Pool Leak Detection & Repair

Pool Leak Detection in Wisconsin

Not Sure If Your Pool Is Leaking or Just Losing Water From Evaporation?

Most pools naturally lose about 1/8 to 1/4 inch of water per day due to evaporation, especially during warm or windy weather. However, if your pool is losing more water than that, it could indicate a hidden plumbing or structural leak.

Our technicians can perform professional pool leak detection testing to determine whether the water loss is normal or if your pool needs repair — helping you address the issue before it becomes a bigger problem.

Leak Prone Areas

Therapy Line Leak

Here we see broken fittings and pipes—one of the most difficult pool leaks to locate in Wisconsin.

Main Drain Leak

The main drain sits at the lowest point of the pool and can cause significant water loss if it develops a leak.

Inlet Pipes To Pool & Spa

These pipes can cause significant water loss and may only leak while the pool is running, often due to overlapping tree roots or poor plumbing workmanship.

Water Level Can Leak

Common causes of leaks at the water leveler can include age, the material of the can, and surrounding soil conditions.

Pool Light

Leaks can occur in the light niche itself, where the conduit enters, or around the area where the niche is mounted to the pool wall.

Structural Crack Leak

These leaks often go undetected for long periods because they do not always show visible signs.

Plumbing Line Leak

Because pools rely on extensive underground plumbing, every buried pipe is susceptible to leaks over time.

Skimmer Leak

Water loss can occur around the skimmer where it meets the pool surface, and the connecting pipes beneath the skimmer are also prone to leaks and breaks.

Broken Wall Return Fitting Leak

hese leaks are very common in pools and spas and can result in significant water loss.

Leaking Water Feature Line

Water features can leak in multiple areas, most commonly in the basins or in the piping that runs up through the feature.

Broken Pool Plumbing from Equipment

Sometimes the plumbing in, under, or around the pool isn’t the source of the issue—leaks in pool equipment can also lead to significant water loss.

What Is Leak Detection?

Pool leaks are often difficult to locate without specialized training and equipment. In many cases, leaks remain hidden beneath the pool surface, decking, or underground plumbing — slowly wasting water and causing damage over time.
Professional leak detection involves isolating sections of the pool and plumbing system to identify where water is escaping. By pressure testing individual lines, we can determine which areas are compromised. Once identified, we use advanced tools to precisely locate the source of the leak.
Our process may include acoustic listening equipment to detect escaping water underground, dye testing to identify cracks or gaps in pool surfaces and fittings, and tracer gas testing to locate leaks beneath concrete or soil. These methods allow us to find leaks that are not visible to the naked eye — even those several feet below ground.
Leak detection is a highly specialized service. At Lake Geneva Pool And Spa, we use advanced technology and proven techniques to accurately locate leaks while minimizing disruption to your pool, deck, and landscape. This precision helps reduce unnecessary demolition and limits restoration after repairs are completed.
With experience in pool leak detection, repair, and overall pool systems, our technicians understand how Wisconsin’s freeze/thaw cycles, soil movement, and winterization stress affect pools. When you choose Lake Geneva Pool And Spa, you can trust that your pool leak will be located accurately and repaired in the most efficient, minimally invasive way possible.

Benefits of Expert Leak Detection Services

Hiring a professional leak detection company offers significant advantages over trial-and-error repairs:

Accurate leak location without excessive damage
Reduced repair costs by fixing only what’s necessary
Protection from structural damage caused by prolonged leaks
Lower water bills and improved pool efficiency
Peace of mind knowing the problem is fully resolved

In Wisconsin, undetected leaks can worsen quickly as water erodes soil or freezes underground, making early detection especially important.

Pool Leak Detection Cost

The cost of professional pool leak detection depends on several factors, including the type of pool, where the leak may be located, and the amount of testing required.

Most residential pool leak detection visits typically range from $300 to $600.

During a leak detection visit, our technicians inspect the pool and equipment, pressure test plumbing lines, and perform dye testing around fittings, skimmers, and lights to locate the source of the leak.

What Can Affect Leak Detection Cost

Several factors can influence the time and testing required to locate a leak:

Size and type of pool
Whether the leak is in plumbing lines or the pool structure
Accessibility of equipment and plumbing
If multiple leak tests are required
Whether the pool includes attached spas or water features

Once the leak is located, we explain the repair options and provide an estimate before any repair work begins.

Common Signs You Have a Swimming Pool Leak

Knowing whether water loss is caused by evaporation or an actual leak isn’t always easy. If you own a pool in Wisconsin and notice unusual water loss, the signs below may indicate a leak that needs professional attention.

Below are a few signs that your pool may be leaking:

Your pool is losing more than ¼-inch of water per day

You notice cracks forming in or around the pool deck

You’re frequently refilling the pool to maintain the water level

The ground or grass around the pool remains wet or soggy

Your pool deck is lifting, sinking, or shifting

You see air bubbles or air entering the pump system

F A Q s

Have questions about pool leaks? You’re not alone. These are some of the most common questions Wisconsin pool owners ask.

What are some ways to tell that my pool might be leaking?

If your pool’s water level is dropping faster than normal evaporation, it may be leaking. Other signs include needing to add water frequently or noticing wet or soft spots around the pool, deck, or equipment area. Because freeze/thaw cycles in Wisconsin can cause hidden damage below the surface, leaks aren’t always easy to see. If you suspect a leak, Lake Geneva Pool And Spa can accurately locate the source and recommend the right repair.

Can a pool leak cause damage to my yard or deck?

Yes. Leaking water from underground lines or structural components can erode soil and create voids beneath decks or patios. In Wisconsin, freezing water underground can worsen this damage over time, leading to settling or cracking. Addressing leaks early helps prevent costly structural repairs and property damage.

What are some signs of a pool leak?

Common signs of a pool leak include:

Unusually high water usage or frequent refilling
Water collecting around the pool, deck, or equipment area
Soft, sinking, or eroding ground near the pool
Cracks in the pool surface, coping, or surrounding concrete
Reduced water flow or pressure from pool returns
Standing water in areas that normally stay dry

If you notice any of these signs, especially after winter or seasonal ground movement, it’s a good idea to have your pool professionally inspected before the damage worsens.

What Our Clients Say About Lake Geneva Pool And Spa

Areas We Serve

Lake Geneva Pool & Spa provides professional pool leak detection services for homeowners throughout Southeast Wisconsin. Our team is experienced in locating hidden leaks and helping pool owners protect their pools from water loss and structural damage.

We regularly service pools in the following areas:

Lake Geneva
Burlington
Elkhorn
Delavan
Williams Bay
Fontana
Genoa City
and other Walworth County communities.

Need An Expert Pool Leak Detection Company?

When it comes to maintaining your pool, experience and precision matter. Hidden pool leaks can lead to:

Deck settling or cracking
Structural damage to the pool shell
Soil erosion and voids
Expensive repairs if left untreated

Our trained technicians understand how Wisconsin’s climate affects pool systems and use proven techniques to locate and repair leaks efficiently. Whether the issue is minor or complex, we ensure every leak is properly identified and repaired before it causes further damage.

Related Services

If you’re unsure what’s causing the issue—or want to prevent future problems—these related services may help:

Pool Cleaning Services

Regular cleaning helps maintain water clarity and makes it easier to detect leaks early.

Pool Repair Services

From plumbing repairs to equipment fixes, professional pool repair services help keep your system running smoothly.