Reliable Plumbing & Heating LI logo
Get a Free Estimate Call (516) 457-5851
Serving Nassau & Suffolk County for 28 Years

Long Island plumbing & heating, done right the first time.

No hot water, a leak, or a boiler acting up? We fix it fast and leave your home spotless. Free estimates, upfront pricing, no surprises.

78 reviews on Thumbtack, Networx, Angi & Google
Reliable Plumbing & Heating branded service van parked outside a Long Island home
28yrs
Years of experience
Plumbing & heating on Long Island
2yrs
Labor guarantee
On water heater installations
$0
Free estimates
Upfront pricing, no hidden fees
70+towns
Towns served
Across Nassau & Suffolk
Our Services

Complete plumbing and heating, under one roof.

From a dripping pipe to a brand-new boiler, one call covers it. Every job starts with a free estimate and ends with a tested system and a clean home.

Water Heaters

Tank, tankless and indirect water heaters, electric, gas or oil, from Bradford White and A.O. Smith.

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Boiler Repair & Installation

Fast diagnostics when the heat quits, and efficient new boilers that keep your home warm all winter.

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Leak Detection & Repair

We find the source fast and fix it before a small drip turns into a damaged ceiling or a high water bill.

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Whole-House Water Purification

Filtration systems installed at your main water line, so every faucet and shower in the house gets cleaner water.

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General Plumbing

Pipe repairs, valves, fixtures and supply lines. The everyday fixes that keep your home running smoothly.

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Burst Pipe or No Heat?

Water where it should not be, no heat, or no hot water. Call now and we will get your home back to normal fast.

Call (516) 457-5851
Leaks, Burst Pipes & Repairs

Stop the leak before it becomes water damage.

Even a small leak can cause expensive damage. We find the source, give you the price before any work begins, and fix it to last.

  • Leak detection & repair
  • Burst pipe repair
  • Shut-off & valve repair
  • Water damage prevention

Spotted a leak? · Call now. The sooner it is fixed, the less it costs.

Plumber repairing a leaking pipe under a sink in a Long Island home
Free estimates Upfront pricing with no hidden fees.
Plumber installing water heater piping and controls in a Long Island basement
No hot water? Call now Most installs are finished in a few hours.
Water Heaters

Endless hot water, installed in a few hours

Electric, gas or oil. We help you pick the right model and install it properly, so you get steady hot water and lower energy bills for years.

  • Tank & tankless water heaters
  • No hot water diagnosis
  • Indirect water heaters
  • Bradford White & A.O. Smith

2-year labor guarantee · If anything is not right, we fix it at no extra cost.

Our Work

Real Long Island jobs, finished properly

Recent water heater, boiler, shower and bathroom work from homes across Nassau and Suffolk County.

Indirect water heater piped to a Burnham boiler with new copper lines in a Long Island basement Heating
John Wood oil-fired water heater with Beckett burner installed in a Long Island basement Water Heater
Two State Select gas water heaters with copper and black iron piping installed on Long Island Water Heater
A.O. Smith gas water heater with expansion tank installed in a Long Island utility closet Water Heater
Oil-fired boiler with expansion tank and circulator piping serviced in a Long Island basement Boiler
Walk-in shower with pebble tile accent and linear drain in a Long Island bathroom Bathroom
Rain shower head, hand shower and pressure-balance valve installed on large-format tile Fixtures
Linear shower drain installed at the base of a pebble tile wall Bathroom
New bathroom vanity sink and faucet installed beside the toilet in a Long Island home Fixtures
Indirect water heater & boiler Indirect water heater piped to a Burnham boiler with new copper lines
Get a Free Estimate Call (516) 457-5851
Boilers, Heating & General PlumbingBoilers & Heating

Stay warm all winter, with heating that just works

A failing boiler can leave your home in the cold. We diagnose it fast, repair it properly, and install an efficient new system when it is time to replace.

Boiler Repair

Fast diagnostics when the heat goes out, and repairs that get your system running efficiently again.

  • No-heat service calls
  • Circulators, valves & controls
  • Leaks around the boiler

Boiler Installation

High-performance boilers sized for your home, installed cleanly and tested before we leave.

