SI
Sergio's
Insulation
Services

Every cavity. The right material.

We install all four major insulation types — and we'll tell you honestly which one (or which combination) makes the most sense for your house and your budget.

Spray Foam Insulation

Spray Foam Insulation

Closed-cell & open-cell — the gold standard for air sealing.

  • Highest R-value per inch in the industry (R-6 to R-7 closed-cell)
  • Air seal + insulation in a single application
  • Blocks moisture, prevents mold and ice dams
  • Adds structural rigidity to walls and roof decks

Common use cases

Vaulted atticsRim joistsCrawlspacesBonus rooms over garagesNew construction
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Fiberglass Insulation

Fiberglass Insulation

Reliable batts and blown-in fiberglass for everyday cavities.

  • Cost-effective without sacrificing performance
  • Available in unfaced, kraft-faced and high-density formats
  • Easy to inspect and verify R-value
  • Non-combustible and chemically inert

Common use cases

Stud wallsOpen atticsFloors above unheated spacesSound dampening between rooms
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Cellulose Insulation

Cellulose Insulation

Dense-pack and loose-fill — recycled, eco-friendly, fire-treated.

  • Made from up to 85% recycled paper fiber
  • Borate fire-retardant treatment for code compliance
  • Dense-pack fills every cavity gap completely
  • Excellent acoustic performance

Common use cases

Closed wall retrofitsAttic top-offsOld plaster wallsSoundproofing party walls
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Mineral Wool (Rockwool)

Mineral Wool (Rockwool)

Fire-rated, water-repellent stone fiber for demanding spaces.

  • Non-combustible — holds up at over 1,800°F
  • Hydrophobic: does not absorb water
  • Excellent sound dampening (STC ratings)
  • Dimensional stability — does not sag over time

Common use cases

Mechanical roomsGarage ceilingsExterior continuous insulationAround chimneys and flues
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Retrofit, Removal & Top-Offs

Retrofit, Removal & Top-Offs

Pulling out old, sagging or damaged insulation — and doing it right.

  • Safe removal of vermiculite, rodent-contaminated batts and water-damaged foam
  • HEPA vacuum + bagging — no debris in your living space
  • Top-offs to bring older attics to current R-49 code
  • Honest assessment: we tell you what stays and what goes

Common use cases

Older homesRecently purchased housesPost-water-damage cleanupEnergy audits
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How it works

From phone call to finished envelope.

  1. STEP 1

    Call or request

    Tell us about the space — attic, walls, basement, new build.

  2. STEP 2

    On-site quote

    We measure, inspect, and hand you a written, no-pressure estimate.

  3. STEP 3

    Clean install

    Drop cloths down, crew suited up, foam & batts installed to spec.

  4. STEP 4

    Walkthrough

    You inspect the work. We don’t leave until you’re satisfied.

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.

Call now774-204-5125Request a quote
FAQ

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.