Home Additions in Massachusetts and New Hampshire by Lumi Construction
Licensed & Insured in MA & NH

Home Addition Contractor in Massachusetts & New Hampshire

More space for your family, fully designed, permitted, and built by our licensed team. We handle everything from blueprints to final inspection so you never have to set foot in city hall.

5-Star Rated on Google & Thumbtack 100% Permit Approval Rate BBB Accredited Business
Sound Familiar?

Most homeowners come to us after a bad experience, or to avoid one.

"My contractor disappeared after pulling the permit."

Unfinished additions are one of the most common homeowner nightmares in Massachusetts. You invest your savings, your contractor cashes the check, and suddenly no one picks up the phone. We hear this story every week.

"The final cost was 40% higher than the estimate."

Vague estimates with missing line items are how contractors pad costs mid-project. Our estimates are itemized from day one. The number you approve is the number you pay.

"I had no idea the permits would take that long."

Permit timelines vary by town across MA and NH, and an inexperienced contractor can lose months to rejected applications. Our team has navigated building departments in every city we serve.

At Lumi, we built our process around fixing exactly these problems. Here's how we work.

Why Choose Us

What Makes Lumi Different

Not generic promises. Specific reasons backed by real results.

We Manage Every Permit. You Manage Nothing.

From zoning variances to building permits and final inspections, we handle the entire process in every town we serve. Our 100% permit approval rate is preparation, not luck.

One Team From Design to Final Walkthrough.

Our architect, project manager, framers, and carpenters are all Lumi employees. No hand-offs between strangers, no miscommunication. One team, one point of contact, one consistent standard.

Built for New England. Not Just Built.

Freeze-thaw cycles, heavy snow loads, and high humidity demand more than minimum code compliance. We design every addition with MA and NH climate in mind.

The Process

Your Project in 3 Clear Steps

No confusion. No surprises. Just a clear path from first call to finished project.

1

Free On-Site Consultation

We visit your home, assess the space, listen to your vision, and give you an honest assessment of what is possible within your budget. No pressure, no upselling.

2

Design, Permits & Itemized Estimate

Our architect produces the drawings. We file all permits and get them approved. You receive a fully itemized estimate before any work begins.

3

Build, Inspect & Walk Through

Our crew builds to plan and schedule. We manage all inspections. You receive a final walkthrough and one-year craftsmanship warranty.

Our Work

See It in Action

Home Additions project by Lumi Construction See All Projects
Client Reviews

What Our Clients Say

★★★★★ Excellent · Based on 30+ verified reviews on Google & Thumbtack
FAQ

Common Questions

Verified & Trusted

Licensed, Insured & Recognized

Every number below is real. Every certification is active. You can verify all of them.

Active Licenses

  • Home Improvement Contractor HIC 212727
  • Construction Supervisor License CSL CS-12011
  • Lead Safety Certification AL2020011425
  • Life Safety Certification SL181217132
  • Licensed & Insured in Massachusetts & New Hampshire

Memberships & Recognition

  • National Assoc. of Home Builders NAHB Member
  • Home Builders & Remodelers Assoc. HBRA MA
  • Better Business Bureau Accredited
  • Thumbtack Top Pro 2023 · 2024 · 2025
  • Rating on Google & Thumbtack ★ Excellent
BBB Accredited Business
NAHB, National Association of Home Builders
HBRA Home Builders & Remodelers Association Massachusetts
Thumbtack Gold Pro
Google Guaranteed
Thumbtack Top Pro 2023 2024 2025
Get Started

Ready to Start?
Let's Talk.

Tell us about your project and we'll get back to you within one business day. No pressure, no obligation, just an honest conversation.

Here's how it works:

1

You fill out the form (2 minutes).

2

We review your project and reach out within 1 business day.

3

We schedule a free on-site consultation, no obligation.

4

You receive a detailed, itemized estimate.

Prefer to call?

(978) 996-0461

Mon–Sat, 8am–6pm

We respond within 1 business day. No spam, ever.