Contractors / Portsmouth, NH / Site work

Site work contractors in Portsmouth, NH

Real permit activity. Real contractors. Ranked by volume.

131 site work permits were filed in Portsmouth in the last 6 months. These 63 contractors filed them most often. Tap a name for their full permit history.

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  1. 1Unitil13 in last 90 days26
  2. 2Eversource4 in last 90 days12
  3. 3Advanced Excavating & Paving LLC4 in last 90 days5
  4. 3JMC Inc.4 in last 90 days5
  5. 3Chris-Co Construction Services, Inc.1 in last 90 days5
  6. 6MAC Construction and Excavation LLC4 in last 90 days4
  7. 6JG Gagnon & sons excavation3 in last 90 days4
  8. 6Severino Trucking Co., Inc.1 in last 90 days4
  9. 9Ross Engineering LLC1 in last 90 days3
  10. 10Altus Engineering2 in last 90 days2
  11. 10Bourassa Construction2 in last 90 days2
  12. 10CATV Construction Inc2 in last 90 days2
  13. 10J Lapierre Construction2 in last 90 days2
  14. 10Nashoba Paving Co2 in last 90 days2
  15. 10Salem Manufactured Homes2 in last 90 days2
  16. 16Aaron Corbett1 in last 90 days1
  17. 16Chinburg Builders, Inc.1 in last 90 days1
  18. 16David Canada1 in last 90 days1
  19. 16Dean B Jordan Construction,Inc.1 in last 90 days1
  20. 16Dockham Builders1 in last 90 days1
  21. 16F. L. Merrill Construction, Inc.1 in last 90 days1
  22. 16Gordon Design Build1 in last 90 days1
  23. 16Green Penguin Landscaping1 in last 90 days1
  24. 16Hume excavation1 in last 90 days1
  25. 16Lefebvre Renovations1 in last 90 days1
  26. 16Martin Ryan1 in last 90 days1
  27. 16Mirra Co1 in last 90 days1
  28. 16Nadege Colon-Thompson1 in last 90 days1
  29. 16National Water Main Cleaning Company New England1 in last 90 days1
  30. 16Peter Hayden1 in last 90 days1
  31. 16ROBBINS Excavation1 in last 90 days1
  32. 16Renaud Industries LLC1 in last 90 days1
  33. 16Roger Smith1 in last 90 days1
  34. 16Rowell's Services1 in last 90 days1
  35. 16Rowells Services1 in last 90 days1
  36. 16Servpro1 in last 90 days1
  37. 16Abundant Mechanical LLC DBA; Roto-Rooter of NHnone in last 90 days1
  38. 16Caledonian Carpentrynone in last 90 days1
  39. 16Caruso & McGovern Construction Inc.none in last 90 days1
  40. 16Chris Vitiellonone in last 90 days1
  41. 16Columbia Construction Companynone in last 90 days1
  42. 16Depronone in last 90 days1
  43. 16Edward Hayesnone in last 90 days1
  44. 16Evergreennone in last 90 days1
  45. 16Farrell Contracting Services, LLCnone in last 90 days1
  46. 16Fox Construction, LLCnone in last 90 days1
  47. 16Fresh Creek, LLCnone in last 90 days1
  48. 16Hard Tech Construction.none in last 90 days1
  49. 16Inter-city Construction conone in last 90 days1
  50. 16Jhonny Chiamuleranone in last 90 days1

Recent site work permits in Portsmouth

  1. Nov 5, 2026XFMR UPGRADE/INSTALLATION, POLE UPGRADES, UPGRADE SERVICE TO 200A, OVERHEADEversource · Trench · 1 · #EXCA-26-124
  2. Nov 4, 2026New service stub for new build at 332 Hanover St. Working from Parker StUnitil · Trench · 1 · #EXCA-26-123
  3. Nov 4, 20262 new gas service stub onto property for winter utilization at the same address/duplex. Will have concrete panel repaireUnitil · Trench · 1 · #EXCA-26-122
  4. Nov 2, 2026Installing cable TV conduitCATV Construction Inc · Trench · 1 · #EXCA-26-121
  5. Oct 30, 2026Replace Direct buried lines for Fiduim with conduit.Mirra Co · Trench · 1 · #EXCA-26-120
  6. Oct 30, 2026Sewer Service Connection ApplicationDavid Canada · SITE · 0 · #105111
  7. Oct 29, 2026Will be performing excavation work to install a new manhole structureNational Water Main Cleaning Company New England · Trench · 1 · #EXCA-26-119
  8. Oct 27, 2026Add and addition sewer service to property due to it being a multi family homeJG Gagnon & sons excavation · SITE · 1 · #SWR-26-21
  9. Oct 26, 2026Connect to existing stub in 968 State Street drivewayDean B Jordan Construction,Inc. · SITE · 1 · #SWR-26-20
  10. Oct 20, 2026Install and excavate for an additional sewer and water service due to a 2 unit townhome/otherJG Gagnon & sons excavation · Trench · 1 · #EXCA-26-118

How site work compares in Portsmouth

Other trades in Portsmouth

Electricians 495HVAC contractors 353Building contractors 257Plumbers 233Roofing contractors 118Gas fitters 87Window & door contractors 40Deck & porch builders 25Insulation contractors 21

Site work contractors nearby

Newport 273Warwick 226Providence 178Orleans 153Keene 115Middletown 109East Providence 100Lebanon 77

Get quotes from active site work 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.