Warmer winters. Cooler summers. Lower bills.
Sergio's Insulation seals your home tight with spray foam, fiberglass, cellulose and mineral wool — installed by trained crews that treat your home like their own.
- 500+
- Homes insulated
- 15yrs
- In the trade
- 4.9
- Client rating
The right material for every cavity, every climate.
Closed-cell & open-cell
Spray Foam
Highest R-value per inch. Seals every gap, blocks moisture and air leaks — turning attics, basements and rim joists into a thermal envelope.
Batt & blown-in
Fiberglass
Reliable, cost-effective insulation for walls, attics and floors. Faster installs without sacrificing comfort or efficiency.
Dense-pack & loose-fill
Cellulose
Eco-friendly recycled fiber that fills cavities completely. Excellent sound dampening and fire resistance.
Rockwool & stone fiber
Mineral Wool
Fire-rated, water-repellent and acoustic. Ideal for fire blocks, mechanical rooms and exterior continuous insulation.
Done right. The first time.
We treat every house — from a 600 sq ft cape to a 6,000 sq ft new build — like it's our own. That means honest advice, the right product for the cavity, and a finished job you can't see — but you'll feel for decades.
Trained applicators
Certified spray foam techs with manufacturer-approved equipment.
Clear written quotes
Line-item estimates. No surprises, no upsells.
On schedule
We show up on the day we said, with the crew we promised.
Clean job site
Floors covered, debris bagged, vacuumed before we leave.
Fully insured
Workers comp and liability on every job — your home is protected.
Code-compliant
Installed to MA energy code & ICC fire-block requirements.
From phone call to finished envelope.
STEP 1
Call or request
Tell us about the space — attic, walls, basement, new build.
STEP 2
On-site quote
We measure, inspect, and hand you a written, no-pressure estimate.
STEP 3
Clean install
Drop cloths down, crew suited up, foam & batts installed to spec.
STEP 4
Walkthrough
You inspect the work. We don’t leave until you’re satisfied.
Real jobs. Real houses. Real results.
Comfort you can feel. Reviews you can trust.
“Sergio's crew did our whole attic with closed-cell spray foam. They were neat, on time, and the price matched the estimate exactly. Our heating bill dropped almost 30% the first month.”
Michelle R.
Worcester, MA
“We had three quotes — Sergio was the only one who actually crawled the attic and showed us photos. Honest, no upsell. The work was clean and the team was respectful of our family.”
Daniel K.
Providence, RI
“Bedroom over the garage is finally warm in January. Mineral wool plus a foam flash coat — exactly what they recommended. Very happy.”
Joana M.
Framingham, MA
Let's talk
Free on-site estimate.
Honest pricing in writing.
Drafty room? High heating bill? Building new? Tell us what's going on — we'll come measure, recommend the right material, and email you a line-item quote within 24 hours.
Answers before you call.
Still not sure? Pick up the phone — Sergio answers questions, not just estimates.
It depends on the cavity size, material (open-cell foam, closed-cell foam, fiberglass, cellulose, mineral wool) and access. Most attic jobs in MA fall between $1.50 – $4.50 per square foot installed. We give you a written, line-item estimate for free.
Closed-cell spray foam gives the highest R-value per inch and seals air leaks, ideal for rim joists, basements and tight attic spaces. Fiberglass and cellulose are great cost-effective options for open wall cavities and standard attics. We recommend what fits your budget and house — not the most expensive material.
Yes. Every estimate is free and there is zero pressure. We measure, photograph the cavities, and email you a written quote — usually within 24 hours.
Most residential attics are completed in one day. Whole-house spray foam during new construction usually takes 2–3 days depending on square footage and weather.
Yes — fully licensed in Massachusetts and insured with workers comp and liability on every job. We can email you a certificate before the job starts.
Most of central and southeastern Massachusetts, plus northern Rhode Island. Call us with your ZIP — if it’s nearby, we’ll be there.