Straight answers from 300+ real San Antonio jobs. Updated July 2026.
Most San Antonio plumbing jobs run $99–$450. Drain clearing starts around $99, common repairs (toilets, faucets, burst pipe sections) land between $119 and $450, and water heater replacement runs $1,150–$1,900 installed. Emergency and after-hours work costs the same as daytime with flat-rate shops like ours.
Plumbing pricing confuses people because two models exist side by side. Hourly shops bill time plus materials, so the meter runs while they hunt for the problem. Flat-rate shops (us) diagnose first, quote the whole job, and the price can't grow after you approve it. Ask which model you're getting before anyone starts.
The numbers below are real ranges from our own San Antonio jobs over the last year. Your exact quote depends on access, parts, and how far gone the problem is, but if someone quotes far outside these ranges, ask why.
Common San Antonio jobs this covers
Drain clearing (single fixture)
Main sewer line clearing
Toilet repair / rebuild
Faucet replacement (supplied or yours)
Burst pipe repair (accessible)
Water heater repair
Water heater replacement (40–50 gal, to code)
Slab leak detection
Camera sewer inspection
Every job is quoted up front, free, before any work starts.
What affects the job
Access: a pipe behind drywall or under a slab costs more to reach than one in the garage
Parts on the truck: shops that stock common parts finish in one visit; a second trip usually means a second charge elsewhere
Code upgrades: water heater swaps legally require permit, expansion tank and proper venting in San Antonio; quotes that skip them aren't cheaper, they're incomplete
Time of day: hourly shops add 1.5–2x after hours; flat-rate shops like ours charge the same at 2am
Age of the system: one worn part in an old system often signals neighbors about to fail; good plumbers tell you, bad ones sell you piecemeal repairs
Common questions
Why do plumbers charge a service or trip fee?
It covers the truck roll and diagnosis. Ours is waived when you approve the repair, so you only ever pay it if you decline the quote.
Is a cheap $49 drain-cleaning ad legit?
It's a door-opener. The fine print covers one easy clog through an existing cleanout; anything real gets upsold on site. Our $99 price is the actual price for a single-fixture clog, and we say so in writing.
Can I supply my own parts to save money?
For fixtures (faucets, disposals), yes: we install customer-supplied units every week; the labor price is the same but the parts warranty is then the manufacturer's, not ours. For pressure and gas parts we supply, so the whole job is under our guarantee.
Get your free quote
Skip the guessing: call (210) 555-0134 or send the form and a San Antonio plumber will walk you through the job and confirm the scope, free.