At High Efficiency, we have built our business on integrity and trust for both our residential and commercial customers throughout the Denver metropolitan area. We take special pride in the craftsmen we train and employ. Our technicians are well groomed, courteous, factory trained and provide the highest quality service possible – at a reasonable price.

Read what our customers have to say about their experience with High Efficiency:

D.S. in Highland Ranch, CO - January 2010

“Craig was so helpful. He took the time to talk to my husband several times on the phone. Not many companies do that!”

 

J.V. in Aurora – January 2010

“John was excellent, did everything beautifully. He was very knowledgeable and explained everything so nicely. From now on, if we have any furnace problems, we will call High Efficiency and ask for John!”

 

S.M. in Englewood – December 2009

“Martin worked wonderfully, was very respectful, and cleaned up beautifully. I had a friend who was a builder oversee the work and he was so impressed with their attention to the job. He’d never seen a better crew work. I am extremely happy! He gets a 150% rating.”

 

K.L. in Wheat Ridge– September 2009

“John was just wonderful, knowledgeable and such a nice guy.” 

 

P.VH in Highlands Ranch – January 2009

"On a service call for no heat the tech was on time, he diagnosed the problem and gave me a price to fix the furnace. I approved the work; the tech replaced the part and had my furnace up and running in very short order. I would recommend High Efficiency to my friends and neighbors any time.”

 

J.G. in Centennial – September 07

"We had a new Bryant 80% two stage furnace and a Bradford white water heater installed for a home we were moving into this month. The installation was done in a timely manner. We were given several options with different types and models of furnaces. Consequently, we were able to pick the price and the equipment we could afford. I would recommend High Efficiency to our friends and neighbors.”

 

S.D. in Denver – July 2007

"We had a Bryant 14 SEER air conditioner installed by High Efficiency. The sales person was on time, courteous and listened to what our concerns were with our new home. We had done some shopping, but the recommendations by the Comfort Specialist made sense not to buy a larger AC than we needed or a SEER rating that our furnace would not support. Their install team was prompt and they had the AC up and running in less than one day. We will be recommending High Efficiency to our friends.”