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Windows and Doors Vaughan

If your windows are fogging up, sticking shut, or letting in cold drafts, you are not imagining it: older windows take a real beating from Vaughan's winters. Delco Windows and Doors is a Canadian manufacturer and installer based right here in Concord. This page covers everything you need to know before replacing your windows: what proper installation involves, which styles hold up best in this climate, and how to get a free, no-obligation in-home consultation to see the materials for yourself.

When Vaughan's Winters Start Showing Up Inside Your Home

We hear the same story from homeowners across Vaughan every winter: the furnace runs constantly, there's a cold spot by the living room window, and condensation keeps forming between the panes no matter how many times it gets wiped down. Sound familiar? If you've already had a few companies out to quote "just the one bad window," and the number kept creeping up once they saw the rest of the house, that's usually a sign the windows were never matched to what a Concord or Woodbridge winter actually demands.

That's the gap we built our team around. We're not a subcontractor crew reselling someone else's product: we manufacture our own windows and doors in-house, which means every unit installed in Vaughan is engineered for the swings this region sees, from humid summers to the wind coming off the open stretches near Highway 7 in January. Our installers are certified and insured, and they're our own employees, not a rotating list of contractors.

When you're comparing windows and doors in Vaughan, the real question isn't which company quotes the lowest number; it's which one will still stand behind the work in ten years. That's exactly what our lifetime, fully transferable warranty is built to answer, and it's why a free in-home consultation makes more sense than a phone quote: you can see the materials and ask us anything before deciding.

Two Delco crew members carrying a large new window unit up on ladders at a brick and stone home, window installation in Vaughan

Window and Door Services in Vaughan

Delco installer in a branded shirt sealing a new black casement window on a white-brick home, window installation in Vaughan

Window Installation

When it's time to replace a window in Vaughan, the process starts with a design consultation, not a sales pitch. Our team measures the opening, talks through material options (vinyl, aluminum-clad, wood-hybrid, fiberglass, or steel), and explains how each performs against Canadian winters before anything is manufactured. Because we build every window in-house, there's no third-party supplier delay between the order and the install date. Our certified, insured installers handle the entire job themselves, and every unit ships with our lifetime, fully transferable warranty covering the frame, the sealed glass, and the hardware, not just the labor.

Grey-brick bungalow with new black-frame replacement windows and basement windows above a landscaped garden, vinyl window installation and replacement in Vaughan

Vinyl Window Installation and Replacement

Vinyl is the standard for Vaughan homes because it resists moisture, never needs painting, and insulates against the cold better than uninsulated metals. We manufacture our own multi-chambered vinyl frames right here in Concord, filling them with high-performance glass units designed for our exact climate. From the initial measurement to the final caulking, the job is handled entirely by our own insured staff. Every vinyl window we install comes with our lifetime, non-prorated warranty covering the frame and the glass.

Black-frame casement windows opened outward above a fixed pane in a bright kitchen, casement window installation in Vaughan

Casement Window Installation

Casement windows crank outward and seal by pressing tightly against the frame, which makes them one of the better performers for reducing drafts, provided the frame and hardware are installed to close that tight. We manufacture our casement units with hardware built for repeated use through Vaughan's freeze-thaw cycles, and installation is handled start to finish by our own certified team. It's a straightforward swap for most homes, and it's one of the styles our showroom in Concord has on display, so it's easy to see and open one in person before deciding.

White-painted brick two-storey home with new black-frame windows, double hung window installation in Vaughan

Double Hung Window Installation

Double hung windows allow both the top and bottom sashes to slide up and down, making them incredibly practical for easy cleaning and controlled ventilation. Because there are more moving parts, cheap hardware will eventually let cold air slip through. We manufacture our double hung units with reinforced meeting rails and premium weatherstripping to stop drafts before they start. Our in-house team installs them with precision, ensuring both sashes operate smoothly year after year.

Tall black-frame window with an upper operable section in a red-brick wall, awning window installation in Vaughan

Awning Window Installation

Awning windows hinge at the top and open outward from the bottom, which makes them a common choice for basements or spaces where you want ventilation even during light rain. Getting the pitch and seal right on an outward-hinged window matters more in this climate than people expect, since a poorly sealed awning window is an easy spot for ice to form on the frame in January. We manufacture and install these to spec, backed by the same lifetime warranty on the frame, glass, and hardware as the rest of our catalog.

