24/7 Emergency Service · (603) 362-3409
JP Karos Plumbing & HVAC in Dover, New Hampshire

Plumbing & HVAC in Dover, New Hampshire

Mill-city housing, modern comfort.

Licensed and insured in New Hampshire, Massachusetts, and Maine

Dover NH Plumbing, Boilers & Heat Pumps

Dover mixes converted mill buildings, tight downtown multifamily, and newer developments pushing out toward the edges, and each heats differently. The multifamily side is where our tri-state property-manager work shines: one licensed vendor for the whole portfolio, clean invoices, and a master plumber on the license. On the single-family side, Dover's boiler stock is aging into swap territory, and we quote those in plain numbers before anyone rolls a truck.

Landlords: a no-heat call in an occupied Dover unit is a habitability clock. We answer like it, around the clock.

Technician checking pressure on a newly piped boiler in a Dover basement
New boiler piped in copper against the fieldstone foundation wall of an older basement

24/7 Emergency Service · (603) 362-3409

It's urgent

No heat, burst pipe, gas smell after the utility check? Call now. The emergency line answers around the clock.

Dover, New Hampshire

FAQ

Do you handle multifamily and rental properties in Dover?

Yes. Multi-residential is one of our named markets, from single duplexes to small portfolios, with per-property records and invoices your owner file will like.

How much does a boiler swap cost in Dover?

A typical seacoast gas boiler swap runs $8,800 to $23,400 installed, and most straightforward jobs land mid-band. Your figure is confirmed at your site visit.

Can you replace electric baseboard with a heat pump?

Yes, and in NH that's the one case with enhanced NHSaves rates of $2,000 per ton. Pre-verification at NHSaves GetVerified is required before install, and we walk you through it.

  • Licensed NH, MA, ME. Seven license numbers, printed on every estimate.
  • A pipe burst at my apartment and they came out the same day. Public customer review.

One call covers three states. Start with a number.

Plug in what you have. See the range, the rebate, and the monthly line. Then pick a morning that works.

21+
Years in the trade
3
States licensed
7
Licenses held
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