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How Much Does Sump Pump Replacement Cost?

By Mike Holt, NJ Master Plumber · October 29, 2026 · 2 min read

4.9 from 174 Google reviews · NJ Master Plumber Lic. #36BI01345600

Sump pump in a basement pit

Replacing a sump pump in an existing pit is usually a straightforward job. The price goes up if the pit, check valve or discharge line also needs work, or if you add a battery backup pump. At Plumbing Doctor you get a flat price before work starts, after a $49 service call.

Repair or replace?

Sometimes the pump is fine and the problem is a stuck float switch or a failed check valve, which are cheaper fixes. If the motor is worn out, the pump hums without moving water, or it's more than 7 to 10 years old, replacement is the better call.

What changes the price?

  • The pump. Pumps differ in power and build. A basement that takes on a lot of water needs a stronger pump than one that sees water only in big storms.
  • Battery backup. A backup pump that runs when the power goes out adds to the cost, and it's the part that saves you during the storms that knock out power.
  • Check valve and discharge line. A new pump on an old, cracked discharge line or a failed check valve still leaves water in the basement, so these often get replaced together.
  • The pit. A pit that's too small, damaged or missing a proper cover takes more work.
  • Time of day. If the pump fails during a storm at night or on a weekend, the $250 after-hours fee applies.

Why not wait until it fails?

Because it will fail at the worst possible time: in a heavy storm, often with the power out. A flooded finished basement costs far more than a pump. Test yours each spring by pouring a bucket of water into the pit; the pump should start and empty it.

Is a battery backup worth it?

If your basement floods when the pump stops, yes. Storms that bring heavy rain to Central Jersey also bring power outages, and a main pump without power does nothing. A battery backup takes over automatically.

How Plumbing Doctor quotes

You get a flat price for the pump, any check valve or discharge work and the backup if you want one. It doesn't change once work starts, and it comes with 1 year on parts and labor. See sump pump repair and replacement or call 908-873-6686.

Need a licensed plumber?Mike gives you a flat price before any work starts. Book by 9 a.m. for same-day service.
Mike Holt
About the author

Michael Holt

Owner and operator of Plumbing Doctor, NJ Master Plumber (Lic. #36BI01345600) and U.S. military veteran.

More about Mike

Water on the floor right now?

Call. A licensed plumber answers day or night, talks you through stopping the water, and gets on the road.

908-873-6686

Nights, weekends and holidays: emergency visits are an extra $250, paid upfront. We tell you on the phone before we drive out.

Do this now

  1. Shut the main valve. Usually where the water line enters, near the meter.
  2. Kill power to anything wet, from the breaker panel, if you can reach it dry.
  3. Open a low faucet to drain the pipes and take pressure off the leak.
Google reviews

What neighbors say

4.9174 reviews

Mike works quickly and is transparent with pricing. He's trustworthy, reliable and brings his own shoe covers.

Naomi H.Google review★★★★★

Had backup and they came out in half hour on a Sunday and got the blockage resolved. They cleaned up after themselves. Very very professional people.

Richard F.Google review★★★★★

They tell me what is worth doing or not doing, and won't try to upcharge me. The work is always great. They are my go-to!

Hazim A.Google review★★★★★

Found my outdoor cleanout that was covered up for years and no other company could find! … They use drop cloths and clean up when they are done.

Kevin C.Google review★★★★★

Very knowledgeable, attention to detail, extremely neat and organized. We highly recommend Plumbing Doctor.

JoeGoogle review★★★★★

Read all 174 reviews on Google · Leave us a review

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