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

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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

"We had an older Heatmaker combination unit boiler that was 32 years old that needed to be replaced. We started out with several estimates and first decided what could be used in our space constrained garage. We decided on a Navien combination unit and focused a obtained a couple more estimates. Dawson in fact was one of the last estimates we obtained. While Dave from Dawson had the benefit of us being well along the learning curve, he was able to answer all of our questions about the new unit and how best to solve the condensate dilemma. He even was spot on with regards to treating our well water to minimize scale buildup in our new boiler. We knew we had reached that point where we felt we had found the best installer in Dave. Dave verified his condensate solution with the local township inspector and we scheduled the install date in two weeks. Carlos and Pablo showed up on time and dismantled the old unit and piping and did a first rate and well thought out installation job. Carlos had extensive experience installing these Navien units and it really showed. They managed to work in a tight space that PSE&G’s installers would not have with relocating a well tank. After all the plumbing was done, Ricky did the electrical work and adjusted some final dip switch settings before firing up the new boiler. Dave and his crew really are top notch. His front office staff (Wanda and Ondrea) made the PSE&G interest free financing and permitting approval process seemless. We are looking forward to the operation and efficiency of our new high efficiency boiler for years to come. If you are installing a Navien high efficiency combo unit, we highly recommend using Dawson Mechanical!"
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+20

Response time7 hrs
Response rate99%
7 neighbors recently requested a quote
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
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+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."
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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

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

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

Yes. In many cases, switching from an old furnace to a high-efficiency boiler can help you save money over time. You can also save money by switching from an electric boiler to a gas boiler, which costs much less compared to the energy bills an electric boil can create. Boilers are often (but not always) more efficient than furnaces, too. Then there are discounts, rebates, and incentives that can help you save on the initial costs.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

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.