Vinyl Replacement Windows

Exceptional Windows by Delco Windows

Are you looking to replace your current windows? Do you need windows for your new home build? When comparing options for window replacement and new construction, there are several factors to consider:

• Energy Efficiency
• Size
• Style & colour
• Installation

Delco Windows & Doors of Toronto has been the choice window installer for homeowners in the GTA since 1989. Delco Windows & Doors specializes in manufacturing and installing high-efficiency replacement vinyl windows, through the use of thermal vinyl UPVC window frame construction. Whether you are looking to replace your old metal, wood, or single pane windows with energy efficient double pane and triple pane windows, or simply want to upgrade your old windows to a new modern style, Delco is your all-inclusive window replacement specialist.

Delco knows Toronto. Delco knows windows.

PRODUCT SPECIFICATIONS

ENERGY STAR® Canada (windows): U-factor ≤ 1.22 W/m²·K *(≈ 0.21 Btu/h·ft²·°F) or Energy Rating ER ≥ 34
ENERGY STAR® “Most Efficient” 2025 (windows): U-factor ≤ 1.05 W/m²·K *(≈ 0.18 Btu/h·ft²·°F) or ER ≥ 40

Tip: ER balances U-factor, SHGC, and air leakage; higher ER = better overall performance in Canadian climates.

Options for Energy Efficient Windows

Delco Windows & Doors has the latest cutting-edge window technology to choose from:

• Insulated thermal high-efficiency vinyl frame (UPVC) construction (these windows transfer less heat-loss, and create a solid insulated window frame)
• Double and triple glazing (number of glass panes)
• Insulative gas-filled technology such as Argon which creates a high-efficient insulative barrier within your window
• Thermal spacers between the frames and panes, to reduce energy loss
• LowE coating films, which reduce winter heat loss in your home, and reduce heat gain in the summer

We help homeowners replace their windows in order to create a home that is energy efficient, sound reducing, solid, yet with healthy ventilation for years to come. Helping you with the right home replacement window that matches your style and budget is what we do best. Home renovations, and new home builds are good reasons to replace windows. Upgrading windows is an investment not only in a house’s value, but also in the quality of life and peace of mind. You can soon enjoy living in a comfortable warm home plus you’ll have new windows that are low maintenance and easy to use.

Are your old windows drafty? Are they noisy?  Are you looking for a way to facelift your home’s style and value?

Window replacement remains one of the top choices for investment return for homeowners.

Options for Window Sizes

Windows truly do come in all shapes and sizes. Bathroom windows. Bedroom windows. Kitchen bay windows. Your home has a unique style, and having the right size to match your existing window openings, or customize the opening for a larger or smaller window, can all be done through Delco’s precision installation process. We precisely measure, and then either match to standard sizes, or custom-manufacture based on your preference. Our window installers will assess your needs and preferences and make a window that fits, . . . creating a stylish, modern home

Options for Window Styles

Delco Windows & Doors offers all standard, as well as custom styles that make that perfect match for your home. The type of window you need matters. The look of your home, whether modern, urban, country, classic, historic, or other, makes it essential to choose the right style of window for your house.

• Casement
• Awning
• Picture
• Geometric
• Tilt and Turn
• Double Slider
• Single Slider
• Double Hung
• Single Hung
• Bay & Bow
• And more

In addition, we offer the right colour match and finishes to fit your needs. You can choose a standard colour or, custom frame colour that perfectly enhances your home’s interior and exterior.

Aluminum Windows Vs Vinyl & Wood Windows

	Vinyl (PVC)	Aluminum	Wood	Fiberglass
Cost	★ Lowest upfront; best value	$$–$$$ higher than vinyl	$$$ higher; varies by species/cladding	$$–$$$ higher than vinyl
Energy Efficiency	★ Good insulation; multi-chamber frames; meets ENERGY STAR easily	Poor unless thermally broken; conducts heat	Very good natural insulator	Excellent; low thermal expansion; great with triple-pane
Maintenance	★ Virtually none; no painting; easy to clean	Low; powder-coat or anodize holds up	High; needs painting/staining unless clad	Low; can be repainted, very durable
Durability	★ Long-lasting; resists rot and moisture	Strong, slim frames; can corrode if untreated	Can warp/rot without care	Very strong, stable; resists swelling/shrinkage
Design / Aesthetics	★ Many colors/finishes; modern look	Sleek, slim sightlines for modern homes	Warm, traditional, natural wood grain	Clean modern; painted finishes hold color well
Best For	★ Most Toronto homes; cost-to-comfort sweet spot	Modern designs with narrow frames	Heritage/traditional homes; authenticity	Premium projects needing strength + performance

Replacement Windows Toronto

When looking for the best replacement windows Toronto has to offer, consider Delco Windows and Doors. Our hundreds of models allow you to create the exact style you want to turn your house into a home to cherish. In addition, our unique direct-to-manufacturer prices give you savings over other Toronto dealers. When researching replacement windows Toronto, see why thousands of homeowners and businesses throughout GTA have chosen Delco for premium replacement windows at the lowest price.

