Hart Plumbing, Heating & Air Conditioning

A plumbing emergency doesn't follow a 9-to-5 schedule. That's why Hart Plumbing, Heating and Air-conditioning is available around the clock, every day of the year. Whether you wake up to a flooded basement from a burst pipe at 2 a.m. or discover a sewage backup on a holiday weekend, our team is just one phone call away. We serve homeowners and businesses throughout Portsmouth and the surrounding regions of New Hampshire and Maine.Our emergency plumbers arrive fully equipped to handle any crisis:...

Keeping your home or business warm in the winter and cool in the summer is our specialty. At Hart Plumbing, Heating and Air-conditioning, we provide comprehensive heating, ventilation, and air conditioning services for residential and commercial properties throughout Portsmouth. From routine tune-ups to full system installations, our certified technicians have the training and tools to work on all major brands and fuel types, including natural gas, propane, and oil.Our HVAC services include furn...

Natural gas is an efficient and cost-effective way to heat your home, power appliances, and fuel your boiler. Hart Plumbing, Heating and Air-conditioning specializes in gas piping installation, repair, and replacement for residential and commercial customers in Portsmouth and across New Hampshire and Maine. Our licensed technicians follow the strictest safety codes, from running new gas lines for a kitchen range or fireplace to repiping an entire building for a boiler upgrade.We also offer exper...

Plumbing problems don't keep business hours, so our team is on call around the clock, every day of the year. If a pipe bursts at 2 a.m. or a sewer backs up on a holiday weekend, one phone call gets a licensed, insured plumber on the way. We handle burst pipes, severe leaks, overflowing toilets, failed water heaters, and gas line emergencies. Our trucks carry a full stock of common parts, so most repairs are finished in one visit. Night and weekend calls are billed at the same upfront rates, with...

When water is spreading across a floor or a gas smell reaches the kitchen, you need someone who can act quickly. Hart Plumbing, Heating and Air-conditioning answers emergency calls day or night and works to stop the damage first, then repairs the cause. We diagnose the problem, explain the repair plan in plain terms, and get your system working again. For larger losses, we coordinate with your insurance company so paperwork is less of a burden. Our crews are fully licensed and insured, and they...

Heating and cooling are a big part of our work, and we handle systems for homes and businesses in Portsmouth. Our technicians service all major brands and fuel types, including natural gas, propane, and oil. We install, repair, and maintain furnaces, boilers, and heat pumps, and we clean and fix ductwork. We also offer indoor air quality solutions. Routine maintenance extends equipment life and helps keep energy bills down. If something fails during a cold snap, our 24-hour emergency repair team...

We install, repair, and replace natural gas lines for homes and commercial buildings. Work ranges from running a new line to a kitchen range or fireplace to repiping a whole building for a boiler upgrade. Every job follows strict safety codes, including leak detection, pressure testing, and proper pipe sizing. We also handle permits and inspections, so you don't have to chase them yourself. Gas work is not a do-it-yourself project, and we would be glad to walk you through what your property need...

A boiler that runs unevenly, makes strange noises, or cycles on and off too often needs attention. We service traditional cast-iron boilers as well as newer high-efficiency condensing units. Our technicians track down the cause, whether it is a failing circulator pump or air trapped in the system, and then recommend a repair or replacement that fits your budget. If a new unit makes sense, we can help you choose one that may qualify for energy rebates. We also provide emergency boiler repair when...

When hot water runs cold or the tank leaks, we can help. Our plumbers diagnose the issue, whether it is a faulty heating element, a failed thermostat, sediment buildup, or a leaking tank. We repair units that can be saved and give honest advice when replacement will cost less over time. Repairs are quoted upfront before any work begins, so you know what to expect. We also service water heaters for homes and small businesses in Portsmouth and nearby towns, and we can get you back to hot showers q...

We care for heating and cooling systems in Portsmouth homes, treating each house with the same respect we would give our own. We explain your options clearly, from simple repairs to energy-efficient upgrades, so you can decide what makes sense for your household. Our services include furnace and boiler repair, heat pump installation, ductwork cleaning, and seasonal tune-ups. We also offer winterization for homes that sit empty in cold months and de-winterization in spring to get everything runni...