Top 10 Boiler Installation in San Antonio, TX
The best boiler installation companies in San Antonio, TX for 2026 include Rosenberg Plumbing & Air (4.9), Goettl Air Conditioning and Plumbing - San Antonio TX (4.8), Zimmermann Air Conditioning & Heating (4.9). All install high-efficiency gas, oil, and combi boilers with full warranties.
Boiler Installation in San Antonio, TX: Choosing the Right System
Replacing a boiler in San Antonio, TX is a significant home upgrade. Modern high-efficiency boilers can cut heating costs by 20-30%, but proper sizing and installation are critical to realizing those savings.
- Compare combi vs system vs conventional boilers for your home type
- Ask about available utility rebates for high-efficiency installations
- Ensure the installer handles all permits and inspections
Goettl Air Conditioning and Plumbing - San Antonio TX
Rosenberg Plumbing & Air
Radiant Plumbing & Air Conditioning
1st Call Plumbing & AC
Roadrunner Plumbing & Air
San Antonio Plumbing
Simple Service Plumbing, Heating & Air
PlumbSmart
Jon Wayne Service Company
Beyer Plumbing Company
How We Ranked These San Antonio 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 San Antonio market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does boiler installation cost in San Antonio?
Boiler installation in San Antonio costs $3,500-$8,000 for a standard gas boiler. High-efficiency condensing boilers cost $5,000-$12,000. Combi boilers (heating + hot water) cost $4,000-$10,000.
What is a combi boiler?
A combination boiler provides both central heating and hot water on demand — no separate water heater needed. Compact, efficient, and ideal for smaller homes. Saves space and reduces energy bills.
How long does boiler installation take?
Straight replacement (same type/location) takes 1-2 days. Switching fuel type or relocating the boiler takes 2-4 days. New installation with radiators takes 3-7 days.