.
Learn MoreFixed Casement Windows
Matching casement sightlines with maximum efficiency where no opening is needed.
Learn MorePicture Windows
The largest expanse of glass for maximum light, views, and energy efficiency.
Learn MoreBay & Bow Windows
Projecting windows that add interior space, panoramic light, and curb appeal.
Learn MoreAwning Windows
Top-hinged design that vents fresh air even during light rain.
Learn MoreSlider Windows
Smooth horizontal glide with a space-saving, low-maintenance profile.
Learn MoreSingle & Double Hung Windows
Classic North American styling with tilt-in sashes for easy cleaning.
Learn MoreTilt & Turn Windows
European dual-function design for secure ventilation or full airflow.
Learn MoreBasement & Egress Windows
Code-compliant openings that make a basement safe, legal, and livable.
Learn MoreKnow Before You Buy
Not Sure Which Product Is Right For You?
Choosing between double and triple-pane windows — or steel versus fiberglass doors — is one of the most common questions Ontario homeowners face. Here's what actually matters.
Double-Pane vs Triple-Pane Windows
| Double-Pane | Triple-Pane | |
|---|---|---|
| Glass Layers | 2 | 3 |
| Insulation (R-Value) | Good | Excellent |
| Noise Reduction | Moderate | Superior |
| Best For | Mild climates, budgets | Ontario winters, comfort |
| Energy Savings | ✓ | ✓✓ |
Triple-pane windows are the gold standard for Ontario homes. With an additional glass layer and two insulating gas chambers, they dramatically reduce heat loss in winter and keep cooling costs down in summer. Double-pane remains a solid, cost-effective upgrade from single-pane — especially for interior or sheltered exposures.
For Ontario's climate, triple-pane is the standard we recommend for maximum comfort and energy savings.
Read the full comparisonSteel Doors vs Fiberglass Doors
| Steel Doors | Fiberglass Doors | |
|---|---|---|
| Strength & Security | Excellent | Very Good |
| Dent Resistance | Moderate | High |
| Insulation Value | Good | Excellent |
| Maintenance | Low | Very Low |
| Appearance | Classic, bold | Wood-grain or smooth options |
| Best For | Security-focused homes | All-round performance |
Steel doors offer outstanding security and a clean, modern look at a lower price point. Fiberglass doors match that security level while adding superior insulation, better dent resistance, and the ability to mimic the warmth of real wood grain — with none of the warping or rotting.
Both are excellent choices, and we'll help you select the right fit for your home, security needs, and budget.
Read the full comparisonEngineered For Ontario
Triple-Pane Glass Unit
Ontario winters are unforgiving, so we build our windows to hold their own. Our triple-pane glass unit is Trust Build's high-performance glass system — three panes of glass, two insulating chambers, and the cold-climate engineering that keeps your home warm in January and comfortable in July.
Triple-Pane Construction
Three layers of glass with two sealed chambers dramatically slow heat loss compared to standard double-pane.
Argon Gas Fill
Each chamber is filled with argon — a dense, non-toxic insulating gas that resists heat transfer far better than air.
Dual Low-E Coating
Microscopic coatings reflect indoor heat back inside during winter and deflect solar heat in summer.
Super Spacer®
We use Super Spacer® — a premium, foam-based warm edge spacer system from Edgetech, trusted in high-performance residential and commercial glazing worldwide and tested to the highest industry standards. By replacing the conventional metal spacer at the edge of the glass, Super Spacer® minimizes the cold bridge where heat is most easily lost — reducing condensation, improving the overall energy efficiency of the sealed unit, and helping your windows perform better through Ontario's coldest months.
The result: lower energy bills, fewer drafts, and year-round comfort — all ENERGY STAR® certified and installed by our own crews. Double-pane configurations are available where triple-pane isn't required.
Why Trust Build
Premium Products. Expert Installation. Honest Value.
Ontario families choose Trust Build because we pair the finest products on the market with installation that's done right the first time — and a price that respects your budget.
ENERGY STAR® Certified Quality
Every window and door we install is ENERGY STAR® certified and engineered for Ontario's freeze-thaw climate — built to cut your energy bills and keep your home comfortable year-round.
The Finest Installation
Our own expert crews handle every installation with precision and care. No subcontractors, no shortcuts — just one team, one warranty, and work that lasts.
Clear, Accurate Guidance
We give homeowners an accurate, informative breakdown of every option — frame styles, glass performance, and door construction — so you make a confident, fully-informed decision.
Best Product, Best Price
Premium materials at the most competitive price available, plus flexible financing through Financeit — so the right upgrade fits your family's budget.
The Trust Build Experience
We Bring the Showroom to Your Door
Forget driving to a showroom. With Trust Build, the showroom comes to you. When you book a free in-home estimate, our product specialist arrives with everything you need to make a confident, informed decision — physical window and door samples, double and triple-pane glass samples to compare side by side, steel and fiberglass door frame samples, full product catalogues, accurate on-site measurements, and a written itemized estimate before we leave.
"You choose in your own home, in your own light, on your own timeline. No pressure. No showroom markup. Just honest advice and real products in your hands."
Our Services
More Than Windows & Doors
Trust Build handles every aspect of your exterior upgrade — from permits and masonry to blinds and garage doors. One team. One warranty. Zero subcontractors.
Masonry Work
Brick repairs, opening modifications, and structural enhancements — done right the first time.
Learn More
Garage Doors
Insulated, secure garage doors engineered for Ontario weather and long-term performance.
