Pool Leak Repair in Flower Mound, TX
Flower Mound Pool Resurfacing handles pool leak repair in Flower Mound, Texas: confirming that the pool is losing more than evaporation, then sealing leaks in the shell, at fittings and skimmers, and in the pipe joints. Pools lose water through evaporation, cleaning, leaks and splashing, according to the U.S. Environmental Protection Agency's WaterSense program, so the first job is telling a leak from the rest. Finding the leak has its own price: typical Dallas–Fort Worth figures for 2026 put professional leak detection at $200 to $500.
Request a free estimate, any time. We'll talk through how fast the water level drops, any wet spots or bubbles you've noticed, and what has been checked so far.
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Is the pool leaking, or just evaporating?
The EPA's water-loss line
By the EPA's measure, a pool that drops more than 2 inches a week is likely leaking, and in hot, dry places with high evaporation the line moves to 3 inches a week. The EPA doesn't say which places count as hot and dry. For the heat here, Grapevine Dam, NOAA's nearest station with full 1991–2020 normals, averages 104.3 days a year that reach 90°F or more.
The bucket test, step by step
The EPA's pool guide gives a test anyone can run. On a day without rain or heavy wind, shut off every pool system, the filtration, cleaners and automatic fill included, and keep the pool closed for 24 hours. Fill a 2.5- to 5-gallon bucket to about an inch from the top, set it on a step so at least two-thirds of it sits under water, and mark the water level inside the bucket and on the pool. If the pool has dropped more than the bucket after 24 hours, the pool may have a leak.
Other signs of a leak
Wet spots around the pool, and air bubbles in the return line or the pump strainer, can point to a leak as well, according to the EPA. It warns that small leaks can quickly become big ones, and suggests shutting off an automatic fill for 24 hours once every three months to test, since a fill valve that malfunctions can send water to the overflow drain.
Flower Mound Pool Resurfacing will talk through your bucket test results and what they point to.
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(469) 526-3886Where pool leaks are found
The EPA lists the places pool leaks turn up: the liner, the pump seal, the pool piping, the connection between pool and pipe, the pool's edges and the pipe joints.
Through the shell and the finish
A concrete pool's watertightness is meant to come from its shell. The American Shotcrete Association's position is that a quality shotcrete shell should be functionally watertight on its own, and that the plaster or tile applied afterward is not what makes a pool watertight. An article in its magazine reports that the National Plasterers Council calls plaster no waterproofing coating or membrane and requires a watertight shell beneath it. The Association knows of no water-loss standard written for pools; for open liquid-containment structures it points to ACI 350.1-10, which allows a loss of 0.05 percent of the volume a day over a 72-hour test, after 3 days of filling and saturation.
When a shell fails a watertightness test, the Association looks to placement problems such as sand pockets, overspray and rebound rather than the material, and suggests taking cores for petrographic analysis. A crack running through the shell is covered under pool crack repair, and water getting behind loose or hollow plaster under pool plaster repair.
At fittings and the skimmer
SGM, a plaster maker, has any water pushed through the shell by hydrostatic pressure, which it calls weepers, stopped with hydraulic cement before its finish goes on, plugging the leaks and sealing around the fittings. A leak around the skimmer is priced as a repair of its own in national cost figures, and that work is covered under pool skimmer repair.
In the plumbing
Pipes are tested under pressure. The 2021 International Swimming Pool and Spa Code has circulation piping, other than piping built into the pool itself, hold a hydrostatic test of 25 psi for at least 15 minutes, and bars compressed air for testing plastic piping. The Town of Flower Mound's pool packet has pool plumbing water-tested to at least 15 psi at the same inspection that checks the deck steel and electrical bond on a new pool. Where soils swell, the Houston engineering guidelines on pools call for plumbing connections designed to allow for movement.
Flower Mound Pool Resurfacing will talk through where your pool is most likely losing water.
Call or request a free estimate any time, 24/7.
(469) 526-3886How pool leaks are repaired
Hydraulic cement for leaks in the shell
Hydraulic cements set fast enough to stop running water. QUIKRETE describes its Hydraulic Water-Stop Cement, a blend of portland and calcium aluminate cements, as blocking running water and plugging leaks in concrete and masonry, swimming pools included, with a final set of less than 5 minutes and a special white version for pool patching. Its directions clean the area of loose material, dirt, algae and mildew, enlarge small cracks and holes while avoiding V-shaped cuts, and press the cement in from the top down, holding light pressure until it sets and the leaking stops. Only what can be used in 2 to 3 minutes is mixed. Makers differ on the cut: SGM chisels a V-shaped channel for its underwater pool patch.
With the water in, or drained
Some leaks can be sealed with the pool full, since these cements are made to block running water. Others need the pool emptied: national cost figures note that leak repair often involves draining, patching and refilling. Emptying a pool has a cost of its own, because the National Plasterers Council sees a risk to the interior finish in every drain-down, and SGM asks for special attention when its bond coat goes on a pool that sits below the water table or is leaking.
