Replacing windows and doors is one of the most important upgrades you can make to your home. From energy efficiency and sound reduction to installation quality and rebates, homeowners have many questions before moving forward. Below are the most common questions we receive at NTI Windows & Doors, with clear, honest answers based on real-world performance — not sales hype.
Windows & Doors FAQ | Energy, Noise, Rebates & Installation | NTI Windows & Doors
Upgrading your windows and doors improves comfort, lowers energy bills, reduces outside noise, and protects your home from drafts, moisture, and air leaks. It also increases resale value and curb appeal, while making your home easier to heat, cool, and live in year-round.
You may need new windows or doors if you notice drafts, difficulty opening or closing them, condensation between panes, rotting or warping, or higher energy bills.
Replacement time varies based on how many windows and doors you’re replacing, the type, and the size of your home. Usually, it takes one to three days.
While it’s technically possible to do it yourself, unless you’re experienced and equipped, hiring a professional is the best way to ensure proper installation and avoid potential damage.
Most homeowners see meaningful reductions in heating and cooling costs because modern windows and doors dramatically reduce air leakage and heat loss — two of the biggest sources of wasted energy in a home.
For Southern Ontario, energy-efficient windows and doors with a high R-value are ideal. Popular choices include vinyl, fiberglass, and composite materials.
Windows and doors typically last between 15 to 25 years. Lifespan depends on climate, maintenance, and product quality.
Energy-efficient windows are identified by their Energy Star certification, low U-factor (heat loss), low air-leakage rating, and modern glass packages like double or triple-pane with Low-E coatings and argon gas.
Yes, we offer custom sizing and design options to fit your unique needs and preferences.
Noise control isn’t just about thicker glass — it’s about sealing, construction, and the right glazing. That’s why NTI offers STC-rated glass options designed specifically to block outside noise and improve indoor comfort.