4.5 
2.2k+ *The Angi rating for Boiler Installation companies in Johnstown, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Johnstown, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on February 27, 2026
Serving Johnstown, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"The quoting and installation process was smooth. There was no pressure to hire them immediately, and they did a good install."
+67
Serving Johnstown, CO and surrounding areas
Approved (Corporate)
In business since 1978
Free estimates
Emergency services offered
"One Hour has been my HVAC supplier for more than a decade, and I have never had a reason to consider any other firm. This week Justin L. and Steve came to install improvements. They were professional, courteous, and took the time to explain to me just what they were doing, and to answer my questions. On a scale of one to ten they were both elevens. I'd give them six stars if I could. You can trust One Hour to do it right."
Serving Johnstown, CO and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
Our team of master plumbing, heating and air conditioning technicians are dedicated to providing professional quality plumbing and HVAC services to residents and families throughout the Denver metro area. Our teams of highly qualified plumbers and technicians are always equipped with stocked work trucks to get the job done and resolve your issues quickly. We understand the importance of providing timely and high quality service. Being a family-owned and operated business, we are also mindful of the fact that it is taking place within your home, and take the following steps to respect your home while we are on-site\n
+1
Serving Johnstown, CO and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"The technician was extremely nice, prompt and professional during his visit. It was shocking to hear how much he said it would cost to remedy my boiler problems. We will absolutely get a second opinion before hiring for this job"
+8
Serving Johnstown, CO and surrounding areas
Approved
In business since 2022
Credit card accepted
In Business Since 2023\nSAVAGE HEATING AND AIR, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
+3
Serving Johnstown, CO and surrounding areas
Approved
Jack of all trades and a master of a few. I'm new to the colorado area but I can help you take whatever project you need
Serving Johnstown, CO and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
Based in Loveland, Colorado, Eastwood Heating and Air is a dedicated HVAC provider led by Tyler Lanham. We specialize in delivering reliable heating and cooling solutions tailored to meet the specific comfort needs of our local community. Our team is committed to professional excellence and high-quality service, ensuring every system runs at peak efficiency. Whether you require routine maintenance or complex repairs, we strive to provide dependable expertise you can trust for your home or business.
Serving Johnstown, CO and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"It was well priced, and the installation was pretty quick and efficient. We'll definitely call them back for any future HVAC work or service we need."
Serving Johnstown, CO and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Chad was great and very knowledgeable about using EcoBee Smart thermostats and zoned boiler heat systems."
Serving Johnstown, CO and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Chad was great and very knowledgeable about using EcoBee Smart thermostats and zoned boiler heat systems."
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