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Customer Feedback

How do you know if you’re with the right HVAC contractor? Look at the reviews! Check out our Yelp and our BBB to see what people are saying about the quality of work, amount of customer service and more from Jefferies Inc.

"Words can’t describe how grateful I am (to) Mr. Russ. I had no heat in my house for a couple days now, and really no money to fix it. Mr. Jefferies talked me over the phone step by step, without charging or sending a tech out and helped me with my furnace and getting my heat back on before the snow starts. Thank you thank you! I will be calling for my future needs! This is true customer service."

- Jairo J, Brighton, CO

"Outstanding customer service! The technician came to my home and was very thorough. Andy spent the time to ensure that my furnace was working properly and explained everything he was doing. I will always be a customer."

- DJ C, Hudson, CO

"Jefferies Inc. provided me with estimates and a timeline for HVAC services. Russ and his staff were able to complete the project both on-time and on-budget. I won’t use anyone else going forward!"

- Mike E, Brighton, CO

"You just know you’re going to have one of those days when you wake up and it’s 85* in your house and you can tell your A/C is not working!! After some failed DIY YouTube measures, I knew I needed a professional. Now understand, we are pushing 95* plus the last several days and everyone is having A/C issues!! One phone call to Jefferies inc. and Mike was at my door at 11am! He did a great job diagnosing the problem (an extremely dirty blower fan and low A/C coolant) he was in and out in no time and the cost was very reasonable as well!! The house is now cooler than it’s been in a long time!!! Thanks Mike! If you find yourself in need, give these guys a call!"

- Darrick L, Brighton, CO

Our highly-qualified service technicians and installers are ready to help you with your homes heating and cooling needs.

  • 100% Customer Satisfaction Guaranteed

  • First Aid Trained and Certified Technicians

  • OSHA Trained and Certified Technician

  • NATE Certified Technicians

  • All Technicians Must Pass a 10-Year Criminal Background Check

  • All Technicians Must have a clean driving record

  • Tobacco and Drug Free work place and customer sites

  • 98% Customer retention rate plus 15% annual growth rate

  • All Technicians are pre-screened on technical ability before hire

  • We schedule appointments without you breaking your schedule

  • We only install high quality factory equipment and components to optimize efficiency and lower long term repair costs

  • Locally owned and operated

  • 24/7 Hour Emergency Service

  • We provide a 2-hour guaranteed response time to all preventive maintenance contract customers

2024 © Jefferies Inc.