The range
$500–$800 for a clean swap. $3,100–$5,200 for a new system before optional backup.
$500–$800
Clean swap: existing pit, lid, and discharge remain serviceable
$3,100–$5,200
New system: pit, lid, Zoeller primary pump, and discharge
$1,500–$2,500
Optional Spin 508 + approved AGM backup, priced separately
Key takeaway
Pumps are the simplest piece to price because the variables are limited. The cost variation comes from what is around the pump: an existing functional pit versus needing a new one, the discharge condition, whether you want a backup, and what kind.
What the $500–$800 clean-swap range buys
A clean pump swap. Your existing pit, lid, and discharge are all in good shape. We install the approved American-made Zoeller primary pump named in the proposal, a new check valve as scoped, and run a test cycle. Manufacturer product coverage and WPNE installation-workmanship coverage are stated separately.
What the $3,100–$5,200 new-system range buys
Brand-new sump from scratch. We cut concrete, dig the pit, install a lined basin, drill and plumb the new discharge, and install the approved American-made Zoeller primary pump. The optional Spin 508 and approved AGM battery are not included in this range and are priced separately when selected.
Three scenarios
Which scenario do you have.
- Scenario A. Replace the existing primary pump only. Your pit, lid, and discharge remain serviceable. We install the job-selected American-made Zoeller primary pump, a check valve as scoped, and run a test cycle. Planning range: $500–$800.
- Scenario B. Replace the primary and explicitly add backup. Start with Scenario A, then add a Zoeller Aquanot Spin 508 and approved AGM only when selected. Backup planning range: an additional $1,500–$2,500.
- Scenario C. New pit, new pump, new discharge. You do not have a sump pit, or the existing one cannot remain. We cut concrete, dig the pit, install the basin and lid, and plumb the discharge. Planning range: $3,100–$5,200 before optional backup.
Key takeaway
The assessment determines the base package. Backup is always a separate customer choice; it is never silently bundled into a primary-pump or new-system price.
Price drivers
What moves the number.
- Pump grade. A box-store 1/3 HP pump and a contractor-grade Zoeller M53 are different products. We do not install box-store pumps because the failure rate is too high to back with a warranty. Contractor-grade adds a couple hundred dollars and lasts roughly twice as long.
- Basin condition. A serviceable existing basin may remain. A corroded, undersized, or badly located basin needs rebuilding; the current planning allowance is $1,500–$2,500.
- Discharge complexity. Vinyl flex through the rim joist is the easy case. Cutting block, running through finished space, or rebuilding a frozen-prone exit are scope additions.
- Backup type. Battery vs water-powered vs combo. Each has trade-offs. See the next section.
- Electrical. Sump pumps need their own dedicated circuit and a GFCI outlet. If yours is on a shared circuit or improperly grounded, an electrician sub may be needed.
Backup options
Backup options and what they actually cost you.
| Battery backup | Water-powered backup | |
|---|---|---|
| Up-front cost | $1,500–$2,500 for WPNE's optional Spin 508 + approved AGM | Not a standard WPNE offering; requires separate site-specific plumbing review |
| Ongoing cost | Battery replacement every 4-5 years ($200-$400) | Uses city water during operation, no battery |
| Run time | Hours, limited by battery capacity | Indefinite, as long as you have city water pressure |
| Failure mode | Dead battery if not maintained | Loss of city water pressure during emergency |
| Best for | Most homes, simpler install | Multi-day power outages, second homes |
See our full comparison of battery vs water-powered backup pumps. For most Twin Cities homes on city water, battery is the right call. For homes on well water, battery is the only option.
What is included
What a real sump pump quote covers.
What we do
- •Old pump removal and disposal.
- •Pump install with manufacturer mounting hardware, properly sized to flow.
- •New check valve. Critical. The old one is almost always failed.
- •Discharge line inspection all the way to exit, any repairs needed are flagged before work.
- •Test cycle, fill bucket, watch pump cycle, verify discharge clears.
- •Sealed lid on the basin (radon-rated, reduces basement humidity).
- •Backup install if part of scope, alarm tested, battery charged.
- •Installation-workmanship coverage, written in the signed proposal for the exact installed scope.
What we don't
- •Electrical panel work or new dedicated circuit installation (sub-trade, separate quote).
- •Frozen or collapsed discharge line repair (flagged, quoted separately).
- •Drain tile or interior perimeter drainage (different scope, see drain tile pricing).
- •Mold remediation in finished areas (sub-trade if needed).
- •Generator installation (sub-trade).
Warnings
Quotes that look too cheap.
A $400 sump pump “install” is the box-store pump that fails in 3 years. The labor to replace it costs more than the difference up front.
Watch for
- Quote does not specify pump make and HP rating
- Check valve replacement listed as optional add-on (it should be automatic)
- Battery backup priced under $400 (no real backup that cheap holds up)
- No warranty on the pump itself separate from workmanship warranty
- Vague “dewatering” or “evacuation” line items that don't specify what is installed
For a deeper dive on pump selection for Minnesota conditions, see our sump pump buyers guide.