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Construction Projects | Decosta Construction | Home Construction Plymouth NH

Building and Remodeling

Servicing customers large and small in central New Hampshire.

Decosta Construction LLC
50 Highland Street
Plymouth, NH 03264


Latest News

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New Home Site

This New Home Site is for a custom log home in Madison, NH home of the worlds largest boulder.

Paving and Driveway Repair

We like to work with G.M.I. for all of our asphalt needs, this is a driveway repair at the Boyle Residence, and the Burger King in Plymouth, NH.

Karen's Porch

Karen Potter asked us to build a deck and we did, then she asked us to install her BJs screen and roof system and I said oh no but we did it and it was worth it to see how pleased she was, Thanks for the work Karen.

Roofing and Siding

Our latest challenge was this older Ranch style house in Ashland, we got the electrical service underground, stripped off all the old roofing, made the mud room roof the same elevation as the main house, added vinyl siding which has a more appealing look, added value and will cut maintenance costs for the homeowners, Thank […]

Kitchen and Bath Remodel

“DeCosta builders has saved me over $100 a month in electric bills and kept over 500lbs of CO2 emissions out of the atmosphere every month since I had them remodel my home!”

Hope you have a great holiday! We’ll be in touch in the spring about the driveway.


Heating System and New Buderus Boiler

This job was a real challenge because the client purchased this home that was sitting empty for quite some time, it needed many things however they had no heat or hot water and needed to move in fast, so we immediately put together an Energy Star product that is second to none, and proceeded to […]

Roof and Skylights

Decosta Construction did an excellent job replacing the roof on our A-frame and extension. The job presented many challenges since Dana and his crew had to work with previously existing poor workmanship. Decosta Construction rose to the challenge, presenting us with a few different options and helping us to decide what would work best for […]

Roofing and Repairs

We got a call in July for some repairs that needed to be done before our customer could sell his home, we replaced concrete footings and porch posts, we tried to stop a roof leak that has been there for years and advised the customer to replace the roof and we did, the bank approved […]

Excavation, Clearing, & Stumping Started In Plymouth

We started a new Excavation job in Plymouth this week, our client has Contracted with Decosta Construction to Clear, Stump, Install Driveway, Septic System, Artesian Well, and Concrete Foundation for the new home being built on this nice 7 plus acre lot, the driveway will wind 600′ up to a knoll where our client […]

Room Remodel in Plymouth, NH

DeCosta Construction was awarded the job of finishing a large function room at a residence in Plymouth, NH today. The room, which is a large unfinished space above a 2-stall garage, was left partially finished by the original builder.

We’ve been asked to come in and finish a few walls to enclose a 2nd […]