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TRUSTED BY MARATHON, FL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon17
    Verified pool and spa services reviews

Top-Rated Pool and spa technicians in Marathon - Updated Nov 2026

Core Mechanical
4.4(
28
)
Above Ground Swimming Pool or Accessories - Repair or ServiceHot Tub or Spa - Repair or ServiceIn Ground Swimming Pool or Accessories - Repair or Service+6 more

Serving Marathon, FL and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"A year ago they responded to an SOS related to a full A/C failure. They were prompt and professional. It took several days, in the heat of the summer, till they were able to fix it, but they had to get a part from the west coast so we sweated through the ordeal. While they were working on replacing the main board, I also engaged them to clean the system. I thought the charge was high ($1000), but needed it done. A year later, one of the A/C mini-split heads stopped working. They came the next day. I paid $200 for them to trouble shoot it, which took approximately 20 minutes. (Subsequently another A/C service charged me only $95 to trouble shoot!) They said they would order the part and get back to me. After I week, I had not heard from them. When I called they said they could get the part but it would take 4-6 weeks. I said okay. What could I say. I left it in their trustworthy hands. After 6 weeks I heard nothing from them. I called. I left 4 messages, which were all unreturned. On the 5th try, someone answered. He said he couldn't get the part. Would have been nice to know that 5 weeks ago. Still puzzled why they didn't communicate with me and thus the low review. I have to say that I thought they were really nice people, but obviously my business wasn't that important to them. So be it. But a little courtesy and honesty would go a long way when servicing a small community like Key West. Because of the later incident, I wanted to give them an F, but that wouldn't be fair. If you're lucky, have deep pockets, and the problem isn't complicated, they are okay. Just be aware. I thought I had actually found a reliable service, but that wasn't the case."
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Recommended by87%of homeowners
Avatar for O.P. Pool Leak Detections llc
O.P. Pool Leak Detections llc
4.7(
15
)
Above Ground Swimming Pool or Accessories - Repair or ServiceHot Tub or Spa - Repair or ServiceIn Ground Swimming Pool or Accessories - Repair or Service+6 more

Serving Marathon, FL and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"OP pool repair and leak service was great, they fixed a problem we have been having for over 1 year. We had a leak and other companies could not find it so we thought that was it, We had to live with a leak that required us to fill our pool twice a week which was costing us a lot of money on water and extra chemicals to keep our pool blue. If you are having an issue with your pool, don’t think about it twice, give OP a call, they will not disappoint! 10/10 ??"
Pool & Spa Service and Repair Project
Pool & Spa Service and Repair Project
Pool & Spa Service and Repair Project
Pool & Spa Service and Repair Project
Pool & Spa Service and Repair Project

+33

Response time10 hrs
Response rate95%
Recommended by86%of homeowners
Avatar for KEYS JL POOL SERVICE LLC
KEYS JL POOL SERVICE LLC
5.0(
6
)
Swimming Pool - Clean and Maintain

Serving Marathon, FL and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Wonderful job Mr. Nodarse do, once a week they come out and do maintenance to my pool, leaving the pool nice and spotless, very knowledgeable about the pool cleaning business, leaned a lot over the few weeks keys JL pool service LLC has been cleaning my pool, great job, best prices in the keys and I would recommend them to anyone from the keys!"
Response time10 mins
Response rate93%
Recommended by100%of homeowners
Avatar for AAA Construction & Restoration Services
AAA Construction & Restoration Services
3.8(
201
)
Above Ground Swimming Pool or Accessories - Repair or ServiceHot Tub or Spa - Repair or ServiceIn Ground Swimming Pool or Accessories - Repair or Service+6 more

Serving Marathon, FL and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I called several companies to get a quote and neither one showed interest in coming over to inspect the damage unless I was comfortable with their phone quote and gave them some confirmation that I would be working with them. AAA Construction was the only company that scheduled a next day visit for a visual inspection of the damage without any guarantee that they would get the job. The owner came in and explained what would need to be done depending on the extent of the damage once the wall and flooring was removed. I received a quote the very next day. All my questions regarding the quote and work were answered before I even agreed to do the job with them. 
Regarding the job itself, the crew that was sent to my house was very professional and did a really nice job (a lot of attention to detail). They were bilingual (Spanish and English) which is a plus for me since my husband doesn't speak Spanish and my mother who was the one at home letting the crew in to do the repairs only speaks Spanish. The crew was very careful leaving everything clean whenever they finished for the day.
The entire job took about a week, just like they had anticipated, and I'm really pleased with the results. 
I would definitely hire AAA Construction again if needed.

"
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+21

Recommended by84%of homeowners
Poseidon Pools & Spa LLC
5.0(
1
)
In Ground Swimming Pool or Accessories - Repair or ServiceSwimming Pool - Clean and Maintain

Serving Marathon, FL and surrounding areas

In business since 2022

Free estimates

Credit card accepted

Poseidon Pools Spa is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Recommended by100%of homeowners
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Pool and Spa Servicing FAQs, answered by experts

Follow these general safety tips for spas and hot tubs:

  • Keep your exterior electrical receptacles covered and dry, especially around your hot tub and pool during periods of use.

  • Make sure you have a GFCI (ground fault circuit interrupter) properly installed to ensure no one gets accidentally shocked or injured by electrocution. 

  • Don’t use the hot tub or your pool during a thunderstorm. 

  • Before using the hot tub, have a certified electrician thoroughly inspect your hot tub and its wiring to make sure you’re in full compliance with all applicable local building codes. 

If you want to have a chemical-free spa, or if you are wondering how to keep your hot tub clean naturally, there are several options. Some individuals choose to run their hot tub without treatment at all and simply clean it more often (although you risk bacteria, fungi, and algae growth if you take this route); others use natural products like vinegar or Borax. Ozone, ultraviolet light, and electrolysis systems are also eco-friendly ways to have a clean hot tub without chemicals. Saltwater hot tubs are popular with people who are sensitive to chlorine, bromine, and other traditional hot tub chemicals.

Using bubble bath, bath oils, bath salts, or moisturizing products that contain butters or oils can damage your jetted tub. Because of the water pump and jet mechanism, you need to be more selective with products for a jetted tub than you would for a traditional bathtub in order to keep it functioning properly and avoid expensive repairs. These products also leave residue that can feed mildew and mold, so it’s best to avoid them.

Hot tub repair costs are less expensive than purchasing a new one, especially if your warranty is still intact. You can shop for a secondhand unit or find a deal for a trade-in. If the price to repair your hot tub is higher than the cost of a new one, consider replacing your unit.

When your hot tub is completely dry, there is typically no need to introduce antifreeze into the plumbing. However, if you desire an extra layer of protection against potential freeze damage, you can consider adding some RV antifreeze to your hot tub lines. Just ensure that you use RV antifreeze specifically, as automotive antifreeze is highly toxic and should be avoided.

The Marathon, FL homeowners’ guide to pool and spa services

From average costs to expert advice, get all the answers you need to get your job done.