General contractors in Alton, NH 03809
6 general contractors, with local market data for this ZIP.
General contractors 6Roofing and exteriors 3Carpentry, drywall and windows 2Excavation and demolition 1HVAC 1Flooring and tile 1Remodeling 1
Area profitability, construction55 / 100Moderate market, crowded field
Typical home value$530,000+1.9% in the past year
New homes permitted, 2025423Belknap County
Homeowners90.9%1,517 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Generations Kitchen & Bath LLCGeneral contractor · 19 Village Cir, Alton(603) 875-0492 · generationskb.com
J P BuildersHome builder · 445 Dudley Rd, Alton(603) 776-9404 · jphomebuildllc.com
Postech Screw Piles Lakes RegionGeneral contractor · 611 Suncook Valley Rd, Alton(603) 608-7636 · us.postechpiles.com
Stockman’s Electrical SolutionsGeneral contractor · 72 Kent Locke Cir, Alton(603) 455-3363 · stockmanselectricalsolutions.jobbersites.com
Water's Edge BuilderConstruction company · 294 Powder Mill Rd, Alton(603) 875-2343 · watersedgebuildernh.com
Winnipesaukee Marine ConstructionHome builder · 42 Clark Rd, Alton(603) 875-7768 · lakewinnicon.com
Construction in ZIP 03809 at a glance
Local building angle: Belknap County permitted 423 new homes in 2025, including 38 apartment units. 25% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.