Doors, Windows & Skylights

Dartmouth Building Supply has a dedicated outside sales staff focused on providing construction professionals exceptional customer service that helps get projects completed on time and on budget.

All services are provided by established professionals who remain in constant contact with the contractor. Job-site visits by the DBS outside sales staff allow the contractor to focus on the job rather than materials and delivery dates.

Explore Our Window & Door Selection

Door Models & Installs

From entry, storm, French, and patio doors to custom gliders in wood, steel, or fiberglass, DBS offers durable, secure, and stylish options to fit your home and lifestyle. As an authorized dealer for the nation’s top window and door manufacturers, we provide access to unmatched quality, selection, and service at competitive prices backed by decades of trusted industry relationships.

DBS is also proud to be recognized with the Andersen Circle of Excellence Award, a distinction given to select dealers who demonstrate the highest levels of product knowledge and customer service.

Windows & Skylights

Dartmouth Building Supply partners only with manufacturers known for delivering exceptional quality and service. Our knowledgeable sales team stays up to date on the latest styles and product lines from trusted brands like Andersen Windows and Doors.

We also offer a variety of skylight solutions to bring natural light and energy efficiency into your spaces, enhancing both residential and commercial projects. To make product selection easier, our DBS Millwork Showroom provides a one-of-a-kind experience where you can explore and compare windows, doors, and skylights in a full-room, real-life setting tailored to your project’s needs.

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Our Products Are Built To Last High Quality Trusted By Pros

Doors, Windows, & Skylights

Dartmouth Building Supply offers a full selection of doors, windows, and skylights that bring in natural light, improve energy efficiency, and define the look and feel of a space, helping create interiors that are bright, welcoming, and built to last.

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Kitchen & Bath

Dartmouth Building Supply provides everything you need for kitchens and baths, from tiling, piping, and plumbing materials to countertops and hardware, helping you create spaces that are both stylish and built to last.

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Building Materials

Dartmouth Building Supply provides a complete range of building materials including lumber, drywall, decking, and more, giving contractors and homeowners the essentials to build strong, reliable structures and create outdoor and indoor spaces that are both functional and long-lasting.

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Hardware

Dartmouth Building Supply carries a wide selection of hardware and paint, featuring trusted brands like Milwaukee, Bostitch, Makita, and more, equipping builders and homeowners with the tools and finishes they need to complete projects with precision, durability, and a professional touch.

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Jorge Alejos

17:14 20 Mar 25

The seller, Levi, has a very blunt attitude with people of Hispanic origin. I have gone three times and he has acted like this three times. The last time I sent an email requesting prices and since they don't sell one thing on the list, they didn't give me the price for everything else. I sent him another email asking for the price for everything else. He ignored me and I had to go in person. When I arrived, I bought everything I wanted from another seller. When he arrived, I let him know about my new email and that I no longer needed the prices because I had already bought something. My delivery was scheduled for the next day, but it seems they didn't like me doing that. Without notifying me, they changed my delivery to another day. I wasted the whole day waiting and paid the assistant for nothing. I called that day and they insisted it would be in the afternoon, but they lied. Today I'm going to see if they do the same thing again. I think Hispanic dollars are not welcome there. I won't go back to that place.
(I spoke with the vice president. He offered to improve the vendors' behavior and apologized for this unfortunate incident, a possible accumulation of unrelated events that led me to misinterpret what was happening. He's a great person and a gentleman. Thank you for the call.)

Samuca TV

22:45 09 Dec 24

Suzanne Sharkey

22:34 26 Sep 24

Shawn Delgado is my hero time and time again. He is an excellent problem solver at heart. Whenever you're building anything, there's always going to be hiccups. He's calm cool collected every time and always seems to come up with an idea. He makes my life tremendously easier and I'm super grateful to and for him. Thank you Shawn for all of your efforts over the years!

Chip 1279

01:59 16 Nov 22

So….I had a 49 year old classic receiver, that went out elsewhere, the Case went to DBS. I’ve owned it for decades. I watched the pressboard walnut veneered cabinet dissolve over the years. I brought the frame to DBS to replicate and they used Solid American Walnut…….absolute perfection…….need I say more. Those guys are all craftsmen and it would behove you to talk to them if you’re in the market…..Stunning piece!

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