It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
5-Star Google Rating
ENERGY STAR® Certified
75 Years of Experience
Proudly Canadian
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
Offer valid until August 1st, 2025!
Get three layers of thermal insulation to keep your home cooler in the summer, warmer in the winter — and quieter all year round.
Personalize your home with stylish, factory-applied colours that match your vision — without paying a premium.
$250 Instant NTI Rebate on every window and door replaced*
Up to $5,000 in Government Rebates for ENERGY STAR®-certified upgrades*
Up to $40,000 Interest-Free Loan through the Canada Greener Homes Loan*
Additional rebates of $100 per window*
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
It’s on us this summer! Enjoy triple-pane glass and exterior colour upgrades at no extra charge.
We go beyond basic replacements — every window and door is tailored, warrantied, and professionally installed.
Triple-pane efficiency for year-round comfort and energy savings.
Competitive pricing with no middlemen or hidden fees.
Covers products and installation — no fine print.
Tailored to your home using premium Canadian materials.
Installed by trained in-house pros — never subcontracted.
Built tough to handle Ontario’s harshest weather.
Easy to operate and provide excellent ventilation.
Ideal for rainy climates; allows ventilation while keeping out the rain.
Space-saving design with smooth horizontal operation.
Space-saving design with smooth horizontal operation.
Space-saving design with smooth horizontal operation.
Space-saving design with smooth horizontal operation.
Easy to operate and provide excellent ventilation.
Ideal for rainy climates; allows ventilation while keeping out the rain.
Space-saving design with smooth horizontal operation.
Easy to operate and provide excellent ventilation.
Ideal for rainy climates; allows ventilation while keeping out the rain.
Space-saving design with smooth horizontal operation.
NTI Windows is your trusted window and door partner across Southern Ontario, offering expert service and high-performance products to homeowners in:
Oakville • Burlington • Downtown Toronto • Hamilton • Niagara Falls • St. Catharines • Richmond Hill • Forest Hill • Markham • Thornhill • Maple • Vaughan • Woodbridge
Not sure if you’re in our service area? Call us to find out!
Call A RepresentativeOffer available for a limited time. Restrictions apply.
