Very professional

Theresa from Boulder, CO

very good

Carol from Boulder, CO

Fast and professional

Greg from Boulder, CO

I had a no heat situation and within 20 minutes of making a call I had a technician at my door to fix my furnace.

Great Service, advice and recommendation and very reasonable price

Henry from Boulder, CO

Awesome service. I'll use you for all my heating and air conditioning needs

Great

Bob from Boulder, CO

Arrived on time and fixed the furnace within an hour. Very knowable on this furnace.

Thanks to your hard work on furnace and AC maintenance.

Marilyn from Boulder, CO

All good.

very satisfied

Joe from Boulder, CO

Glad to have a super HVAC Lenox unit at my rental in Boulder

Rickard from Boulder, CO

Thanks for the professional service

Exceptionally gratifying - On a scale of 10 Josh was a 12+++

Ken from Boulder, CO

This was the 4th year we have experienced the problems associated with our A/C system, originally installed by Kappler in '07. Every year we have called to have a technician check out the system, but the underlying problems were never identified - every checkout ended with "everything is working just fine!" Only it wasn't. Josh was the first technician to (1) listen to my description of the symptoms of our issues, ask intelligent and probing questions from those issues, and then (2) proceed to check out control and software functions associated with the perceived issues. In less than one hour he had diagnosed the underlying problems (a failed expansion valve, incorrectly set DIP switches, possible low coolest, and other problems), located a replacement valve, and arranged to return the next day (Friday the 7th) to repair the system. He returned on Friday and although it took him several hours of hard, technical effort, he managed to completely resolve the issues and left us after a period of trial run of the repaired system with an A/C system that was working like it had when first installed. After the frustrations of the prior years that failed to fix the problem(s), it was incredibly satisfying and a major relief to have had the services of someone so knowledgable and detailed, not to mention the validation of finding out that our problems were not of our imagination as we were told frequently in the past, but were in fact the result of serious system failures and incorrect settings.

great service

PaUSA from Boulder, CO

very nice technician, arrived on time, good price

A/C repair

David from Boulder, CO

Quick response, professional diagnosis, immediate repair.

GREAT SERVICE BUT PART COST HIGH LIKE AUTOMOBILE REPAIRS

Wilbur from Boulder, CO

Exorbitant cost of part but in line with part cost for automobile repair.

Excellent service! Very affordable, high quality service

Rachael from Boulder, CO

Very professional and thorough!

Theresa from Boulder, CO

Brian was excellent with his explanations and service. I trust him.

Bev from Boulder, CO

This winter we had to call on Kappler for service at almost midnight in the middle of deep freeze. They were here. Fixed the problem caused by other circumstances and explained how to avoid problems in the future. We have always had good service over the years.