Water Heater Replacement Guide for Texas Homeowners

Planning a water heater replacement in Texas? This complete guide covers everything Houston homeowners need to know — types, costs, what to expect, and how to choose the right unit.

Signs It's Time to Replace Your Water Heater

• Unit is 10–12 years old or older
• Rust-colored or discolored hot water
• Rumbling, popping, or banging sounds from the tank
• Visible rust or corrosion around the tank
• Pooling water around the base of the unit
• Frequently running out of hot water despite correct sizing
• Energy bills rising without explanation

Tank vs Tankless Water Heaters

Tank water heaters store 30–80 gallons of preheated water. Lower upfront cost, simpler maintenance, shorter lifespan (8–12 years). Best for most standard Texas homes.

Tankless water heaters heat water on demand — no storage tank. Higher upfront cost but endless hot water, better energy efficiency (up to 34% savings), and 20+ year lifespan. Ideal for larger families or homeowners reducing energy costs long-term.

Sizing Your Water Heater

Tank size by household:

• 1–2 people: 30–40 gallon tank
• 3–4 people: 40–50 gallon tank
• 5+ people: 50–80 gallon tank or tankless

Tankless units are sized by flow rate (GPM) rather than storage capacity. SM Plumbing's technicians assess your home's hot water demand and recommend the right size for your household.

What to Expect During Installation

Standard tank replacement takes 2–4 hours. Tankless installation takes 4–6 hours due to venting and gas line work. SM Plumbing's handles all permits, inspections, and haul-away of the old unit. Call (346) 776-0337 for a free estimate before committing.