  • Boiler replacement
  • Final testing & cleanup
Reliable Plumbing & Heating service van parked on a Long Island street in autumn
About Us

28 years serving Nassau & Suffolk County.

Reliable Plumbing & Heating is a Deer Park plumbing and heating company built on a simple promise: show up when we say we will, do the job right, and leave your home cleaner than we found it.

Upfront pricing, no hidden feesYou get a transparent quote before we start, and we only fix what actually needs fixing.
28 years of experienceNearly three decades serving Nassau and Suffolk. Whatever the problem, we have solved it before.
Spotless when we leaveEvery job ends with final testing and a full cleanup. Your home is left exactly as you want it.
Customer Reviews

What Long Island homeowners say

78 reviews from homeowners across Nassau and Suffolk County.

4.7
Thumbtack · 40 reviews
4.8
Networx · 28 reviews
5.0
Angi · 8 reviews
5.0
Google · 2 reviews
A
Jerry has the plumbing expertise anyone would love to hire . He shows up as expected, in a very timely manner, He works very professionally,, explains the details of his job in a manner that that one can easily understand, very clean & tidy that I did not do any cleaning at all after he completed the job. He is highly skilled in what he was doing which was installing/ replacing my leaking water heater. Above all, he is very kind & respectful with great communication & interpersonal skills.
M P.Angi review
N
Jerry from Reliable Plumbing & Heating is polite, patient, responsive, thorough, honest and takes pride in his work. Not only was the work done to our satisfaction, but Jerry completed the install timely. I also appreciate the next day follow up call making sure everything is functioning properly. I highly recommend him for any plumbing/heating you need to get done around the house.
JannelleNetworx review · Wantagh, NY
T
I am so happy that I chose Reliable. Jerry was amazing. He provided the water heater and the accessories and he took away the old water heater. Just by him providing the product was a huge help and me not having to go to Home Depot or Lowes and the need to pay for delivery and cart away services. The quality of his work speaks to how much he loves what he does. I was happy that I chose Reliable before the job was even finish. Trust me, you will not be disappointed. Will definitely refer! Thanks, Jerry for the excellent job you performed!
Jessica B.Thumbtack review
A
Reliable is awesome, they came right out and they replaced my hot water tank in 6 hours. Gerry really knows what he is doing. The best licensed plumber ever in my 30 years living here. He explained to me, If the hot water unit is not installed a certain way that it could fail in only a couple of years. Always go with a pro that’s what Reliable is .
Mike D.Angi review
N
This was a very good experience,Gerry was meticulous. He kept me informed about the process which I really appreciated.His work is clean, neat and tidy. I recommend this expert professional to anyone who needs a hot water heater installation.
MarianneNetworx review · East Northport, NY
T
We had a leak from our boiler and they responded within seconds and came the following morning. They gave us a very honest quote and gave us various options. The work was completed within an our or two. Excellent service. I would highly recommend this company.
Rhonia F.Thumbtack review
T
Jerry was a pleasure to work with. He is considerate of your surroundings ,and makes you feel comfortable with him being in your home. His prices are very reasonable, and you never feel like you are being taken advantage of.I recommend him highly , and will be using him for any future plumbing issues.
Rob f.Thumbtack review
N
They showed up the time they said they would, explained what they were doing to fix my leak in my shower and cleaned up after they completed the job. Very knowledgeable. Strongly recommend them. I will use them again for any plumbing issues I may encounter in the future.
DoloresNetworx review · Smithtown, NY
T
We had leaky pipes and Jerry replaced the pipes right away. He had to come back since the work was not done but he was punctual and professional. He also helped us unclog bath tub drain the same day. Good plumber is hard to find and we definitely will keep using his service if need be.
Elvina L.Thumbtack review
T
Very happy with the work he did. He came to fix a leak in the shower wall and made an effort not to break into the wall. When he was done he showed me pictures of the work he did and showed me the pipe that had been leaking. He was professional, polite and the price was reasonable. The next time I need a repair I will definitely call him. Would recommend.
Irene L.Thumbtack review
T
I struck gold when I reached out to Gerry for a bathroom leak. He was so incredibly accommodating and did the work the same day. He replaced the drain pipe and installed a new sink/vanity for me. His price was more than fair and the work was perfect!! He cleaned up so well I couldn’t tell any work had been done at all. I highly recommend Reliable Plumbing and Heating. Gerry went above and beyond!!
DOREEN M.Thumbtack review
A
We had a desperate situation- hot water tank sprung a leak and water was everywhere! Jerry was very understanding- got my info and gave me a very reasonable price. Then he was here- on a Sunday- less than an hour after I called, Drained and removed the old tank and installed the new one! The service was excellent and I have hot water.
Kristine H.Angi review
N
Jerry did a great job for us changing the water heater. Jerry is easy to talk to and he thinks from the position of his customers. Not only he got the job done very professionally but also took time to explain to us how to operate the unit and maintain it for a longer lifetime. Highly recommend Jerry to any one who needs a new water heater!
LillyNetworx review · East Setauket, NY
T
Jerry, the proprietor is great. He got back to me right away and since it was an urgent matter with my heat, he was able to come on a Sunday morning after just having reached out to him the night before! He took time to explain to me exactly what needed to be done. Instead of taking a short cut by trying to oversell me, he performed routine maintenance that should have been done years ago, but I never had an honest plumber tell me that, because they were always after the quick fix and the quick buck. Not Jerry - he took his time and was very reasonably priced. He had my heating system working like new in just and hour and a half. No need to look any further. Call Jerry at Reliable!
Maurizio T.Thumbtack review
T
Wow, can not put into words what job Jerry did. He took all the worrisome feelings I had away from me. Very personable and knowledgeable. Thank you so much for saving me from the cold water showers that i was taking.
Cesar C.Thumbtack review
A
Jet was great. He replaced my hot water heater quickly, efficiently, and with total professionalism. The work area was left spotless, the new unit runs great, and the entire experience was completely hassle-free. I highly recommend his services to anyone needing quality plumbing work!
Angi customerAngi review

