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John I Kostynick Plumbing Corp

Plumbing, Heating and Air Conditioning, Drain Pipe Installation,

About us

Long established plumbing & heating company servicing Nassau County, New York. Member of National Association of Plumbing, Heating, Cooling Contractors & The Nassau County Association of PHCC.

Business highlights

69 years of trusted experience
Emergency Services Offered

Services we offer

Plumbing & Heating – Emergency Repairs, Pipe Rooter, Boiler Repair, Water Heater Repair & Replacement, Faucet Installation, Yard Drain Repair, Leak Repair, Basement Flood Clean Out, Tub, Toilet, & Sink Repair & Installation. Generators. Electrical Service, Repair, & Installation. HVAC Repairs, Replacements, Duct Work, & Air Conditioners.

Amenities

Free Estimates
Yes
Warranties
Yes
Emergency Services
Yes


Accepted payment methods

Check

Reviews

5.030 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
93%
4
0%
3
3%
2
0%
1
3%


Rating CategoryRating out of 5
quality
5.0
value
4.6
professionalism
4.9
responsiveness
5.0
punctuality
4.9
Showing 1-25 of 30 reviews

Deena P.
05/2018
5.0
heating & air conditioning/hvac, plumbing
  + 0 more
It was a very tough repair and they came in under their estimate. The men were very nice and knowledgeable.
Description of Work: Leak repaired on boiler

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$900

Diane W.
07/2017
5.0
plumbing
  + -1 more
I have used this company several times and am happy with their work.
Description of Work: They have been to my several times for various jobs: installing new kitchen faucet, fixing under sink leak, replacing valve in old steam radiator....

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Aviva N.
04/2017
5.0
plumbing
  + -1 more
Called on friday made appt for monday morning. Work done quickly. Neatly. Pleasant. Fair price for parts and labor. My new plumber!
Description of Work: Replace kitchen faucet and valves. (We supplied most of the parts)

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

David S.
02/2016
5.0
heating & air conditioning/hvac, plumbing
  + 0 more
We found a leak in the heating system. They responded quickly despite the bad weather. Though the source of the leak was not easy to determine, they were able to tack it down and complete the repair successfully. The quality of the workmanship was excellent and we felt the price was reasonable too. We will definitely use them again.
Description of Work: Repaired heating system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$300

Louise Z.
11/2015
5.0
heating & air conditioning/hvac, plumbing
  + 0 more
unknown
Description of Work: Replaced gas heat boiler.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Andrew J.
08/2015
5.0
plumbing
  + -1 more
Perfect job! He arrived on schedule, removed the old corroded kitchen sink drain pipe, and replaced it with new parts. It all works perfectly now and the plumbing work looks solid. The drain pipe also has a dishwasher drain connection, which he had to reconnect as well.
Description of Work: Replaced an old corroded kitchen sink drain pipe.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$272

Harold M.
04/2015
5.0
plumbing
  + -1 more
They were prompt in their response and did what they said they would do. I was satisfied with their service. Their price was on the high side.
Description of Work: I used them for plumbing.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$400

Stephanie G.
03/2015
5.0
plumbing
  + -1 more
Have responded immediately with each of 4 leaks over an 8 month period, all from different sources. Very fair prices. Pleasant and trustworthy staff. Gary is compassionate and kind. Have solved the problems that were plumbing in nature, and didn't even charge me on the last call that wasn't a plumbing issue.
Description of Work: Identified and fixed several leaks

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Gail G.
02/2015
5.0
plumbing
  + -1 more
The job went very well. The men with whom I spoke in the office were very efficient and polite. The plumbers who came were on time, nice, and did a great job. The job was 2 months ago and everything is great. I believe that the price that I mentioned above included a one piece toilet and seat. I have used this company several times and have always been pleased with their work. I didn't rate the price because I didn't ask another plumber so I can't compare their price with anyone else.
Description of Work: They removed an old toilet, picked up a new one for me, installed new sink and toilet, and repaired faucets in a shower.

Rating CategoryRating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,000

DEREK S.
10/2014
3.0
plumbing
  + -1 more
I met Gary, the owner about two weeks ago about a potential job to run a waste line from kitchen sink to septic tank. Gary was a nice guy who shown up on time and pleasant to talk with. He promised to get back to me with an estimate but that was the last time I ever heard for him. It's been two weeks and I called and left a few messages for him to get back to me since it's urgent and I need to decide which contractor to use. As of today, no email or call. I found the experience very odd. If the job is too small or your team is busy with other projects then just say so and don't leave customers hanging.
Description of Work: Poor communication and not reliable.

