Stylish, Energy-Efficient Windows & Doors in Hamilton

Upgrade comfort and enhance curb appeal with certified installations that minimize drafts all year long.

Windows & Doors: Comfort, Security & Curb Appeal

Our Window Wise-certified windows and doors reduce energy loss and outside noise, offering numerous styles for any exterior. A single project manager organizes measurements, orders, and final fitting, ensuring minimal disruption. Enjoy a modern upgrade that keeps you snug during Hamilton’s cold winters and hot summers.

Local Roofers, Hamilton Proud

Great Service, Honest Prices

Great services, honest prices

☆☆☆☆☆ 5/5

25-Year Roofing Warranty

We back our work with a solid industry-leading 25-year roofing workmanship warranty. That blows the 10-year warranties of many competitors out of the water. How do we do it? Find out.

Certified Roofing Experts

When it comes to quality, Gateway Exteriors doesn’t mess around. We’re Home Depot Pro members, and our team is GAF-certified, Certified Green Roofers, and even Google Guaranteed partners!

Comprehensive Insurance

We take roof safety seriously. We’re fully licensed, bonded, and carry multi-million dollar liability insurance. Plus, we’re in good standing with the Workplace Safety and Insurance Board.

Year-Round Services

Dependable service, rain or shine. Our team is ready to help you every day of the year. Give us a call or send us an email—we’re here to provide the support you need, whenever you need it.

Maintenance Programs

Keep your roof and home in prime condition with Gateway’s comprehensive maintenance programs. We take care of everything from roof repairs to attic inspections and exterior checks, making sure your home stays safe and sound.