Reliable Roofing Services in Oakville & the GTA

A-ONE ROOFING: Your Local Oakville Experts for Residential & Commercial Roofing. From minor repairs to full replacements, we deliver elite craftsmanship and 24/7 emergency response.

📞 Book your FREE inspection today!

Why Homeowners Trust A-ONE ROOFING:

Free professional roof inspections and honest local advice

Rapid 24/7 emergency response for leaks and storm damage in Oakville & GTA

Transparent, competitive pricing with no hidden fees
Fully insured, licensed, and highly experienced roofing team
Premium quality materials and elite workmanship guaranteed

Our Services Include

Professional installation of high-quality asphalt shingles for residential roof in Ajax

Close-up of newly installed architectural roof shingles for durability

🛠️ Roof Repairs & Leak Fixes

We quickly and effectively fix common roof problems including leaks, cracked or missing shingles, flashing damage, and more — helping extend the life of your roof.

Detailed installation of architectural asphalt shingles

Completed residential roofing project by A-ONE ROOFING services

🔧 Roof Replacement & Re-roofing

Complete removal of old roofing materials and professional installation of brand-new roofing systems using durable, weather-resistant products to ensure long-term protection and value.

Durable roof shingle replacement by professional roofers

Close-up of residential roof repair and maintenance

🚨 Emergency Roof Repairs (24/7)

Got an unexpected leak or storm damage? We offer 24/7 emergency response throughout the Greater Toronto Area to secure your property and prevent further damage.

Installation of gutter guards to prevent leaf clogs

Fixing sagging gutters and eavestrough repair services

🌀 Gutter Services: Replacement, Cleaning & Repairs

We provide complete eavestrough services — clearing clogged gutters, sealing leaks, and replacing broken or aging gutter systems to ensure proper drainage and roof protection.

A professional roofer on a ladder installing shingles on a residential roof. A large roofing service truck is parked below.

Chimney flashing repair and roof sealing service

🔥 Chimney Repairs & Restoration

We repair cracked masonry, deteriorated flashing, and damaged chimney structures to restore both safety and function — keeping your home secure from water penetration and heat loss.

Expert flat roof replacement showing workers installing roof membrane

Completed residential flat roof repairs and waterproofing project

🏠 Flat Roof Repairs, Replacement & Waterproofing

Skilled in flat roofing systems for homes, garages, and extensions. We repair leaks, membrane issues, and provide professional waterproofing solutions to protect your property from water damage.

Modern home with new siding installation for improved curb appeal

Siding repair in progress on a house exterior using a ladder

🧱 Siding Installation & Repairs

Boost curb appeal and improve insulation with our siding services. We install and repair vinyl, wood, and composite siding — replacing cracked, faded, or damaged panels with precision and care.