Rating CategoryRating out of 5
professionalism
3.0
responsiveness
2.0
punctuality
5.0


Doris M.
04/2014
5.0
plumbing
  + -1 more
Gary, the owner, reviewed hit list, offered suggestion and was flexible on price. Called for quote, man arrived within hours. Verbal quote given in one day, written soon after. Pleasant and concerned crew, Lou and Kenny, did everything to order and cleaned up after themselves.
Description of Work: Relocated laundry plumbing, refitted and rehung 30' waste pipe, fixed the domestic water main, abandoned old cess pool waste pipes, relocate one hosebib, fix another hosebib, added new lever valves throughout basement, installed 2 new copper steam return lines (approx. 100 feet), install new dryer vent thru brick wall.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,425

Chi L.
01/2014
5.0
plumbing
  + -1 more
Went to bed at midnight, and it was 68 degrees with the heat on. Woke up at 8am to 60 degrees, so the heater must have stopped working close to 8am, since it's only 10 degrees outside. Went down to the boiler and saw the pilot flame was out. Tried restarting it by relighting pilot, no good. Regular plumber had a death in family, so found these guys thru Angies list. Called at 9am and they were able to get me into the schedule for today. Two guys came, he saw no pilot light also and replaced the pilot sensor. After 20 minutes of working in the cramped confines of the boiler housing, the boiler was back working again.
Description of Work: Boiler wasn't firing up, plumber replaced the pilot sensor and it fired up again.

Rating CategoryRating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
3.0

Yes, I recommend this pro
$260

Maria T.
09/2013
5.0
plumbing
  + -1 more
The job turned out to be much more involved than originally thought because they had to go through a concrete wall that was much thicker than they thought at first. However the estimate price remained the same. The work was done in a timely manner and they were neat and clean and did a great job
Description of Work: Installed Laundry sink

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,700

Mike R.
08/2013
5.0
plumbing
  + -1 more
The conversation and agreement that we have made has been good so far. He was the best out of the group. They were helpful in coming to an agreement on pricing. The owner is a gentleman. I will review with Angie's List once the contractor has completed the work.
Description of Work: I entered into an agreement with them to help me on the installation of an electric generator.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

SUSAN H.
12/2012
5.0
plumbing
  + -1 more
They're great; I love them! They're just so flexible and get there in a timely manner. They don't rip you off. They're just so polite and customer-oriented.
Description of Work: I'd had a faucet replaced by them, but I couldn't get the stopper to go down the next week. They came back to fix it.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$400

Dennis M.
12/2012
1.0
plumbing
  + -1 more
He never showed up and did not call.
Description of Work: Called this provider about a leaky boiler, and he called right back on a Sunday night. I explained my problem. He was initially very interested, probably thinking that I needed a new boiler. When he learned that the gas company had already told me what the problem might be, he seemed disinterested. Yet, he made an appointment with me to come by the next afternoon. He did not show up or even call at the agreed upon time to tell me he was not coming. Three hours of wasted time. Ugh.

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
1.0


Anna R.
12/2012
5.0
plumbing
  + -1 more
The owner came out, and was professional, courteous, and knowledgeable. He fixed the lever/handle on my toilet because it was not flushing, and also addressed the sink issue in the kitchen. When he realized he did not have the appropriate tool, he told me one of his employees would be coming out to fix it, which is what he did. He was also professional, courteous, and knowledgeable. Also, when the owner, Gary, came out, he advised me to change the wattage on my light bulb in the kitchen because the light was flickering on and off.That was above and beyond and I appreciate that.
Description of Work: Fixing lever in Powder Room, and clogged sink in kitchen.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$200

Caryl C.
12/2011
5.0
plumbing
  + -1 more
I called them and they came out the same day. The technician did everything he was supposed to do; took the time and fixed it absolutely perfect. This was really an emergency and the technician was excellent. I have used them in the past and they are really very good and reliable. I have never had a problem with them; their servicemen are great and the prices are fair. I will use them again in the future.
Description of Work: I used John I Kostynick Plumbing to help me during a plumbing emergency. There was a flood under my kitchen sink.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$200

Robert S.
10/2011
5.0
plumbing
  + -1 more
They were excellent. One of the things that stood out about them was that when I called and made an appointment, they were very accommodating, really helpful and very responsive. I did not have any complications whatsoever. Everything is holding up great. The first job cost $600 while the second cost probably about $400. I would rate them highly and would definitely use them again in the future; it is hard to find a good plumber.
Description of Work: I used John I Kostynick Plumbing Corp to install a kitchen faucet and on the second visit to replace a kitchen disposal.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,000

RICHARD B.
09/2010
5.0
plumbing
  + -1 more
They were called on a weekend and showed up first thing Monday Morning to perform the work on time on budget. They were clean, professional and had the parts in stock ready to go
Description of Work: Replaced Kohler Thermostatic Valve

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$300

Joan F.
05/2010
5.0
plumbing
  + -1 more
They were punctual and prompt. They were good serviceman, and responded to my requests. I needed them to come back and fix something on the same day, and they called to let me know they were coming both times.
Description of Work: This company did some plumbing work for me, including fuxing a broken pipe. I've used them for years.