Large three-section picture window with an arched half-round window above on a stone home, picture window installation in Vaughan

Picture Window Installation

Large, fixed picture windows bring in maximum natural light, but they also expose a huge surface area to Vaughan's harsh winter winds. Since these windows do not open, the focus is entirely on energy efficiency and structural strength. We build these units with reinforced frames and premium glass coatings to trap your furnace heat inside where it belongs. Our installers handle the heavy lifting, sealing the oversized glass perfectly into the opening so you get a clear view without the cold spots.

Delco installer on a ladder fitting a large wall of new windows inside a vaulted living room, tilt and turn window installation in Vaughan

Tilt and Turn Window Installation

European-style tilt and turn windows offer a massive upgrade in airflow and security, swinging inward like a door or tilting back at the top for rain-safe ventilation. These units require heavy-duty hardware to handle the dual-action mechanism, which is why we build and install them with components tested for Vaughan winters. Our certified in-house crew ensures the complex hinges and multi-point locking systems are perfectly aligned. The result is a high-performance window backed by our fully transferable lifetime warranty.

Red-brick home under renovation with a new black-frame bay window and windows, ladders in front, bay window installation in Vaughan

Bay Window Installation

A bay window adds depth and natural light to a Vaughan living room or dining space, but it also adds three seams where cold air can work its way in if it isn't installed precisely. Our in-house team engineers the supporting structure and the seal as one system, rather than fitting a generic frame into an opening it wasn't built for. Bay windows are available across our vinyl, aluminum-clad, and wood-hybrid lines, in any of our 50+ styles and finishes, so the result matches the rest of the home instead of standing out as an obvious retrofit.

Interior view of a five-panel bow window looking out on a snowy yard, bow window installation in Vaughan

Bow Window Installation

Bow windows curve outward in a gentle arc, usually across four or five panels, and they're one of the more demanding installs to get right because every panel has to align and seal at a slightly different angle. We manufacture bow window units to the exact opening, not a standard size trimmed down on site, and our installers are the same certified, in-house crew on every job, never a subcontractor. That consistency is part of why we can back the completed installation with the same lifetime, non-prorated warranty we offer on a standard window.

New two-storey home with black-frame upper windows and new basement windows at ground level, basement window replacement in Vaughan

Basement Window Replacement

Basement windows in Vaughan homes often sit close to grade, which means they take on more moisture and ground-level cold than any other window in the house, and it shows: fogged glass, rust on old hardware, or a frame that's started to soften. We replace these with units engineered for that exposure, and because we manufacture in-house, we're not limited to whatever a supplier happens to have in stock for an odd-sized basement opening. Installation is done by our certified team, and it's covered under the same lifetime, transferable warranty as every other window we install.

Modern stucco home with slim black-frame and arched windows and black glass garage doors, aluminum window installation in Vaughan

Aluminum Window Installation

Modern home designs often call for the sleek, narrow sightlines that only aluminum frames can provide. While older aluminum windows were notorious for letting the cold in, we manufacture ours with advanced thermal breaks to block Vaughan's freezing temperatures. These are highly durable, low-maintenance frames built directly in our Concord facility. Our own employees handle the entire installation process, ensuring the rigid frames sit perfectly plumb and seal out the weather for good.

Black double entry doors with tall frosted glass inserts in an arched brick opening, front door replacement in Vaughan

Front Door Replacement

Your front door takes the hardest hit from rain, snow, and daily use. A replacement needs to do more than look good, it has to close tight enough to keep the hallway warm in January. We manufacture and install steel and fiberglass entry doors built specifically for this climate, complete with heavy-duty weatherstripping and secure hardware. Since our in-house team handles both the build and the install, your new door arrives exactly as measured and carries our lifetime warranty on both the slab and the frame.

Framed new-build room with a large wall of new windows and glazed openings in sunlight, lift and slide patio door installation in Vaughan

Lift & Slide Patio Door Installation

A sliding or folding patio door is essentially a moving wall of glass, and if it does not seal perfectly, you will feel the draft every time you sit down. We build our patio doors with high-efficiency glass and heavy-duty rollers so they glide easily and lock securely, even after years of freezing rain. Our certified crew installs every unit to ensure the tracks are perfectly level, avoiding the sticking and dragging that plagues cheaper doors.

