How Much Does Pool Heater Repair Cost? [2026 Data]

In 2026, homeowners across the country pay a national average of $477 for pool heater repair, based on data from 1,403 verified projects reported by Angi Pros. Most homeowners spend between $166 and $799, with the spread driven by heater type, the nature of the problem, and local labor rates.

Pool Heater Repair Cost Breakdown: What Affects the Price?

Several factors influence the overall cost of repairing a pool heater, including the heater type, water chemistry, and necessary parts and labor.

Type of Pool Heater

The type of pool heater greatly affects the costs of repair. Electric pool heater costs are the highest at $200 to $1,200. In general, you can expect to pay the most for electric pool heater repairs and the least for solar, with natural gas heaters falling somewhere in between.

The following table breaks down repair cost ranges by pool heater type:

Saltwater vs. Chlorine Pools

Maintaining and repairing saltwater pool heaters can cost up to 50 percent more than chlorine pool heaters. A saltwater pool requires a saltwater-specific heater with corrosion-resistant parts. A non-saltwater heater installed in a saltwater pool will break down more often and may require replacement fairly quickly because of accumulated damage.

The following table compares repair costs by pool type:

Labor

Hiring a professional to handle pool heater repairs can cost an average of $80 to $120 per hour. Diagnosing issues on your own can be tricky, so it's often worthwhile to seek out the knowledge of a pro.

Materials

Replacement parts can cost anywhere from $20 to $600. The necessary parts (and prices) will vary based on the type of pool heater, as well as its make and model.

Warranties

Read through the heater's warranty because the services and labor covered can vary. The following table shows average warranty lengths by heater type:

Pool Heater Repair vs. Replacement 

On average, it costs $2,800 to replace a pool heater. However, the heater type, pool size, and climate all impact the final price. Installation expenses are lower for electric and gas heaters versus heat pumps and solar panels, which can cost several thousand dollars. You may also need to factor in the pool heater's predicted life span, as outlined below:

• Gas heaters: 5 years

• Electric heaters: 5–10 years

• Solar heaters: 20–25 years

Consider replacing the heater when yearly maintenance and repairs reach 50% of the cost of installing a new unit.

Electric Heat Pump Repair Costs: What to Expect

Your electric heat pump will often display error codes to tell you what's failing. You can also troubleshoot certain problems with your electric heat pump yourself. Here's what to do first:

• Ensure all valves are open and the water flow is sufficient

• Make sure the filter is clean

• Check electrical connections and see if the breaker got tripped

• Look around the heat pump for blockages around the coil, such as dirt, leaves, and debris

For other issues, replacement parts may be necessary. Keep in mind that these prices are for parts alone—hiring a professional to install them will cost around $80 to $120 per hour.

Replacement Capacitor 

If your heat pump won't turn on, you may need to replace the capacitor for around $20 to $75 . This could also be a tripped circuit breaker, so be sure to check this before purchasing a new capacitor.

Water Pressure Switch

A replacement water pressure switch could run you $20 to $50 . This part is often to blame if you get a "low water flow" error code when you know the pump receives enough water.

Refrigerant Issues

Your pool’s heat pump refrigeration components are one thing that you shouldn’t attempt to DIY. If you encounter an error code suggesting refrigerant issues, call a local pool heater repair technician.

Natural Gas Pool Heater Repair Costs: Parts and Labor

If you're having issues with your natural gas pool heater, start with some basic troubleshooting:

• Ensure the unit's power switch is on

• Check that the thermostat is set to the proper temperature

• Make sure the gas valves aren't shut off

• Clean out the skimmer baskets and pump pot if needed

If everything checks out, below are the costs to replace the most common faulty parts. Having a professional diagnose the problem and install the part will add an extra $80 to $120 per hour.

Flame Sensor

Replacing your gas pool heater's flame sensor will cost an average of $20 to $200 . If your pool heater turns on and shuts back off in a few seconds, this usually points to a bad flame sensor.

Gas Valve

Replacing a faulty gas valve could cost $175 to $600 or more. If your heater doesn't shut off once it reaches the target temperature, it could mean there's an issue with the gas valve. This can result in dangerously high water temperatures, so it's important to address it ASAP.

