For sump pump and well pump repairs, you should hire a licensed professional. Keep in mind that not all plumbers have experience with these repairs. Here are the qualifications you should look for when hiring a professional to fix an issue with your pump:

• Sump pump repair: Most plumbers deal with piping issues and fixtures in the home, while a sump pump is part of your home’s waterproofing. Look for plumbers that specialize in sump pump repair, waterproofing or drainage systems.

• Well pump repair: Like sump pumps, well pumps are outside the purview of general plumbing repair. Contact a well services company to hire a technician who specializes in well pump repair near you.

The national average cost of sump pump repair is around $705,* with prices ranging from around $400 to $1,200,* according to Thumbtack data. The type of sump pump you have and the type of repairs needed will ultimately determine pricing. For example, readjusting a stuck float is usually a quick, inexpensive fix. However, some repairs (like a burnt-out motor) may actually require replacing the pump, which tends to be more costly. 

Thumbtack data also shows that well system repairs, which may include repairing the pump, cost around $990* on average in the US. However, repair costs can range from about $550 to $1,780.* The type of pump and the cost of parts are two factors that can impact the repair cost. For example, a new well pump pressure switch replacement is usually less expensive than a new well ejector. 

*Data on file at Thumbtack. For a personalized cost estimate, request a quote from a professional.

There are a few scenarios that could happen when a sump pump repair professional comes to your home to perform repairs. For example, they may be able to fix a sump pump by clearing debris in the discharge line or impeller. In other cases, the float, motor or check valve may need to be replaced. 

Sometimes, the easiest and most economical choice is to simply install a brand-new sump pump. Replacing your sump pump may require disconnecting the discharge line from the old pump and attaching it to the new one. 

Water well pumps are typically more complicated systems — and they can be more dangerous due to the amount of electricity that powers the pump. Depending on how deep the well is, special equipment may be required to pull the pump out for repair. In addition to the pump, components like the pressure tank or pressure switch may also need replacement. Depending on your location, an inspection may be required after the repair.

A pump repair professional can tell you what steps they’ll take to fix your sump pump or well pump. When your pro diagnoses your pump, ask them to walk you through the repair process so you’re prepared for their visit. 

There are several potential signs that your sump pump or water well pump may need repairs.

For sump pumps, look out for:

• Constant running or cycling

• Grinding or rattling noises

• Standing water in the basement or sump pit

• Pump not running while it rains

For well pumps, look out for: 

• Low or irregular water pressure

• Dirty or foul-smelling water

• Unusually high electric bill from constant running

• Sputtering or bubbly water coming from faucets

Remember, if your sump pump or well water pump stops working correctly, water might pool in your basement, foundation or crawlspace. This accumulated water might cause flooding, water damage or mold. Don't wait to address the issue — contact a local professional.

Sump pumps might fail if debris like leaves or dirt clogs the impeller or the discharge line. Electrical issues — such as a power outage, tripped breaker, malfunctioning receptacle or a problem with the sump pump motor itself — can also be potential culprits. Other common causes include a float that’s stuck or a pump that’s too small for the amount of water that needs to be discharged.

In a water well pump, debris can enter through damaged gravel screens and well caps, clogging the pump. Also, a well pump may not cycle on and off correctly if there’s a problem with the electrical components inside the pressure switch or with the air pressure inside the tank. 

These are just a few of the common reasons for sump pump and well pump failure. Hire a professional who can troubleshoot and diagnose your pump to identify the culprit. 

You might be able to handle simple sump pump repairs, such as dislodging a float stuck in the up or down position or unclogging a jammed impeller. However, it’s best to hire a licensed professional for more serious repairs or if your basement is already flooded. 

When attempting extensive sump pump repairs yourself, you run the risk of electric shock. Professionals have the training and expertise to get the job done safely. Hiring a pro also ensures the repair is error-free, preventing catastrophic water damage.

Well pump repair is almost always best left to the professionals. Well pumps are often 25 feet or more underground, and repairing them typically requires electrical and plumbing expertise. Local building codes may even prohibit unlicensed repairs by homeowners.