Rating CategoryRating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$140

ROBERT WARD C.
05/2009
5.0
plumbing
  + -1 more
It only took them about an hour and a half. They were friendly. They did the job and they were very efficient.
Description of Work: John I Kostynick Plumbing fixed a leak in my kitchen sink.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$400

Sally B.
10/2008
5.0
plumbing
  + -1 more
We called this company and they responded professionally and scheduled an appointment. They were prompt, efficient, and I felt that the price that we paid was reasonable. To alleviate the problem with our toilet, all of the inside parts of the toilet needed to be replaced. The plumber advised us that this particular toilet was installed in the early 1980's and aside from usual wear and tear over the years, the unit is in excellent condition. This made us feel that there was true value in paying for the repair work vs. having to replace the entire toilet. The toilet is now running fine, and I would highly recommend this firm again.
Description of Work: Our toilet began constantly running to the point where we had to turn it off completely until we could arrange for a plumber to fix it. Before making any calls to locate a plumber, I looked up plumbers in our area through Angie's List. John Kostynick was listed with excellent feedback so we decided to give them a call.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$232

LINDA B.
09/2007
5.0
plumbing
  + -1 more
I liked that they came very quickly and were able to get it done right away. It seemed that they knew what they were doing because they did it easily. Real nice people, and are very fair priced. I would recommend them for plumbing.
Description of Work: I had them do some pipe fitting in my bath room.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$300

Christopher P.
02/2006
5.0
plumbing
  + -1 more
I WAS HAPPY WITH HOW FAST THIS COMPANY RESPONDED TO MY CALL. THE PLUMBER TOOK NO TIME TO UNCLOG THE TOILET. THE PLUMBER WAS CLEAN, NEAT AND PROFESSIONAL.
Description of Work: UNCLOGGED THE TOILET

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$200
    • 1(current)
    • 2

Contact information

27 Jericho Tpke, Mineola, NY 11501

kostynickvillageplumbing.com

Service hours

Sunday:
7:30 AM - 5:00 PM
Monday:
7:30 AM - 5:00 PM
Tuesday:
7:30 AM - 5:00 PM
Wednesday:
7:30 AM - 5:00 PM
Thursday:
7:30 AM - 5:00 PM
Friday:
7:30 AM - 5:00 PM
Saturday:
7:30 AM - 5:00 PM

Licensing

Bonded

Insured

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
No
EPA Lead-Safe Certified
No
Use Green Products or Work Practices
Yes
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Plumbing,
Heating and Air Conditioning,
Drain Pipe Installation,
Electrical,
Ceramic Tile

FAQ

John I Kostynick Plumbing Corp is currently rated 5 overall out of 5.

Sunday: 7:30 AM - 5:00 PM

Monday: 7:30 AM - 5:00 PM

Tuesday: 7:30 AM - 5:00 PM

Wednesday: 7:30 AM - 5:00 PM

Thursday: 7:30 AM - 5:00 PM

Friday: 7:30 AM - 5:00 PM

Saturday: 7:30 AM - 5:00 PM

John I Kostynick Plumbing Corp accepts the following forms of payment: Check
Yes, John I Kostynick Plumbing Corp offers free project estimates.
Yes, John I Kostynick Plumbing Corp offers eco-friendly accreditations.
No, John I Kostynick Plumbing Corp does not offer a senior discount.
Yes, John I Kostynick Plumbing Corp offers emergency services.
Yes, John I Kostynick Plumbing Corp offers warranties.
John I Kostynick Plumbing Corp offers the following services: Plumbing & Heating – Emergency Repairs, Pipe Rooter, Boiler Repair, Water Heater Repair & Replacement, Faucet Installation, Yard Drain Repair, Leak Repair, Basement Flood Clean Out, Tub, Toilet, & Sink Repair & Installation. Generators. Electrical Service, Repair, & Installation. HVAC Repairs, Replacements, Duct Work, & Air Conditioners.

Contact information

27 Jericho Tpke, Mineola, NY 11501

kostynickvillageplumbing.com

Service hours

Sunday:
7:30 AM - 5:00 PM
Monday:
7:30 AM - 5:00 PM
Tuesday:
7:30 AM - 5:00 PM
Wednesday:
7:30 AM - 5:00 PM
Thursday:
7:30 AM - 5:00 PM
Friday:
7:30 AM - 5:00 PM
Saturday:
7:30 AM - 5:00 PM