Window Installation Toronto | Delco Windows & Doors (Since 1989)

Why Toronto Homeowners Are Replacing Their Windows Right Now

Toronto does not give your windows an easy life. From December through March, temperatures along the waterfront can drop below minus fifteen, while freeze-thaw cycles inland, through Danforth Village, Roncesvalles, and the older streets of the Annex, push and pull at every frame, seal, and gasket until something gives.

When something gives, you feel it. Maybe it is the cold draft that follows you into the living room no matter how high you turn the thermostat. Maybe it is the fog trapped between the panes, the kind that never clears because the sealed unit has failed. Or maybe it is just the slow, steady anxiety of owning a home where you are not sure what is going wrong, only that something is.

We hear these concerns every week. Are your windows actually the source of the problem, or is it insulation, or the furnace? What will replacement realistically cost, and is now the right time? How disruptive is the installation process for a family that does not want to be living in a construction zone for days?

These are fair questions, and answering them honestly is the first thing our team does during a free in-home assessment. Window installation and replacement done correctly means the right product for your specific home, installed without surprises, and backed so that you are not having this same conversation in five years.

What Professional Window Installation in Toronto Actually Involves

Professional window installation at Delco is not a one-size-fits-all service. Our team starts with a detailed in-home measurement and assessment, because a window that fits the catalogue does not always fit a Toronto home built in 1930. We manufacture our products in-house, which means we control the tolerances, the materials, and the timeline. Our certified, insured installers complete every job, and when they leave, the site is clean and the paperwork for your lifetime warranty is already in your hands.

Bay Window Installation

A bay window changes how a room feels from the inside and what a Toronto home looks like from the street. Three panels angled outward create genuine depth, bring in more natural light, and produce a shelved interior space that is as practical as it is distinctive. Delco's bay window units are manufactured and installed by our own team, fitted to your exact opening, and covered under the same lifetime, fully transferable warranty as every other product we make. If your current bay unit has a fogged centre pane or a frame that shifts in winter, a replacement is worth assessing.

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Interior view of a five-panel bow window installed in a Toronto living room

Bow Window Installation

A bow window uses four or more panels in a gentle curve, creating a wider, more panoramic view than a standard bay. In Toronto homes with larger facades, this is one of the most visually striking replacement window options available. Delco manufactures bow units to precise measurements, which matters because curved assemblies are particularly sensitive to installation quality. Our in-house team fits, seals, and finishes every bow window installation, and the lifetime warranty covers the full assembly, including the sealed glass units and all hardware.

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Delco installer fitting a black casement window on a Toronto home

Casement Window Installation

Casement windows hinge at the side and crank outward, creating a full, unobstructed opening with no centre rail blocking airflow or sightlines. For Toronto homeowners looking to improve ventilation in rooms that tend to feel stuffy in summer and drafty in winter, casement units are consistently one of the most practical choices. Delco offers casement windows in vinyl, aluminum-clad, and fiberglass, with over fifty style configurations available. All hardware and sealed glass units are covered under our lifetime, non-prorated warranty.

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Black-framed replacement windows with lower operable panes on a Toronto bungalow

Awning Window Installation

Awning windows hinge at the top and open outward from the bottom, which means you can leave them open during a Toronto rainstorm without water getting in. They are commonly installed above or below fixed panes in living rooms, kitchens, and bathrooms, and they pair well with casements in larger openings. Delco's awning windows are built for Canadian weather with reinforced frames and tight seals. Installation is handled entirely by our in-house certified team, and the lifetime warranty covers frames, hardware, and sealed glass.

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New basement and upper-floor windows installed on a Toronto home by Delco

Basement Window Replacement

Basement windows in Toronto homes are often the most neglected, and they are frequently the biggest source of heat loss and moisture infiltration. Older basement units tend to have thin frames, single-pane glass, and corroded hardware that no longer closes properly. Delco's basement window replacements use materials rated for Canadian climate conditions, including reinforced vinyl and fiberglass options that resist frost, moisture, and warping. Our team handles the full installation, including any required framing adjustments, and every unit carries the same lifetime warranty coverage as our above-grade products.

