New York

Demar Plumbing Corporation

3.2 of 5

Average of 51 Google reviews

Positive and negative reviews

  • Positive 27 reviews, 53% of all reviews
  • Negative 23 reviews, 45% of all reviews
  • Not counted 1 review, 2% of all reviews

Google reviews of 4 or 5 count as positive. Google reviews of 1 or 2 count as negative. Google reviews of 3 are not counted.

AI summary of their website

About Demar Plumbing Corporation

  • In business: 54 Years (Since 1972)
  • 24/7 emergency service

Demar Plumbing Corporation is a family-owned company serving New York City. It provides plumbing services for residential and commercial customers, along with HVAC and mechanical work, fire protection, and backflow prevention. Its work spans service and new construction.

Services

  • Sewer lines
  • Water heaters
  • Leak detection
  • Backflow prevention
  • Heating and cooling

From their website, demarnyc.com, as of October 24, 2026.

These facts are the business's own claims, and FairPipes has not checked them. AI summarized the website and can make mistakes.

What their website says

In business
"Founded in 1972"
24/7 emergency service
"24 hrs/day, 7 days/wk, 365 days/yr"
Sewer lines
"Sewer Cleaning"
Water heaters
"Water Heater Repair"
Leak detection
"Leak Detection"
Backflow prevention
"Backflow"
Heating and cooling
"expanded our specialties to include HVAC/mechanical, fire protection, backflow prevention and inspection modalities."

AI-generated summary

Summary of reviews

AI wrote this summary from the reviews below. It can make mistakes, so read the reviews too.

What reviewers like

  1. Professional work

  2. Reliable service

  3. Quick service

  4. Responsive service

What reviewers dislike

  1. Charges and failed repairs

  2. Prices they consider too high

  3. Reviewers report poor communication or unanswered follow-ups

  4. Reviewers report delays, missed appointments, or unfinished work

  • Written reviews used: 39
  • Made on October 24, 2026

AI reads the Google reviews shown on this page, up to 300. When there are more, it reads a random sample of 300 with the same mix of star ratings as all the reviews. Each point is something at least 3 reviewers say. It shows how many, and you can open their reviews. Complaints are what reviewers report, not our verdict. We check serious ones before showing them. AI can make mistakes, so read the reviews too.

Call (212) 614-9717Visit website

License record

Not checked by FairPipes yet

We do not have license records for New York yet. Look up this business on the state licensing board's website.

Details

Hours
  • Every day 7:00 am to 7:00 pm

Hours as listed on Google; we have not checked them.

Reviews

From Google

Nicole Stonbely 1 of 5

Overpriced | $2,000+ Overpriced! Too expensive I have found other master plumbers for half what they charge Services Service not listed

From Google

Marcin Kukulak 5 of 5

Reasonable price | $2,000+ I highly recommend Demar Plumbing. This was not our first project with them, and once again they exceeded expectations. All work was completed safely, professionally, and with great attention to detail. The team was knowledgeable, reliable, and ensured everything was done correctly from start to finish. A special thank you to Ewelina, who coordinated the entire project flawlessly. She was extremely professional, responsive, organized, and kept everything running smoothly throughout the process. Her communication and follow-up were outstanding, making the experience stress-free and efficient. We truly appreciate the quality of work and excellent customer service. We look forward to working with Demar Plumbing again in the future. Services Service not listed

From Google

Gail Levin 1 of 5

Overpriced I would give Demar Plumbing no stars if that were an option. I tried to sign up to be a client and to get service. Instead they were not available for most of the next week. Yet, they billed me nearly $300 for administration intake (a brief inquiry in.a phone conversation) and priority scheduling, which did not apply since they were not available! Outrageous behavior! Avoid this fraudulent company. They need to correct their billing practice of charging for an inquiry! Services Service not listed

Business reply

Demar Plumbing Corporation

Hi Gail, I am sorry to hear that you were dissatisfied with your experience. However, I would like to clarify a few points. The initial service fee of $293.96 was never paid in order to schedule service, and had service been performed, that amount would have been credited toward the work completed in accordance with our standard policy. Due to our policy, no work will be scheduled unless the fee is paid by new customers. After reviewing our correspondence, there was no indication that this was communicated as an emergency service request. Additionally, no appointment was scheduled, and no services were performed by our company. We understand there may have been a misunderstanding regarding our intake process and availability, and for that we apologize. At Demar Plumbing, we strive to be transparent about our fees and scheduling procedures and work hard to provide quality service to all of our customers. We regret that we were unable to meet your expectations and wish you the best moving forward. Sincerely, Demar Plumbing Corporation

From Google

Rob 5 of 5

Excellent techs

From Google

Nathan Caswell 1 of 5

I partnered with Demar on a commercial project in NY and it was a terrible experience from the time they stepped onsite. They pull you in with a low cost initial proposal, but if you want a functional Toilet, Sink, Drain or Fixture at the end of your project, you'll be paying irrational invoices to get your system functioning. They don't stand behind their work and they don't stand behind their 1-Year Warranty. I would never recommend this company to anyone or any Company. Stay away if you can.

