Boiler Repair Services on Long Island

When your boiler stops working, you lose more than heat, you lose comfort, safety, and peace of mind. At AJ Services Plumbing and Heating, we provide fast, expert boiler repairs on Long Island to get your system running again with minimal disruption. Whether you’re dealing with strange noises, inconsistent heating, or no heat at all, our licensed technicians are ready to help.

With over 20 years of experience and a deep knowledge of both gas and oil boiler systems, our company is trusted by Long Island homeowners and small businesses to diagnose issues quickly and deliver long-lasting solutions.

Boiler Replacement in Basement

Common Boiler Issues We Repair

No Heat or Hot Water: If your radiators are cold or you're not getting hot water, we'll pinpoint the issue—whether it’s a thermostat, pump, or ignition problem—and get things flowing again.
Unusual Noises: Banging, whistling, or gurgling sounds from your boiler could signal limescale buildup, trapped air, or failing components. We’ll investigate and resolve the root cause.
Leaking or Dripping: A leaking boiler is often a sign of internal failure. We’ll identify the source of the leak and make professional repairs to prevent water damage or further system breakdowns.
Low Pressure: Low boiler pressure can affect performance and efficiency. Our team will check for leaks, bleeding radiators, or faulty pressure valves to restore optimal pressure.
Faulty Thermostat: If your thermostat isn’t responding properly, your heating system won’t work efficiently. We’ll calibrate or replace it as needed for consistent temperature control.
Pilot Light Goes Out: We troubleshoot pilot light issues, whether it’s a faulty thermocouple, gas supply problem, or air in the system.

Our Boiler Repair Process

We service and repair all types of boilers, including gas, oil, combi, and high-efficiency systems. Whether you have baseboard heating, radiant heat, or steam, our technicians are trained to diagnose and fix issues quickly. We work with all major boiler brands, including Navien, Weil-McLain, Burnham, Peerless, Bosch, and more.

Step 1 – Diagnosis

We start with a detailed inspection of your boiler and heating system. You’ll get a clear explanation of what’s going wrong—and how we’ll fix it.

Step 2 – Upfront Quote

No hidden fees or vague pricing. We give you an honest, straightforward estimate based on the actual issue.

Step 3 – Professional Repair

Our technicians use industry-grade parts and tools to repair your boiler quickly and cleanly. We work efficiently and treat your home with care.

Step 4 – Post-Repair Testing & Support

Once the repair is complete, we test everything to ensure safe, efficient operation—and we’re available for questions or follow-up.

Why Choose AJ Services for Boiler Repair?

Over 20 Years of Experience: We’ve been keeping Long Island homes warm for two decades with reliable, high-quality heating repairs.
Fast Response Times: No heat? No waiting. We prioritize heating issues during cold months and respond quickly to restore comfort.
Certified and Licensed Technicians: Our team is trained to handle gas and oil boilers of all major makes and models, and we stay up-to-date with local codes and safety standards.
Honest Service, No Upsells: We only recommend what you truly need—nothing more. Expect clear answers and options that fit your home and budget.
photo of Ben the lead Master Plumber in Bellmore

Serving Nassau & Suffolk County

Located in Bellmore, AJ Services offers trusted boiler repair services across from Floral Park to Long Beach to the Hamptons. We’re here to serve you when any boiler problem arises.

Get in Touch Today

Boiler problems tend to show up when you need heat the most. If your system is acting up or has stopped working altogether, don’t delay. Call AJ Services Plumbing & Heating for fast, reliable boiler repair on Long Island, and get your heat back on in no time.

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Service Areas

Amityville
Atlantic Beach
Babylon
Baldwin
Bay Shore
Bayport
Bayville
Bellmore
Bethpage
Blue Point
Bohemia
Brentwood
Brightwaters
Brookville
Cedarhurst
Centerport
Cold Spring Harbor
Commack
Coram
Deer Park
Dix Hills
East Hills
East Islip
East Meadow
East Northport
East Rockaway
Elmont
Farmingdale
Farmingville
Floral Park
Franklin Square
Freeport
Garden City
Garden City Park
Glen Cove
Glen Head
Glen Neck
Great River
Greenlawn
Hauppauge
Hempstead
Hewlett
Hicksville
Holbrook
Holtsville
Huntington
Huntington Station
Inwood
Islandia
Island Park
Islip
Jericho
Kings Park
Lake Grove
Lake Success
Laurel Hollow
Lawrence
Levittown
Lido Beach
Lindenhurst
Lloyd Harbor
Locust Valley
Long Beach
Lynbrook
Malverne
Manhasset
Massapequa
Medford
Melville
Merrick
Mineola
Muttontown
Nesconset
New Hyde Park
Nissequogue
North Babylon
North Bellmore
Oakdale
Oceanside
Old Bethpage
Old Brookville
Old Westbury
Oyster Bay
Patchogue
Plainedge
Plainview
Point Lookout
Port Jefferson
Port Jefferson Station
Port Washington
Ronkonkoma
Roosevelt
Roslyn
Roslyn Heights
Sands Point
Sayville
Sea Cliff
Seaford
Setauket
Smithtown
St. James
Stony Brook
Syosset
Uniondale
Valley Stream
Wantagh
West Babylon
West Westbury
West Hempstead
West Islip
Wheatley Heights
Woodbury
Woodmere