Roofing, Siding & Windows Thorold | Gerry's Roofing & Siding

Replacing a roof or installing new windows gives Thorold, Ontario, homes better protection and improved curb appeal. Gerry's Roofing & Siding handles the full exterior scope for homeowners across the Niagara region. Founded in 1980, we've completed more than 30,000 projects, including roof repair, siding, window and door replacement, skylights, and gutter replacements.

Exterior Services Available to Thorold Homes

With Gerry’s Roofing & Siding, you can upgrade multiple parts of the exterior of your home without coordinating multiple contractors. Here’s what we offer:

Roof Replacement & Repair

We offer roof replacement in asphalt shingle, metal, and flat or rubber roofing systems. We work with IKO for asphalt shingles, Ontario Metal Products for metal roofing, and Euroshield for flat or rubber applications. We also handle roof repair and can assess existing systems to guide your next steps.

Siding Installation & Replacement

Our siding installation and replacement service covers vinyl, steel, composite, and fibre cement options. We partner with Royal Building Solutions for the vinyl, steel, and composite siding, and James Hardie for fibre cement. Each product offers different durability and appearance profiles suited to your home's needs.

Window & Door Replacement

We handle vinyl window replacement alongside roofing and siding work, making us a genuine one-stop exterior contractor. We install entry doors and patio doors sourced from Del Windows & Doors. When windows and doors are part of a larger exterior refresh, we coordinate the work efficiently.

Gutter Replacement

Gutters, and everything they’re attached to, protect your roof and siding from water damage. Gutters that don’t drain can lead to mold and foundation issues. We install gutters and eavestroughs using Gentek metal gutters and are certified installers of Alu-Rex gutter guard systems, which reduce maintenance and prevent debris buildup. We handle soffit and fascia replacement when needed.

Skylight & Sun Tunnel Installation

We install skylights and sun tunnels through Velux if you're seeking more natural light. Sun tunnels use reflective tubes to channel daylight into interior spaces where traditional skylights aren't practical, integrating cleanly into roofing projects or standing alone as upgrades.

What Thorold Homeowners Can Expect From the Process

Working with us begins with a straightforward conversation. We assess your needs, discuss priorities, and provide a clear scope before work starts, with no pressure or hidden costs.

Once underway, we manage the project through completion to our standards. We work year-round, which helps you tackle exterior work in shoulder seasons before winter arrives.

Every project is backed by our Transferable Lifetime Workmanship Guarantee. Original owners receive lifetime coverage. If you sell, the guarantee transfers to the new owner for up to 20 years, reflecting our confidence in the work.

Forty-Five Years of Completed Projects Behind Every Quote

Since 1980, we've completed more than 30,000 exterior projects across the Hamilton-Niagara corridor, delivering consistent results across varying home types and seasonal conditions.

We're certified with all manufacturers and hold certified installer status with Alu-Rex for gutter guard systems. This certification ties workmanship directly to manufacturer standards, supporting both product warranties and installation quality. We maintain an A+ Better Business Bureau rating and have earned HomeStars Best of Award and ThreeBest Rated designations.

As a family-owned company, we prioritize customer relationships over volume. You can read honest feedback from past clients on our reviews page.

Common Questions About Exterior Work in Thorold

Do you offer payment plans for larger projects?

Yes, payment plans are available if you want to spread project costs over time. Many homeowners choose to finance rather than pay for the project all up front.

What roofing materials work best for homes in the Thorold area?

Thorold's Ontario winters come with a high snow load and frequent freeze-thaw cycles, requiring careful material selection. We carry IKO asphalt shingles, Ontario Metal Products metal roofing, and Euroshield flat and rubber systems, each suited to different home types. We help identify the best option for your roof.

How do I know if my windows or doors need to be replaced?

Drafts around frames, condensation between panes, or difficulty opening and closing signal failed seals or shifted frames affecting performance. Window and door replacement often makes sense when bundled with roofing or siding work.

Do you serve Thorold specifically, or just the broader Niagara region?

Thorold is within our regular service area. We operate from Hamilton and cover roughly a 45-minute radius, including St. Catharines, Welland, and Niagara Falls. See our service areas page for the complete list. You have local access to experienced exterior contractors.

Get a Quote for Your Thorold Home

Gerry's Roofing & Siding serves Thorold, ON, with roof replacement, siding, windows, doors, gutters, and skylights. Start with a quote conversation where we assess your home and provide a clear scope before commitment.