Two installers on ladders fitting a large wall of new windows inside a new-build home, wholesale window supplier in Vaughan

Wholesale Window Supplier (B2B)

For contractors and builders working across Vaughan, waiting on third-party supply chains eats into project margins. We manufacture our windows right here in Concord, giving local builders direct access to reliable, high-volume inventory without the middleman markup. Because we control the production floor, we can guarantee exact specifications and consistent delivery timelines for your jobs. Partnering with us means you get Canadian-built, winter-ready products that keep your clients happy and your crews moving.

Modern grey vertical-groove entry door with a full-height bar handle and glass sidelite, custom door manufacturing in Vaughan

Custom Door Manufacturing (B2B)

When your retail or construction clients want a specific entry system, standard catalog sizes rarely cut it. We manufacture custom doors locally in Concord, supplying Vaughan businesses and builders with heavy-duty products built for our climate. From specific panel configurations to upgraded locking mechanisms, we build exactly what your project calls for. Working directly with the manufacturer means you get priority access, precise quality control, and a product that prevents costly callbacks.

Why Vaughan Homeowners Choose Delco

In-house window and door manufacturing factory icon, Delco Windows and Doors Vaughan

Manufactured and Installed In-House

We are a full-service provider. We build your windows directly in our Concord facility and install them using our own certified, insured in-house team. You never have to deal with third-party supplier delays or rotating subcontractor crews.

Lifetime warranty shield icon, Delco Windows and Doors Vaughan

The Strongest Warranty in the Industry

We offer a comprehensive lifetime, fully transferable, non-prorated warranty. It covers the frames, sealed glass failures, hardware, and components. Because we build and install the units ourselves, the team that built your windows is the same team that stands behind them.

Trusted since 1989 history icon, Delco Windows and Doors Vaughan

Trusted Locally Since 1989

We have been manufacturing and installing windows for Toronto and the GTA for over 30 years. Our work is backed by a 9.8/10 rating on HomeStars and a 4.9/5 on Google, proving we take care of our customers long after the installation day is over.

Areas We Serve Near Vaughan

Since our Concord showroom sits right off Highway 7 and Highway 400, our installers can reach most homes in the areas below within the same day, which matters when a draft or a fogged-up window needs a fix, not a two-week wait for a truck to cross town.

Vaughan Neighbourhoods (Near Concord)

Woodbridge, Maple, Thornhill (Vaughan side), Vellore Village, Patterson, Rutherford, Vaughan Metropolitan Centre, Carrville, Kleinburg

Surrounding Communities

Richmond Hill, Thornhill (Markham side), North York (including York University Heights, Downsview, Bathurst Manor, and Jane and Finch)

Get Your Free In-Home Consultation

You already know what a draft in January feels like, so there's no reason to sit through another one deciding. If you've been searching for windows and doors in Vaughan and you're ready to see the actual materials, not just a quote over the phone, our team will come to you: assessment, pricing, no obligation. Every window and door we install is backed by a lifetime, fully transferable warranty, built by the same in-house team that measures your home and stands behind the finished job. Request your free in-home consultation today and get a straight answer on what your home actually needs.

Our Hassle-Free Process In 4 Easy Steps!

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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.

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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.

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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

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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

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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 Reviewer Image

Adam Rivers

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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.

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Geraint Reviewer Image

Geraint

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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. Reviewer Image

Ruven Y.

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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!

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Jim Bird Reviewer Image

Jim Bird

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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 Reviewer Image

Maureen Fuller

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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.

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Noah Klar Reviewer Image

Noah Klar

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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.

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R. Pierce Reviewer Image

R. Pierce

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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.

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Sandra Reviewer Image

Sandra

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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.

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Sarah Reviewer Image

Sarah

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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 Reviewer Image

Stephanie Lannaci

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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.

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Fabrizio Macieri

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

Joey Oliveira Reviewer Image

Joey Oliveira

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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 Reviewer Image

Angie Gandhi

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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.

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Linda Reviewer Image

Linda

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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.

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Serban Dinca Reviewer Image

Serban Dinca

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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 Reviewer Image

Adrian Nema

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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 Reviewer Image

Jonathon & Sheri Mcintosh

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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 Reviewer Image

Maria

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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.

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Alfy Reviewer Image

Alfy

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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!

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Mi Reviewer Image

Mi

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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.

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Esther Tobin

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