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Sump Pump Repair & Installation in Littleton, CO

Your sump pump is the last line of defense against a flooded basement — and it usually fails at the worst possible moment, during spring snowmelt or a heavy summer storm. We repair, replace and install sump pumps across Littleton, and we test them before you need them.

  • Licensed & insured Colorado plumbing contractor
  • 60–90 minutes across Littleton & Arapahoe County response
  • Up-front, written pricing
Newly installed sump pump in a Littleton, CO basement

Homes on Littleton’s expansive-clay and low-lying lots see real groundwater pressure when the snow melts. A pump that is undersized, worn, or has a stuck float will not keep up. We size the system to your conditions and add battery backup so a power outage during a storm does not mean a flooded basement.

Sump Pumps being performed by a plumber in a Littleton, CO home
  • Repair, replacement and new installs
  • Battery-backup and high-water alarms
  • Pre-snowmelt testing and maintenance
  • Sizing matched to your water table

Signs Your Sump Pump Needs Service

  • The pump runs constantly or cycles on and off rapidly
  • It makes grinding, rattling or unusual noises
  • Visible rust, or water that smells musty in the pit
  • The pump does not turn on when the pit fills
  • The basement has flooded before during snowmelt or storms
  • The unit is more than 7–10 years old with no backup

Ready to book sump pumps?

Same-day service — 60–90 minutes across Littleton & Arapahoe County.

Call (831) 290-4327

Repair, Replace, and Back Up

We diagnose a failed switch, a stuck float, a seized motor or a clogged intake and repair what we can. When a pump is worn out, we replace it with a properly sized unit and test the check valve and discharge line. Most importantly, we can add a battery backup pump and a high-water alarm so you are protected even when the power goes out during a storm.

Ready Before the Snow Melts

The best time to service a sump pump is before you need it. We test the pump and float, clean the pit, verify the discharge routes water safely away from the foundation, and confirm the backup is ready — so the first big snowmelt is not the first test of the season.

What a Sump Pump Service Includes

Whether we are repairing, replacing or installing, we treat the whole system — pump, float, check valve, discharge and backup — not just the part that failed. On a replacement we size the pump to your pit and water table, test the discharge routes water well away from the foundation, and can add a battery backup and high-water alarm so a storm-night outage does not flood the basement.

  • Diagnosis of the pump, float switch, check valve and discharge line
  • A correctly sized replacement pump when yours is worn out
  • Battery backup and high-water alarm installation on request
  • Discharge routed to move water safely away from the foundation
  • A full test cycle before we consider the job done

Our Sump Pump Process, Step by Step

The best time to find a sump-pump problem is before the snow melts, not during. Here is how we work.

  • 1. Test — run the pump and float and check the check valve and discharge
  • 2. Diagnose — repair a stuck float or seized motor, or recommend replacement
  • 3. Size — match a new pump to your pit and typical water volume
  • 4. Protect — add a battery backup and alarm where a flood would be costly
  • 5. Verify — cycle the system and confirm it clears the pit and stays dry

Why Littleton Homeowners Choose Us for Sump Pumps

Sump pumps fail on the worst night of the year — during spring snowmelt or a summer storm that also knocks out the power. Fifteen years on Littleton’s clay-soil and low-lying lots taught us to size for the real water load and to push battery backup where it matters, so the first big melt is not the first test.

  • 15+ years installing and servicing sump systems in the Littleton area
  • Battery-backup expertise for storm-night power outages
  • Licensed & insured, with pre-snowmelt testing available
  • Up-front pricing and 480+ satisfied local customers

What Affects Sump Pump Pricing

  • Repair vs. full replacement
  • Pump horsepower and capacity for your water table
  • Primary-only vs. battery-backup system
  • Check valve, discharge line and pit condition
  • Adding a high-water alarm or new pit

Sump Pumps Across the Littleton Area

We provide sump pump repair & installation throughout Littleton, Arapahoe County and the surrounding Denver metro, including:

Licensed, insured & verifiable

Littleton Plumbing Pros is a fully licensed and insured Colorado plumbing contractor. Confirm any Colorado plumbing credential through the Colorado DORA plumbing license lookup.

Reviewed by our licensed Colorado plumbing team · Last updated September 2026

(831) 290-4327

FAQ

Sump Pumps FAQs

Most sump pumps last 7–10 years. If yours is in that range, runs constantly, makes noise, or has ever failed to keep up, replace it before the next snowmelt rather than after a flood. We can test it and give you an honest assessment.

Helpful Reading

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Need Sump Pumps in Littleton?

Call Littleton Plumbing Pros for fast, licensed service and honest pricing.

  • Licensed & insured Colorado plumbing contractor
  • 24/7 Emergency Service
  • 480+ Happy Customers
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