Low-E Windows Installation & Replacement in GTA – Energy Savings All Year

We provide expert Low-E windows installation & replacement in GTA. Our soft-coat & hard-coat Low-E IGUs with argon/krypton gas fills and CSA & ENERGY STAR® certification deliver superior insulation, UV protection, and year-round comfort.

Get a Quote

Get a FREE Quote Today

Upgrade Your GTA Home With High-Performance Low-E Windows

Our Low-E windows are designed for Toronto and GTA homes. Combining microscopically thin metallic oxide coatings with double or triple-pane insulated glass units (IGUs), our windows improve U-factor and R-value performance. This technology reduces heat loss in winter, limits solar heat gain in summer, and blocks up to 95% of harmful UV rays.

Every unit is CSA-tested and ENERGY STAR® certified, guaranteeing energy efficiency, durability, and comfort. Our certified installers deliver precise, airtight installations, ensuring your Low-E windows outperform standard glass replacements.

Explore Our Low-E Window Options in GTA

We provide double-pane, triple-pane, hard-coat, soft-coat, and custom Low-E windows, built to improve insulation, UV protection, and comfort in GTA homes. Our Low-E Window options include:

Double-Pane Low-E Windows

Our double-pane Low-E windows combine insulated glass units (IGUs) with argon gas fills and metallic oxide coatings. This option balances affordability with strong U-factor performance, helping GTA homeowners cut energy bills while maintaining indoor comfort year-round.

Triple-Pane Low-E Windows

For maximum efficiency, our triple-pane Low-E windows feature dual gas chambers, warm-edge spacers, and soft-coat glass. They provide excellent R-values, superior noise reduction, and condensation control, ideal for busy Toronto neighbourhoods and extreme Canadian winters.

Hard-Coat vs Soft-Coat Low-E Glass

We offer both hard-coat Low-E glass for durability and soft-coat Low-E glass for superior thermal performance. Our experts recommend the best option based on your home’s orientation, climate needs, and energy goals to ensure long-lasting comfort and savings.

Custom Low-E Windows

We manufacture custom Low-E windows in a wide variety of sizes, colours, grille patterns, and trims. Every unit is CSA-tested and ENERGY STAR® certified, giving GTA homeowners the flexibility to match heritage or modern homes while enjoying top-tier efficiency.

Low-E Window Installation & Replacement Services in GTA

We provide expert installation, replacement, repair, and cost guidance for Low-E windows across the GTA, using CSA- and ENERGY STAR® certified products. Explore our full range of services below:

Low-E Window Installation

Our licensed installers fit custom-sized Low-E windows with double or triple-pane IGUs, argon or krypton gas fills, and airtight seals. Each installation is precision-done to improve U-factor performance, reduce drafts, and ensure lasting comfort in GTA homes.

Low-E Window Replacement

We replace outdated windows with CSA-certified Low-E units engineered for insulation and UV protection. Options include retrofit installations or full-frame replacements, boosting efficiency, lowering bills, and increasing property value for Toronto and GTA homeowners.

Low-E Windows Repair & Maintenance

Our experts repair fogged glass, seal failures, and hardware issues to restore performance. We extend the life of existing Low-E units by maintaining thermal insulation, preventing condensation, and ensuring smooth function without full replacement costs.

Low-E Window Cost & Pricing in GTA

Low-E windows in the GTA typically range from $600 to $1,200 per unit, depending on glazing, gas fills, and installation type. We provide transparent quotes, Ontario rebate guidance, and flexible financing to make upgrades cost-effective and stress-free.

Advanced Features of Our Low-E Windows

Our Low-E windows use advanced coatings, insulated glass, and CSA-certified technology to deliver energy savings, UV protection, and all-season comfort in the GTA. Top features of our windows include:

Low-E Glass Coatings for Thermal Control

We apply a microscopically thin metallic oxide layer that reflects infrared heat. This lowers U-factor ratings, reduces winter heat loss, and limits summer solar heat gain, keeping GTA homes comfortable while cutting energy bills.

Double & Triple-Pane Insulated Glass Units

Available in double or triple-pane IGUs, our Low-E windows improve insulation, soundproofing, and R-values. Multiple glazing layers with gas fills ensure superior thermal efficiency and comfort in Toronto’s extreme climate.

