While your swimming pool may be a major source of enjoyment, it needs to be kept in good working order to be usable and not damage the surrounding area. Even with regular cleaning and care, any swimming pool can spring a leak. Leaks can damage the land around your pool and cause your water bill to skyrocket, so it is a good idea to have them fixed as soon as possible.
Numerous pool issues can lead to a leak, from cracks in the concrete and tears in vinyl liners to equipment failure. Because of these various factors, the cost to repair a leak has a lot of variation. The average cost to repair a leak ranges from $500 to $3,500, with most homeowners paying around $900 for detecting and repairing a crack in the wall of the pool.
Swimming Pool Leak Repair Costs | |
---|---|
National average cost | $900 |
Average range | $500-$3,500 |
Minimum cost | $175 |
Maximum cost | $6,000 |
To determine what part of your pool is leaking, you may need to have a pool leak detection test done. Some DIY methods involve dropping food coloring near where you suspect the leaks, but most leaks are quickly detected using ultrasonic equipment to find where the water is leaving your pool. Depending on whether you hire the same company to make the repair or not, this can cost from $100 to $500 on average, depending on the pool type and where the suspected leak is. For example, above-ground pool leak detection is usually less expensive than for an in-ground pool, and cracks hidden behind things like tiles or pipes that are buried beneath the ground may have higher detection costs.
Pool leaks are a sign of a problem, and many of these problems can become worse over time. For example, if the leak is caused by a failing seal around lights or equipment, this could eventually damage that equipment.
In addition, leaks can damage your landscaping, with soil erosion and muddy lawns being very common with ongoing leaks. Keeping your pool full with a major leak can quickly raise your water bills as you attempt to keep the pool usable. By finding and fixing the leak early, you prevent more expensive problems from adding up in the future.
In-ground pools have a wide variety of places that may be the source of the leak, and finding and fixing each of these issues has a separate cost:
Type of Problem | Repair | Average Cost |
---|---|---|
Broken seal around the skimmer | Replace the gasket | $100-$125 |
Broken seal around the light | Replace the gasket | $125-$175 |
New vinyl liner beading required | Replace the beading to tack down the liner | $130-$200 |
Spreading spider cracks in fiberglass | Clean, sand, and apply a new coat of gelcoat to the area | $300-$500 |
Small tear or hole in the vinyl liner | Apply a vinyl liner patch and adhesive to the area | $350-$550 |
Crack in the plaster | Fill the crack with cement and replaster the area | $500-$700 |
Large tear or hole in the vinyl liner | Replace the liner | $1,700-$2,500 |
Crack in the pool beam | Resurface and patch the crack for the entire length of the pool | $4,000-$5,000 |
Sometimes, the leak is not in the pool liner or the pool itself but is part of the pool plumbing. The pool’s main drain can crack and require repairing, which can cause serious leaks. Most of the time, the leak is above the frost line, so the warmer your climate, the deeper the crack could be. This repair will likely cost between $400 and $700 unless the entire drain needs to be replaced. In this case, the costs will be closer to $4,000 - $7,000.
Pipes can cause leaks in swimming pools, especially if they are older and have been through a few seasons. They have starting repair costs of around $500 but can go much higher, depending on the pipe’s location.
If the crack in the pool is major, such as down to the beam, this is a serious problem that can be difficult and expensive to fix. It costs around $65 a linear foot to fix, and most people spend between $4,000 and $5,000 in total.
Equipment failure is the most common cause of leaks in most pools. If your pump is leaking, you will likely need to replace it at a cost of $2,100 to $3,000.
Above-ground pools are usually easier to diagnose and repair than in-ground pools. This is because the leak is often easier to see and reach. Most above-ground pool diagnostic fees are around $100 - $180, and patches can be purchased for leaking liners for about $20. If you need to replace the entire liner, this typically costs approximately $300. But keep in mind that gaskets and pumps may also be the problem.
If you have significant tearing in a vinyl pool liner, it probably needs replacing to stop the leaks. Vinyl liners only last around 7 years on average, so this is a common problem for vinyl pools. The cost to replace the liner is around $1,700 - $2,500 on average.
Sometimes, the cracks or leaks in a concrete pool are near or under the tile, which means you will have additional costs to replace them. This costs about $20 a linear foot to repair.
If you do not want to hire a professional to locate the leak, you can do the job yourself if you are willing to get wet. First, examine the pool and any likely areas. In a vinyl liner, this may look like a dark place that will not get cleaned with the vacuum. In a concrete or fiberglass pool, this can look like a crack. If you do not see any visible areas, focus on any penetrations in the pool, such as filters, pumps, and skimmers.
Once you identify the most likely places where the leak could be, get into the pool with a pair of goggles and a small bottle of food coloring. Squirt the food coloring next to the area where you suspect the leak. If this is the area, the food coloring should be sucked into the leak.
If you are unable to find the cause but are sure there is a leak, call in a professional because the leak may be in the plumbing or equipment.
Anything that penetrates the side of your pool could be the cause of a leak. This includes lights, filters, pumps, waterfalls, and diving boards. When checking for leaks, investigate all these features. In some cases, they may need to be replaced. This could cost anywhere from $100 - $1,000, depending on the issue.
There are many causes of pool leaks, which leads to a wide range of costs. The average cost to detect and repair a leak is $900.
Sometimes, pool leaks are covered. This depends on your policy and whether the leak could have been avoided with proper maintenance.
Yes, in nearly all cases, a pool leak can be fixed.
Signs of a leaking pool include a soggy ground around the pool and a rising water bill. If you suspect a leak, have a pool company come and investigate it.
Yes, if a leak goes on long enough to cause soil erosion around the pool, a sinkhole may result.
Pools lose an average of 2 inches of water a week naturally. In hot or dry weather, this could be more. It is also possible for a pool to leak, losing even more water.
Cost to repair a swimming pool leak varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.