When it comes to replacing a boiler, it’s not as simple as taking one out and putting a new one in. Older homes in Essex County, particularly those located in neighborhoods such as Montclair, Maplewood, Glen Ridge, South Orange, Bloomfield, and Newark, should have their piping, venting, fuel connections, heating load, and controls inspected in addition to the boiler itself. The lowest bid might seem like a good option, but without being aware of the permits and the condensate disposal, start-up testing, and various other criteria, it could be the worst choice available.
The list contains companies that are engaged in promoting their boiler installation or replacement services in Essex County and neighboring North Jersey. All the companies in this list were evaluated based on their local operations, workers’ experience with boiler-related work, responsive assistance in case of emergencies, transparency in estimates, licensing information, and experience of working in older buildings. Homeowners should also check possible energy efficiency assistance programs which may help cut costs on the boiler replacement.
1. Adriatic Aire
When it comes to furnace replacement Essex County, Adriatic Aire is indeed seen as the best option for boiler replacement jobs. Based out of Montclair, the company has been providing services in Essex County since 1973, giving it over 50 years of service experience. The company says that it is familiar with the steam and hot water systems, cast iron radiators, and the heating systems from the Victorian,Tudor and Colonial eras of the region.
Why It’s #1
- Has served Essex County since 1973.
- Has the New Jersey HVACR license (#19HC00022600) and states that other permits for replacement projects are taken care of.
- Has 24/7 service in case of heating problems.
- Provides free estimates and mentions the repair-replace conversation before it sell new equipment.
- Works with top boiler and HVAC brands like Weil-McLain, Utica, Trane, Lennox, and Carrier.
- Has a 5.0 overall rating based on 500+ reviews received on their boiler replacement page.
Adriatic Aire stands out because of its long local history and effective replacement process. The information it has published discusses different steps of the process, including load calculations, removal of the old boiler, installation of the equipment, testing, and cleanup, as well as support for conversion from oil to gas.
This is especially pertinent in the case of an older house in Montclair or South Orange with uneven heating, aging near-boiler piping, or improperly sized radiators.
2. Maverick Ambitions HVAC LLC
Why It’s On The List
Maverick Ambitions HVAC LLC is a business that has its headquarters in Newark and is run by its owner. It is available in counties such as Essex, Union, Hudson, Middlesex, and Bergen. Among the services the enterprise offers are boiler installation, servicing, maintenance, and the ability for customers to access HVAC services whenever they need them. The company has existed in New Jersey since 2012 and has an average rating of 4.9 stars with 83 reviews published on Google.

3. Reiner Group
Why It’s On The List
The Reiner Group brings a regional aspect to the discussion. It has been in business since 1934 and employs approximately 150 people in providing emergency heating service round-the-clock, besides offering complimentary estimates. In addition, it specializes in installation and repair of hot-water and steam boiler systems in older districts of Montclair.
4. Vanguard Service NJ
Why It’s On The List
Vanguard Service NJ is one of the reliable choices that you should look at when you require boiler work performed in Montclair, particularly if you need codes, permits and venting. The company has a special page about their boiler service where information about installation, repair, maintenance and emergency services is presented. The company holds NJ Master Plumber License No. 13344 and HVACR License No. 19HC00609600.
Vanguard is an appropriate solution when it comes to changing an old chimney-vented boiler for a condensing boiler since the company states that such projects involve installation of a PVC venting system and municipal approval must be obtained.
5. Range Climate Services
Why It’s On The List
Range Climate Services offers heating and air conditioning solutions to customers in Newark and Essex County. They provide services around the clock. Besides having no additional charges for night work, they offer free estimates and a wait time of less than two hours. They can work on all types of HVAC units such as boilers, heating systems, heat pumps, and air conditioners.
6. ExpertEase Plumbing Heating & Cooling
Why It’s On The List
ExpertEase Plumbing, Heating, and Cooling specializes in the replacement and installation of boilers in Newark. This company is very transparent with its prices, provides same-day service, offers emergency services, and gives financing options to those who qualify. Experts will tell you about such aspects of boiler installation as capacity, piping, ventilation, and fuel connections. These details should be reflected in the proposal.
Questions To Ask Before Signing A Boiler Replacement Contract
- Did the company do a heat loss measurement and not just match sizes to the old boiler?
- Does the quote have the model number, efficiency rating, labor costs, permits, and disposal?
- Will the old radiators, baseboards, and piping be suitable?
- Does the price include the cost of commissioning the boiler?
- What warranties and annual maintenance are included?
When homeowners replace their boilers, a properly installed replacement can support safe operation, reliable comfort, and correctly sized equipment. The list includes six companies, each with its own advantages, with Adriatic Aire listed first. The company has been providing services in Essex County for fifty years and specializes in boilers. It provides free estimates, holds the applicable licenses, handles permits, and offers 24-hour service.



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