Windows & Doors

Energy-efficient window and door replacement and installation for GTA homes.

Windows and doors are the largest source of heat loss in most GTA homes. We supply and install ENERGY STAR certified windows and doors — casements, sliders, picture windows, patio doors, entry doors, and more — with proper flashing, air sealing, and trim to ensure long-term performance.

Why Choose EZU for Windows & Doors?

Why Choose EZU for Windows & Doors?

  • -ENERGY STAR certified products for the Ontario climate zone
  • -Proper flashing and air sealing — not just product installation
  • -Supply-and-install service with one point of responsibility
  • -Eligible for Canada Greener Homes rebates
  • -Interior and exterior trim matching your home's style

Essential Considerations

Energy Performance Ratings

ER (Energy Rating) and U-factor matter more than marketing claims. We specify windows with ratings appropriate for Ontario's climate zone.

Flashing & Water Management

Most window failures start with improper flashing, not window quality. We flash every opening correctly — sill pan, jambs, and head — before installation.

Air Sealing at Rough Opening

The gap between the window frame and rough opening must be air-sealed with low-expansion foam and tape. We treat this as a non-negotiable step.

Interior & Exterior Trim

We complete casing, sills, and exterior trim to match your home's existing style — the installation looks finished, not patched.

Our Windows & Doors Process

  • Measurement & Product Selection

    We measure all openings, review performance requirements, and help you select products that match your style and energy goals.

  • Order & Lead Time

    We order product with confirmed lead times so installation can be scheduled with confidence.

  • Installation & Flashing

    We remove existing units, flash the opening, install the new window or door, and air-seal the perimeter.

  • Trim & Finishing

    We install interior and exterior trim, check operation, and clean up the work area.

Our Recent Windows & Doors Projects

New windows installed on GTA home

Whole Home Window Replacement

22-window replacement project with ENERGY STAR triple-pane units — significant reduction in drafts and heating bills.

View Projects
New insulated front door installation

New Front Entry Door

Insulated fibreglass entry door with sidelights and transom — improved security, insulation, and curb appeal.

View Projects
New sliding patio door installation

Patio Door Replacement

8-foot sliding patio door with Low-E glass and thermal break frame replacing a dated unit.

View Projects

Windows & Doors FAQ

What is an ENERGY STAR window?
ENERGY STAR certified windows meet minimum thermal performance standards for their climate zone. In Ontario, look for ENERGY STAR Most Efficient or windows with ER ≥ 34 and U-factor ≤ 1.22.
Can I get rebates for window replacement?
Yes. Canada Greener Homes and Enbridge offer rebates for ENERGY STAR certified window and door replacements. We identify eligible products and help with rebate applications.
How long do window replacements take?
Most window replacement projects complete in 1–3 days depending on the number of units. Lead times for the product are typically 4–8 weeks.
Do you replace just the glass or the full frame?
We typically replace the full window unit (frame and glass) for best performance. Insert replacements are possible where the existing frame is in good condition.

Let's make your dream a reality.

Ready to transform your space? Our expert team is standing by to bring your vision to life with quality craftsmanship and exceptional service.

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or call us at (647) 766-9999
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