The Three Cousins
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The Three Cousins
The Three Cousins is a family owned and operated pool service and pool maintenance company based out of Merrick, NY. Founded in 2017, we service the greater Long Island area, including Nassau County and Suffolk County. We strive to be the best Long Island pool service that money can buy!

Some of our services include: pool openings, power vacuum (pool vacuum), weekly service, chemical balancing, salt water pools, salt water conversions, pool closings, safety covers, safety fences, pressure washing, and more!Call 516-654-7665 for a free estimate today! With years of experience, our technicians are able to get your pool up and running as quick as possible!

Ask about our full season, all-inclusive packages to enjoy your pool without any of the hassle! Salt water systems usually pay for themselves in about three years based on all of the chemicals you're not buying. Our technicians have the experience and know-how to make sure your pool is properly closed and winterized!
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Thanks for checking out The Three Cousins. Servicing Nassau County and Suffolk County, we are one of Long Island's premiere pool service and pool maintenance companies. We handle pool openings, pool closings, power vacuum, pressure washing, weekly service, salt water conversions, salt water pools, pumps, filters, safety covers, and more!
With decades of experience, we provide high quality pool maintenance, power washing, and a variety of other outdoor services. We are also one of Long Island's leading experts in salt water pools. Our swimming pool blog is here to help you troubleshoot simple problems, DIY pool maintenance, answer FAQs, and more!
Reviews (15)
Justin S.
Justin S.
Jun 23, 2021
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They refuse to fix my pool after two weeks. They decided to drop me instead of cleaning it. Disgraceful.
Andrew E.
Andrew E.
Jun 04, 2021
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James went the extra mile to make sure our pool is ready for summer. Our pool pump broke and he tried his best to fix it but it just needed to be replaced being so old. He came to fix our pool pump way after hours and service the pool, did not leave us hanging at all.
Will continue to use for many other seasons.
Jett B.
Jett B.
Dec 04, 2020
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Love Three Cousins Pool Service! They make pool ownership easy. They take care of everything. They are very responsive and helpful regarding maintenance in between service, scheduled service days, and back office bookkeeping. Highly recommend.

All the guys are hardworking, so this isn't meant to take anything away from them, but Bobby is our main guy and we're very happy about that!
Lee M.
Lee M.
Oct 12, 2020
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Second year closing my in-ground pool. Prompt and efficient work done at a very competitive and reasonable price.
Ed C.
Ed C.
Oct 09, 2020
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Three cousins rocks !!! I had to get rid of my Previous pool company I had. They just stop showing up and run around stories. I had been with them for 5years I get it sometimes things happens I get it. But enough is enough. Three Cousins took care of my pool the entire summer and not one issue with my pool, chemicals was balance perfect. Closed my pool today and I can say that I made the right switch!!!!
Thank you three cousins see you in the spring!!!!!!!
Stay safe!!!!
Alan S.
Alan S.
Sep 23, 2020
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UPDATE!! James just completed my closing. There was miscommunication between him and me and he jumped on the chance to make this right. As a business owner, I find that when a customer is upset with something, that's an opportunity for me to show how we step up to the plate and go above and beyond to make them happy. It seems that James shares that same philosophy. That's EXACTLY what he did. He's now my new "pool guy" and he should be yours too! :-)
Sean T.
Sean T.
May 15, 2020
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Best Pool Service Company I have ever used, and I've used a ton of them. The techs are awesome in all aspects of helping out with my pool, opening, closing, cleaning, repairs, you name it. Their pricing is also very on-point and reasonable. Front desk is also really helpful and is cool with text messaging which is convenient.

So many pool companies charge you like $150 just to walk in the backyard when there's a problem, take a look at what's going on for 10 seconds, then leave, and then give you an inflated estimate to repair something that you probably can't afford with the
Lt D.
Lt D.
Aug 29, 2019
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Hands down the worst pool company I have ever encountered!

Three Cousins was hired this year to service the pool at a home that we rent, and both their service and level of professionalism has been horrific. When they first opened the pool, it remained green and cloudy for 4 weeks. Rather than really address the situation, once a week they would just pour in more chemicals, scratch their heads and tell us that eventually it would start to clear-up. A MONTH later it finally did, but only after they finally vacuumed it and told us a new pump was needed.

The weekly servicing is even more ludicrous
Irene V.
Irene V.
Jun 08, 2019
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[Intro added in response to business owner feedback]
Final work product is excellent, scheduling is a bit ... laid back. The Three Cousins not only open/close pools, they offer creative solutions for the homeowner in need. They have open/closed our in-ground pool, power washed our home and exterior walkways, replaced a wooden gate, created a brick walkway and installed an interim drainage solution. They will shop for materials at Home Depot or the Pool Store if needed. Alternatively, you can provide all supplies.

[This section of the review remains unchanged]
We started using this company a few
Chauncey W.
Chauncey W.
Oct 17, 2018
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Based on the yelps we saw here, we decided to try Three Cousins for pool service.

We scheduled an appointment over a week in advance, but they couldn't give the time of the appointment until the morning of the day of the appointment.

They let us know at 9 am, that they would be there at 2 pm. I arranged to get time off work to come and meet them, but it wasn't until after 2 that they called and said that it would be about an hour and a half until they get there. So I called in to my job and arranged to just take the rest of the day off rather than go back in the late afternoon.
Sved K.
Sved K.
Sep 15, 2018
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Dealing with corporate pool services, I finally had enough. I was tired of being treated like a price tag. Then I came across Three Cousins, genuine and honest hard working men. They answered all my questions and gave estimates free of charge. They took there time to come to my house and talk face to face. I felt like I was being helped instead of being taken advantage of. They were very knowledgeable and I recently bought my closing pool cover from them. The price was worth it, compared to other companies. One of the best family owned business out there!
Mary R.
Mary R.
Sep 13, 2018
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Wow! I called this morning and someone got right back to me. They were in my yard late this afternoon getting my pool closed down for the winter. Professional, helpful prompt ! They were even kind enough to carry my filter and pump downstairs for me! Their price was reasonable. I will definitely be calling them in the spring! Thanks guys!
Chris P.
Chris P.
Jun 19, 2018
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Excellent customer service! Called them on Saturday- spoke with Sean. Sean's cousin James serviced my pool that Monday. Fixed the problem in less then 30 min. And very reasonably priced.

Made several calls to the "well known pool companies". Never heard back from one. The other was booked until mid July! Is it realistic that someone that needs a pool serviced is going to wait until mid July? Seriously??

Three cousins now has me as a customer for opening and closings! And for any other things that may come up in the pool season!

Thank you guys so very much!!! It's a rarity
Mike C.
Mike C.
Apr 19, 2018
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Wow ! What can I say . Great staff , great price and the best service. Kudos to you three cousins. You have a customer for life . Can't wait to use your service again .
Kimia G.
Kimia G.
Feb 24, 2018
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Started using The Three Cousins last year and so happy I've found a reliable company who offers quality work at a reasonable price. Sean was professional and courteous from the first time I called to set up an appointment for an estimate. I look forward to calling them to open our pool this summer.