High-Quality & Energy-Efficient Windows and Doors in Whitby
Window Mart is the team of experts providing supply and installation services of replacement windows and doors in Whitby, ON. We have an extensive selection of vinyl windows, exterior doors, patio doors, door glass inserts and window coverings to complete any home improvement project with flair and finesse. Every window and door are custom manufactured to ensure the perfect fit in your Whitby home. With our expert installation services, your new windows and doors will perform at their full potential.
100% customer satisfaction is Window Mart’s top priority, and we are committed to delivering the best windows in doors throughout Canada. We work exclusively with Canadian manufacturers to ensure we deliver products that are designed to meet the unique needs of our ever-changing Canadian climate.
Get a Free Estimate
Products:
Explore our selection of expertly crafted windows and doors in Whitby, as well as door glass and window coverings. You are sure to find the perfect fit for your project.
WINDOWS
Energy efficient, low-maintenance, durable, affordable, and attractive vinyl windows in Whitby.
ENTRY DOORS
Upgrade your home with our wide selection of stylish and functional stainless steel or fiberglass entry doors.
PATIO DOORS
Improve energy efficiency as well as the overall look of your home with Window Mart’s collection of patio doors.
DOOR GLASS INSERTS
Give your front door an extra level of sophisticated personality with custom door glass inserts.
WINDOW COVERINGS
Achieve the look you want and get the level of privacy you need with the vast selection of window coverings.
Current Offers & Promotions
Finance Your Project
Window Mart offers excellent financing options for window replacement and door installation projects.
Take advantage of our flexible home improvement financing options and get started on your project!
Buy Now — Pay in 2027!
Get started on your project now and you won’t have to make any payments until 2027.
$0 down payment and 0% interest for up to 12 months.
Get up to 25% OFF
Now is the best time to upgrade windows and doors by getting up to 25% off. With payment plans built to fit your budget, you can enjoy a more beautiful and energy-efficient home today.
Why Replacing Windows in Whitby?
If you notice drafts or leaks, it may be time to invest in new windows for your home. Aside from the instant boost in curb appeal, you will also benefit from energy savings, improved security, reduced noise pollution, and less maintenance with replacement windows in Whitby.
Up To
Windows with
Heating accounts for
Low-e coated windows can reflect up to
Argon gas can improve insulation up to
Low-e coated windows can stop up to
Benefits of Vinyl Windows
Vinyl Windows have dominated the window market for its unique blend of style, high-performance and convenience. High-quality and energy-efficient vinyl windows deliver great return of investment through energy saving and by being a low maintenance product.
100% Lead-free uPVC
Window Mart Windows are made from a 100% lead-free uPVC powder compound. Their unique and robust construction provides exceptional resistance to impact, cracking, and discoloration.
Sealed Glass Unit
Window Mart windows feature a completely sealed glass unit with 13/16″ overall thickness. We offer multiple options for glazing and thickness, depending on the model.
Fusion Welded Corners
Fusion welding creates a watertight and airtight window frame. Internal walls are also welded to improve overall strength and structural integrity.
Multiple Air Chambers
Our windows have the highest number of internal air chambers, providing outstanding insulation and sound abatement properties, as well as maximizing thermal & energy efficiency.
Energy Efficient
The unique multi-chamber design gives Window Mart windows the leading edge when it comes to energy efficiency.
Low-Maintenance
Spend less time on up-keep and more time doing the things you love with Window Mart’s low maintenance vinyl windows.
Attractive
Give your home an instant facelift with stylish new vinyl windows available in a wide variety of shapes, styles, and sizes.
Durable
Vinyl windows are exceptionally durable, boasting enhanced resistance to weather, cracking, and impact damage.
Affordable
With a wide selection of price points and financing options, you are sure to find something that fits your style and your budget.
How much is to replace windows in Whitby?
The cost of replacement windows in Whitby is impacted by a variety of factors. The style and size, along with the materials used to construct each window will all play a part in the final price tag. For a general starting point, we have compiled a list of estimated costs, based on window styles:
| Picture & Fixed windows | From $279 |
| Slider windows | From $325 |
| Single Hung windows | From $337 |
| Double Hung windows | From $355 |
| Casement windows | From $358 |
| Hopper windows | From $359 |
| Awning windows | From $379 |
*It is important to note that the cost of window replacement in Whitby is also determined by the inclusion of additional features such as LoE glass or Triple Pane glass options. Additionally, whether you are planning on retrofitting new glass units or investing in a full-frame replacement service will significantly alter the final cost of your home improvement project.
About Window Mart
Window Mart is the leading provider of windows and doors in Whitby, Ontario. We specialize in high-quality window replacement and door installation services. Our installation teams are industry-trained and well experienced in all types of window and door replacement projects. We have worked hard to build a team of friendly and approachable professionals that places our customers at the top of our priority list, no matter what comes our way.
Window Mart has the experience and expertise to take on even the most challenging window or door improvement project with confidence. We offer complementary estimation services to ensure you are comfortable going ahead with your project.
Why Window Mart?
By choosing high-quality replacement windows and doors in Whitby, you and your family can enjoy a safer and more comfortable home, year-round. Finding a reputable company that delivers durable and affordable products and services is essential to ensure your home is fitted with only the best when it comes to windows, doors, and window treatments. We are committed to sourcing industry leading, Canadian made products that are designed to stand up against even the harshest Canadian conditions. Whether you are building from the ground up or simply giving your home a much-needed facelift, Window Mart Whitby will take the time to fine-tune every detail of your window or door installation project.
Complete Services
From window and door supply and replacement all the way to finishing touches, Window Mart has everything you need for your next project.
Energy Efficient
Energy efficient windows and doors not only create a more comfortable indoor environment, but they also save you money on your utility bills.
Professionally Trained Installers
Window Mart ensures that your investment is properly installed so you can fully glean the benefits of new windows and doors for many years to come.
100% Customer Satisfaction
Our team is focussed on achieving 100% customer satisfaction. We strive to provide exceptional products and services to make your home an even a better place to live.
Licensed & Insured
Window Mart is a member of the ACA and ECA, and is fully certified by the CSA. Window Mart holds a comprehensive insurance policy with $5,000,000 liability. Our work is also protected with WCB coverage.
Warranty
With comprehensive warranty packages, you can rest assured knowing that your investment in new windows and doors is protected.
FAQs
Blog
Edmonton Fall Home Show 2026: Visit Window Mart at Booth 921
Edmonton Fall Home Show 2026: Visit Window Mart at Booth 921 The Edmonton Fall Home Show runs October 16 to 18, 2026, at the Edmonton EXPO Centre. Visit Window [...]
Window Mart Wins 2026 ENERGY STAR Most Efficient Award
Window Mart Wins ENERGY STAR® Promoter of the Year - ENERGY STAR Most Efficient Award The Window Mart team is excited to announce that we have received the 2026 [...]
Thanksgiving 2026 Holiday Hours – Window Mart
Thanksgiving 2026 Holiday Hours at Window Mart Thanksgiving is a time to share a meal and say thank you. This year, Canadians celebrate it on Monday, October 12, 2026. [...]
