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Modern interior windows
Canada's #1 Window & Door Specialists

Built to let
the light in.

Premium windows and doors engineered for Canadian climates — delivering beauty, security, and energy efficiency to homes and businesses nationwide.

25+
Years Experience
2k+
Happy Clients
98%
Satisfaction Rate
Trusted by
Modern home windows Window detail
25+
Years of
Excellence
About NovaSeal

Crafting light, comfort & security for Canadian homes

We design and install premium windows and doors built for Canada's diverse climate — from coastal British Columbia to the Atlantic provinces. Every product is precision-engineered for thermal performance, sound insulation, and lasting beauty.

  • Energy Star certified products across all lines
  • Custom sizing for any architectural style
  • 10-year installation warranty on all projects
  • Free in-home consultation & measurements
500+
Projects Delivered
15+
Product Lines
50+
Expert Installers
98%
Client Satisfaction
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Our Services

Professional installation services for every property

Custom Windows

Made-to-order windows in casement, double-hung, bay, bow, and picture styles for any home design.

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Entry Doors

Solid wood, fiberglass, and steel entry doors with decorative glass inserts and advanced locking systems.

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Patio & Sliding Doors

Smooth-glide patio doors with triple-seal weatherstripping and multi-lock security handles.

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Energy Efficient Glass

Triple-glazed, argon-filled, Low-E glass solutions that dramatically cut heating and cooling costs.

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Storefront Glazing

Full-height commercial storefront systems with aluminium framing, tempered glass, and ADA-compliant hardware.

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Glass Partitions

Frameless and semi-frameless glass partitions for offices, boardrooms, and open-plan workspaces.

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Curtain Wall Systems

Engineered curtain wall facades for mid-rise and high-rise commercial buildings across Canada.

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Automatic Doors

Sensor-operated sliding, swing, and folding automatic door systems for high-traffic commercial spaces.

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Smart Security Doors

Biometric, keypad, and app-controlled smart door systems with reinforced steel frames and multi-point locks.

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Fire-Rated Systems

UL-listed fire-rated windows and doors for industrial, institutional, and high-risk building applications.

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Acoustic Windows

Laminated acoustic glass windows that reduce outside noise by up to 45dB — ideal for urban properties.

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Solar Control Glass

Advanced solar-reflective glazing that manages heat gain while maintaining natural light and clear views.

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How It Works

From consultation to completion

01
Free Consultation

We visit your property, take measurements, and discuss your goals and budget.

02
Custom Design

Our team designs a tailored solution with material, colour, and hardware options.

03
Precision Manufacturing

Products are fabricated to exact specifications in our certified facility.

04
Expert Installation

Certified installers complete the job on schedule, clean, and hassle-free.

05
Aftercare & Warranty

10-year warranty coverage and ongoing support for complete peace of mind.

Beautiful window installation
10yr
Installation Warranty
Why Choose Us

More than just windows — we deliver peace of mind

With over 25 years serving Canadian homeowners and businesses, NovaSeal brings unmatched expertise, premium materials, and certified installation to every project.

Industry Certified

CSA, ENERGY STAR & NAFS certified products and installers.

Eco-Friendly Options

Sustainably sourced materials and energy-efficient glass.

On-Time Delivery

We commit to schedules and stick to them — every time.

24/7 Support

Our team is reachable for post-installation care and queries.

Portfolio

Recent completed projects

View All
Project
Residential
Modern Entry Renovation
Project
Commercial
Office Glass Facade
Project
Residential
Bay Window Suite
Project
Commercial
Retail Storefront
Project
Specialty
Acoustic Suite
Client Reviews

Trusted by thousands across Canada

"NovaSeal completely transformed our home. The triple-glazed windows cut our heating bill by almost a third — and they look stunning. The team was professional from start to finish."

Sarah M.
Sarah Mitchell
Homeowner · Toronto, ON

"We hired NovaSeal for our entire office building's glazing upgrade. On time, on budget, and the quality of the aluminium curtain wall system is exceptional. Highly recommend."

David O.
David Okafor
Facilities Director · Ottawa, ON

"The acoustic windows they installed in our condo make a world of difference. Street noise is almost completely gone. Installation was clean, fast, and perfectly finished."

Angela T.
Angela Tremblay
Condo Owner · Montreal, QC
Window installation
FAQ

Frequently asked questions

Most residential window replacements are completed in a single day. A full home of 10–15 windows typically takes 1–2 days depending on the complexity of the frames and accessibility.
Yes — all of our residential windows and doors are Energy Star certified and meet or exceed Canada's National Energy Code requirements. We also offer triple-glazed options for maximum thermal performance in cold climates.
We provide a 10-year labour warranty on all installations and pass through the manufacturer's product warranty — typically 20–25 years on frames and sealed glass units.
Absolutely. We manufacture custom sizes for any opening and offer a wide range of frame colours, wood-grain foils, hardware finishes, and glass types including frosted, tinted, and decorative options.
Yes — we handle projects of all sizes from single-unit renovations to full commercial building envelope replacements including storefront systems, curtain walls, and glass partitions.

Ready to upgrade your windows & doors?

Schedule a free in-home consultation. Canada-wide service — same-week appointments available in most regions.

Send us a message