Argon & Krypton Gas Fills

We use argon or krypton gas fills between glass panes to slow heat transfer. These dense gases improve R-values, reduce drafts, and enhance the insulating power of Low-E windows, giving GTA homeowners reliable energy savings.

Warm-Edge Spacer Technology

Each unit includes non-metallic warm-edge spacers that minimize thermal bridging. This reduces condensation at window edges, improves energy performance, and extends the lifespan of insulated glass units in Canadian weather conditions.

CSA & ENERGY STAR® Certified Performance

Our Low-E windows are CSA-tested for structural durability, water resistance, and thermal performance. Every unit is also ENERGY STAR® certified, ensuring compliance with Canada’s highest energy efficiency standards.

UV Protection & Fade Resistance

Low-E coatings block up to 95% of harmful UV rays, protecting furniture, carpets, and flooring from fading. Homeowners get natural light without the damaging side effects of unprotected glass.

Condensation & Moisture Control

By maintaining warmer interior glass surfaces, Low-E windows reduce fogging, condensation, and mould risks. This feature improves visibility, comfort, and long-term window health in Toronto homes.

Custom Sizes, Colours & Styles

We offer custom Low-E windows in various grille patterns, trims, and colours. Whether upgrading heritage homes or modern builds in the GTA, our designs improve curb appeal while maintaining certified performance.

Benefits of Low-E Windows for GTA Homeowners

Low-E windows improve energy efficiency, comfort, and protection while boosting home value, making them a smart choice for Toronto and GTA residents. Some prominent benefits of this window type are:

By improving U-factor and R-value performance, Low-E windows cut heat loss in winter and reduce solar gain in summer. This lowers HVAC demand and helps GTA homeowners save up to 30% on energy bills annually.

Low-E coatings reflect infrared heat while allowing visible light inside. This balance keeps Toronto homes warmer during harsh winters and cooler in hot summers, creating consistent indoor comfort across seasons.

Low-E glass blocks up to 95% of harmful UV rays, protecting flooring, furniture, and fabrics from fading. GTA homeowners enjoy natural daylight without sacrificing the longevity of their interior finishes.

Our Low-E windows reduce glare from direct sunlight, improving screen visibility and overall comfort. This feature is especially valuable in south-facing GTA homes where natural light is strong throughout the day.

Low-E coatings keep interior glass surfaces warmer, reducing fogging and condensation buildup. This helps prevent mould growth, improves visibility, and ensures a healthier living environment in humid or cold conditions.

Installing Energy Star® certified windows improves curb appeal, durability, and energy ratings, boosting resale value and attracting buyers across the GTA housing market.

By lowering heating and cooling demands, Low-E windows reduce household energy use and greenhouse gas emissions. Choosing CSA and ENERGY STAR® certified products makes GTA homes more eco-friendly and sustainable.

Energy-efficient upgrades like Low-E windows improve resale value. Buyers look for homes with CSA- and ENERGY STAR® certified products, making your property more attractive and competitive in the GTA market.

Why GTA Homeowners Choose Polaris Windows for Low-E Windows

We are trusted across the GTA for certified Low-E window installation, expert advice, transparent pricing, and industry-leading product warranties. Learn why you should choose us:

Local GTA Expertise & Industry Knowledge

We understand the unique challenges of Toronto and GTA weather. Our team recommends the right Low-E glazing, U-factor ratings, and installation methods to ensure lasting performance in Canadian homes.

Licensed & Insured Installers

Every project is completed by licensed, insured professionals. We focus on airtight sealing, proper IGU placement, and precise installation, giving GTA homeowners confidence in durability and compliance with Ontario building codes.

CSA & ENERGY STAR® Certified Products

All our Low-E windows are CSA-tested for thermal, structural, and moisture resistance and ENERGY STAR® certified. This ensures every installation meets Canada’s strict energy efficiency standards for savings and comfort.

Custom Solutions

From heritage retrofits to modern builds, we provide custom Low-E window designs in a range of trims, finishes, and glazing packages. Each product is engineered to match your style while maximizing efficiency.

Rebates & Flexible Financing Options

We help GTA homeowners access Ontario rebates and federal energy programs, reducing upfront costs. Flexible financing plans make it easier to invest in energy-efficient Low-E window upgrades without budget stress.

