Exterior Renovation Services
Siding, Windows, Doors, Soffit & Eavestrough — Niagara Region & Hamilton Area, 30+ Years
A-1 Siding & Windows Niagara is a family-owned exterior renovation company providing siding installation, window and door replacement, soffit and fascia, and eavestrough and gutter services across the Niagara Region and Hamilton area. For over 30 years we’ve helped homeowners in St. Catharines, Niagara Falls, Welland, Thorold, Grimsby, Stoney Creek, Hamilton, and surrounding communities protect and improve their homes. Below is an overview of everything we offer — click through to any service for full details, or call us directly for a free estimate.
Siding Installation
Vinyl, metal, and fibre cement siding installation from Gentek, Mitten, Kaycan, and James Hardie — three of Ontario’s most trusted manufacturers. We install horizontal lap, board and batten, and specialty profiles for homeowners across the Niagara Region and Hamilton area. Every job includes proper moisture barrier integration, sheathing inspection, and a clean job site when we’re done.
- Vinyl Siding — the most popular, low-maintenance choice
- Metal Siding — steel and aluminum, maximum durability
- Fibre Cement / Composite Siding — premium, wood-look performance
Windows & Doors
We supply and install energy-efficient windows and quality entry doors for homes across Niagara Falls, Hamilton, St. Catharines, and the surrounding region. Our window selection includes casement, double-hung, sliding, and bay styles with Energy Star certified options available. For doors, we carry steel, fibreglass, and wood entry doors along with patio and storm doors. We also install window capping to protect exterior trim from moisture and eliminate repainting.
Soffit & Fascia
Plain and vented aluminum soffit and fascia installation from Kaycan and Gentek. Soffit plays a critical role in attic ventilation and moisture control — vented soffit reduces heat buildup and helps prevent ice dams during Ontario winters. Fascia is installed alongside soffit to protect your roofline and give your home a clean, finished look, available in colours to match your siding.
Eavestrough & Gutters
Seamless aluminum eavestrough — some homeowners call it eavestrough, others say gutters or guttering — cut to fit on-site with no joints along the run. We also install downpipes and Alurex Gutter Guard to reduce cleaning and prevent leaves and debris from clogging your system. Properly installed eavestrough is essential for protecting your foundation and basement from water damage throughout Niagara and Hamilton’s freeze-thaw winters.
Exterior Railings
We also supply and install aluminum exterior railings for porches, decks, and steps — a durable, low-maintenance finishing touch that complements your new siding, windows, or doors. Ask us about railings when you book your free estimate.
Frequently Asked Questions
What areas do you serve?
We serve the entire Niagara Region and Hamilton area, including St. Catharines, Niagara Falls, Welland, Thorold, Grimsby, Stoney Creek, Hamilton, Dundas, Ancaster, and surrounding communities. See our full service area →
Do you offer free estimates?
Yes, every estimate is free with no obligation. We’ll come out, assess your home, and give you a straight answer and written quote.
Which siding material is right for my home?
It depends on your budget and priorities. Vinyl siding is the most affordable and low-maintenance option. Metal siding offers maximum durability. Fibre cement (composite siding) gives you the look of real wood with premium performance. We’re happy to walk through the options during your estimate.
Do you install new construction as well as renovations?
Yes — we work with homeowners on renovation and replacement projects, and with builders on new construction throughout the Hamilton area and Niagara Region.
Do you do the soffit, fascia, and eavestrough together?
Yes — soffit, fascia, and eavestrough are typically installed together as a system, and many homeowners bundle them with a siding project for a complete exterior refresh.
Get a Free Estimate on Any Exterior Service
Serving St. Catharines, Niagara Falls, Welland, Thorold, Grimsby, Fort Erie, Port Colborne, Niagara-on-the-Lake, Stoney Creek, Hamilton, Dundas, Ancaster, and surrounding areas.