- Keeping Idaho Comfortable Since 1973
- 208-726-5520
For more than 50 years, Thornton Heating & Sheetmetal has proudly provided dependable heating, air conditioning, hydronic heating, boiler services, and custom sheet metal fabrication throughout Southern Idaho. Since opening our doors in 1973, we’ve built our reputation on honest recommendations, exceptional workmanship, and lasting customer relationships.
Today, homeowners, builders, businesses, and property managers throughout Hailey, Bellevue, Ketchum, Sun Valley, Stanley, Carey, Blaine County, and Camas County continue to trust Thornton Heating & Sheetmetal for reliable HVAC installation, furnace repair, boiler replacement, air conditioning service, and custom sheet metal solutions designed specifically for Idaho’s unique climate.
Our philosophy has remained the same for over five decades:
Do the job right.
Treat every customer with honesty and respect.
Install quality products that last.
Stand behind every project.
Whether we’re responding to an emergency furnace repair in the middle of winter, designing a hydronic heating system for a custom home, or fabricating specialty sheet metal for a commercial building, our team approaches every project with the same commitment to quality and attention to detail.
Thornton Heating & Sheetmetal offers complete residential and commercial HVAC services, including:
From routine maintenance to complete HVAC system design and installation, our experienced technicians deliver dependable comfort every season of the year.
Our experienced technicians design, install, maintain, and repair high-performance hydronic heating systems for homes and businesses throughout Southern Idaho. Whether you’re installing radiant floor heat in a new custom home or replacing an aging boiler, we deliver efficient solutions built for long-term comfort and performance.
We proudly install and service Lochinvar® boiler systems while providing expert repair services for many major boiler manufacturers.
Unlike many HVAC contractors, Thornton Heating & Sheetmetal operates a full-service sheet metal fabrication shop.
Our skilled craftsmen fabricate custom ductwork, chimney caps, kitchen hoods, architectural sheet metal, dryer vents, stainless steel components, and specialty metal products tailored to each project. Every piece is built with precision to ensure proper fit, performance, and durability.
We believe quality equipment makes all the difference. That’s why we proudly install and service many of the industry’s most trusted manufacturers, including:
Our experienced technicians can repair, maintain, and replace equipment from most major HVAC manufacturers.
Thornton Heating & Sheetmetal proudly serves homeowners and businesses throughout:
Our knowledge of Idaho’s climate allows us to recommend heating and cooling systems that provide dependable performance through cold winters, warm summers, and everything in between.
Whether you need furnace repair, air conditioning installation, boiler replacement, hydronic heating, indoor air quality improvements, or custom sheet metal fabrication, Thornton Heating & Sheetmetal is ready to help.