Give your home a new look

Dowling & Sons Home Improvements

Family owned and operated. Serving Durham, ON region since 1958.

Dowling & Sons

A great window, door or patio door begins with experience, knowledge and most of all, passion.

Products/Services

Windows & Doors installation/Sales

Custom Alumnium

We specialize in custom aluminum work including garage doors, windows, enclosures, and much more. We also provide contractors with custom aluminum bent products for their job needs.

Shutters & Store front custom Shutters

We offer a wide variety of shutter styles in vinyl and aluminum options please contact us for further details.

Siliconing Residential & Commercial

We offer siliconing for residential and commercial applications, we are able to color match very closely and use a high quality sealant right for the job.

Custom store front aluminum and shutters

We offer custom storefront aluminum work including custom-built shutters

Dowling & Sons

Installing Windows and Doors in Durham Region

You can lower your heating and cooling costs by about 10% with energy-efficient windows and doors. Dowling & Sons Windows & Doors can retrofit windows to existing frames or install new frames for a snug fit and maximum energy efficiency. We install windows and doors made by manufacturers known for their use of state-of-the-art insulating materials. We have selected these suppliers for the durability of their products – these doors and windows will keep their good looks without the need for annual repainting.

Serving Durham Region, including Kawartha Lakes, Ajax, Clarington (Bowmanville, Courtice, Newcastle, Orono), Oshawa, Pickering, Scugog (Port Perry), Uxbridge, Whitby, Peterborough and Peterborough County.

Add Value and Comfort to Your Home

New windows and doors installed by Dowling & Sons can make your home more comfortable and make it look great, inside and out. Windows and doors also provide a great return on investment, with upwards of 70% of their initial expense being added to the value of your house.

Every Space Count

Why Choose Us

Planning

We are family-run company serving homeowners in locations of Durham Region.

Quality Supplier

We have suppliers with high quality, cost-effective windows and doors represent a lasting value to your family.

Cost Efficient

We provide you with a realistic, no-surprises quote for your home work.

Installation

We are happy to go beyond the installation of doors and windows to help our customers out.

Experience

Our team is passionate about artistry and craftsmanship. Every member has passion and experience

Full Satisfaction

If there is ever a problem with your windows or doors, we’ll work on your behalf to solve it.

Testimonials

What Our Clients Say

Client reviews; what some of our customers have said:

"I contacted Dowling and Sons to provide some upgrades to my existing windows and doors. D.J. Dowling was quick to respond and recommended that I recap several windows that had been done improperly, causing the unsightly gaps and allowing water to get behind the existing cap. While there, DJ also replaced my door insulation strips an realigned the doors and locks. I couldn't be more happy with the completed work, the communication and the fair price. I would definitely recommend Dowling and Sons for your windows and door needs."

Jack S

Newcastle, ON

Complete Windows and Door Replacement First and foremost, my wife and I are exceptionally pleased with the windows that DJ installed for us. Right from day one when DJ came to the house to explain and measure the windows and doors, he was professional, courteous and very knowledgeable about windows. DJ and son came to our house to install the windows and we wouldn't be any happier with the way they installed the windows and doors. They were pleasant, professional, cleaned up after each window and at the end of each day, cleaned up before heading home. I would highly recommend DJ and Son to anyone who wants quality windows and installers for your home

Brian Kim Robinson

Kawartha Lakes, ON

The railings on the front of my house became very unsafe, I had Dowling and Sons do my windows which were amazing, I contacted them for my railings. The job was done very fast and at a very reasonable cost, I highly recommend them for any contracting need!, they are the only company I will ever use again”

John Floyd

Oshawa, ON

“DJ was professional, fairly priced, organized and timely! He has many years of experience in the business and it shows! He did a Fantastic job and we will be having him replace some basement windows this fall also! Friendliest guy you will meet! Support small business and you get the extra customer service that you can’t depend on from a big box store... and DJ did not disappoint! Thanks again:)”

Rom

Oshawa, ON

“Door Replacement Dj replaced an old door on our very old home for us. The door could never open all the way, and was never sealed properly. When he was done installing the new door It was brand new, brought a whole new look to the house as well as a perfect working functional door. Excited to have him back to replace my front doors.”

Jesse

Kawartha Lakes, ON