Reviews collected on Google, Angi, Thumbtack and Networx.

Service Areas

Based in Deer Park. Serving Nassau & Suffolk County.

70+ towns across Long Island and counting. Tap a town to see where it sits and how far it is from our Deer Park shop.

Home base: Deer Park, NYSelect a town to see the distance
Nassau CountySuffolk County
70+ towns across Long Island · tap any town to see it on the map
Don't see your town?We cover the surrounding areas too. Give us a call and we will let you know right away. Call (516) 457-5851
Free Estimate

Tell us what's going on

A new water heater, a boiler that will not fire, a leak or anything else. Send us the details and we will get back to you with a free, no-obligation estimate. For anything urgent, call us directly.

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FAQ

Questions, answered

We are based in Deer Park, NY and serve homes across Nassau County and Suffolk County, including Bayshore, Brentwood, Commack, Dix Hills, Smithtown, Huntington, Massapequa, Merrick, Levittown, Patchogue, Babylon, Melville and the surrounding towns.

We have been serving Nassau and Suffolk County for 28 years. Whatever the problem, there is a good chance we have fixed it many times before.

No. Water heaters are a big part of what we do, but we are a full plumbing and heating company. We also handle boiler repair and installation, leak detection, burst pipes, whole-house water purification systems and general plumbing.

Yes. We install and replace tank, tankless and indirect water heaters, electric, gas and oil-fired, including trusted brands like Bradford White and A.O. Smith, and we help you choose the right one for your home and budget.

Most water heater installations are finished in just a few hours, so your hot water is back the same day.

Yes. Every water heater installation comes with a 2-year labor guarantee. If anything is not right, we come back and fix it at no extra cost.

Yes. We assess the job and recommend the best solution at no cost. You get a transparent, upfront quote with no hidden fees before any work begins.

Always. We test everything to make sure it works perfectly, then leave your home clean and spotless.

Still have a question? Call us or request your free estimate. We reply fast.

Plumbing or heating problem? One call fixes it.

Water heaters, boilers, leaks, burst pipes and water purification, handled by a team that has served Nassau and Suffolk County for 28 years.

(516) 457-5851
Free estimates · Upfront pricing
Get a Free Estimate Call Now (516) 457-5851