Windows

Dowling & Sons: Elevating Durham Region Homes Since 1958
When it comes to the safety, comfort, and beauty of your home, settling for anything less than excellence isn't an option. Dowling & Sons Home Improvements, a premier Oshawa-based window and door expert, has built a legacy of trust, precision, and unrivaled craftsmanship spanning over six decades.
Serving homeowners, builders, and businesses throughout the Durham Region—including Ajax, Pickering, Whitby, Oshawa, and Clarington—we are not just installing products; we are transforming living spaces and securing futures.
Award-Winning Expertise You Can Trust
With a 15-time award-winning track record, Dowling & Sons has solidified its reputation as a leader in home improvements. Our 4.8-star reputation across platforms like Google and TrustedPros is a testament to our dedication to quality. When you choose Dowling & Sons, you are partnering with professionals who view every project through the lens of longevity and superior performance.
Security, Style, and Superior Craftsmanship
We understand that your home is your sanctuary. Did you know most break-ins happen when doors are forced open? Our expert team specializes in advanced hardware systems and premium door installations designed to reinforce your home against intruders, providing peace of mind along with unmatched curb appeal.
Our services include:
Custom Window Replacement: Energy-efficient, high-quality vinyl windows designed to brighten your space and reduce energy costs.
Secure & Stylish Door Installations: From stunning front entries to sliding patio doors, we combine aesthetics with maximum security.
Exterior Upgrades: Specialized services, including expert aluminum capping, tailored to protect your home's exterior.
The Dowling & Sons Difference: A Stress-Free Experience
From the initial free, no-obligation quote to the final inspection of our 5.0-star rated installations, our process is designed to be seamless. We don't believe in high-pressure sales; we believe in offering honest, reliable advice that fits your home’s specific needs and budget.
Let’s Build Your Dream Home
Your home deserves a touch of perfection. Experience the difference that nearly 70 years of expertise makes. Whether you are planning a complete exterior renovation or upgrading your windows, the team at Dowling & Sons is ready to deliver excellence.
Explore our gallery of transformed homes and contact us today to start your project!
Dowling & Sons — Quality you see, trust you feel.