Contractors / Dover, NH / Insulation

Insulation contractors in Dover, NH

Real permit activity. Real contractors. Ranked by volume.

21 insulation permits were filed in Dover in the last 6 months. These 7 contractors filed them most often. Tap a name for their full permit history.

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  1. 1James Dimopoulos10 in last 90 days12
  2. 2John DePaola2 in last 90 days2
  3. 2Servpro1 in last 90 days2
  4. 2United Home Experts Incnone in last 90 days2
  5. 5MB2 Restore1 in last 90 days1
  6. 5Northeast Air Sealing1 in last 90 days1
  7. 5McCarthy Restorationnone in last 90 days1

Recent insulation permits in Dover

  1. Nov 6, 2026Weatherization, Insulation, Air SealingJames Dimopoulos · Minor Building - Alteration and/or Addition · Fees Due · #BLDM-2026-0657
  2. Oct 30, 2026Repairs after water damage. Insulation, Drywall, Minor trim, PaintMB2 Restore · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0645
  3. Oct 21, 2026Weatherization, Insulation, Air SealingJames Dimopoulos · Minor Building - Alteration and/or Addition · Fees Due · #BLDM-2026-0630
  4. Oct 13, 2026Weatherization, Insulation, Air SealingJames Dimopoulos · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0614
  5. Oct 7, 2026Weatherization, Insulation, Air SealingJames Dimopoulos · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0598
  6. Sep 14, 2026Demo drywall in first floor bathtub and replace with a new shower. Remove existing vanity and toilet and replace with a John DePaola · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0536
  7. Sep 10, 2026Mold mitigation. Removal of affected drywall ceiling and walls, removal of insulation, removal of vinyl flooring and undServpro · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0528
  8. Sep 8, 2026Customer applying for minor building permit SW Demo drywall in first floor bathtub and replace with a new shower. RemoveJohn DePaola · Major Building - Alteration and/or Addition · Void · #BLDG-2026-0123
  9. Sep 3, 2026The walls are being insulated with cellulose and the rim joist will be insulated with spray foam. This is the exterior wNortheast Air Sealing · Minor Building - Alteration and/or Addition · Issued · #BLDM-2026-0509
  10. Aug 13, 2026Clean debris, temporarily perform board- up services. Install new insulated glass and storefront framingMcCarthy Restoration · Minor Building - Alteration and/or Addition · Complete · #BLDM-2026-0446

How insulation compares in Dover

Other trades in Dover

Electricians 377HVAC contractors 288Gas fitters 226Building contractors 194Plumbers 131Window & door contractors 44Roofing contractors 43Deck & porch builders 35Solar installers 20

Insulation contractors nearby

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

Get quotes from active insulation contractors in Dover

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Source: Dover permits. 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.