5 Things You Need to Know Before Installing New Windows or Doors
- Annelie Fouche
- Feb 2
- 3 min read
Upgrading your home’s windows or doors is one of the most effective ways to improve comfort, energy efficiency, and curb appeal. But before you start comparing styles and finishes for your new windows or doors, it’s important to understand what makes an installation successful, from measurements and product choice to long-term performance.
At Westman Lumber Supply, we help homeowners, builders, and contractors choose products that deliver both beauty and function.
1. Start with the Right Measurements
Accurate measurements are the foundation of any successful window or door installation. When replacing windows, measure from the outside, brickmould to brickmould. This keeps your existing siding intact and ensures the new unit fits seamlessly.
If you’re unsure, we can help. Our team offers on-site measuring services to confirm sizing and avoid costly reorders or installation delays.
Tip: Measure twice — once at the top, middle, and bottom of the opening — as some older frames may have shifted slightly over time.
FAQ: Do I need to remove my old trim to measure correctly?
Not necessarily. Measuring brickmould to brickmould from the exterior usually provides all the information needed for replacements.
2. Energy Efficiency Makes a Noticeable Difference
Not all windows are created equal. Choosing energy-efficient products helps regulate indoor temperatures, reduce drafts, and lower heating and cooling costs.
Brands like Kohltech Windows & Entrance Systems use warm-edge technology and double or triple glazing to minimize condensation and heat transfer, keeping your view clear and your home cozy, even in Manitoba’s coldest months.
Tip: Look for the ENERGY STAR® label and check the U-factor and solar heat gain coefficient (SHGC) to match your home’s specific needs.
FAQ: Can new windows eliminate condensation completely?
No window can prevent condensation 100%, but high-efficiency designs and proper humidity control dramatically reduce it.
3. The Right Installation Matters as Much as the Right Brand of Windows or Doors
Even the best windows can underperform if they aren’t installed properly. Correct sealing, insulation, and flashing protect against air leaks and moisture (two of the biggest causes of energy loss and water damage).
That’s why professional installation matters. Our trusted installers understand local building codes and Manitoba’s climate, ensuring your investment performs as intended.
Tip: Always check that your installer uses low-expansion foam or appropriate sealants. Overfilling can warp frames or prevent smooth operation.
FAQ: Can I install my new windows myself?
DIY installs can work for experienced renovators, but professional installation ensures proper sealing, warranty protection, and long-term performance.
4. Choose Styles That Match Your Space and Needs
Different window and door styles serve different purposes.
Casement windows hinge on the side and open fully for maximum ventilation.
Tilt & Turn windows can tilt inward for airflow or swing open like a door for easy cleaning.
Awning windows open from the bottom, allowing air circulation even when it rains.
Patio and entry doors can be customized with glass, hardware, and finish options for design continuity and energy performance.
Tip: Match window styles to room function. For example, awnings in bathrooms or basements, and casements or tilt & turn styles in living spaces.
FAQ: Can I mix window styles in the same home?
Absolutely. Many homeowners combine styles for both practicality and aesthetics, depending on the room and exposure.
5. Think Long-Term Value, Not Just Cost
While budget is important, quality windows and doors are an investment that pays off in comfort, lower utility bills, and resale value.
Energy-efficient models, proper installation, and durable materials will outperform cheaper alternatives over time.
When you work with Westman Lumber Supply, you get trusted local expertise, professional guidance, and access to Efficiency Manitoba rebates, helping you save more both now and in the future.
Tip: Keep copies of your product details and installation invoices. They’re often required when applying for rebate programs or warranty coverage.
FAQ: Do energy-efficient windows increase my home’s value?
Yes. Upgrading to certified, well-installed windows and doors can improve your home’s energy rating and make it more attractive to future buyers.
Ready to Get Started?
Whether you’re building new, renovating, or replacing outdated windows and doors, our team can help you choose the right products, confirm your measurements, and guide you through installation, including rebate support.