Transparent Quotes & Competitive Pricing

Our process includes clear, itemized quotes with no hidden fees. Pricing reflects glazing type, gas fills, and frame materials, giving homeowners confidence that they’re receiving the best value in the GTA.

Lifetime Transferable Warranties

We offer lifetime transferable warranties covering both product and installation. This protects your investment, increases resale appeal, and guarantees long-term performance of your Low-E windows.

Trusted Reputation & Customer Satisfaction

We are recognized for five-star reviews, referrals, and repeat clients. Our commitment to certified products, expert installation, and after-service support has built lasting trust across the GTA community.

Premium Customization Options for Our Triple-Pane Windows

Trim Options

Our trim options offer a refined, finished interior look. Choose from classic casings, clean modern lines, or ornate rosettes. All trims are made from durable, low-maintenance vinyl that resists moisture, keeping your triple-pane windows looking sharp for years.

Jamb Sizes

We provide multiple vinyl jamb sizes to match wall depths and insulation levels. Our PVC jamb extensions and wood alternatives create a precise fit and professional appearance. They’re maintenance-free, strong, and built to handle the GTA’s seasonal shifts with ease.

Exterior Brickmould

Crafted from tough uPVC, our exterior brickmould frames your window beautifully while sealing out moisture and drafts. Available in various sizes and colours, it blends style with function, perfect for boosting curb appeal while protecting your investment.

Colour Options

Customize your triple-pane windows with a range of fade-resistant exterior colours. From timeless neutrals to bold contemporary tones, our finishes are UV-stable and peel-resistant, made to maintain their vibrant look through all of GTA’s weather conditions.

Glass Options

Add character with internal window grids in colonial, prairie, or diamond patterns. Available in white, brass, and pewter, these grids enhance the visual design without affecting energy performance, giving your triple-pane windows both charm and function.

Window Grids

Elevate the charm and character of your windows with Polaris’ elegant window grids, available in timeless white, sleek pewter, or classic brass finishes. These grids come in a variety of styles, including colonial, prairie, and diamond patterns, adding a touch of sophistication to any home. Whether you’re aiming for a traditional, modern, or eclectic look, our grids provide endless design possibilities. Enhance your curb appeal and create visual interest with these customizable accents. With Polaris, transform your windows into architectural masterpieces that reflect your unique style and personality.

Are you Ready to Elevate your Home?

Contact us today to explore our window and door solutions!

Locations Across Ontario

Service Areas

At Polaris Windows and Doors, we proudly serve the Greater Toronto Area with energy-efficient window and door solutions. From Toronto to nearby suburbs, we’re your go-to local experts for boosting comfort, curb appeal, and value.

At Polaris Windows and Doors, we proudly serve the Greater Toronto Area with energy-efficient window and door solutions. From Toronto to nearby suburbs, we’re your go-to local experts for boosting comfort, curb appeal, and value.

Frequently Asked Questions

Low-E windows in the GTA typically range from $600 to $1,200 per unit, depending on whether you choose double-pane or triple-pane glass, argon or krypton fills, and full-frame versus retrofit installation.
Yes. Low-E windows can reduce heating and cooling costs by up to 30% annually. They also improve comfort, protect interiors from UV damage, and increase property value, making them one of the best energy-efficient upgrades for GTA homes.
Hard-coat Low-E glass is durable and cost-effective, often used in colder climates. Soft-coat Low-E glass provides superior insulation and solar control, making it the preferred choice for maximizing energy efficiency in Toronto and the GTA.
Yes. Low-E coatings block up to 95% of harmful UV rays, protecting your flooring, furniture, and fabrics from fading while still allowing plenty of natural daylight into your home.
Yes. By keeping the interior glass surface warmer, Low-E windows reduce condensation and moisture buildup. This helps prevent mould growth, improves visibility, and creates a healthier living environment in GTA homes.
Most Low-E window installations take about 1–2 hours per unit. A full-home replacement is usually completed within 1–2 days, depending on the size of the project and accessibility.
Yes. Polaris provides flexible financing options and helps GTA homeowners access Ontario rebates and Canada Greener Homes incentives, making energy-efficient upgrades more affordable.