Pool leak detection & plumbing repair
Pool Leak Detection Quote in VA, MD & DC
Losing more than a quarter-inch of water a day? Our certified technicians pinpoint the exact leak with pressure testing, dye testing, and electronic diagnostics — then fix it fast. Get a written quote from Beltway Pools.
Unexplained water loss? +1 703 665 5333 — early detection saves significantly on repair costs.
How we find your leak
We don’t guess — we diagnose
A systematic, multi-method process locates the exact leak source before we recommend any repair — so you only pay to fix what is actually broken.
Bucket Test (Baseline)
We measure the true rate of water loss and separate evaporation from real leakage, giving us a measurable starting point.
Visual Inspection
We examine plumbing fittings, return jets, skimmers, lights, and the pool shell for cracking, separation, or moisture intrusion.
Pressure Testing
We isolate and pressurize individual plumbing lines to pinpoint pipes that won't hold pressure — without excavation.
Dye Testing
We inject tracer dye at light niches, skimmer throats, return fittings, and cracks, then watch water movement to confirm the source.
Electronic Detection
For buried plumbing, we use electronic listening equipment to detect the sound signature of escaping water underground.
Same-Visit Repairs
Most fitting, skimmer, light-niche, and equipment-pad repairs are completed in the same visit once the leak is located.
Transparent pricing
Leak detection & repair price ranges
Not sure you need full leak detection? A flat $180 service call gets a technician on site to see what's going on — and if it's something minor, we often fix it on the spot. Underground repair pricing depends entirely on the leak location and method — fittings and skimmers cost far less than buried-line repairs requiring excavation. Your written quote is itemized so nothing is a surprise.
$180
Service call — we come take a look
From $850
Full leak detection visit
$450 – $15,000
Underground pipe repair
Often fixed on the spot
Minor fixes found during a service call
Clear next steps
What happens after you request a leak quote
Request a Quote
Send your address, pool details, and how much water you are losing or where you suspect the leak.
On-Site Detection Visit
Our certified technician runs a systematic, multi-method diagnostic to locate the exact leak source — no guessing.
Written Findings & Repair Quote
You get a clear diagnosis and an itemized repair quote. If the fix is something minor, our technician can often handle it during the same visit.
Areas We Serve
Serving homeowners across Northern Virginia, Maryland & Washington, DC.
View all service areasPool Leak Detection FAQs
How do I know if my pool has a leak or if I'm just losing water to evaporation?
The standard field test is the bucket test:
- Fill a bucket with pool water and set it on a pool step (so it's in the water).
- Mark the water level inside the bucket and on the pool wall.
- After 24–48 hours, compare how much each dropped.
If the pool lost more water than the bucket, you have a leak beyond normal evaporation. In summer, pools can lose ¼ to ½ inch per day to evaporation — any loss significantly above that level warrants professional leak detection. Signs that point to a leak include wet spots near the equipment pad, cracks in the shell or fittings, or water loss that persists even when the pump is off.
How much does pool leak detection cost in Virginia or Maryland?
Professional pool leak detection in the DMV starts at $850 for a full diagnostic service, which includes pressure testing the plumbing lines, dye testing at suspected points, and an equipment pad inspection. Not sure you need full detection yet? A flat $180 service call gets a technician on site to assess what's going on — and if the issue is something minor, we often fix it on the spot. If a leak is found, we provide a written repair estimate before any repair work begins. Contact us to schedule a visit.
How long does a pool leak detection service take?
A full pool leak detection typically takes 2 to 4 hours depending on pool size, complexity of the plumbing system, and how many suspect locations need to be tested. Most leaks can be identified and located in a single visit. We provide a written report of findings, including the location and likely cause of any identified leaks, before discussing repair options.
Can you find a pool leak without draining the pool?
Yes — in most cases. Our primary leak detection methods are non-invasive and do not require draining:
- Pressure testing — we cap and pressurize individual plumbing lines to identify underground pipe leaks without exposing or draining
- Dye testing — we inject non-toxic dye near suspected leak points (lights, fittings, skimmer, returns) while the pool is full to watch for dye movement indicating a gap
- Electronic listening — used in some cases to detect vibration from water escaping pressurized lines underground
Draining is only needed if a confirmed structural crack or fitting repair requires access to a dry surface — and we'll tell you that upfront before scheduling any drain-down.
Stop losing water — find the leak
Tell us about your pool and the water loss you're seeing. We'll pinpoint the leak in a single diagnostic visit and follow up with a written, itemized repair quote.
Request Leak Detection QuoteHomeowners Who Trust Beltway Pools for Repairs
April 2025
“Robert Moore coordinates pool cleaning assignments and contracts and does an excellent job of organizing pool cleaning/repair visits. Dragan Kostadinovic is my " go to" man for organizing pool cleanings and making major repairs to our older pool, including underground hose repairs, skimmer replacements, and rebuilding and replacing pumps and valves and filters above ground. He has one particular employee who is an experienced genius in regard to determining the water flow of valves and determining solutions to complex problems. We eventually will ask them to reline the plaster in our pool because I seriously do not TRUST anyone else to do it. Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Cleaning, Remodelling, General repairs & maintenance, Swimming pool water analysis, Winterisation”
June 2025
“Beltway Pools saved us when our pool was leaking. The team was quick to diagnose the issue, and Dragan made sure everything was fixed properly. The repair process was smooth and efficient.”
April 2023
“I reviewed multiple proposals on rebuilding a pool upon the purchase of our new house. The previous owner had deferred maintenance on literally every aspect of the pool. Our pool required 100% replacement of the filtration system, heater, skimmers and reconstruction of the drainage system, pool floor, tile and coping. Beltway Pools was by far the most responsive of the bidders with the most reasonable and easiest to understand pricing. Anything that I required clarity on they provided. We now are almost a year past the initial work and they did not deviate one penny from their original pricing. They continue to support us with weekly visits (incremental cost but well worth it) for cleaning and chemical balancing. We are very pleased with our service from Beltway Pools. -Andrew T. Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Cleaning, General construction, Remodelling, Swimming pool summerisation, Swimming pool water analysis, Winterisation”