Ottawa’s Trusted Family Run Window, Door & Siding Installation Company Since 1970

Q: Do new windows really lower my energy bills?

Yes. Upgrading to modern ENERGY STAR-rated triple-pane windows can significantly reduce heat loss. Many Ottawa homeowners notice lower heating bills within the first winter after installation.

Q: Do you serve my area?

Yes. We serve the entire Greater Ottawa region, including Barrhaven, Kanata, Nepean, Orleans, Stittsville, Manotick, Carleton Place, Kemptville, Rockland, and surrounding communities.

Ottawa’s oldest family-owned window and door company, proudly Canadian and serving Ottawa and surrounding communities for over 55 years with durable, energy-efficient solutions built to last.

Buy Now – Don’t Pay Until July 2027!
SPECIAL – New Patio doors starting at $2400
Family owned and operated for 55+ years
Fully licensed and insured
Seniors and Military Personnel Discount

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Modern Ottawa house with updated windows and doors

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Upgrading your home? Contact Bestcan Windows & Doors for a free estimate.

From replacement windows to new front doors, vinyl siding replacement to foundation repairs, there are no project too big or too small for our team. To schedule your complimentary, no obligation estimate, please fill out the following form or call our office at 613-226-7611

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Family-Owned & Operated Since 1970

BestCan Windows & Doors has been Ottawa’s trusted window and door installer for over 55 years. Family-owned, locally operated, and backed by a full lifetime warranty, we’re here to make your home more comfortable and energy-efficient at a price that works for you. Call us at 613-909-3532.

Now Offering Full Lifetime Warranties On All Window & Siding Products And Labour.

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Ottawa Tudor-style home with black-trim windows and door

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613-226-7611

Why Ottawa Homeowners Choose Us

Here are just a few of the many reasons your neighbours choose BestCan Windows & Doors for all their windows and door replacements in Ottawa.

Family-owned and operated since 1970

A+ rating with
the Better Business Bureau

Installation crews that have worked for BestCan for 20+ years

State of the art products including energy saving windows & doors with lifetime warranties

Over 55,000 satisfied Ottawa homeowners served

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This Month’s Promotions

Extra Discount For Seniors and Military Personnel

Home Window Installation Ottawa

For a free estimate, please call 613-909-3532 or Request a Free Quote

Our Windows and Doors Services

Grey vinyl siding with window and patio door on Ottawa home deck

Windows

View Our Window Selection

Patio Doors

View Our Patio Door Selection

Black front door and windows on Ottawa brick home exterior

Exterior Doors

View Our Exterior Door Selection

Siding

Special offer for 2026

15 Months of No Interest and No Payments for Doors and Windows in Ottawa

For our valued customers, we offer a range of flexible financing options tailored to their needs.

Take Advantage Today

Ottawa’s Most Trusted Window & Door Company

BestCan Windows & Doors has been serving Ottawa homeowners for over 55 years — and we’ve earned every one of those years the hard way, one satisfied customer at a time. As a Canadian family-owned business, we’re not a franchise or a call centre. When you call us, you speak directly with people who have been installing windows and doors in this city for decades.

Our installation crews average over 20 years with BestCan — meaning the team that shows up at your door knows Ottawa homes inside and out. We’ve completed projects across Nepean, Kanata, Barrhaven, Orleans, and the entire surrounding region, building a reputation backed by our industry-leading lifetime warranty on all products and labour.

Our Work

Save Money Every Month with Energy-Efficient Windows & Doors

Ottawa winters are unforgiving, and old, drafty windows are one of the biggest sources of heat loss in a Canadian home. Replacing your windows with ENERGY STAR-rated products doesn’t just make your home more comfortable; it can meaningfully reduce your monthly heating and cooling costs year-round.

At BestCan, we help you choose the right window and door solution for your home’s specific needs and budget, and we install everything to the highest standard so you get the full benefit of your investment. Ready to find out how much you could save? Request a free, no-obligation quote today.

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Smiling couple in modern, updated kitchen by BestCan

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Let other homeowners know how the BestCan experience helped transform your home!

Serving Ottawa and the Surrounding Region

We specialize in transforming homes with new window and door installations, top-notch vinyl siding, and expertly crafted eavestroughs and soffits. Our services cover the Greater Ottawa region, including Barrhaven, Stittsville, Kanata, Manotick, Nepean, Vanier, Orleans, and many other surrounding areas.

If you’re a homeowner with questions about our high-quality products or installation services, don’t hesitate to call BestCan Windows & Doors directly at 613-909-3532. We’re here to enhance your home with our exceptional offerings.

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Our Window Replacement Process

Replacing windows is a precise job, and choosing licensed, experienced installers makes all the difference. Here’s exactly how our team handles every installation:

We measure your existing windows precisely to ensure the replacements fit perfectly
We carefully remove the old frames without causing damage to your home
We prepare the opening by cleaning it and repairing any damage found
We position and secure your new energy-efficient windows
We apply insulation and weatherstripping to maximise ENERGY STAR performance
We complete all finishing touches and walk you through your coverage before we leave

Modern beige home Ottawa with large windows, shutters, and siding

BestCan Windows & Doors Client Testimonial

Had new windows and a new front door installed at my house by BestCan and couldn’t be happier. The installation was smooth, the team was professional, and the price was great. Everything was done on time and with care. Would definitely recommend them to anyone looking for quality work at a fair price!

Nick Andy

Best Can recently completed a painting job for us. They painted (and caulked where necessary) all baseboards, trim, and doors throughout the house. Planning the job was straightforward and communication was good. The painters (Libby, and later joined by Marissa) arrived on time, paid attention to detail, were communicative and very thorough in their work. Overall, they did an excellent job.