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Slim black-frame SLIMLINE89 windows on a modern Toronto home

SLIMLINE89 Series Windows

The SLIMLINE89 Series is Delco's own engineered product line, built for Toronto homeowners who want slimmer sightlines without sacrificing energy performance or structural integrity. The narrow frame profile maximizes glass area and allows more natural light into the home, which matters in rooms that face north or have limited exterior exposure. Like all Delco products, the SLIMLINE89 is manufactured in-house to precise tolerances, installed by our certified team, and covered under our lifetime, fully transferable warranty. It is available in multiple finishes to suit both modern and traditional Toronto architecture.

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Delco installer fitting new windows inside a bright Toronto living room

Tilt & Turn Window Installation Toronto

Tilt & turn windows are a European design that opens two ways from a single handle. Tilt the sash in at the top for gentle, secure ventilation, even on a wet Toronto day, or turn the handle and swing the whole window inward for full airflow and easy cleaning of the outside glass from inside your home. Delco's tilt and turn windows are built with steel-reinforced, multi-chamber frames and a multipoint locking system that engages on all four sides, for a tight seal through Toronto winters. They are available in single, double, fixed-combination and transom configurations, installed by our in-house certified team, and covered under our lifetime, fully transferable warranty.

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Common Questions About Window Installation in Toronto

How long does window installation in Toronto usually take for a typical house?

For most Toronto homes, a full window replacement across eight to twelve units takes one to two days when handled by a properly staffed installation crew. Single-room or single-window jobs are typically completed in a few hours. The honest answer depends on the number of units, the window types, and whether any framing or structural work is needed. During your free in-home assessment, our team will give you a realistic timeline specific to your home before any work is scheduled.

Will my windows be installed differently because of Toronto winters? Does timing matter?

Window installation can be completed year-round in Toronto, and our team works through winter months regularly. Colder temperatures do require specific sealing and flashing techniques, particularly around older brick and stone facades, which is exactly why we use an in-house certified crew rather than subcontractors who may not have that cold-weather experience. If you are currently losing heat through failing windows, waiting until spring is often the more expensive decision.

What does a lifetime warranty actually cover on replacement windows in Toronto?

Delco's lifetime warranty covers window frames, sealed glass unit failure (the fogging or condensation you see between panes), all hardware, and components. It is non-prorated, meaning the coverage does not decrease over time, and it is fully transferable if you sell the home. Most manufacturer warranties in Canada cover sealed glass for a limited term only, and they exclude hardware. Ours does not. If something fails, we fix it. The full warranty terms are available on request during your consultation.

Our Hassle-Free Process In 4 Easy Steps!

Step 1

DESIGN CONSULTATION

Our process begins with a personalized design consultation. Our experts work closely with you to understand your needs and preferences, providing tailored design options that match your home’s style.

Step 2

MEASURE & MANUFACTURE

After finalizing the design, we take precise measurements of your openings. Our skilled craftsmen then manufacture your doors and windows in our Toronto facility, using high-quality materials and advanced techniques.

Step 3

INSTALLATION

Our certified installers handle the installation with care and professionalism, ensuring a perfect fit for optimal performance and aesthetics. We work efficiently, minimizing disruption and leaving your home clean

Step 4

Post-Installation Support

Our commitment continues after installation with comprehensive support. Whether you need maintenance advice, adjustments, or warranty services, our dedicated team is always ready to assist.

Read Our 5-Star Testimonials

Amazing service and quality products. Installation was on time and on budget. Our windows look awesome. Edan gave us his full attention from the first call and every step of the way after. Highly recommend.

Adam Rivers

New windows and door for basement and new metal/glass back door for main house - even through my indecisiveness and the covid-19 challenges Ayal and his installers were patient with me and I am very happy with the look and quality of the install.

