For Special Orders on The Cape and Islands

Visit Our New Vineyard Haven Showroom, Store and Warehouse at 30 High Point Lane!


Specialty Builders’ Supply provides One Source for architectural windows, doors, millwork and building supplies to independent contractors throughout Cape Cod, Martha’s Vineyard and the South Shore
Since 2001 our team has been selling quality products to builders looking for the right material at the right price. Our talented inside and outside sales teams handle blueprints, take-offs and estimating so all you have to do is provide us with plans. Our friendly staff is happy to answer any questions you have about our products. We offer same day delivery free of charge and do on site manufacturing and milling. Call us today to find out more!

Celuka Premium Trim Offers
the Hardest Finish In The Market!

Go from acceptable to exceptional with CELUKA by KOMA Building ProductsKOMA Celuka Trim is the hardest, pre-finished building product in the market. German engineered and made in the USA, its matte finish looks, feels and works just like wood, but will not dent, ding,...

SBS is now Your Source for Atlas Roofing on The Cape & Islands

Specialty Builders' Supply is pleased to announce that is now carries Atlas Roofing. Atlas Roofing Corporation is not your typical, high profile shingle manufacturer— instead they strive to be different, unique, innovative, and most importantly, accessible. Atlas...



We have the items you need at prices that won’t break your budget. Learn More



We have a large selection of trims and moldings to fit with your next big project. Learn More



Our friendly staff is happy to answer any questions you have about our products. Learn More

Perfect solution for bringing the outside in! Thanks to @capeassociatesinc for the cool video! Posted @withregram • @capeassociatesinc A super cool window feature in what will be a truly incredible restaurant! Loewen custom bi-folding window
#la_bella_vita_orleans #LoewenWindows #sbscapecod #orleansma #openingsoon

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Huge thanks to the architect Malachi Connolly for the shout-out on this article on @remodelista ! Very proud of his work, and the skilled work of our guys in the wood shop for making this beautiful screen door! Posted @withrepost • @remodelista Remodelista’s Editor in Chief, Julie Carlson ( @remodelistajc ), recently decided to renovate the small guest cottage in the backyard of her home on Cape Cod. Since inheriting the property from her mother in 2004, the small structure had remained untouched and had become almost uninhabitable. She enlisted her friend Malachi Connolly, a New York and Cape Cod-based architect and preservationist, to come up with a plan. “I love the intimacy and efficiency of small spaces,” Malachi says. “It was nice to work with the simple shed shape, which organically provided a sitting room downstairs and a sleeping loft upstairs. This separation of elements lent a kind of purity to the contemplation of how to craft the spaces.” Tell us what you think in the comments! Photography and styling by @justine.hand . For a full tour of the space, visit the link in our profile ⤴️ #sbscapecod #screendoor #customscreendoor #wellfleet #malachiconnolly ...

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Don’t get to see a lot of cool barns like this one! Posted @withrepost • @a3architects Double sliding barn doors in the snow....
#slidingbarndoors #barnsofcapecod #pocketdoors #whitecedar #sbscapecod #loewenwindows

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If you like the looks of steel but don’t want to pay for it, we have the perfect solution! @norwoodwindows slimline doors made of wood, pre finished all 6 sides, with a 15 year warranty.. pretty cool!
#norwoodwindowsanddoors #customwoodwindows#norwoodwindows #aluminumcladwindows #residentialdesign #residentialarchitecture #luxuryhomes #luxurylifestyle

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Materials supplied by our Vineyard team

Posted @withrepost • @patrickahearnarchitect WIP Wednesday | Meanwhile in Chilmark... we’re envisioning the endless summers that will be spent on this Ipe mahogany deck.
Builder: Rosbeck Builders #sbscapecod #loewenwindows #ipedecking #marthasvineyard

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Thank you for the compliment, we aim to please! @chappaquiddickwoodcompany #sbscapecod #whitecedar #custommill #hardworkpaysoffs ...

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Posted @withrepost • @loewenwindows Considering a pivot door, but want to make sure it’s got a good seal? We’ve got options! repost • @bridgeport_worldwide
What happens in the powder room stays in the powder room. Unless, of course, you don't have some sort of door seal under that door. In that case, your dinner guests may feel like they have a front row seat to the concert going on in the WC. •
For 75 years, the Swiss manufacturer, Planet, has made the widest range of automatic drop seal solutions including this, the Planet US, the thinnest drop seal on the planet. Its small profile delivers big rewards. 48db sound attenuation!! stops drafts and unpleasant smells etc... It also can be deployed upwards, too! Think floor to ceiling doors....

#doorhardware #commercialhardware #millwork #bathroomdesign #madeinSwitzerland #swissprecision #doorbottoms #architecture #interiordesign #keepingmakersmaking #loewen #loewenwindows #pivotdoor

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Posted @withrepost • @norwoodwindows Another factory to job site slide show. Massive bay window in the perfect house on Martha’s Vineyard! Supplied by @sbscapecod .
#sbscapecod #sbscapecodmv #norwoodwindowsanddoors #norwoodwindows #shinglestyle #architecture #architecturalhomes #residentialarchitecture #marthasvineyard #chilmark #customwindows #customhomes #luxuryhomes #woodwindows #capecod in

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