Why Replacement Windows?

Whether you want to fix a broken window, or upgrade your style, or simply want to save energy throughout the year, replacement windows can fix your window problems fast, and give you comfort for years to come. While some homeowners wait for a crack or defective window to develop, most replacement windows are actually for house upgrades.

Painting your home? Upgrading your style? Making your home energy efficient? Delco provides replacement windows Toronto needs for the next generation. Long lasting. efficient, and long-term money saving value. Increase your home value, while increasing your comfort.  And best yet, we will help you see if you are qualified for Canadian government credits and incentives to help pay for your brand new, beautiful replacement windows. Our team of window installers will help you through the entire process so each replacement window helps your house become the home of your dreams.

The Window Installation Process

Replacing a window can be a complex task. Replacement involves:

• Choosing the right replacement window
• Precise measurement
• Possible window opening corrections (carpentry repairs)
• Delivery
• Correct installation and construction
• Interior and exterior finish work (siding, texture, paint, window sill)

If you are slightly off on any measurement, or encounter issues in any step in the process, you could end up with an expensive, drafty window.

Delco handles all of these steps, from start to finish, and offers a transferrable warranty on all windows installed. Other window installation companies can sometimes “outsource” to third-party installers, creating questions in the process. We have our own team of professionally trained in-house installers. This gives you, your family, and future homeowners security and peace-of-mind that your windows will provide long-lasting energy efficiency, and comfort for years to come. Our follow-up customer service ensures that your windows are installed right, and makes an enjoyable home, year-round.

Delco Windows & Doors has been helping homeowners all throughout Toronto, Vaughan, Mississauga, and the GTA for over 30 years. When you are looking for window manufacturers in the Toronto area, consider a company that has long-time experience, and has a showroom like Delco’s. We have expertly installed thousands of new high-efficiency vinyl windows. There is nothing we can’t handle, or haven’t seen before. When considering how to install your new windows, choose a window replacement installer that has years of experience, and warrantees their work.

And because of our three decades in the industry, and scale of size, we can offer an affordable price that beats any major window installer in the Toronto area.

Toronto Window Replacement FAQ

Common Questions Toronto Homeowners Ask Before Replacing Vinyl Windows

Need a clearer answer?

Book a Window Replacement Estimate for Your Toronto Home

✓ Check whether the issue is glass, frame, seal, or installation related.

✓ Compare double-pane and triple-pane options for your room conditions.

✓ Plan a cleaner replacement with less disruption inside the home.

Contact Us Call Now

Recommended before replacing multiple windows or choosing a new glass package.

Why do my Toronto windows still feel cold even when they are closed?

A closed window can still feel cold when air leaks through the sash, worn weatherstripping, weak frames, or poor insulation around the opening. In many older Toronto homes, the issue is not only the glass. The frame and installation gap can also let winter air move into the room.

Practical solution: Replace the old unit with a properly measured vinyl window, use a tighter operating style such as casement or awning where suitable, and make sure the installation includes correct insulation and finishing around the opening.

Is condensation on the inside glass a sign that I need window replacement?

Condensation on the room-side glass usually means warm indoor air is meeting a cold glass surface. This can happen during Toronto winters, especially in rooms with high humidity, limited airflow, or older windows with weaker insulation.

Practical solution: Improve ventilation and humidity control first. If the glass still gets very cold, vinyl replacement windows with better insulated glass can reduce the surface temperature gap and help control recurring condensation.

Will new vinyl windows help reduce traffic noise from busy Toronto streets?

New windows can help reduce outside noise, but the result depends on the glass package, air sealing, frame quality, and installation. Homes near major roads, streetcar routes, rail lines, or dense intersections often need more than a basic glass upgrade.

Practical solution: Ask for a window and glass recommendation based on the room location. Better sealing, thicker glass options, and proper installation around the opening usually matter more than simply changing to a new window.

Should I choose double-pane or triple-pane windows for a Toronto home?

Double-pane windows are often enough for many Toronto homes, especially when the frame, spacer, coating, and installation are strong. Triple-pane can make sense for colder rooms, north-facing rooms, nurseries, bedrooms, and areas where comfort or noise control is a higher priority.

Practical solution: Do not choose glass only by price. Match the glass package to each room. A front bedroom on a noisy street may need a different setup than a rear-facing kitchen window.

Can vinyl replacement windows fix drafts around brick openings?

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