Plumbing & HVAC in Portsmouth, New Hampshire
The city our shop is moving to.
Licensed and insured in New Hampshire, Massachusetts, and Maine
Portsmouth NH Plumber & Mini Split Installer
Portsmouth is where JP Karos is headed, literally: the shop is relocating from East Hampstead to the Portsmouth area to put the trucks closer to the seacoast's busiest housing stock. That stock is the challenge: antique capes and colonials with radiators and no ducts, condos with electric baseboard, and harbor-side homes where salt air eats a badly placed condenser. Ductless mini splits were built for exactly this mix, and we install them with raised stands and line-hide runs that survive coastal weather.
Losing heat during a January nor'easter counts as an emergency, and somebody picks up whatever hour it happens. For everything else, the estimate engine prices your swap before you ever wait on a callback.
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.
Portsmouth, New Hampshire
FAQ
Do you install mini splits in older Portsmouth homes without ductwork?
Yes, that's the flagship job. Ductless mini splits heat and cool antique homes without tearing walls open for ducts, and we route line-hide so it doesn't scar the facade.
Does salt air affect a heat pump near the water?
It can shorten the life of a carelessly placed unit. Coastal installs get placement away from direct spray, raised stands, and coated hardware, and we tell you when a location needs rethinking.
What rebates apply in Portsmouth?
NHSaves offers $250 per ton up to about $1,250 on qualifying systems, with income-qualified NH HEAR rebates up to $8,000. Rates checked as of July 2026, eligibility confirmed before you sign.
- 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