General contractors in Dover, NH 03820

26 general contractors, with local market data for this ZIP.

General contractors 26 Roofing and exteriors 8 Electricians 7 Other construction trades 5 HVAC 5 Excavation and demolition 3 Garage doors 3 Fences and decks 3 Carpentry, drywall and windows 3 Concrete and masonry 2 Flooring and tile 2 Painting 2 Remodeling 1

Area profitability, construction63 / 100Moderate market, balanced field

Typical home value$541,000+1.6% in the past year

New homes permitted, 2025450Strafford County

Homeowners52.7%15,021 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

Air SourceGeneral contractor · 38 Crosby Rd, Dover(603) 617-3771 · airsource.info

Chrisom Brick & StoneGeneral contractor · 74 Waterloo Cir, Dover(603) 231-2763 · chrisombrick-stone.com

Clearview Sunroom WindowGeneral contractor · 21 Westwood Cir, Dover(603) 750-7577 · clearviewsunroom.com

Coolidge CoConstruction company · 45 Basils Pl, Dover(603) 749-1760 · coolidgecompany.com

Defiance Concrete ConstructionGeneral contractor · 117 Silver St Suite 2, Dover(603) 812-6267 · defiancenh.com · 1 driver, 4 trucks

Flynn and Sons ContractorsGeneral contractor · 54A Rutland St, Dover(603) 817-5158 · clicks.superpages.com

Gutters by DesignGeneral contractor · Panam Services, 44 Industrial Park, Dover(603) 217-2576 · guttersbydesignnh.com

Heuston HomesConstruction company · 62 Piscataqua Rd, Dover(603) 396-1934 · heustonhomes.com

Ideal Siding DoverGeneral contractor · 12 Briarwood Ln, Dover(603) 605-0030 · idealsiding.com

J. R. Heald Builders, LLCConstruction company · 180 Locust St, Dover(603) 664-5040 · healdbuilders.com

Janvrin Construction and Property ManagementConstruction company · 4 Tanglewood Dr, Dover(603) 312-3011 · janvrinconstruction.webs.com

JMC Inc.Construction company · 44 Portland Ave, Dover(603) 834-0804 · JMCIncNH.com · 2 drivers, 2 trucks

LCS Construction Co LLCGeneral contractor · 206 Silver St, Dover(603) 343-1381 · LCSconstruction.net · 1 driver, 1 truck

Marone Building CompanyConstruction company · 498 6th St, Dover(603) 234-1159 · maronebuildingcompany.com

Monkey Bars of Northern New EnglandHome builder · 30 Harlans Way, Dover(603) 944-5263 · monkeybarstorage.com

New England HomesGeneral contractor · 277 Locust St, Dover(603) 436-8830 · newenglandhomes.net

New Hampshire Hardwood LLCGeneral contractor · 140 Washington St, Dover(603) 793-2453 · nhharwood.com

RTH Mechanical ContractorsGeneral contractor · 17 Production Dr, Dover(603) 772-9779 · rthmechanicalcontractors.com · 4 drivers, 3 trucks

Skovic ConstructionConstruction company · 346 Washington St, Dover(603) 457-7334 · skovicconstruction.com

Sprague Floor CoveringGeneral contractor · 157 Portland Ave, Dover(603) 742-3869 · spraguefloorcovering.com · 1 driver, 1 truck

Super Sweep Chimney ServiceGeneral contractor · 98 Spruce Ln, Dover(603) 742-2003 · supersweepchimneyservices.com · 2 drivers, 2 trucks

Al Capone General ContractorsConstruction company · 12 Ash St, Dover(603) 380-6490

Birchwood Building & DevelopmentHome developer · 104 Washington St, Dover(603) 556-0401

Caratunk Contractors LLCConstruction company · Dover(978) 494-3456 · 2 drivers, 1 truck

Coastal Points Construction LLCConstruction company · Dover(603) 395-6655 · 2 drivers, 2 trucks

Holsapple Builders LLCGeneral contractor · Park St, Dover(603) 953-3577

Construction in ZIP 03820 at a glance

Local building angle: Strafford County permitted 450 new homes in 2025, including 166 apartment units. 20% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.