TSBPE-licensed plumbers serving Carrollton since 1995, with in-house excavation crews and a one-year labor guarantee.
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Swapping a water heater in Carrollton is not a Saturday project. The city requires a permit for every water heater installed, spells out a dozen conditions the finished job has to meet, and sends an inspector to look at it. Herndon McFarland Plumbing has worked under those rules since 1995, with over 150 years of combined experience across the team and technicians licensed by the Texas State Board of Plumbing Examiners.
Book your service online with Herndon McFarland Plumbing today.
Carrollton work tends to split between permitted replacements and buried lines that nobody can see. We handle both ends without bringing in another company.
Every job on that list is carried out by our own licensed technicians, which is why we can stand behind the labor in writing.
The City of Carrollton water heater requirements state that a permit is required for the installation of all water heaters, and that anyone other than the homeowner doing the work on a homestead must be a licensed plumber registered as a contractor with the city. Then the city lists what the finished installation has to look like.
Several of those items catch people out. Every water heater needs a thermal expansion tank on the cold water line. It needs an isolation valve on that same cold line so the heater can be shut down without killing water to the rest of the house. It needs a pan at least 1 1/2 inches deep with a 3/4 inch drain line running outside or to an approved receptor. The temperature and pressure relief discharge pipe must terminate outside, no more than 2 feet and no less than 6 inches above the ground or floor. Heaters in garages or attics need their water piping insulated. There has to be a cold water ground wire and clamp ahead of the shutoff, and unions on the inlet, outlet, and relief lines.
Gas units add a second list: upper and lower combustion air when the heater sits in a closet, 1 inch of clearance between the vent and any combustible material, a ball valve gas stop that shuts by hand, a flex gas connector no longer than 36 inches, and a carbon monoxide alarm outside each sleeping area.
None of that is exotic for a plumber who works here weekly. It is exactly what gets missed by an installer following a national checklist, and the result is a homeowner with a new heater and a failed inspection.
Under slab plumbing repairs are permitted separately in Carrollton, and the plumber has to supply a letter covering the excavation and the backfill. Our excavation crews are in-house, so that letter comes from the same company that dug the hole.
Rust-Colored Water at the Hot Tap Only
The tank lining is going, and the anode rod has likely been spent for a while.
Popping or Rumbling While It Heats
Sediment has built up on the bottom and the burner is firing through it.
Water in the Pan
The pan is doing its job. The heater is not.
Hot Water That Runs Out Sooner Than It Used To
Sediment takes up volume the tank was sized to hold.
Homeowners here tend to call us after a job somebody else could not finish or could not get signed off.
We tell you what we found, what it will take, and what we recommend, then we do that work and nothing you did not agree to.
A repair is not done when the tool bag closes. It is done when the system works and the city has signed off on it. Tell us what the house is doing and we will tell you what putting it right involves. Licensed since 1995, guaranteed for a year on labor.
Book your service online with Herndon McFarland Plumbing today.
Yes. The City of Carrollton requires a permit for the installation of all water heaters, with no exception for a straight like-for-like swap. State law lets a homeowner do the work on their own homestead, but anyone else performing it must be a licensed plumber registered as a contractor with the city. An inspection is scheduled once the work is complete. We apply through the city portal, build the installation to the published requirements, and meet the inspector, so the permit closes out instead of sitting open.
Carrollton lists a thermal expansion tank on the cold water pipe as a requirement for every water heater installation. Heated water expands, and in a closed system with a check valve or pressure reducing valve it has nowhere to go. Pressure climbs, the relief valve weeps, and fixtures, supply lines, and the tank itself take the strain. The expansion tank absorbs that. It is a small part that quietly protects everything downstream of it, and a missing one is a common reason an installation fails inspection.
Under slab repairs are permitted work in Carrollton, and the city requires the plumber to provide a letter covering the excavation and the backfill. That letter matters more than it sounds, because backfill that is not compacted correctly can settle under a foundation later. We run excavation and tunneling with our own crews rather than hiring it out, so one company is responsible for the pipe, the hole, and the fill, and the documentation matches what actually happened on site.
A permit is required whenever a plumbing system is erected, installed, enlarged, altered, repaired, removed, converted, or replaced. State law allows a homeowner to do the work on their own homestead. Anyone else must be a licensed plumber registered as a contractor with the City of Carrollton. Before hiring, it is reasonable to ask for a Texas State Board of Plumbing Examiners license number and confirm the company is registered locally. Ours is RMP35786.
Repair usually makes sense when the failure is a replaceable part: a thermostat, heating element, gas control, anode rod, or valve. Replacement becomes the better option when the tank itself is leaking, is heavily corroded, keeps producing new problems, or has reached the end of its expected service life. We inspect the unit, identify the actual failure, and check whether the existing installation still meets current Carrollton requirements, since a replacement has to be brought up to those conditions regardless of what the old one looked like.
Often that is the first sign. A bill that climbs with no change in household usage usually means water is escaping somewhere between the meter and the fixtures. Under a slab, a leak can run for a long time with nothing visible, though warm spots on the floor, damp flooring, low pressure, or the sound of water with everything shut off can appear. Checking the meter with all fixtures closed is a useful first test. We use leak detection equipment to locate the line before deciding on a repair method.
From slab leaks under the foundation to sewer line repipes, every job is diagnosed, documented, and done right. A look at recent work across North Dallas.
Excellent customer service, very friendly staff from the person taking the call to the staff fixing the repairs. Very trustworthy company. Shaun explained the step-by-step process and provided very fair prices.
Their positive, upbeat, anxious-to-please attitude made the whole process the very best it could be! All of the employees were a pleasure to work with. I highly recommend Herndon McFarland.
Trent and Reggie were the most professional associates entering our home. They treated our home with respect as if it were theirs. We will use this company again because of them and our experience.
Mention these offers when you schedule. Cannot be combined; see details on each.
Our thank-you to seniors and active or retired military.
One-time use. Cannot be combined with any other coupon or offer. MENTION AT SCHEDULINGSave on any water slab leak repair or full reroute under your foundation.
Cannot be combined with any other offer or coupon. MENTION AT SCHEDULINGSave on any water heater replacement, tank or tankless.
Cannot be combined with any other offer or coupon. MENTION AT SCHEDULINGSave on any plumbing service call or faucet replacement.
One-time use. Cannot be combined with any other offer or coupon. MENTION AT SCHEDULING