From Google

Elizabeth Campbell 5 of 5

Reasonable price I wanted to extend my sincere appreciation for the outstanding work and continued partnership your team has demonstrated. Your efforts in keeping operations running smoothly at Demar have not gone unnoticed, and I’m truly grateful for your commitment and reliability. Thank you again for your dedication and support. Services Toilet repair, Water heater installation, Garbage disposal installation, Shower installation, Drain cleaning, Plumbing leak detection, Water tank installation, Plumbing pipe repair, Faucet repair, Sewer cleaning, Outdoor plumbing system repair, Toilet installation, Sump pump repair, Pool plumbing repair, Water tank repair, Water heater repair, Faucet installation, Sewer repair, Shower repair, Garbage disposal repair, Sump pump installation

From Google

Samuel Anglehart 1 of 5

Overpriced Haven’t had heat for 2 weeks they keep pushing off and messing up the fix with zero communication. Services Service not listed

From Google

Roberto Silva 5 of 5

Excellent service, impeccable work, brilliant and skillful expertise. Worth every penny.

From Google

Paul L-Martinez 5 of 5

From Google

jose zamora merino 5 of 5

From Google

Jim Conant 1 of 5

We had a terrible experience with Demar. We hired them to replace our shower works, which had been dripping badly. One of their workmen reeked of pot. When they were finished they told us they had installed a "top of the line" Delta Monitor brand shower works, but it started dripping 5 months later again and soon was worse than before. Three attempts to contact them met with no reply. So our super hired a different plumber, who told us that Demar had in fact installed a phony knock off brand instead of a true Delta, and to make things worse it had a damaged cartridge in it. We live in an 80+ unit coop building and our super/building management will never use them again, despite having used them for years. Oh well! Honesty pays.

From Google

Nick Deveau 5 of 5

Expensive but worth it. We’ve relied on Demar over the years for a range of jobs. Water booster pumps, radiator issues, vent pipe leaks, you name it. We keep going back to Demar because the quality of work is high, they’re reliable and easy to deal with. Special shout out to Fabian who has worked on our most troublesome issues with a phenomenal attitude and top tier problem solving.

From Google

Michael Naess 1 of 5

Avoid them if you can! I asked them to come view a heating pipe that caused cracks in my ceiling. They came into my apartment and looked at it for 5 minutes and then told me I needed a contractor, not a plumber. I then got a bill for $298 for those 5 minutes!

From Google

Christina 1 of 5

From Google

waldemar Bogusz 4 of 5

From Google

Chris Darlak 5 of 5

Nick R We are happy that you had a great experience with our technician and work was flawless. Operating a NYC Licensed business in Manhattan has its challenges and expenses. If we do a job in 90 Minutes – It’s because we spent 52 years learning how to do that craft in 90 minutes. You’re paying for our Experience and not just our time. If you have invoice questions or concerns, please feel free to reach out and we will be more than happy to address your concerns.

From Google

Nick Robin 2 of 5

GET A QUOTE FIRST. We used Demar Plumbing to replace a radiator value in my apartment. They came recommended by my super as they do work for other units in our building. I stupidly didn't even shop around for a quote since my super is a great guy. While they were quick to come service and the technician sent was great, the total charge for the replacement (which took no more than 90 minutes) was over $700. 500 for labor and something like 250 for the part. Please learn from my mistake.

From Google

Roman Bogaevskiy 5 of 5

From Google

Diego Pesantez 5 of 5

Positive Quality, Professionalism

From Google

David Rosenberg 5 of 5

I like these guys a lot. Professional, reliable and pleasant and the price usually seems about right.

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Positive and negative reviews

Google reviews of 4 or 5 count as positive. Google reviews of 1 or 2 count as negative. Google reviews of 3 are not counted.

About Demar Plumbing Corporation

From their website, demarnyc.com, as of October 24, 2026.

These facts are the business's own claims, and FairPipes has not checked them. AI summarized the website and can make mistakes.

What their website says

In business
"Founded in 1972"
24/7 emergency service
"24 hrs/day, 7 days/wk, 365 days/yr"
Sewer lines
"Sewer Cleaning"
Water heaters
"Water Heater Repair"
Leak detection
"Leak Detection"
Backflow prevention
"Backflow"
Heating and cooling
"expanded our specialties to include HVAC/mechanical, fire protection, backflow prevention and inspection modalities."

Summary of reviews

AI wrote this summary from the reviews below. It can make mistakes, so read the reviews too.

How summaries are made

How summaries are made

AI-generated summary

AI reads the Google reviews shown on this page, up to 300. When there are more, it reads a random sample of 300 with the same mix of star ratings as all the reviews. Each point is something at least 3 reviewers say. It shows how many, and you can open their reviews. Complaints are what reviewers report, not our verdict. We check serious ones before showing them. AI can make mistakes, so read the reviews too.

Reviews behind this point

AI-generated summary

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