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Experts in Radiant Heating

Your local expert in residential and commercial Radiant Heating solutions.

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24 hour emergency care when you need it most!

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Heating & AC Problems?

From repairs to replacement we've got you covered

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Most Trusted HVAC Company

Since 2004 Custom Radiant has been providing Seattle, Renton, Auburn, and the surrounding area home owners and businesses with perfection in hydronic radiant heating, air conditioning, solar, plumbing and so much more.

Our hydronic radiant heating expert has over 30 years’ experience in designing and installing the perfect solution for your home or business when it comes to your heating or cooling needs. We will never sell you on what you don’t need but educate you on what is the best design and why. We always keep in mind quality, energy efficiency and longevity of a system installation or upgrade, or for your service or repair. Our word of mouth reputation has kept us in business as we continue to build superior customer satisfaction over the years and we look forward to meeting your needs.

Open M-F 8am - 5pm

Emergency repair services 24 hours a day, seven days a week. 

Satisfaction Guaranteed

We guarantee our work on all Heating, Ventilation & Air Conditioning service.

Professional Technicians

Our technicians have your safety, welfare and comfort in mind at all times. They are certified and experienced.

Heating & Air Conditioning Services

Our technicians are committed to performing expert quality repair, maintenance and installation.

Call 206-604-7530 & 100% satisfaction guaranteed!

What our customers are saying…

“I had a major remodel with significant plumbing replacements along with the installation of radiant heat. Jeff was architect and installer. He is very detailed and politely educates the customer service throughout the process. Highly recommend!!”

Stafford Mays - Aug 9, 2018

“He was very thorough and explained everything in detail. He did an excellent job. Thank you for the great service!”

Charlotte Schardt - July 12, 2017

Quality Heating, Ventilation & Air Conditioning