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Mahoney's Building Supply Ctr EXPERT ADVICE THAT OUR CUSTOMERS HAVE COME TO EXPECT Conveniently located just minutes off I-195 (Exit 19 A) at One Industrial Drive, Mattapoisett MA. Located in beautiful Mattapoisett, Massachusetts, we are dedicated to delivering high quality building materials and expert support services to professional contractors and quality minded homeowners in Southern Massachusetts and Cape Cod.

Make yourself at home, look around, and please let us know if there is anything we can do for you. We provide expert, professional advice, and our friendly, experienced estimators can guide you through every aspect of your project, from basic design layouts to advice on structural and engineered building materials.
Services
In 1884, Dennis Mahoney purchased a small sawmill from Art Pritchard. From those humble beginnings in Mattapoisett, Massachusetts grew Mahoney's Building Supply. Over the next century, the employees and customers of Mahoney's Building Supply would weather economic depressions, two world wars, and countless changes in their lives, but would also come to know Mahoney's as a consistently trustworthy supplier of quality products and building materials.Changing with the times, Mahoney's would continue to evolve, at times selling ice and coal as well as building materials and garden supplies.
Orders placed during business hours and paid in full before noon will be ready for pickup same day. A Sales Specialist will contact you with more information once your order has been reviewed. Delivery orders placed and paid in full by noon will be delivered no later than the following day. Delivery charges may apply.
We realize that sometimes our customers want to talk with us face to face and for that reason, we also stock a comprehensive list of over 8,000 different products at our retail facility in Mattapoisett.
Mahoney's Building Supply strives to carry the very best, highest quality products. We know that our customers have choices when it comes to where they buy their lumber and building materials, and that's why we stock only the best. We take pride in keeping our millwork and premium-grade lumber flat, straight, clean, and ready to ship or pick up, and we're confident you'll see the difference.
Reviews (10)
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Brotherman Bill
Jan 17, 2022
This store is just ok, could use some re organization. Giving it 5 stars solely for the little food truck outside the door off to the side. The people who run it deserve the recognition and I can't find them on Google to leave a review so this is where I shall leave it. The food is amazing and always hits the spot, and at a decent price as well. I have spoken.
Suzanne Moot
Oct 18, 2021
Cabinet choices are very good and Mikw C. is terrific. We got everything done quickly and efficiently.
Inda Clouds
Aug 06, 2021
Prices weren't too bad But the service wasn't great, the man loading up my lumber was very angry and rude. If you don't like your job then quit. Very unprofessional. Other than that it was fine.
Ashur S.
Jun 04, 2021
Someone used my credit card NUMBER fraudulently at this establishment. Meaning they didn't have the physical card itself. You might be asking how's it the businesses fault? Any business that types in numbers of a credit card without the actual card present is a RED FLAG! I get it, some businesses have commonly used Credit Cards on file and use them whenever lets say a contractor phones in. Except I'm not a contractor nor do I even live remotely near there. Businesses should really start asking for ID when presented with credit card information.
Boobbee
Jan 25, 2021
Great solid clapboard decking they got what u need. Its hidden so that a good thing 4 is carpenter's that need it.
Howard Currin
Oct 23, 2020
I went to Mahoney's Biulding Supply shopping for white cedar shingles. Jason, at the contractor's counter, was very helpful and took the time to explain the difference between the grades of shingles. Even the yard man outside, took me to the building where they are stored to show me what they look like. And they have plenty. I went to the " box store supplier " and they need to be ordered and no sure when they would arrive. Jason and the yardman made the trip worth it, very polite and most of all they know what they are selling. I found a new place to get my building supplys.
YewKia MaKua Hui
Nov 21, 2019
I started a new project and have no idea how to proceed. I don't even know what kind of nails or screws to use. I went in to Mahoney's because it is in town and because it is not as intimidating as the big box stores. I was greeted by an employee at Mahoney's and he very patiently told me what I need to get, and how to proceed. This kind of service is just wonderful and just what I needed to get started.

I am very grateful and highly recommend new owners to go there. One more thing. Previously, I went to a big store to get four pieces of 1x4x8 to repair an outdoor stairs. Our of the four, one piece turns out to be so bowed and out of shape that I cannot use it. I brought it back to get a refund. I noticed all the lumber I get from Mahoney's has been of great quality.
Michael Bejtlich
Jun 07, 2019
Thank you to Bria, our Kitchen Consultant and all the great staff at Mahoney's for the terrific job providing advice and service to make our kitchen project a success! We couldn't be happier with the way the job came out!
T. K.
Mar 05, 2019
Showed up when place was closed during holidays. Owner happened to be out front. He let me in even though it was closed and told just to come back when I can and pay him later! I was shocked at this old school treatment I thought had been gone for 40 years! What a nice guy to let me in and told me to Take what you need and pay me later as all the lights were off etc. He now has a customer for life! I will always go here first before any box store. Great selection for everything the house would need!
Sippican Carpentry
Nov 23, 2018
Great staff. Prices are a little high BUT. They make up for it with the HIGHEST quality of customer service, and the employees understand the products they are selling. The "Big Box" stores can't compete with that! Not even close!