Drains and suction lines
Opening a main drain or suction line brings in the anti-entrapment rules. Flower Mound's amended pool code requires suction entrapment avoidance under APSP 7 (ANSI/PHTA/ICC 7), pointing public pools to the state's rules instead, and the 2021 model code has suction outlet fittings listed and labeled to APSP 16. Custom Molded Products, a drain and skimmer maker, says missing, broken or cracked suction fittings must be replaced, and calls for its Galaxy drain cover and screws to be replaced every seven years.
Plumbing permits and licences
Plumbing work needs a Town permit in Flower Mound, and the Town's code has pool and spa plumbing done by a plumber who is licensed and authorized to work in the town; its permit page adds that such contractors hold a State of Texas licence and register with the Town. Texas's Plumbing License Law counts piping that supplies, circulates or recirculates water as plumbing, and whether a given pool-pipe repair falls under it is a question for the Texas State Board of Plumbing Examiners or the Town. The Town's amended pool code also asks for a permit before a pool is repaired or altered, so call Building Inspections before the work starts.
Flower Mound Pool Resurfacing will talk through sealing the leak with the water in or the pool drained.
Call or request a free estimate any time, 24/7.
(469) 526-3886
Leaks and the water bill in Flower Mound
Water put back into a leaking pool comes through the meter. Under the Town's Ordinance No. 33-26, from October 1, 2026, each 1,000 gallons after the first 2,000 in a month bills by block: $5.62 up to 10,000 gallons, $7.60 to 15,000, $8.65 to 50,000 and $9.71 above that. Topping up has rules of its own. As of October 2026 the Town is operating under its Long-Term Water Conservation Plan, and if Stage 1 of its emergency plan is declared, adding water to keep up an existing pool's level is treated as outside water use under the Stage 1 watering schedule.
Roanoke, which buys its water wholesale from Fort Worth, asks for a permit before any repair of plumbing work and has adopted the 2024 edition of the International Swimming Pool and Spa Code; our page on pool leak repair in Roanoke covers that city.
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(469) 526-3886Pool leak repair costs around Dallas–Fort Worth
- Leak detection (Dallas, 2026)
- $200–$500
- Leak detection, flat rate (DFW, 2025)
- commonly from around $500–$700
- Leak repair once found, average (national, 2025)
- $500–$1,500
- In-ground leak repair, full range (national, 2025)
- $100–$5,000
- Excavation, per hour (national, 2025)
- $100–$300
Published averages and other companies’ ranges, not our prices; no Dallas–Fort Worth repair figure was found. A real price needs a look at the pool.
Detection and repair are priced apart. Typical Dallas–Fort Worth detection fees in 2026 start at $339 and rise with the testing required, with the repair estimated once the leak is found, and national 2025 figures put an in-ground repair at $350 to $2,700 plus the cost of draining, refilling and treating the water.
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(469) 526-3886Pool leak repair questions and answers
How much does it cost to fix a leak in an inground pool?
National figures from 2025 put a leak repair, once the leak is found, at $500 to $1,500 on average, with in-ground repairs running anywhere from $100 to $5,000 and excavation billed at $100 to $300 an hour. Finding the leak is usually a separate charge; Dallas detection in 2026 typically runs $200 to $500. Flower Mound Pool Resurfacing prices a repair after the leak's location is known.
Where is the most common place for a pool leak to occur?
The EPA doesn't rank them, but its list covers the liner, the pump seal, the piping, the pool-to-pipe connection, the pool's edges and the pipe joints. In a concrete pool, the American Shotcrete Association has pointed to sand pockets, overspray and rebound when a shell fails a watertightness test.
Can you fix a pool leak without draining?
Some leaks, yes. QUIKRETE's water-stop cement blocks running water, and SGM's Dynamite Pool Patch is made for underwater patching. National cost figures note that many leak repairs still involve draining, patching and refilling, depending on where the leak is.
What is the best way to fix a leak in a swimming pool?
Find it first, then match the repair to where it is. The EPA's bucket test confirms the loss; hydraulic cement plugs leaks in concrete and around fittings; cracks are injected or patched; and repaired pipes are pressure-tested, which under the 2021 International Swimming Pool and Spa Code means 25 psi held for at least 15 minutes.
How much water loss is normal for a pool?
The EPA's guide reads more than 2 inches a week as a likely leak, or more than 3 inches in hot, dry areas with high evaporation. Below that, evaporation and splash-out may account for it, and a 24-hour bucket test settles the question.
Get a free pool leak repair estimate
Flower Mound Pool Resurfacing answers calls and estimate requests 24/7. Tell us how many inches the pool loses in a week and where you have seen wet ground or bubbles.