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Find Swimming pool or accessories repair or service pros in Gaithersburg

Avatar for Watermark Swimming Pool Services Inc
Watermark Swimming Pool Services Inc
4.7(
80
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Watermark carried out all defined services professionally and thoroughly. I received proposal within 3 days after requesting one. The proposed cost and work coverage was better than others I had received. Nick came to the house once I requested a proposal and reviewed the pool area so that his proposed work would be reflective of all conditions of the pool. The overall work was carried out professionally and the end result left me with a 'new pool'. The pool is relatively large (20 X 45)- 31,000 gallons and I now have a pool that is something I am proud. Nick stayed on top of all work in progress and kept me informed of each step and what was expected of each step. There were no hidden costs or surprises during the job or at completion."
Additional Photos
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Response time3 days
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for C & D'S INSTALLERS
C & D'S INSTALLERS
4.3(
39
)

Serving Gaithersburg, MD and surrounding areas

In business since 1995

Credit card accepted

"C&D were really impressive. I had used them some years ago and (through no fault of theirs) I had to install a new liner. They came out promptly, did the work in a timely manner and I was swimming again once the pool had been refilled. I would heartily recommend them to anyone who needs any kind of pool work done."
completed back fill
Finished Wooden Outline Border Landscaping
Laying the 6 Mil Plastic for the Weed & Water Control around the Pool for the Commercial Black Border Outline Landscaping Project
Prepping the Pool for the Commercial Black Border Outline Landscaping Project
Start of the Backfill process

+33

Recommended by80%of homeowners
Avatar for Subcomm Pools
Subcomm Pools
5.0(
9
)

Serving Gaithersburg, MD and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"Great first start! Called to get estimate and said they could come out next day! Friendly estimator came out in time they told me they would be...good start! Estimated work to be done on vinyl liner and gave me estimate within an hour just as he said he would...I love promises kept! Explained some of the work to be done and made some suggestions...so far, really happy and hope insurance will be as happy with price as it was more realistic than the last few I've gotten...
"
Pool renovation
Pool renovation
Pool renovation
Additional Photos
Additional Photos

+5

Recommended by100%of homeowners
Avatar for BJ Pool & Spa
BJ Pool & Spa
4.2(
42
)

Serving Gaithersburg, MD and surrounding areas

In business since 1983

Credit card accepted

"BJ Pool & SPA is a first rate company.  Bob, the owner, has been working with pools for decades and knows everything about pools. He is actually willing to try to repair equipment, unlike many other lesser companies that merely put in new stuff.  If you have any issues with your pool and spa, these are the people to call: they will fix anything and will always provide you with the best options.  Bill, the specialist who came to work on the unusual configuration of equipment for my small indoor pool and spa, demonstrated a great deal of experience, ability and honesty.  BJ Pool & Spa might not seem cheap, however, given their vast knowledge, experience and technical ability, they will provide you with quality service and advice that will save you money in the long run.  Their competence and integrity is extremely reassuring.  It isn't always easy to find a good pool company (this industry isn't as regulated as other professions), and it took me a while to find this one. BJ Pool will be the company I call when I want honest and reliable service  
"
Recommended by84%of homeowners
Avatar for VIP POOLS
VIP POOLS
4.3(
18
)

Serving Gaithersburg, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Happy with pool surface...mini-pebbles with glass beads. Weekly maintenance during pool season since 2016. Paul and his team are professional, courteous, caring, hardworking and kind. Paul even came over on Labor Day weekend when our pump was not working...now that is above and beyond! Paul really cares about his clients and their satisfaction. Prices are fair and comparable. The water is always crystal clear and thankfully no one has ever gotten sick from swimming in our pool. Thank you, Paul and VIP Crew!"
Pool Management
Swimming pool equipment supply and repair
Pool service and water treatment
Recommended by100%of homeowners
Avatar for Dig M Installers
Dig M Installers
3.9(
38
)

Serving Gaithersburg, MD and surrounding areas

In business since 1979

Credit card accepted

"This is the second time that Dig M Pools did and installation for us. Again we were very happy with the job they did. We purchased our pool from them and it is a well made product. The owners wife was very helpful when we were deciding what pool to purchase. I would recommend Dig M Pools as first choice. Excellent job. Thanks Dig M."
Round Pool in Patio
Oval Pool With Deck
Liners
Round Pool Sunk
We hand trowel

+2

Recommended by81%of homeowners
Avatar for Provident Electric
Provident Electric
4.9(
79
)

Serving Gaithersburg, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"If you're looking for an honest electrical company, look no more. Larry is completely honest and I can't recommend him high enough. He had a prime opportunity to not only charge me for a service call but to charge for parts and labor on a very simple fix. He walked me through it over the phone when other electrical companies were more than happy to come to my home and charge me for the service call and God only knows what else. Thanks Larry! You're the best!"
Additional Photos
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+28

Recommended by97%of homeowners
Avatar for GPRO Landscaping LLC
GPRO Landscaping LLC
4.9(
63
)

Serving Gaithersburg, MD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"The GPro team were so meticulous! They measured really carefully and the result is a walkway that is not only beautiful, it drains water away from my house. I won’t have any more puddles or ice patches to contend with. They were also really careful to preserve the plants I wanted to keep, so now I have a lovely walkway and my garden is still intact, too. I’m really pleased with their work."
Landscaping - Hardscaping & Pavers Project
Patios Project
Patios Project
Landscaping Project
Decks & Porches Project

+74

Recommended by100%of homeowners
Showing 1-10 of 28
FAQs for swimming pool or accessories repair or service projects in Gaithersburg, MD

A well-maintained, correctly sized pump lasts eight to 12 years. Help it reach the upper end of that range by cleaning the strainer basket, monitoring for unusual sounds, and verifying that the pump’s flow rate matches the filter's specifications. Address leaks or pressure dips quickly—minor fixes now cost far less than a premature replacement later.

Listen for grinding or screeching, watch for breaker trips, and keep an eye on sudden spikes in your electric bill—any one of these signals the pump needs attention. If repairs continue to accumulate or the unit is older than eight years, replacement often makes more financial sense. Contact a qualified pool repair professional immediately to diagnose the issue and prevent further damage to the filter or plumbing.

It’s best to keep your pool pump on while swimming. Keeping the pump on while you swim allows the filter and skimmers to catch debris in real-time, maintaining water features flowing. It’s not mandatory, but weaving swim time into your regular eight-to-12-hour schedule helps maintain crystal-clear water and consistent chemical levels without extra effort.

Start by shutting off the power at the breaker and verifying with a voltage meter. Close the water valves, bleed pressure, and unbolt the old pump. Wire the new unit according to the manufacturer's diagram, glue in the PVC unions, prime the housing, and tighten everything securely. Open the valves, flip the breaker, and watch for steady water flow and quiet operation. If any step feels beyond your expertise, consider hiring a licensed electrician or pool technician.

The Gaithersburg, MD homeowners’ guide to swimming pool or accessories repair or services

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

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    Not sure who to call to fix a pool light? Learn why a pool repair service is best, what electricians can do, and what replacement costs.