Top 10 Tankless Water Heater in Austin, TX
The best tankless water heater companies in Austin, TX for 2026 include Radiant Plumbing & Air Conditioning (4.9), Stans Heating Air & Plumbing (4.8), ABC Home & Commercial Services (4.8). All install, repair, and maintain tankless and on-demand water heaters from all major brands.
Radiant Plumbing, Air Conditioning, & Electrical
Texas Water Heaters
Austin Plumbing
Beyond Wow Plumbing & Drains
Stan's Heating, Air, Plumbing & Electrical
Plumbing Outfitters
Daniel's Plumbing and Air Conditioning
Reliant Plumbing - Austin
Reliant Plumbing
Plumbing Outfitters
How We Ranked These Austin Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Austin market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does a tankless water heater cost in Austin?
A tankless water heater in Austin costs $2,500-$5,000 installed. The unit itself is $1,000-$2,500 and installation labor is $1,000-$2,500 including venting and connections.
Is a tankless water heater worth it?
Yes if you stay 7+ years. Tankless saves $100-$150/year on energy, lasts 20+ years vs 10-12 for tank, and provides unlimited hot water. The higher upfront cost pays for itself over time.
Do tankless water heaters need maintenance?
Yes, annual descaling is recommended, especially in hard water areas. Costs $100-$200 DIY or $200-$350 professional. Without maintenance, mineral buildup reduces efficiency and lifespan.