Contractors in Houston, TX

Plumbers in Houston charge $85–$175 per hour for labor, which is about 6% higher than the national average. A drain cleaning costs $100–$350, toilet installation runs $150–$400, faucet replacement is $100–$350, and a 40-gallon water heater installation ranges from $800–$1,800. Emergency after-hours calls in Houston add $200–$600 on top of labor rates. Sewer camera inspections cost $150–$400, while sewer line repairs vary widely from $1,500–$7,000 depending on the repair method and soil conditions.

Most plumbing work in Houston requires a permit from the City of Houston Development Services Department. Water heater installations, sewer line replacements, and new fixture installations all require permits before work begins. Minor repairs like fixing a leaky faucet or replacing a toilet flapper typically don't need permits. Licensed plumbers in Houston pull permits as part of their standard service — the permit cost is usually included in the job quote. Always verify permit requirements with your plumbing contractor before work starts.

Houston's hard water is the leading cause of low water pressure — mineral scale accumulates inside pipes and fixtures, restricting water flow over time. Aging galvanized steel pipes, common in Houston's older neighborhoods like the Heights and Montrose, corrode internally and reduce pressure. Other causes include mineral buildup at the aerator screen, a partially closed main water valve, leaks in your plumbing system, or water main breaks affecting your street. Slab leaks beneath your foundation—a common issue in Houston due to shrink-swell clay soils—can also cause pressure loss. A licensed plumber can perform a pressure test and inspect your lines to identify the exact cause.

A standard 40-gallon tank water heater installation in Houston takes 2–4 hours from start to finish, including permit paperwork if required by the City of Houston Development Services Department. Tankless water heater installation takes longer—typically 4–6 hours—because the system requires new gas lines, venting, and electrical work. Houston's hard water means your new tank heater should include a quality drain valve and flushing capability to extend lifespan and maintain efficiency. After installation, allow 1–2 hours for the water heater to reach temperature before using hot water.

Replace your water heater if it's older than 10–12 years, even if repairs are still possible—Houston's hard water accelerates tank corrosion and sediment buildup, shortening lifespan. If your heater is under 7 years old and the repair costs less than $500, repair is usually more cost-effective. For heaters between 7–10 years, compare repair cost to replacement: if repair exceeds 50% of a new unit's price ($800–$1,800 installed), replacement makes sense. Annual flushing in Houston helps remove hard-water sediment and can extend tank life by 2–3 years. Tankless models eliminate hard-water scaling issues but cost $1,500–$3,500 installed.

Houston homes built on concrete slabs over shrink-swell clay soils face high slab leak risk—watch for these warning signs: hot spots or warm areas on tile or wood floors, the sound of running water when all fixtures are off, unexplained spikes in your water bill (often 20–40% increases), wet or warped flooring, or cracks in your foundation or walls. Mold growth, musty odors, or pooling water in your yard are also red flags. Licensed plumbing professionals use acoustic detection equipment and thermal imaging to pinpoint slab leaks without breaking concrete. Early detection prevents costly foundation damage—get a sewer camera inspection ($150–$400) if you suspect a leak.

Yes—Houston Water offers a $75–$100 rebate for every WaterSense-certified toilet you install, helping offset the $150–$400 installation cost. CenterPoint Energy provides rebates for energy-efficient water heaters, reducing the $800–$1,800 installation price for tank models or $1,500–$3,500 for tankless units. WaterSense fixtures reduce water use by 20% or more without sacrificing performance. Check the Houston Water website (houstontx.gov) and CenterPoint Energy's website for current programs, eligibility requirements, and application deadlines. Many licensed plumbers in Houston are familiar with rebate programs and can help you apply.

Verify your plumber's license through the Texas State Board of Plumbing Examiners (TSBPE) at tsbpe.texas.gov—all Houston plumbers must hold a valid Texas license and carry at least $1 million in liability insurance plus workers' compensation. Legitimate plumbers pull building permits from the City of Houston Development Services Department as part of the job; if a contractor avoids permits, move on. Ask for references from recent Houston jobs and check Google reviews. ProvenQuote verifies state licenses before listing plumbing professionals in Houston, simplifying your search for a qualified contractor. Always get written quotes from at least three plumbers before deciding.