Pilot Generator/Thermopile

Getting a new pilot generator costs $60 to $140 on average. When this part fails, the whole circuit (including the pilot light) will go dark.

Pressure Switch

A new pressure switch for your gas pool heater could cost around $40 to $60 . If you know there's proper water flow in the system, but the heater still isn't working, this may point to an issue with the pressure switch.

Solar Pool Heater Repair Costs: Parts and Labor

One of the most important things you can do for your solar pool heater is to perform routine inspections. Debris and dirt tend to build up over time, which will inevitably cause problems with the heater. Aside from that, here's what to look for if you're experiencing issues:

• Leaking panels or plumbing

• Dirty or blocked solar collectors

• Dirty filters

• Worn seals or collector glazing

• Unplugged wires or tripped breakers

• Panel valves that aren't fully opened

Be sure to clean your collectors out regularly with warm, soapy water. For other issues, you may need these parts.

Pump Replacement

A new pump for your solar heater could cost anywhere from $200 to $500 . If you spot small bubbles in the pool when your solar heater isn't working, there might be an issue with the pump.

Check Valve

A new check valve typically costs $20 to $30. You may need to replace the check valve if you can hear water going through the system when it’s shut off.

Solar Pool Heater Repair Kit

For most structural issues with solar panels, you can purchase a repair kit for around $50 to $60. These contain a variety of plugs that can repair leaking riser tubes for a variety of models.

Pool Heater Repair Pro Costs: Why Hire One?

If you hire a pool heater repair pro near you , you'll spend between $80 and $120 per hour on labor and between $20 and $600 on materials. While labor rates may seem like a major investment, incorrectly repairing your pool heater can lead to extra costs and can also be dangerous.

Here’s why it’s ideal to hire a pool heater repair pro

Pool heater repairs can be complex, depending on the type of repair, so here’s why you should hire a pro:

• Some issues require expert-level troubleshooting to identify and repair.

• A pro can determine if you need to repair or replace the pool heater.

• It can take several days to repair complex pool heater problems.

• Pool heaters require electricity, which can be dangerous to work with if you’re not an experienced electrician. 

• Other pool heaters use gas connections, which should also be left in the hands of a skilled gas plumber. 

• Your pro can ensure a long-lasting repair that doesn’t void any warranties.

• DIY mistakes can cause your pool heater to break beyond repair, leading to costly replacement parts.

If you want to DIY a pool heater repair

If you want to help with the repair process, focus on easier tasks, like:

• Removing pool furniture and other obstructions

• Clearing debris and overgrown landscaping from the work area

• Checking the compatibility of any replacement parts

• Replacing the cartridge filter

• Cleaning the pump

Pool Heater Repair Additional Costs: What to Budget For

The pool heater might not be the only issue with the pool. Other pool repair costs you might undertake at the same time could include repairing or replacing filters, adjusting water chemistry, or replacing pool tiles.

The following table breaks down common pool heater repair add-on costs: 

Some issues, like a clogged strainer basket, require little more than cleaning the basket with a hose, which costs you nothing except some time and energy.

Extra Repairs 

Other pool repairs can include everything from detecting leaks and refilling the pool to beam repair and tile replacement. The price range is wide, so contacting a local pool repair service can be helpful if you’re unsure where the problem lies. 

Pool Cleaning or Maintenance 

One of the best ways to avoid costly repairs is to keep up with monthly pool cleaning and maintenance. The average pool costs $230 per year to maintain, with $110 to $350 being within the normal range. Costs rise during high-use months in the spring and summer and go down when not using the pool. You may also need to factor in occasional pool inspection costs to identify problems lurking where inexperienced eyes may not see them. 

However, how often you get the pool cleaned and the level of service you get can increase the price of yearly maintenance. Larger pools with more expensive heaters can also increase the yearly maintenance price. Of course, if you take a DIY approach, you may only need a professional cleaning or maintenance visit once a year. 

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We’ve surveyed thousands of real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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