How We Repair Your Grundfos Booster Pump
Sump, well, booster and sewage ejector pumps and septic aerators keep water moving, and most failures happen when you need them most.
Every Grundfos model has its own parts list, so we start with the model and serial number on the rating label. That tells us the correct parts and any known issues or service bulletins for your unit.
Common Booster Pump Problems We Fix
Alarm sounding
High water level, a failed pump or float.
Pump will not run
A stuck float switch, a tripped breaker, a failed capacitor or a burned-out motor.
Runs constantly
A stuck float, a failed check valve letting water flow back, or a leak in the system.
Short cycling (well pumps)
A waterlogged pressure tank or a bad pressure switch.
Loud noise or vibration
Worn bearings, debris in the impeller or a broken check valve.
Quick Checks Before You Call
These are safe for most owners and sometimes solve the problem without a visit:
- Check the breaker and GFCI outlet
- Make sure the float moves freely
- Listen for the pump starting when you pour water into the pit
Still not working? Call (844) 442-1500 or try our troubleshooting wizard.
Our 5-Step Repair Process
- Call or book onlineTell us what your Grundfos booster pump is doing and when it started. We schedule the first available visit.
- DiagnosisThe technician checks power, controls and the parts most likely to fail, using the model's service data and test modes.
- Upfront quoteYou get the cause, the repair and the price before any work starts. If repair does not make sense, we tell you.
- RepairWe install original or equivalent parts matched to your model and clean up when we are done.
- Test and warrantyWe run the appliance through a full cycle to confirm the fix. The repair is covered by our 90-day parts and labor warranty.
Parts We Replace Most Often
- Float switches
- Check valves
- Pressure switches and tanks
- Capacitors
- Impellers
- Pump motors
Cost and Lifespan
Most booster pump repairs cost $150–$700 including parts and labor, and these appliances typically last 7–15 years. These are national estimates: your exact price comes after the diagnosis. Use the repair vs replace calculator to compare.
Keep It Running Longer
- Test sump pumps before the rainy season
- Have well pressure tanks checked yearly
- Keep pits clear of debris
Booster Pump Repair in New Jersey
We repair booster pumps in 444 cities and towns across New Jersey. Humid summers and long, cold winters in New Jersey give homes across the state appliances a busy year, with heavy indoor use from fall to spring. Near the coast, salt air speeds up corrosion on outdoor equipment, so we inspect connections and housings for rust.
Frequently Asked Questions
How much does Grundfos Booster Pump Repair cost in New Jersey?
Most booster pump repairs fall between $150–$700 including parts and labor. The final price depends on the part that failed and your model. You get an exact quote after the diagnosis and before any work starts.
Can you repair my booster pump today?
Same-day visits depend on technician availability in New Jersey. Call (844) 442-1500 early in the day for the best chance of a same-day or next-day appointment.
Is the repair guaranteed?
Yes. Parts and labor are covered by our 90-day warranty. If the same problem comes back within that time, we return and fix it.
Do you work on all Grundfos models?
We repair current and older Grundfos models. Some discontinued parts can be hard to find; if that is the case for your model, we tell you before you pay for a repair.
Should I repair or replace my booster pump?
A booster pump typically lasts about 7 to 15 years. If yours is well inside that range and the repair costs less than half the price of a new one, repairing usually makes sense. Near the end of its life, or when the repair costs more than half of a replacement, replacing is often the better value. We give you an honest opinion either way.