Top-rated boiler installation pros.

Get matched with top boiler installation pros in Randolph, NJ

Enter your zip and get matched with up to 5 pros

TRUSTED BY RANDOLPH, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon666
    Verified boiler installation services reviews

Find Boiler installation pros in Randolph

Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
134
)

Serving Randolph, 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time7 hrs
Response rate99%
10 neighbors recently requested a quote
Lamco Plumbing & Heating Contractors
4.5(
259
)

Serving Randolph, 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
13 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
937
)

Serving Randolph, NJ and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"Mo was a very able, responsive and professional technician who installed our furnace in one day and our new boiler two days later. He patiently answered my many questions, walked me through why we needed two new units (instead of repairing our old ones) and worked well and efficiently. It was painful to have to pay that much money at once for a furnace and a boiler, but Mo made it as positive an experience as it could have been. I am grateful to him and his assistant for their work and professionalism."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

Response time11 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Randolph, NJ and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
16 neighbors recently requested a quote
Avatar for AEO Plumbing & Heating, LLC
AEO Plumbing & Heating, LLC
4.8(
18
)

Serving Randolph, NJ and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I used them to install a gas line and hook up a new gas stove. Vince was through and very knowledgeable of what needed to be done. The price was exactly what he quoted, the pipe install was very neat and clean and he connected the stove, tested to make sure everything was working as well as check all the existing gas appliances to make sure they were working after turning the gas back on. I will be using Vince going forward for all of my plumbing needs!"
Response time30 mins
Recommended by100%of homeowners
Avatar for Pipe Works Services, Inc.
Pipe Works Services, Inc.
4.0(
93
)

Serving Randolph, NJ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Zach from PipeWorks came today to install a new kitchen faucet and do an annual clean/diagnostic of the basement boiler. In both cases, he discovered and patiently explained upgrades and replacements, which he performed expertly. He also answered all of my questions with care â including the dumb ones â and explained the charges clearly. Zach didnâ t try to upsell me anything unnecessary â he did what he needed to do and didnâ t do what he didnâ t need to do. Finally, heâ s a very nice and polite guy, which made the event comfortable and trustworthy. Iâ m thrilled with my upgraded faucet, which works perfectly, and glad to have the boiler in tip-top shape for the season. I happily recommend Zach and PipeWorks to be your in-home experts for fixes and recommendations."
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 by74%of homeowners
Avatar for Sydlar Service LLC
Sydlar Service LLC
5.0(
19
)

Serving Randolph, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Received call from Melissa, who was friendly and professional. Plumber George arrived promptly. He was able to quickly diagnose and resolve a frozen pipe on my heater system, preventing a potential rupture that would have been aggravating and expensive! Very friendly and professional service from start to finish."
Bathroom Remodel
Kitchen sink
Bathroom remodel
Plumbing
Boiler/Water Heater

+3

Response time11 hrs
Response rate97%
Recommended by8%of homeowners
Avatar for GFC Contracting
GFC Contracting
5.0(
21
)

Serving Randolph, NJ and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Mike was able to come in and diagnose that the zone switch on my boiler system had stopped working. He was very professional and was able to get the parts and fix the problem the next day."
70 neighbors recently requested a quote
...
Showing 1-10 of 184
Install Boiler questions, answered by experts

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.

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

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.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

The Randolph, NJ homeowners’ guide to boiler installation services

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