

When Is The Best Time To Buy and Install Canadian Windows?
Sep 25, 2025
8 min read
535
Replacing old windows is one of the most impactful upgrades a homeowner can make, as it improves comfort, lowers energy bills, and boosts curb appeal. But timing matters more than most homeowners realize. With our demanding weather, knowing when to buy and install new windows can significantly impact everything from installation quality to overall cost.
As the old joke goes, there are only two seasons in Canada: winter and construction. However, the ideal home renovation season isn’t the same for everyone. While some homeowners plan their projects in spring or summer, others take advantage of lower prices and faster scheduling during winter window installations.
Each season comes with its own benefits and challenges, and understanding them can help homeowners maximise their investment, reduce stress and ensure peace of mind.
So, When to Replace Windows?
The biggest secret here is that there’s no secret at all. For a reliable contractor, the season doesn’t matter. Professional crews install windows year-round, even in the coldest Canadian winters. What really matters is your convenience, your schedule, and your budget. Think about what works best for your household:
- Weather comfort: Do you mind opening up your home on a very hot or very cold day?
- Family schedules: Some homeowners prefer to schedule projects during the school year when kids are out of the house.
- Pets: If you have pets that become nervous around strangers in the house, plan for a time when you can arrange for care or be present to manage them.
From the contractor’s perspective, the installation quality is the same regardless of the season. The real difference lies in how the timing affects your family, your comfort, and you, especially if the replacement project is large and requires several days of on-site work.

Please note that most custom energy-efficient windows are ready for installation approximately 6–8 weeks after the contract is signed, as this timeframe is required for manufacturing, delivery, and proper installation preparations.
One more thing to keep in mind: window prices tend to go up twice a year – in July and January. If you want to get the best price, it’s smart to sign a contract ahead of those increases, even if you plan to have the windows installed a few months later.
How Different Seasons Impact Window Installation Projects
Each season in Canada offers its own advantages and challenges for window replacement. While professional crews can work year-round, understanding what to expect from each season can help homeowners choose the timing that best suits their needs.
Spring (March – May)
Spring marks the start of the busy season for most window companies. The weather is mild, which makes installation smooth and comfortable for homeowners. It’s also a great time to improve energy efficiency before the summer cooling season begins.
- Consider: This is when demand begins to rise, so scheduling may take longer, and prices are rarely discounted. If you want to schedule your window installation during this season, be sure to book it several months in advance to avoid the spring rush.
Summer (June – August)
Summer offers warm, stable weather and long daylight hours. These are ideal conditions for window replacement projects. Installation is quick and disruptions are minimal.
- Consider: It’s the busiest time of the year, so expect longer lead times, limited crew availability, and higher seasonal demand, which may impact pricing.
Fall (September – November)
Fall is a sweet spot between peak demand and the cold months ahead. The weather is still manageable, and replacing old drafty windows before winter can immediately lower heating costs.
- Consider: As days get shorter and the weather becomes more unpredictable, project timelines can stretch slightly.
Winter (December – February)
Winter may seem like the worst time, but it often comes with hidden benefits. Demand drops, so companies offer faster scheduling and sometimes off-season discounts. Experienced installers use proven techniques to minimize heat loss during the process.
- Consider: Cold weather can cause short delays, and not all crews are equally prepared for winter installs. Therefore, choosing an experienced company is crucial. Winter is considered the best time to save on windows and test them out during harsh weather conditions.
Can My Windows be Installed in Winter During The Cold?
Yes, windows can absolutely be installed during the Canadian winter, even in extreme cold. The key is choosing an experienced company with the right tools, materials, and methods to do it properly.
Professional installers also use low-temperature foams and sealants designed to cure properly in cold weather. Active precipitation, such as heavy snow or freezing rain, may cause a short delay; however, off-peak seasons make rescheduling far easier and faster than in summer or spring.
At Ecoline, winter installations are part of the regular schedule. Crews work room by room, replacing one window at a time. This approach keeps your home comfortable – while one window is out, the rest of the house stays sealed. On average, a window takes about 20-30 minutes to install, and most full-home projects are completed within one to two days.
One added benefit of winter installations is the instant results they provide. If your old windows are drafty, you’ll feel the difference the same night after new units are installed – warmer rooms, fewer drafts, and lower heating loss. So while winter may seem like an unusual time for window projects, with an experienced team, it’s often the most rewarding.
How the Right Timing Gets You the Best Window Costs and Deals
Window replacement is a significant investment, and timing can have a substantial impact on the final cost. While discounts can be available year-round, they’re often incorporated into the overall pricing strategy. What matters more is understanding when companies are busiest, and when they’re motivated to offer their best deals.
Most window companies experience a slowdown during December and January, when demand is at its lowest. With fewer projects in the schedule, companies are often more flexible with pricing and more open to offering off-season promotions. This makes winter one of the best times to negotiate a lower price or secure special deals that offer extras like upgraded glass at no additional cost.

In contrast, spring and summer are peak seasons. High demand fills production lines and installation calendars quickly, which means less room for negotiation and fewer available discounts.
Another way to save is by planning early. Even if you want your windows installed in spring, signing your contract in late fall can help you lock in lower prices before annual price increases, which often occur in January and July. Smart timing can easily save hundreds or even thousands of dollars on a full-home replacement project.
Wrapping Up
When it comes to window replacement, and in fact, most other home renovations, going against the demand can go a long way toward saving you money. Of course, the downside is that you may have to have your installation in a colder month.
However, if you consider that installations can be performed effectively year-round and that companies can often accommodate installation dates, there really is no downside to booking in the winter time.
FAQ
Can windows be installed during winter?
Yes. Professional installers work year-round, even in extreme cold. With the right low-temperature sealants and room-by-room installation methods, winter projects are safe, efficient, and often more affordable. Plus, you’ll notice the comfort and energy savings immediately once the new windows are in place.
When are window prices the lowest?
Window prices are typically lowest during the off-season, especially in December and January. Demand slows down, so companies often offer more flexible pricing and seasonal promotions. Signing your contract before annual price increases in January or July can also help you lock in lower rates.
How long does it take to get new windows installed?
Most custom energy-efficient windows take 6-8 weeks to manufacture, ship, and prepare for installation after the contract is signed. The installation typically takes one to two days, depending on the number of windows and the project’s complexity.
What is the busiest time of year for window companies?
Spring and summer are the busiest seasons for window replacement. Warm weather, longer daylight hours, and school breaks create high demand. While this can be convenient for homeowners, it also means longer wait times and fewer discounts compared to the fall or winter seasons.
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