Firm Foundation Builders.
Builder surveying the structure of a high-end home renovation

From Foundation to Finish

Built on Trust.
Defined by Craftsmanship.

From concept to completion, we bring experience, precision, and personal attention to every project. Our goal is simple: deliver exceptional workmanship and an experience our clients can trust.

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New England · Boston & Surrounding Areas

Who We Are

Craftsmanship that elevates your home.

Firm Foundation Builders Corp. is an exterior remodeling and construction company serving homeowners throughout New England, Boston, and surrounding areas. With five years of experience, we specialize in transforming residential exteriors into refined, functional, and enduring spaces.

Our work is guided by a commitment to quality craftsmanship, attention to detail, reliable service, and lasting results. From the initial vision to the final finish, we work closely with our clients to ensure every project reflects the character of their home and the standards they expect.

"Quality craftsmanship, attention to detail, reliable service, and lasting results."
Explore Our Services
Firm Foundation mark filled with hands-on steel construction work
  • Est. 2020

    5+Years

    Building in Massachusetts

  • Certified

    Licensed& Insured

    MA CSL / HIC registered

  • Portfolio

    120+Projects

    Residential & commercial

  • Reliable

    FixedSchedules

    Delivered on the date given

Our Services

Every trade your project needs, one accountable team.

From complete remodels to the finishing details, each service is delivered with the same standard of craftsmanship, communication, and care.

Your project

Start a Conversation

Tell us what you’re planning and we’ll follow up with clear next steps.

Featured Projects

Recent work across New England.

On Instagram

Fresh from the job site — follow @firmfoundationbuilders

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Beacon Hill KitchenCambridge Primary BathJamaica Plain BrownstoneNewton Rear AdditionConcord Custom HomeBack Bay Parlor RestorationSouth Boston DuplexSeaport Office BuildoutNewbury Street FlagshipNorth End RestaurantKendall Square WorkplaceBrookline Café & Bakery

What Our Clients Say

The measure of a build is who recommends it.

I'm so happy and delighted with how my bathroom turned out. The work is beautiful, exactly as I imagined it. Every detail made a big difference, and now I have a space that's so much prettier, more organized, and more welcoming. I'm very satisfied with the result and grateful for the excellent work by Lucas and his company. It was definitely worth it!

Patrícia

Bathroom Remodel · Lowell, MA

We renovate four to six investment properties a year and have worked with a lot of GCs. Firm Foundation is the only one whose budget at the end matched the budget at the start.

Priya Raman

Investment Property Renovation · Somerville, MA

The design team caught a structural issue our architect missed. That single conversation saved us months. Everything after that felt effortless.

Daniel & Cara Whitfield

Rear Addition · Newton, MA

Our kitchen is the room everyone stands in now. Clean lines, perfect reveals, and not one callback in two years.

Sofia Marchetti

Kitchen Renovation · Back Bay, MA

They built out our 6,000 sq ft office over a holiday shutdown and we opened on the Monday. Communication was constant and never wasted our time.

Jonathan Pierce

Commercial Buildout · Seaport, MA

Professional from the first site visit to the final walkthrough. The site was swept clean every single evening — that told me everything.

Alicia Nkemdirim

Bathroom Remodel · Cambridge, MA

Your project starts here

Have a property in mind?

Let’s discuss your vision, timeline and goals in a free initial consultation.

Start the Conversation

Start a conversation

Ready to bring your vision to life?

Tell us about your property and what you have in mind. We’ll follow up with an honest assessment and clear next steps.

Project inquiry

Tell us what you’re planning.