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Houston, TX
Licensed plumbing contractors for water heaters, leaks, drains, fixtures and repiping. Local labor in Houston runs about 4 percent below the national median, which is the adjustment to apply before you use any national price.
For gas odor, downed power lines, or flooding, call 911 or your utility emergency line first — not a contractor. After the immediate hazard is controlled, hire licensed pros for permanent repair.
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Claim your businessBy default, businesses appear in order of verification depth — what we were able to confirm and when — then by how long they have been operating. Distance is not used because we do not know where you are standing, and payment never changes this order. There is no paid placement, no boost, and no tie-break that favors an advertiser. Filters below reorder the same list on your device only; they do not create new pages or new URLs.
Use these controls to match your job. This is not a “best in Houston” ranking — it is the same sourced directory, filtered locally in your browser.
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Drain cleaning · Water heater replacement · Repiping · AC and heating
Checked 2026-03-01 against Texas State Board of Plumbing Examiners license search · source
National ranges adjusted by the Houston labor index. Materials move far less by region than labor does, so treat these as directional — the range narrows once someone has actually seen the job.
| Job | National typical | Houston typical | Range here |
|---|---|---|---|
| Water Heater Replacement | $1,800 | $1,700 | $875–$3,300 |
| Sewer Line Repair & Replacement | $7,000 | $6,700 | $1,400–$29,000 |
| Whole-House Repiping | $9,000 | $8,600 | $3,800–$17,500 |
| Water Softener Installation | $1,800 | $1,700 | $775–$3,400 |
| Well Pump Replacement | $1,800 | $1,700 | $775–$3,800 |
| Toilet Replacement | $350 | $325 | $200–$675 |
| Shower Valve & Cartridge Replacement | $500 | $475 | $200–$1,400 |
| Slab Leak Repair | $3,500 | $3,400 | $1,400–$7,700 |
| Sump Pump Installation | $2,000 | $1,900 | $950–$4,300 |
| Tankless Water Heater Conversion | $5,500 | $5,300 | $3,400–$8,600 |
| Drain Cleaning | $225 | $225 | $95–$425 |
| Hydro-Jetting | $650 | $625 | $325–$1,200 |
| Sewer Camera Inspection | $400 | $375 | $200–$775 |
| Leak Detection | $350 | $325 | $150–$875 |
| Faucet Replacement | $325 | $300 | $175–$625 |
| Garbage Disposal Replacement | $375 | $350 | $200–$575 |
| Main Shutoff Valve Replacement | $300 | $300 | $150–$575 |
| Pressure Regulator Replacement | $400 | $375 | $200–$725 |
| Water Line Replacement | $4,500 | $4,300 | $1,900–$9,600 |
| Sewer Line Replacement | $15,000 | $14,500 | $7,700–$29,000 |
| Gas Line Installation | $1,200 | $1,200 | $475–$3,400 |
| Bathtub Replacement | $3,500 | $3,400 | $1,400–$7,700 |
| Shower Pan Replacement | $2,500 | $2,400 | $950–$5,300 |
| Water Heater Repair | $350 | $325 | $150–$725 |
| Frozen Pipe Repair | $600 | $575 | $200–$2,400 |
| Outdoor Spigot Replacement | $275 | $275 | $150–$475 |
| Septic Tank Pumping | $400 | $375 | $250–$675 |
| Septic System Replacement | $18,000 | $17,500 | $9,600–$33,500 |
| Water Filtration Installation | $1,500 | $1,400 | $475–$3,800 |
| Well Pressure Tank Replacement | $750 | $725 | $375–$1,300 |
| Backflow Preventer Installation | $400 | $375 | $200–$875 |
| Bidet Installation | $500 | $475 | $250–$1,200 |
| Washing Machine Hookup | $350 | $325 | $150–$775 |
| Pipe Insulation | $450 | $425 | $200–$1,200 |
| Bathroom Remodel | $15,000 | $14,500 | $5,800–$38,500 |
| Basement Waterproofing | $7,000 | $6,700 | $2,900–$14,500 |
| Sprinkler System Installation | $4,500 | $4,300 | $2,700–$10,500 |
| French Drain Installation | $5,000 | $4,800 | $2,100–$15,500 |
| Yard Drainage Correction | $4,000 | $3,800 | $1,700–$13,500 |
| Dishwasher Installation | $375 | $350 | $200–$900 |
| Washer and Dryer Installation | $400 | $375 | $175–$1,200 |
| Crawlspace Encapsulation | $10,000 | $9,600 | $5,300–$25,000 |
| Water Damage Restoration | $5,500 | $5,300 | $2,100–$25,000 |
| Radon Mitigation | $1,600 | $1,500 | $875–$4,000 |
| Crawl Space Vapor Barrier | $3,200 | $3,100 | $1,500–$8,200 |
| Sewage Cleanup | $5,000 | $4,800 | $2,100–$16,500 |
How these numbers are derived
Checked against the issuing authority on 2026-10-06. Fees and thresholds change — the link below is the authority, this page is not.
Online via iPS (iPermits) portal or in person at 1002 Washington Ave. Trade permits (electrical, plumbing, HVAC) require a state-licensed contractor registered with the city.
| Permit | Published fee | Notes |
|---|---|---|
| Minimum Residential Permit Fee | $85.00 base + $30.22 admin fee | City of Houston Building Code Fee Schedule for basic repairs or single-trade residential scope. |
| Residential Electrical Permit | $75.00 base + $10.50 per circuit | Plus standard administration fee; panel replacements billed based on total service amperage. |
| Water Heater Permit Fee | $65.00 - $85.00 | Base plumbing permit fee including initial and final inspection fees. |
| HVAC Unit Changeout Permit | $80.00 base + $15.00 per unit | Covers mechanical equipment replacement and required system leak/duct performance checks. |
Cities adopt the model codes then amend them. The amendments are what catch people out, because a national guide will not mention them.
Requires finished floor elevation and mechanical/electrical equipment to be elevated a minimum of 24 inches above the 500-year base flood elevation (BFE).
Read the amendmentMandates arc-fault circuit interrupter (AFCI) protection on all 15A and 20A branch circuits during residential remodels, with strict conduit fill and temperature derating rules.
Read the amendmentRequires expansion tanks on all closed-loop water heating installations and backflow prevention assemblies on all irrigation supply lines.
Read the amendmentMaster & Journeyman Electricians, Electrical Contractors
Public licence lookupMaster Plumbers, Journeyman Plumbers, Plumbing Contractors
Public licence lookupClass A & Class B Air Conditioning Contractors
Public licence lookupProfessional Engineers (PE) for structural and windstorm sign-off
Public licence lookupPermit rules, fees, and housing-stock conditions change by city even within the same state. These facts come from the researched metro profile — not from a template with the city name swapped in.
City of Houston Permitting Center · Filing information · (832) 394-8841
Nearly every state licenses journeyman and master plumbers; gas fitting is often a separate endorsement. Search the number in the state's public lookup, confirm it is active, and confirm the classification covers your job rather than something adjacent to it.
Ask for general liability and workers' compensation to be sent to you directly by the insurance agent. A PDF forwarded by the contractor proves the document existed once, not that the policy is current.
What is included matters less than what is excluded. Permits, disposal, patching, and code upgrades triggered by the work are the four line items that most often turn into change orders.
Permit thresholds are municipal in Texas. The licence holder should pull it. If you are asked to pull it as a homeowner on licensed work, you are absorbing their liability.
A deposit for materials on a large job is normal. Paying in full before work begins is not, and several states cap what a contractor may take as a deposit.