Sump Pump Installation Cost in San Antonio (2026)
Average cost in San Antonio
US$800 — US$3,500
US$800 — US$3,500 per sq ft
Cost Breakdown
ItemizedLicensed plumber and excavation
45%
Submersible pump, basin, and PVC
35%
Dedicated GFCI outlet installation
12%
City of San Antonio plumbing permit
8%
Sales Tax at 6.25%
📋What's Included
ScopeTypically Includes
- Sump pump unit
- Sump pit (basin)
- Check valve
- Discharge pipe
- Labor & installation
Typically Excludes
- Battery backup system
- Exterior drainage tie-in
- Floor drain installation
- Waterproofing
- Electrical panel upgrade
Based on a standard 1/3 HP submersible sump pump with new pit.
🧮Estimate Your Cost
InteractiveEstimated Cost
US$1,056 — US$1,584
Based on 8 sources and market data for San Antonio. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
US$1,196
Today
US$1,250
Sump Pump Installation in San Antonio is ↑ 4.5% compared to roughly a year ago — about US$54 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Sump Pump Contractors in San Antonio
Verified providers1-Tom-Plumber
11549 Old Perrin Beitel Rd #202, San Antonio, TX 78217, USA
1,341 reviews
Mulder Plumbing Services
10927 Wye Dr #106, San Antonio, TX 78217, USA
124 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
Yes, the City of San Antonio requires a plumbing permit for sump pump installations, which starts at $64. If a new electrical circuit is required, an additional electrical permit (approx. $55) and inspection are mandatory.
San Antonio's expansive clay soil shifts significantly, which can increase costs by $200 to $500. Contractors often recommend reinforced basins and flexible discharge couplings to prevent the system from cracking during soil expansion and contraction.
San Antonio has some of the hardest water in the U.S., leading to mineral scale buildup on pump impellers and float switches. This typically reduces pump lifespan by 2-3 years unless annual descaling maintenance (costing $150-$250) is performed.
Given the frequency of spring thunderstorms and power outages in Bexar County, 70% of local pros recommend a battery backup. This adds $1,000 to $1,800 to the total project cost but prevents flooding when the primary pump loses power.
📊Our Methodology
How we collect dataAggregated from 8+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 3 days ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.