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Best boiler installation pros near Hampstead, NH

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    Average homeowner rating
  • Verified reviews icon385
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Hampstead - Updated Nov 2026

Avatar for Clear All Cooling and Heating, LLC
Clear All Cooling and Heating, LLC
5.0(
93
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Hampstead, NH and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Quick response

"Brian at Clear All was recommended by a friend and they lived up to the recommendation and beyond. Helped trouble shoot a broken boiler for my in-laws and once he saw it he highly recommended replacing the boiler. I knew this was not an up-sell as the boiler was in very rough shape. While the new boiler was obviously more expensive then the repair, the price quoted for the boiler, burner, install, and removal of the old system was very fair - too good to pass up and risk throwing good money at bad with a repair on a 20+ year old boiler. Contacted them on a Monday, Brian showed up on that Wednesday to assess the situation and the new boiler was installed and running by 5 pm Thursday. He kept me in the loop through the whole process even though it was my in-laws boiler install. He also took the time to evaluate the size of the house and recommended a much smaller boiler - the existing one was way oversized and therefore over-using heating oil."
Response time1 day
Recommended by100%of homeowners
Joe Belanger, Plumbing Services
4.5(
130
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install

Serving Hampstead, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"I needed a faucet installed on a pedestal sink. Joe did a great job! He was on time, worked efficiently, and charged a reasonable price. Highly recommend for your plumbing needs!"
Buderus oil fired forced hot water heating system
Oil fired buderus
Navien 150 high efficiency wall mounted boiler
Water heater
Powervented water heater

+1

Response time7 hrs
Recommended by94%of homeowners
Avatar for Ethical Home Pro, LLC
Ethical Home Pro, LLC
4.9(
38
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Hampstead, NH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Kyle P. did all the water related services. Last year he installed a water softener tank and this year installed a sediment filter and UV tank as well as an arsenic treatment tank. He is always on time, explains work thoroughly, he's neat about his appearance and how he handles the work environment. Kyle is personable and pleasant.Highest recommendation. This company installed the ductless midi's in our home 3 years ago and in every aspect they are fantastic."
Condenser
Condenser
Air grill ceiling
Air grill ceiling
Air grill ceiling

+172

Response time6 hrs
Response rate95%
Recommended by100%of homeowners
Avatar for Daigle Plumbing, Heating & Cooling
Daigle Plumbing, Heating & Cooling
4.1(
23
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install

Serving Hampstead, NH and surrounding areas

Approved

In business since 1981

Free estimates

Warranties offered

"The Daigle plumbing tech arrived on time, worked hard to diagnose the problem. There were a number of unusual issues that he worked through to make the repairs and he returned my boiler to good working order. The first HVAC companyI hired made repeated trips and was not able to correct the problem. Would definitely recommend Daigle Plumbing to others."
Boiler
Boiler Install
Boiler
Combi Unit
Combi Boiler

+2

Response time3 days
23 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for RPM Heating & Cooling LLC
RPM Heating & Cooling LLC
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Hampstead, NH and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

RPM Heating & Cooling LLC Dracut, MA, 01826 (978) 957-2728 RPM Heating & Cooling LLC is a well-known, 5-star, family-run HVAC contractor in the Dracut, MA area. Reach our team today. Heating Contractor, Heating & Cooling, Home Heating Systems, Cooling System, Affordable Heating and Cooling https://rpmheatandcool.com/

Prompt Service!
Additional Photos
Additional Photos
Additional Photos
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NextGen Aire
NextGen Aire
4.8(
10
)
Oil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install - For Business

Serving Hampstead, NH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Matthew responded very quickly to my call and showed up promptly thereafter. He was very professional and worked diligently to get my boiler working again and the heat restored to my home. He was able to diagnose the problem rather quickly and fixed the issue, even going so far as to explain many of the parts he had to replace and made me feel very comfortable that my unit was running efficiently when it was all done. I would highly recommend NexGen Aire and plan to call Matthew again for future issues. Fast, efficient, and affordable."
Furnace Replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time3 hrs
34 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,337
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Hampstead, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"They came when scheduled, did very careful job, attentive to details. The office scheduled the required plumbing and electrical inspections by my town (for new boiler) and that was efficiently handled too. The salesman who made the initial presentation was very informative and measured home carefully before making his recommondation. Very pleased with Heritage."
Grand opening of new location
Team breakfast
Events
Billy working hard
Golf tournament

+29

Response time5 hrs
354 neighbors recently requested a quote
Recommended by90%of homeowners
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Install Boiler FAQs, answered by experts

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

In most cases, repairing a radiator is more affordable than replacing it. A typical repair may cost between $100 and $200, while a replacement can average $1,500, with a range of $250 to $2,500 depending on the unit type. Radiator issues are often simple fixes for a professional, such as a blown fuse, malfunctioning thermostat, or a loose valve, and can take less than an hour. However, if the long-term costs of fixing the radiator are higher than replacement, it's better to get a new model. It is recommended to consult a heating expert to diagnose the problem and determine the best solution for your situation.

If you're often struggling with radiator issues like chilly spots, leaks, or annoying noises, those are common indications that your radiator may need to be replaced. Corrosion, uneven heating, and persistent hissing sounds are common issues as well. When repairs become a regular chore and your home’s energy bills start to rise, a new radiator will bring the comfort and savings you need.

Costs range from $3,000 to $7,500, depending on system size and efficiency.

The Hampstead, NH homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.