Learn MoreZebra Blinds
Modern dual-layer shades that balance privacy, light, and view — perfect for any room in your home.
Learn More
Egress Windows
Code-compliant egress solutions that make basements safe, legal, and livable.
Learn More
Window Wells
Protect your basement investment with proper drainage and durable, well-fitted wells.
Learn More
City Permits
We handle permit applications and technical drawings so your project stays compliant — stress-free.
Learn More
Attic Insulation
Blown-in attic insulation to R-60. Lower heating bills, stop ice dams and qualify for energy rebates.
Learn More
Security Film
Protect your home with professionally installed security film that helps hold shattered glass together and delays forced entry attempts.
Learn MoreWhy Homeowners Choose Us
Ontario's Trusted Installer Since 2016
Since 2016, Trust Build has completed installations in over 8,700 Ontario homes — not by cutting corners, but by showing up differently. We don't send salespeople. We send product specialists who assess your project accurately, explain every option clearly, and give you a written quote before they leave.
Our team handles windows, doors, masonry, permits, and installation under one roof — so you deal with one company, one warranty, and one point of contact from start to finish. Headquartered in Concord, with locations in Grimsby, East Gwillimbury, and Barrie, Trust Build proudly serves Toronto, Vaughan, Mississauga, Markham, Oakville, Burlington, Richmond Hill, and communities across the GTA and Ontario.
About UsLifetime
Product Warranty
25-Year
Labour Warranty
BBB A+
Accredited
HomeStars
Best of Award
Since 2016
Serving Ontario
Financing
Available
Energy
Efficient Products
Expert
Installation Teams
Financing Available
Flexible Financing For Your Project
Your home upgrade shouldn't have to wait. Through our partner Financeit, Trust Build offers flexible monthly payment plans with fast approvals — so you can move forward now and pay comfortably over time.
- Low monthly payment options
- 0% financing programs available
- Open loan — pay it off anytime
- Fast and easy online approval
Financeit
View Financing Options Ontario Rebates
You May Qualify for the Home Renovation Savings™ Program
The Home Renovation Savings™ program — administered by Enbridge Gas and Save on Energy (IESO) — helps eligible Ontario homeowners offset the cost of energy-efficient upgrades. Two of the upgrades we install most often may qualify, and we can pair your rebate with 0% financing for 12 months through Financeit.
ENERGY STAR® Windows & Doors
You may receive up to $100 per rough opening when you upgrade to ENERGY STAR® certified windows or doors. A home energy assessment is required before any work begins, and rebates apply when you bundle eligible upgrades (for example, a minimum of three window rough openings, or one qualifying door, skylight, or sliding door).
Attic Blown-In Insulation
You may receive up to $1,250 for standalone attic blown-in insulation with no assessment required, or up to $1,500 when bundled with other eligible upgrades through the assessment stream. Better insulation lowers heating bills and helps stop ice dams.
Eligibility, amounts, and requirements are set by the program — our team will confirm how it applies to your home and handle the details with you. Full details at homerenovationsavings.ca.
Real Homeowners. Real Results.
4.9★ From 327+ Verified Reviews
Combined from verified reviews across BBB, Google, HomeStars, and Facebook — including a HomeStars Best of Award rating from 145 reviews.
"The installers are perfectionists — they exceeded our expectations in every respect and upgraded the visual appearance of the whole entry. I understand why the company uses the word Trust in its name."
"From sales to installation, to management and owners, everyone was professional, friendly, and gracious. I'll be starting my next project with this company very soon."
Common Questions
FAQ
Frequently Asked Questions
Yes. Every estimate is free and carries no obligation. Our specialist assesses your openings, takes accurate measurements, and provides a clear, written, itemized quote so you know exactly what's included before you decide.
Double-pane windows have two glass layers and one insulating gas chamber; triple-pane windows add a third layer and a second chamber, which significantly reduces winter heat loss and outside noise. For Ontario's climate, triple-pane delivers the best comfort and energy savings, while double-pane is a strong, cost-effective option for sheltered or interior exposures.
Steel entry doors offer excellent security and a clean, bold look at a lower price point, while fiberglass doors match that security with better insulation, higher dent resistance, and realistic wood-grain finishes that won't warp or rot. Both are excellent — we'll help you choose the right fit for your home's security needs, style, and budget.
Trust Build is headquartered in Concord with locations in Grimsby, East Gwillimbury, and Barrie, serving Toronto, Vaughan, Mississauga, Markham, Oakville, Burlington, Richmond Hill, and communities across the GTA and Ontario.
Most single-window or single-door installations are completed in a day, and full-home window replacements typically take one to three days depending on the number of openings and any masonry or trim work involved. We confirm the exact timeline in your written quote so there are no surprises.
You may qualify for the Home Renovation Savings™ program — up to $100 per rough opening for ENERGY STAR® certified windows and doors (a home energy assessment is required before work begins), and up to $1,250 for standalone attic insulation or up to $1,500 when bundled. Our team will confirm how it applies to your home. Full details at homerenovationsavings.ca.
Request a Free In-Home Estimate
Request a Free In-Home Estimate
Fill out the form and we'll get back to you within one business day to book your free in-home estimate. Our product specialist arrives with samples, takes accurate measurements, and leaves you with a clear, written, itemized quote — no obligation and no pressure.
"Responded the same day and came with everything we needed to decide."
— Sarah M., Oakville
- Free, no-obligation project assessment
- Written, itemized estimate before we leave
- We respond within one business day
Contact & Hours
Open Monday–Sunday, 9 AM – 6 PM
Your information is never shared. We respond within one business day.