The short answer
A licensed plumber in Dallas-Fort Worth usually charges $40 to $125 an hour, plus a trip or service fee in the same range. Clearing a drain runs about $85 to $230, a faucet swap $100 to $250, and a new toilet $295 to $670 with labor. Slab leaks, water heaters and sewer lines cost more, and replacing a water heater in Dallas needs a city permit.
North Texas is one of the cheaper big metros for construction labor. The U.S. Army Corps of Engineers Area Cost Factors put Fort Worth at 0.84 against a national average of 1.00, and the ranges on this page use that figure. Rates still climb on nights, weekends and during freezes, when every plumber in the region is booked.
If you hear water running when every faucet is off, or a spot on the floor feels warm, you may have a slab leak. Turn off the main valve, usually in a box near the street or at the meter, and call a plumber before the water reaches the foundation.
Plumbing prices in Dallas-Fort Worth
The table covers labor and standard parts for a typical house in the metro. We start from national cost data, apply the DFW cost factor, and compare the result with local price guides.
| Job | Dallas–Fort Worth (typical range) | US average |
|---|---|---|
| Hourly rate (licensed plumber) | $38–$125/hr | $45–$150/hr |
| Service call / trip fee | $42–$125 | $50–$150 |
| Clear a clogged drain | $84–$230 | $100–$275 |
| Install a faucet | $100–$250 | $120–$300 |
| Install a toilet | $295–$670 | $350–$800 |
| Find and fix a leak | $125–$545 | $150–$650 |
| Burst pipe repair | $420–$4,200 | $500–$5,000 |
| Sewer line repair | $420–$3,200 | $500–$3,800 |
| Gas line repair or install | $295–$1,700 | $350–$2,000 |
| Water heater, 50-gal tank, installed | $590–$2,600 | $700–$3,100 |
| Tankless water heater (gas), installed | $1,750–$4,700 | $2,100–$5,600 |
| Whole-house repipe | $3,350–$13,450 | $4,000–$16,000 |
Estimates for 2026, including labor and standard parts. Dallas–Fort Worth prices use the metro's construction cost factor of 0.84 (US average = 1.00) from the U.S. Army Corps of Engineers Area Cost Factors. Your quote depends on access, materials and the condition of the home.
Slab work is where Dallas bills get large. Finding a leak under the foundation usually takes electronic leak detection first. Then the plumber either breaks through the slab to fix the spot, tunnels under the house, or reroutes the line through the attic or walls so it no longer runs under the concrete. Rerouting costs more up front, but it moves the pipe away from the soil that caused the problem.
For a price on your own job, the calculator below applies the rate for your ZIP code.
Why North Texas houses get slab leaks
Most of Dallas-Fort Worth is built on Blackland Prairie clay, a soil rich in minerals that swell when they get wet and shrink when they dry out. A wet spring followed by a 100-degree summer can move the ground under a house by a surprising amount. Almost every home in the metro sits on a concrete slab, and the water and drain lines run underneath it.
As the slab flexes, the pipes under it take the strain. Copper supply lines develop pinhole and stress leaks. Cast iron drain lines in older homes crack at the joints, and PVC lines in newer homes can pull apart at fittings. Once a pipe leaks under the slab, the water soaks one patch of clay, which swells or washes out and makes the foundation move even more. That is why plumbers and foundation companies in DFW often end up working the same jobs.
Signs to watch for:
- A water bill that jumps without a reason
- The sound of running water with everything turned off
- A warm spot on a tile or wood floor, which points to a hot water line
- New cracks in drywall or tile, or doors that start sticking
- Damp carpet or a musty smell near an interior wall
Keeping the soil around the foundation evenly moist during long dry spells helps limit the movement. Many North Texas homeowners run soaker hoses along the foundation in summer for that reason.
Water heaters in the attic
Plenty of DFW houses put the water heater in the attic or a garage closet to save floor space. An attic install has to meet extra rules in the Texas plumbing code. The heater needs a drain pan at least 1.5 inches deep, and the pan's drain line, at least 3/4 inch wide, has to run to the outside of the house or to an approved drain. A pan with no drain, or a drain line that ends in the attic, only delays the damage when the tank finally leaks.
Attic heaters also take more time to replace. Getting a 50-gallon tank up a pull-down ladder is a two-person job, which is part of why attic swaps sit at the upper end of the price range. A 50-gallon tank replacement in the metro costs about $590 to $2,600 installed, and a gas tankless unit about $1,750 to $4,700. Some owners use a replacement as the chance to move the heater out of the attic altogether.
Dallas water is moderately hard. Dallas Water Utilities reports an average of 8.9 grains per gallon, and Fort Worth runs about 6 to 10. That is enough to leave sediment in tank water heaters, so flushing the tank once a year helps it last.
Freezes and burst pipes
Texas homes are built for heat, and pipes often run through attics and exterior walls with little insulation. During Winter Storm Uri in February 2021, Dallas spent 139 straight hours below freezing. State Farm alone paid $343 million in Texas frozen-pipe claims that year.
Before a hard freeze:
- Wrap exposed pipes and hose bibs, including the ones in the attic
- Open cabinet doors under sinks on outside walls
- Let faucets drip on the coldest nights
- Know where your main shutoff is and make sure it turns
After a freeze, check for leaks as things thaw. A split pipe often doesn't leak until the ice inside melts.
License and permit rules in Texas
The state license
In Texas, plumbers are licensed by the state, through the Texas State Board of Plumbing Examiners. A journeyman can do the work; a master plumber can run a plumbing business and is responsible for it. You can look up any license on the board's website before you hire.
