
Soffit Installation
Plain & vented aluminum soffit from Kaycan & Gentek — Family-owned, 30+ years
Protecting Your Home From the Roofline Down
A-1 Siding & Windows Niagara has been installing aluminum soffit, vented soffit, and fascia for homeowners across the Niagara Region and Hamilton area for over 30 years. Based in Thorold and Stoney Creek, we’re centrally located to serve homeowners throughout St. Catharines, Niagara Falls, Welland, Hamilton, Dundas, and Ancaster.
Soffit does more than finish the look of your home — it plays a critical role in attic ventilation, moisture control, energy efficiency, and keeping pests out. Whether you’re in Welland, Grimsby, Thorold, Stoney Creek, or Hamilton, our soffit and fascia installers make sure every job is done right the first time.

Aluminum Soffit Options
Plain Soffit
A clean, seamless look for your home’s exterior. Crafted from high-quality aluminum for lasting durability. Available in a wide range of colours from Kaycan and Gentek to match or complement your siding and fascia. Smooth finish for a polished, uniform appearance.
Vented Soffit
Features a perforated panel design that allows air to circulate into your attic, reducing heat buildup in summer and preventing moisture damage year-round. The recommended choice for most homes in the Niagara Region and Hamilton area’s climate. Helps prevent mold, mildew, and ice dam formation.
Fascia
Soffit and fascia are typically installed together since they work as a system. We install aluminum fascia to match your soffit and siding, protecting your roofline and giving your home a clean, finished look. Available in colours to coordinate with your full exterior.

Why Choose A-1 Siding & Windows Niagara?
- Over 30 years serving the Niagara Region and Hamilton area
- Based in Stoney Creek — local to both Niagara and Hamilton homeowners
- Family-owned and operated — you deal with the owners directly
- Plain and vented soffit supply and installation
- Products from Kaycan and Gentek
- Proper installation with attention to ventilation requirements
- Every job cleaned up completely before we leave
- Free estimates with no obligation
Frequently Asked Questions
How do I know if my soffit needs replacing?
Common signs include visible holes or cracks, peeling paint, evidence of pests or bird nests, water stains on the underside of the overhang, or poor attic ventilation. If you’re unsure, we’re happy to take a look during a free estimate visit anywhere in the Niagara Region or Hamilton area.
What’s the difference between plain and vented soffit?
Plain soffit is a solid panel with no perforations — it looks clean and is suitable where ventilation is handled elsewhere. Vented soffit has small perforations that allow airflow into the attic. Most homes in Niagara and Hamilton benefit from vented soffit to manage heat and moisture buildup.
How long does soffit installation take?
Most soffit installations on a standard residential home take one to two days. Larger homes or those requiring fascia work at the same time may take longer. We’ll give you a clear timeline before starting any work.
Do you install fascia at the same time?
Yes — soffit and fascia are typically installed together since they work as a system. We install aluminum fascia to match your soffit and siding, giving your roofline a clean, finished look.
What brands of soffit do you carry?
We source aluminum soffit from Kaycan and Gentek — two of Ontario’s most respected manufacturers. Both offer a wide colour palette, excellent durability through Canadian winters, and strong colour retention over time.
Get a Free Soffit Estimate
Serving St. Catharines, Niagara Falls, Welland, Thorold, Grimsby, Fort Erie, Port Colborne, Niagara-on-the-Lake, Stoney Creek, Hamilton, Dundas, Ancaster, and surrounding areas.
