Best AC Installation in Denver CO

Super helpful and on time. Looks great!

I called other places but when they came out gave me bid I felt comfortable with customer service and knowledge of my issue so I went with this company of course I was satisfied with time of completions and the work done. I highly recommend.

They did a quality job at a very reasonable price.

Korey was most professional. He proformed maintenance on our heating system. He explained everything and answered our questions. He even gave us a tour of the inside of our heater.

Good workers

Very responsive! Scheduled meeting for inspection and estimate NEXT DAY! Extremely knowledgeable and thorough and courteous. Have hired him and look forward to leaving a post-project review.

Post-project review: Justin and his team (Brooke, Jay, Seth, Chandler) worked all day - each day - for the ENTIRE weekend, until almost midnight on a Sunday night, to diagnose and correct multiple safety hazards and long overdue electrical upgrades! I can’t say enough about their knowledge, professionalism and courtesy. It’s almost impossible to find any of those characteristics these days, and Interstate has all of them!!

Robert A.

Electrical and Wiring Repair
Had Brian come out and repair some old outlets and wiring, and he did a phenomenal job!. Very quick as well! Will be having him come out and install new light fixtures in our closet. 100% recommend!!

FYI Jim doesn't do agreements just estimates. He Started a total remodel of 2600 sf overhauled 100amp panel to 200 in October 2015! Took us 5 months to get started but we were warned up front Jim was that far out & busy. We passed the rough in then I saw Jim one more time in 2016 & we got 3 outlets & 1 switch! Yay! BUT

Haven't seen or heard from Jim since! We've texted called & emailed EVERYTHING has gone unanswered! Some girl answered his emails once then emailed me back to say she quit! Very fishy, maybe Jims website has been hacked. Maybe Jim is dead. We just don't know!

We just can't continue to wait on Jim to finish the House & call the building dept for final inspection. We don't know how good Jim is because we haven't passed final. Our concern is Jim might have known it might not pass so he just disappeared! With no agreement in place there's nothing but a verbal agreement. So he's been paid $6,800 & didn't finish the job! We liked Jim personally & just hope he's ok alive & his family is good!

My advice: buyer beware! GET AN AGREEMENT IN WRITING OR DONT HIRE!

Employee vehicle 1105 thinks it's a great idea to drive under the speed limit in the HOV lane on Sante fe, with only one person in the vehicle. Bad marketing tactic with your company name all over the vehicle. 👎

I called and was told they could come tomorrow. They had a cancellation today and offered to come and took care of the problem. I was given a quote up front and was very pleased with their service.
Thank you!

NOT Discount. Quoted me $320 to drop a wire down the wall and install an outlet. Seemed high on its own but he was at the home already, so I agreed. Completed the work and then returned to my door w/ a $500 bill. When I called him on it, he said the $320 was just labor. He never said that initially and who quotes just labor? The remaining $180: one outlet, one fuse, and 10ft of wire....oh and kept the trip charge on. Bait and switch and shouldn't be allowed to use the word discount!!!

By far the best Solar Company in the Denver Area. I worked with these guys for over a year, and while there, I saw nothing but the utmost professionalism and capability. If you want someone to treat your solar as their own, Call Golden Solar!!!

Nick at Knight electrical inc was quick to respond and very knowledgeable. He ended up saving us a lot of money by being honest and to the point. Would use again in the future if needed.

Called first thing this morning and they were able to have a tech out within the hour. They were transparent with pricing and no hidden fees. David was prompt, professional and able to find and fix the problem of my partial power loss quickly! Will absolutely keep these folks in mind for any other electrical needs.

Trustworthy, on time, high quality, great people

Every time Pat scheduled an appointment with me, he was actually able to make it before the scheduled time. Came in with a very reasonable bid and was able to complete the work within 24 hours. Thank Pat!

We have work with CSI on several different projects using back up Generators and UPS systems including Fire Stations, Call Centers and other commercial buildings. Their customer first approach and their level of expertise in power generation and critical UPS backup systems make them the best in the business in my opinion.

I work for a Rocky Mountain Electric for about 3 weeks only got paid for one week still owes me 37 hours pay