Water Heater Installation Cost in Friendswood, TX (2026 Pricing Guide)
Water heater installation is one of the two or three most-researched plumbing costs in Friendswood. Here is honest, local-market pricing from a licensed Master Plumber who installs water heaters every week in Friendswood, Pearland, Alvin, and Manvel.
Tank Water Heater Replacement: $1,900 to $3,750
For a straight swap of a failing conventional tank water heater, expect $1,900 to $3,750 all-in including the unit, labor, permit, haul-off of the old unit, and a 6-year warranty.
- 40-gallon gas (Rheem or Bradford White): $1,900 to $2,400
- 50-gallon gas (upgrade for family of 4+): $2,100 to $2,700
- 75-gallon gas (large home or soaking tub): $2,900 to $3,750
- 40-gallon electric: $1,750 to $2,250
- 50-gallon electric: $1,950 to $2,500
Tankless Water Heater Installation: $3,750 to $6,350
Tank-to-tankless conversion requires gas line upsize (from 1/2" to 3/4" or 1"), new venting, and an isolation service valve kit.
- Tankless unit itself (199,000 BTU Rinnai, Navien, Rheem): $1,500 to $2,400
- Installation labor: $900 to $1,400
- Gas line upsize (if existing 1/2"): $400 to $900
- Venting: $350 to $650
- Isolation service valve kit: $125 to $180
- City of Friendswood permit + inspection: $65 to $110
Hybrid Heat Pump Water Heater: $4,200 to $6,800
For all-electric Friendswood homes or homeowners prioritizing efficiency. Federal tax credits of up to $2,000 currently apply, dropping effective cost well below conventional electric.
What Adds to Every Install
- Expansion tank (required by TX code with PRV): $120 to $180
- Drip pan with drain line for attic installs: $110 to $190
- T&P discharge piping extension: $55 to $95
- New flex gas connector: $35 to $55
Why Our Pricing Is at the Lower End
Our trucks stock Rheem, Bradford White, A.O. Smith, Rinnai, and Navien water heaters at wholesale cost. We do not mark up equipment at retail-plus rates like franchised national chains.