Geraint

It was a pleasure dealing with Jack and all Delco's stuff. The windows arrived on the date for which were promised. The quality of the service, product and workmanship were excellent. I would gladly recommend Delco to anyone need Windows and Doors

Ruven Y.

We're so happy with our new front door. Very high quality finish, beautiful window. Installation was impeccable and done very quickly. Hinge and 3-point lock mechanism fit perfectly and feel very solid. Very attentive customer service. Door really ups our curb appeal!

Jim Bird

I just had my front door replaced and cannot say enough good things about this company. From start to finish their professionalism is outstanding, and the workmanship excellent. Would highly recommend

Maureen Fuller

Delco supplies my windows and doors for renovations throughout the GTA. Edan and his staff are the best. Well priced quality products and personalized service. Highly recommended.

Noah Klar

We have 3 sliding doors and a double front door replaced. All work was done professionally but well qualified craftsman. Watching them work it was clear they new what they were doing and work is first class.

R. Pierce

We used Delco to replace our windows and patio door and door glass inserts. We are very happy with the quality of the windows and patio door and were very impressed with the installers as well who were very professional and clean. Thank you Nasho and George for your hard work and patience. Also, a big thank you to Ayal who always returned my calls and answered all my questions.

Sandra

Delco provided all the exterior doors for our new home build. Ayal was great and the company is very customer service oriented. The doors look beautiful, the hardware is high end and the install went very well. Overall we are very happy with the product and service.

Sarah

Ayal and Edan were great to work with. They provided extensive product knowledge and had a great selection in their showroom. The windows and doors changed the whole look of the house and gave a much needed modern yet classic update. Great quality and workmanship! Thank you!

Stephanie Lannaci

Both my wife and I could not have been happier with the product and service displayed by the owner and the installers. They had kept true to there word and the timelines. The process was catered to our schedule and was seamless.

Fabrizio Macieri

Had a great experience with Delco. They were professional and did a great job on time.

Joey Oliveira

Our experience with Delco Doors has been very good. We needed to replace out front door. Our old 6 feet Steel doors were removed and replaced with Delco 8 feet Fiberglass Doors. The installation went very smoothly, and the guys made sure that everything was fitting squarely and tight. They cleaned up after they were done and were very pleasant to work with. Would highly recommend them.

Angie Gandhi

A fantastic company to deal with from start to finish. They were professional, courteous and the project was completed in the timeframe agreed upon. Would highly recommend Delco.

Linda

I would recommend Delco Windows and Doors without any hesitation. The quality of the products is very good, the installation exceeded my expectations and the responsiveness and punctuality is impressive.

Serban Dinca

Very good and timely service. A pleasure to work with Edan Next time I need windows and doors I will definitely call them again

Adrian Nema

Recently ordered a custom window from Delco. We are extremely happy with the level of customer service - Elyse went out of her way to notify us when the window came in and came in to work on her day off so we could come pick up the window. If we need another window we will definitely come back to Delco!

Jonathon & Sheri Mcintosh

I would highly recommend this company, the final product was beyond my expectations, My new front door makes my house standout so happy thank you Delco Windows and doors. I will definitely use Delco Windows and doors again in the future thanks to Edan and the installers

Maria

Existing door replacement is a delicate project. I am very satisfied with job well done by Ayal Jack and his installer. Highly professional team, they know their business well, easy to deal with, very accommodating. He guided us step by step to select the best fit for our purpose.

Alfy

I would highly recommend this company. They were very easy to deal with, accommodating and professional. The final product was beyond my expectations. The products completely transformed the front of my house and for sure increased its value and curb appeal. Thanks!

Happy experience from start to finish. Thank you to Edan for going out of his way to meet us late one evening and his helpful consultation in the showroom especially thank you to the extremely professional, clean and friendly crew of installers. Everything was as promised, the men arrived on time, their work was immaculate and complete, their craftsmanship beyond reproach.