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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.6k+
    Verified boiler installation services reviews

Find Boiler installation pros in Mountainside

Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
136
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"I had a great experience with this company installing my new boiler. Their pricing was fair compared to other estimates I received. Dave walked me through the entire process and answered all my questions, and his team came in and did a great job with the installation. With so many scammers out there, I truly felt comfortable working with this company and will absolutely use them again in the future."
Additional Photos
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+20

Response time7 hrs
Response rate99%
7 neighbors recently requested a quote
Lamco Plumbing & Heating Contractors
4.5(
259
)
Gas Boiler or Radiator Heating System - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"2 Days from a major freeze and storm my old boiler failed - Tom came within a half hour and gave me a quote for replacement. I gave the ok and 40 minutes later the new boiler and components were deliivered and an hour after that they began the job -finishing the next morning. New boiler installed and finally heat, just ahead of the teen digit weather. I was very impressed with the quality of work, the guys were great. I highly recommend"
Response time1 day
6 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Valairco
Valairco
4.7(
224
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Angie’s list has Valairco listed as #1 in my area for home HVAC and my 30 year old York R-22 central ac has been leaking for a while. I had Valairco give me a quote to replace the air handler, and the outside compressor, condenser unit with a new unit that uses the new R410a Freon. The estimate seemed a bit high but I was surprised that I wasn’t offered any refund for whatever R-22 they reclaimed from my old system. I started entertaining other quotes when I received an e-mail from Valairco. I responded and explained my disappointment for not being offered something for the reclaimed R-22. I got a phone call shortly after that and was told if I could have it installed the following Friday they would reduce the price by $250.00. I agreed to have them install it. The day prior to installation a plumbing supply truck arrives in front of my home. The driver unloads all the parts for the job in the pouring down rain. I thought it was odd not to alert me since some items would not be helped by a good soaking. I put those inside. It turned out that the plumbing supply delivered a day earlier than instructed. The installers arrived on 7:00 am on Friday. They started disassembling the old system. Two more men from Valairco arrived. It was decided that it was easiest to remove the attic ladder to make room to lift the new air handler into place. As soon as it was up the two additional guys left and for the next 9 1/2 hours the two installers worked in the attic and outdoors to finish the installation. Overall I am pleased with the competence of the installers. I am also pleased with how well they cleaned everything up after they were finished. The new raceway looks better and the thermostat has Automatic Changeover and Adaptive Intelligent Recovery which are nice features. They also do the first year preventative maintenance at no additional cost. The price was exactly what they had quoted. No taxes or hidden costs were added. I was not pleased with a few things. Valairco is poor at communicating. I was told that it would be a two day install at time of quote but they completed it in one marathon day. The installers changed the orientation of the air handler to make it easier to service. It isn’t an issue but it would have been nice to be asked. What if I wanted it that way for storage? My attic ladder was reinstalled with 5 bolts when it is drilled for 6. Maybe one was missing before they started or maybe they lost one. Either way they left it with 5 and did not tell me. The installers relocated the hole where the lines exit the attic through the soffit and patched the unused area with a piece of galvanized steel because they didn’t have any white aluminum on their truck. Not only did it look bad but when you screw unlike metals together you start a corrosive process. I’ was not looking forward to seeing rust stains running down the side of my house. The attic routing of the copper and electric lines are hanging in midair and looks sloppy and amateur. Only one clamp holds it to a joist and it only has one screw. The rest of it hangs 6” below the joists for no reason and creates an unnecessary obstacle. Valairco did not know that I was displeased right away. After reading my initial review here, Richard Valenti, Valairco founder, personally calls me. I did not realize that they normally do their follow up a month after completion, in order to give the customer time to use the unit under a number of weather conditions. He sent Kevin back with the installers to make me happy. They fixed the soffit with a new piece of aluminum. They put anew bolt in the attic ladder. They put a strap hanger on the lines. Kevin offered to come back after cooling season to replace the lines if I am still not happy with them. I asked him if he would have done the installation the way his installers did and if he found the installation satisfactory. Kevin did not answer. It was obvious they returned to satisfy me whether my expectations were valid or not. I am pleased that they returned and I can say that customer satisfaction is important to them."
24 Hour Service
Trained Technicians
Quality Products
Additional Photos
Additional Photos

+44

Response time1 day
15 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mountainside, NJ and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"the process was better than I expected. The sale man knew what he was talking about . The installation crew had worked for the company a long time and were also very knowable . When we could not understand a few things they sent out a serviceman just to show us how it works. They also directed us towards financiers and reabate availability."
Additional Photos
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Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Pipe Works Services, Inc.
Pipe Works Services, Inc.
4.0(
94
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Great Experience with Kevin guiding us with the proposal of a Central Air and Furnace replacement. Very professional and answered all questions timely. No hard sell at all. We did have an existing Lennox AC. The install team of Shakil, Ty and Brandon were just as professional. True to their proposal, they came in and installed both systems in one day. Left the area neat and clean."
Lennox AC Replacement
NTI Boiler Upgrade/Replacement and Repipe
Lennox Furnace, pure air and steam humidifier
Repipe for NTI Boiler
Lennox AC Replacement

+22

2 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Meyer & Depew Heating and Cooling
Meyer & Depew Heating and Cooling
5.0(
5
)
Gas Boiler or Radiator Heating System - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1953

Free estimates

Warranties offered

Meyer & Depew heating and cooling has been family-owned and operated since 1953.\nNo shortcuts, no upsells–we give you all the information you need to make the best decision for you and your home.\n\n• Privately owned – we answer to you, not investors\n• 24/7 service, evening and weekend appointments available\n• Over 1,500 5-star Google reviews\n• Licensed and insured, we always do the right thing\n• Expertise in all makes/models of heating and cooling systems*, Mini Splits and generators

Boiler
Boiler
Before
After
AC Unit Replacement

+2

6 neighbors recently requested a quote
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Install Boiler questions, answered by experts

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

Hydronic and standard electric baseboard heaters differ in how they operate, their cost, and their performance. Standard convection heaters use electric coils to heat the air directly, while hydronic heaters warm a contained liquid like water or oil, which then radiates heat into the room.

In terms of cost and efficiency, hydronic heaters usually have a higher upfront price but are more energy-efficient and cheaper to run over time. This is because the heated liquid retains warmth, allowing the heater to continue providing heat for a while after the thermostat turns it off. In contrast, electric heaters provide heat more quickly but are less efficient.

Ultimately, the better choice depends on your priorities. If you need a room to heat up fast and have a lower initial budget, an electric heater might be suitable. If long-term energy savings are more important and you don't mind a slower heat-up time, a hydronic heater is likely the better option.

Installing a boiler requires training, a specific skill set, and extensive experience. Boiler installation can be extremely dangerous, as it involves working with water lines, gas lines, and electricity. For this reason, it’s strongly recommended that you hire a professional to install your boiler. Some states even consider it illegal to work on a boiler without the proper licensing.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

Installation costs range from $4,000 to $12,000, depending on unit size, efficiency rating, and labor.

The Mountainside, NJ homeowners’ guide to boiler installation services

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