ARM Construction & Management builds home additions, ADUs, kitchens, baths, and custom stonework for homeowners across Worcester, Shrewsbury, Holden, and Leominster. Fourth-generation craftsmanship, honest pricing, and work we put our name on.
Home additions, ADUs, kitchens, baths, and custom stonework across Worcester County. Fourth-generation craftsmanship.

Serving Princeton, Holden, Sterling, West Boylston, Boylston, Shrewsbury, Northborough, Westborough, Southborough, Grafton, Leominster, and the surrounding Worcester County communities.
When you hire ARM Construction, you get a contractor who shows up when he said he would, does the work himself, and treats your home like someone still has to live in it.
Andrew Mercurio is a fourth-generation builder. He started in masonry, the way his family did, and built ARM Construction into a full general contracting company that handles additions, remodels, and everything in between. That background is why we self-perform work most remodelers hand off, from the foundation and stonework right through the finish carpentry.
We walk you through what your project actually needs, explain the options in plain language, and give you a price that holds. If something we suggest is not worth the money, we will tell you that. If a project needs more than you were planning on, you will hear that too, before the work starts rather than halfway through.
One company from the first conversation to the final walkthrough. One point of contact. One name on the work.






On-Site Consultation
We come to your home, walk the space, and talk through what you are trying to accomplish. No estimating a project from photos and no assumptions about what is behind the walls.

Free Estimate
You get a clear, itemized estimate with a scope you can actually read. You will know what the work includes, what it costs, and what the timeline looks like before you commit to anything.

We Handle the Details
Design, permits with your town, scheduling, materials, and the build. You are not chasing subs or sitting in front of the building department. We run the project and keep you updated as it moves.



I can't say enough good things! I needed a small finish job done at the last minute, and Andrew made it happen quickly and without any stress. The craftsmanship was perfect and everything looks amazing. I'm extremely happy and would recommend him to anyone!
Shauna G.
Andrew replaced a garden window in my kitchen, and a sliding door. He did a meticulous job, and went above and beyond to accommodate some special requests that I had. His attention to detail and willingness to do whatever it took to make me happy didn't go unnoticed. Will definitely use him each and every time!
Jessica S.
Andrew and his team are detail-oriented. They are skilled and helped me understand the process of renovating my kitchen. Fantastic communication & high quality service! I am so lucky to have them and recommend them to anyone! When they built my deck, it was so fast & efficient! Call Andrew, you won't regret it
Kelly C.
Addition costs depend on square footage, foundation type, how much structural work the existing house needs, and the level of finish you want. A bump-out over an existing slab and a full two-story addition on a new foundation are very different projects. We come out, look at the house, and give you a real number based on your property instead of a guess from a phone call. The estimate is free and there is no obligation.
In most cases, yes. Under the Affordable Homes Act, which took effect on February 2, 2025, Massachusetts homeowners in single-family zoning districts can build one accessory dwelling unit by right, with no special permit or public hearing. The unit can be up to 900 square feet or half the gross floor area of the main house, whichever is smaller. Attached additions, detached cottages, garage conversions, basement units, and attic conversions all qualify. Local setback, height, and building code requirements still apply, and Boston operates under its own ordinance.
We handle it. ARM Construction takes a project from the first conversation through design, permitting with your town, construction, and final inspection. You are not managing a designer, a mason, a framer, and a finish carpenter separately, and you are not the one sitting in front of the building department. That is what one stop shop actually means here.
Yes. ARM Construction & Management Inc holds Massachusetts Home Improvement Contractor Registration #153199, and Andrew Mercurio has held Massachusetts Construction Supervisor License #CS-093044 since 2011. Both are active and can be verified through the Commonwealth's public license lookup. The Construction Supervisor License is what legally qualifies a contractor for structural work, which is why we can take on additions and ADUs that many remodeling companies cannot.

ARM Construction & Management Inc
131 Houghton Road
Princeton, MA 01541
(774) 249-0221
Licensed and insured in Massachusetts. MA CSL #CS-093044 | MA HIC Reg. #153199
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