Boiler Repair in Nashua, NH
Voted Manchester, NH Top Plumbing Company
- High Quality
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- 20+ Years Experience
Nashua grew up around its mills, and you can still see that history in how the city heats its homes. Near downtown, the Millyard, and the Tree Streets, older multi-family houses and Victorians often rely on steam or hot water radiators fed by a single aging boiler, which can mean uneven heat, worn controls, and corroded piping. The neighborhoods north and west of downtown filled in through the mid-1900s with capes, ranches, and colonials on hot water baseboard, where original pumps and valves are wearing thin. South Nashua and the northwest side added most of the city’s newer homes and condos, and the majority of those are heated with forced air furnaces instead of boilers.
From a three-unit house near Main Street to a newer home off Spit Brook Road, LHR Plumbing and Heating has you covered. Our boiler repair team works on every generation of heating equipment in the city and quotes the price upfront, so you can decide without any pressure.
Boiler Repair & Troubleshooting
Between long winters, damp spring thaws along the Nashua and Merrimack Rivers, and heating systems that were running long before many owners bought the house, local boilers have plenty working against them.
- Circulator pumps and zone valves wear out and leave whole floors or units without heat while the boiler keeps running.
- Trapped air and old, poorly pitched piping cause the banging, knocking, and gurgling that wakes people up at night.
- Relief valves, expansion tanks, and fittings start to leak, and pressure readings drift too high or too low.
- Igniters, flame sensors, and pilot assemblies fail, leaving the burner unable to light on the coldest days.
- Worn controls cause short cycling that runs up fuel bills without making the house any warmer.
We track down the real reason behind the problem, repair it properly, and test the full system before we leave.
Boiler Repair Prevention & Replacement
When one boiler heats several apartments, a breakdown in January means more than one family goes without heat. That’s why we recommend a tune-up before every heating season, especially in Nashua’s older multi-family homes. We clean the burner, check pressure and safety controls, bleed the lines, and replace weak parts before they fail. Our membership plans put that visit on the schedule automatically and give owners priority service if a problem pops up mid-winter.
Time for a new boiler? Once you’re calling for repairs every season, the boiler is close to 20 years old, or some rooms never get warm enough, replacement is usually the smarter investment. High-efficiency boilers burn less fuel, and if the upgrade calls for new or extended gas line work, our team handles it as part of the project. Every install meets current code, and financing is available.
Furnace Repair for Newer Homes
Most of the newer homes and condos in South Nashua and on the northwest side heat with forced air furnaces, and our furnace repair team keeps them running through the coldest weeks.
- Igniter and flame sensor repairs get furnaces lighting reliably again.
- Blower motor and capacitor replacements restore strong airflow to every room.
- Control board and venting repairs stop furnaces from locking out or short cycling.
- Heat pumps installed alongside a furnace give condo and townhome owners efficient heating and cooling.
- Thermostat setup, emergency heating repair, and frozen line repair round out our furnace services.
Boiler or furnace, it’s all one trusted number for heating, cooling, and plumbing.
A Recent Boiler Repair in Nashua, NH
Steve owns a two-family house in the Tree Streets, and last winter his downstairs tenant called to say water was dripping next to the boiler. Our technician found that a waterlogged expansion tank had pushed the pressure high enough to open the relief valve. He replaced the tank and the valve, set the system to the right pressure, and checked both heating zones before leaving. Steve said the best part was not getting another call from his tenant for the rest of the season.
Why Choose LHR Plumbing and Heating for Boiler Repair
Nashua homeowners and landlords call us for a few simple reasons.
- You get certified technicians who work on older steam and hot water systems as well as modern boilers.
- You get transparent, upfront pricing before any repair starts.
- You get same-day scheduling and emergency heating service when the heat can’t wait.
- You get warranties and a satisfaction guarantee on our work.
For the boiler and everything else in the house, one dependable team is all you need.
Frequently Asked Questions
It can, as long as the system is balanced and well maintained. Uneven heat between floors usually comes from failing zone valves, air in the lines, or old controls, and we can often fix those without replacing the boiler.
Most newer condos and homes in Nashua use forced air furnaces, while older buildings near downtown tend to have boilers. We repair both, so one call covers whichever system you have.
In most cases, yes. Boiler replacements usually require a permit and inspection through the City of Nashua, and we take care of that paperwork for you.
Yes. Many high-efficiency boilers vent through a side wall, and drifting snow can block the intake or exhaust pipes and trigger a shutdown. Keep those pipes clear after every storm, and call us if the boiler won’t restart.
Yes. Our emergency heating team serves Nashua and works to get a technician to you fast. Call us as soon as your boiler stops working.