Water Heater Repair & Installation

Manufacturer stickers say 10 to 12 years for tank units. In Dallas Water Utilities hard water (7 to 11 grains per gallon), the honest range is 8 to 12 years without regular maintenance and 12 to 15 years with annual sediment flushing and anode rod inspection. Tankless units last 15 to 20 years with annual descaling. If you are past 10 years on a tank unit, start budgeting for replacement even if it is still working. Waiting until it fails usually means flooding damage plus an emergency install premium.

Repair if the unit is under 8 years old, the tank itself is sound (no leaks, no corrosion visible), and the failed component is a repairable part (thermostat, heating element, thermocouple, T&P valve). Replace if the unit is 10+ years old, the tank is leaking, water comes out rusty (anode depleted and tank corroding internally), or repair cost approaches 50 percent of replacement cost. On-site diagnosis clarifies which path fits your specific unit.

Depends on the household. Tankless pays back its higher install cost over 15 to 20 years through 20 to 30 percent lower operating cost. It also fits well for high hot water demand (large families, multiple simultaneous showers) and for space-constrained installs. It is usually not worth it if your household has average hot water demand, your existing gas line would need major upsizing, or you plan to sell the home in the next 5 to 7 years. In pre-1960 East Dallas homes, gas line upsizing costs can significantly change the tankless install budget. On-site evaluation gives an honest answer for your specific home.

Standard 40 to 50 gallon gas or electric tank replacement runs $1,800 to $3,800 including the unit, install labor, disposal of the old unit, and typical code-upgrade items. Tankless installation runs $4,500 to $9,500 including gas line upsizing and venting when required. Historic Dallas homes with permit review requirements or unusual venting paths may push toward the higher end. Larger commercial units and complex installs quoted separately. We diagnose on-site and quote flat-rate before any work begins.

Yes, especially in Dallas Water Utilities hard water. Annual maintenance for tank units includes sediment flushing (removes the mineral layer that shortens tank life), anode rod inspection (replaced if depleted to extend tank life significantly), T&P valve test (safety check), and thermostat verification. For tankless units, annual descaling is often required by the manufacturer to maintain warranty coverage. Cost of annual maintenance is a fraction of the cost of premature replacement.

Our shop is at 844 Dalworth Dr., Suite 10 in Mesquite. Active water heater emergencies (no hot water, active leak, gas smell around the unit) are prioritized and typically dispatched same-day when reported before noon Monday through Friday. Most East Dallas dispatches arrive within 25 to 40 minutes during business hours, longer overnight and on weekends. After-hours and weekend calls accepted. For active gas smell, leave the home and call Atmos Energy at 866-322-8667 first.