Maureen Tootle

From faux tile on my entrance floor, kitchen and powder room, to hardwood throughout the upstairs and laminate in my man cave, BestCan proved to be experts in providing for my flooring needs. What was most impressive though was the job they did on my kitchen, which required a complete tear down and re-build. With Cathy providing the artistic vision and Ben, the tradesman know-how, the end result was a kitchen you might very well see pictured in one of those renovation magazines.

Mike Graham

We have used Bestcan for a few renovations. A few years ago we had them replace windows and was very pleased with their work. In January 2024 we hired them to do a complete renovation on our bathroom. Bill Mann arranged everything. Vitali and Alex came to do the work. They were very professional. They are very pleasant, hardworking, trustworthy and dependable and always cleaned up at the end of their workday. Vitali and Bill always answered any questions or concerns we had. The bathroom turned out beautiful. We love it! So in May 2024 we hired them again to remove our 40+ years carpet from our living room and hallway and replace it with vinyl flooring. They did another great job! Very professional and pleasant! We would definitely use them again for any other future renovations. Thanks again to Vitali and Alex for doing such a great job!!

Betty-Anne McQuade

We had most of our windows replaced by BestCan. We had excellent communications with both the owners and installers throughout the process. The installations were done very well, quietly and cleanly, and affordably. Very happy with the work!

Paul Csagoly

We had our bathroom and our sunroom renovated with BestCan. They moved quickly and efficiently, with work being done mostly every day. They listened to our requests, and came along with us to pick out the materials that we would need. We took out some walls, as well as removed a window and added a wall, which we thought would be an expensive task, but BestCan had fair and workable prices for our needs. Joe was easy to talk to and was always a phone call away if we had a question or concern. The communication of the timelines for work and materials was excellent, and we never felt like we were left in the dark. Would definitely use them again for our future projects.

Samantha Oakley

Superb from start to finish! We worked with BestCan to replace all of the windows and doors in our house in 2023 and have nothing but positive things to say about our experience. They were careful to take the time to explain every detail and answer every question, installation was smooth, and the communication was always effective and professional. A special shoutout to Lee Bailey who was there to guide us through the whole process. We would definitely recommend BestCan and will absolutely use them again should the need ever arise.

Tracey Paterson

I have done a few things on my home with Bestcan and I am completely satisfied with their work. I am especially satisfied with my windows and siding which was completely replaced. Steve was awesome to deal with and when I wanted a new kitchen they wowed me. I will not hesitate to recommend this company.

Brenda Sylvester

I've been dealing with Best Can for over 10 years and I have never been disappointed once. Their professionalism and attention to detail was amazing. They start and finish on time Their installers were very polite and would go out of their way to make the project go smooth. I've referred them to family and friends and they all called me to thank me for the referral. I still continue to do business with them and will continue to refer them to anyone

K

Black sliding patio doors on Ottawa brick home exterior

Caring for Your Windows & Doors

A little regular care goes a long way toward keeping your windows performing at their best for decades to come.

Clean regularly: Use a soft microfibre cloth with mild soap or glass cleaner monthly to keep frames and glass clear
Inspect occasionally: Check frames each season for chips, cracks, or warping. Catching small issues early prevents bigger problems later
Repair quickly: If you spot damage to a pane or frame, call us promptly; delays can lead to full replacement sooner than necessary
Re-seal when needed: Worn weatherstripping and caulking cause drafts; resealing keeps energy bills low and your home comfortable
Schedule annual maintenance: A professional inspection once a year helps your windows last up to 25 years

Frequently Asked Questions

How long does a window replacement take?

Most window replacements are completed in a single day. A typical Ottawa home with 8–12 windows is usually finished within 2-3 days. We work efficiently and clean up fully before we leave. Our window installation in Nepean and across Ottawa is designed to be quick and disruption-free, so you’re back to normal the same day.

What's the best time of year to replace windows in Ottawa?

Windows can be replaced year-round, including winter. Modern installation techniques and weatherproofing materials mean cold weather doesn’t affect the quality of the installation. Many homeowners find it easier to book in fall or winter when demand is lower. We install windows and doors in Ottawa year-round, so there’s no wrong time to upgrade your home.

Do new windows really lower my energy bills?

Yes — significantly. Upgrading to modern ENERGY STAR-rated triple-pane windows can reduce heat loss by up to 50%. Our energy-efficient windows in Ottawa are built specifically to handle the demands of our local climate. Most Ottawa homeowners notice a difference in their heating bills within the first winter. Pairing energy-efficient windows in Ottawa with proper installation is key to seeing those savings year after year.

Does BestCan offer financing?

Yes. We offer 15 months of no interest and no payments through Fairstone Bank as well as a variety of other financing options. Get pre-approved quickly and start your project right away. Learn more about financing. It’s an easy way to invest in new windows and doors in Ottawa without paying everything up front.

What warranty do you offer?

We provide a full lifetime warranty on all window and siding products and labour — covering both the product and the installation at no cost to you.

Do you serve my area?

We serve the entire Greater Ottawa region, including Barrhaven, Kanata, Nepean, Orleans, Stittsville, Manotick, Carleton Place, Kemptville, Rockland, and surrounding communities. See all areas we serve. From window installation in Nepean to projects across the surrounding region, we bring the same quality workmanship to every home.

Ottawa’s Trusted Family Run Window, Door & Siding Installation Company Since 1970

Get a FREE Quote

Family-Owned & Operated Since 1970

Why Ottawa Homeowners Choose Us

This Month’s Promotions