Texas has a homestead exemption. If you own and live in the house as your primary residence, you can do your own plumbing without a license. It does not cover rental houses or second homes, and it does not let you hire an unlicensed friend to do the work for you. Permits and inspections still apply.
City permits
The City of Dallas exempts many like-for-like repairs from permits, but replacing a water heater or a boiler needs one. City guidance puts the minimum plumbing permit fee at $100, and some alteration permits cost more. Your plumber normally pulls the permit and schedules the inspection, which checks the venting, gas connection, relief valve line and drain pan.
Fort Worth, Plano, Frisco, Arlington and the other cities in the metro run their own permit offices with their own fees. The work is inspected to similar standards, but check with your city before work starts.
Sewer lines: who pays
In Dallas, the city's position is that the lateral water and sewer lines belong to the homeowner. If roots get into the clay or cast iron sewer line under your yard, or the line sags as the soil moves, the repair is yours to pay for. The city maintains the main in the street.
A camera inspection, which runs a small camera through the line, shows the problem before anyone digs. It is worth doing before you buy an older house, especially in neighborhoods with large trees.
Typical jobs and timing
| Job | Usual time | Notes for DFW |
|---|---|---|
| Clogged drain | 1 to 2 hours | Repeat clogs in older homes often mean a sagging or broken line |
| Faucet or toilet install | 1 to 3 hours | Usually same day |
| Slab leak detection | 2 to 4 hours | Electronic detection before any concrete is cut |
| Slab leak repair or reroute | 1 to 3 days | Repair in place, tunnel, or reroute through the attic |
| Water heater replacement | 3 to 6 hours | Dallas permit; attic installs need a working drain pan |
| Frozen or burst pipe | 2 to 8 hours | After a freeze, expect waits of a day or more |
| Sewer line repair | 1 to 3 days | Camera first; trenchless options when the line allows |
How to hire well in North Texas
- Ask for the plumber's Texas license number and check it on the State Board of Plumbing Examiners site.
- For slab leaks, ask whether they did electronic leak detection, and what they recommend: repair in place, tunnel or reroute, and why.
- Get the price in writing, with the permit listed as its own line.
- For attic water heaters, confirm the price includes a new pan and a drain line that runs outside.
- Don't pay everything up front.
Every plumber in the GOLDGCP network passes a license check, insurance verification, a background check and reference calls before getting a job, and you pay in milestones as the work gets done.
Areas we cover
GOLDGCP plumbers work across the Dallas-Fort Worth metro, including:
- Dallas
- Fort Worth
- Plano
- Arlington
- Irving
- Frisco
- McKinney
- Denton
- The suburbs between them
If your city isn't listed, call and we'll tell you whether a plumber in our network covers it.
How GOLDGCP works
- Send us the problem through the form, a call or WhatsApp.
- We match you with a vetted, licensed plumber near you and send a written estimate.
- The plumber pulls the permit if one is needed and does the work.
- You pay in milestones, and the final payment goes out after the job passes inspection.
Frequently asked questions
How much does a plumber cost in Dallas?
Usually $40 to $125 an hour plus a service fee, during business hours. Small repairs like a clogged drain or a faucet run about $85 to $250. Night and weekend calls cost more, and prices rise sharply during freezes.
How much does a slab leak repair cost in Dallas?
It depends on how the leak is fixed. A single spot repair through the slab costs far less than tunneling or rerouting the whole line, but rerouting moves the pipe out of the shifting clay for good. Get electronic leak detection first, then compare a written price for each option.
Do I need a permit to replace a water heater in Dallas?
Yes. The City of Dallas requires a permit to replace a water heater, even with the same model. The minimum plumbing permit fee is about $100. Your plumber should pull it and arrange the inspection.
Can I do my own plumbing in Texas?
Only in your own homestead, meaning the home you own and live in as your primary residence. That exemption doesn't cover rentals or second homes, and you can't hire someone unlicensed under it. Permits still apply.
Why does my water heater need a drain pan?
Texas code requires one wherever a leak would damage the house, which includes every attic install. The pan has to be at least 1.5 inches deep with a drain line of at least 3/4 inch that runs outside or to an approved drain.
Is Dallas water hard?
Moderately. Dallas Water Utilities reports an average of 8.9 grains per gallon, and Fort Worth is about 6 to 10. That leaves sediment in water heaters over time, so flush the tank every year.
Who pays to fix the sewer line to my house in Dallas?
The homeowner. The City of Dallas treats the lateral sewer and water lines as the owner's responsibility and maintains only the main in the street.
How we calculate these prices
GOLDGCP starts from national price ranges for each job, taken from published 2026 cost guides and checked against local price guides where they exist. To get a local price, we multiply the national range by the construction cost factor for the metro from the U.S. Army Corps of Engineers Area Cost Factors (US average = 1.00). For ZIP codes outside the 50 largest metros, the calculator uses the state's price level from the Bureau of Economic Analysis Regional Price Parities. Ranges include labor and standard materials but not unusual site conditions, so a written quote after an inspection is always the final price.
Sources
- How much does a plumber cost? · HomeGuide
- How to get a plumbing permit · City of Dallas
- Plumbing License Law · Texas State Board of Plumbing Examiners
- Texas plumbing code, chapter 5: water heaters · UpCodes
- More than one million in Texas lack drinking water after winter storm · The Texas Tribune
- Water and sewer line warranty programs · City of Dallas
- Area Cost Factors, PAX Newsletter 3.2.1 (2024) · U.S. Army Corps of Engineers
- Regional Price Parities by State · U.S. Bureau of Economic Analysis
About this guide
Written by the GOLDGCP editorial team. Prices come from national cost guides adjusted with official construction cost factors for Dallas–Fort Worth; rules and statistics come from the agencies and reports linked in the text. We update this page when prices or codes change.