Contractors / Portsmouth, NH / Insulation

Insulation contractors in Portsmouth, NH

Real permit activity. Real contractors. Ranked by volume.

21 insulation permits were filed in Portsmouth in the last 6 months. These 6 contractors filed them most often. Tap a name for their full permit history.

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  1. 1Revise3 in last 90 days14
  2. 2Servpro of the Seacoast2 in last 90 days2
  3. 2United Home Experts Inc2 in last 90 days2
  4. 4Insurcomm1 in last 90 days1
  5. 4Silas Moylan1 in last 90 days1
  6. 4Alden Buildersnone in last 90 days1

Recent insulation permits in Portsmouth

  1. Nov 2, 2026Install new replacement windows with proper flashing,sealants and insulation where needed.Dispose of old windows.QuantitUnited Home Experts Inc · Residential · 1 · #BLDG-26-830
  2. Nov 2, 2026Remove and replace tub, vanity, toilet, ceiling vent. Remove drywall as needed on interior and exterior walls as needed Silas Moylan · Residential · 1 · #BLDG-26-831
  3. Oct 16, 2026Weatherization, Insulation, Air SealingRevise · Residential · 1 · #BLDG-26-779
  4. Oct 15, 2026Weatherization project by adding Insulation, where able, and to do building wide air sealing and draft stoppingRevise · Residential · 1 · #BLDG-26-774
  5. Oct 13, 2026Install new replacement windows with proper flashing sealants and insulation where needed. Dispose of old windows.United Home Experts Inc · Residential · 1 · #BLDG-26-767
  6. Oct 13, 2026Removal of water damage materials from water heater leak in unit above. This includes removal of sheetrock ceilings, walInsurcomm · Residential · 1 · #BLDG-26-764
  7. Sep 10, 2026Install new replacement windows with proper flashing, sealants and insulation where needed.Dispose of old windows.QuantiUnited Home Experts Inc · Residential · 1 · #B-26-805
  8. Sep 9, 2026Water damage mitigation. Removal of wet drywall ceiling and wall, removal of wet insulation, removal of wet hardwood floServpro of the Seacoast · Residential · 1 · #BLDG-26-674
  9. Sep 8, 2026Water damage mitigation. Removal of affected carpet pad, insulation, and particle board wallsServpro of the Seacoast · Residential · 1 · #BLDG-26-671
  10. Aug 26, 2026Weatherization, Insulation, Air SealingRevise · Residential · 1 · #BLDG-26-636

How insulation compares in Portsmouth

Other trades in Portsmouth

Electricians 495HVAC contractors 353Building contractors 257Plumbers 233Site work contractors 131Roofing contractors 118Gas fitters 87Window & door contractors 40Deck & porch builders 25

Insulation contractors nearby

Boston 582Lowell 214Plymouth 156Falmouth 151Lexington 138Somerville 111Attleboro 98Barnstable 97

Get quotes from active insulation contractors in Portsmouth

Request a quote and we route it to contractors with documented permits here. No ratings invented — you see their permit history first.

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Source: Portsmouth OpenGov. Data updated Nov 13, 2026. A permit shows a job was filed with the town. It doesn’t show whether the work was finished or how it turned out. Rankings are by permit volume.