Best Ac Replacement in Denver CO

Aaron was super helpful and fixed our issue with a loose wiring connection in less than an hour. He was friendly, patient and diligent with figuring out the problem.

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.

Had Tim, David, and Rick over to complete a few electrical jobs. The team was punctual, courteous, and efficient---exemplary professionalism overall. They ensured complete satisfaction throughout each job, and offered fair and honest pricing. I will look to Williams & Sons Electric for my family's future electrical needs, and encourage others to do the same.

Dean and Jason did an outstanding job for me. They are both extremely helpful and very easy to work with I request them every time

SladeEnergy was great to work with! We had an EV charger installed and they did a great job. Chris was communicative and their pricing was competitive. Would highly recommend them!

Justin is incredibly smart and conscientious.
His mom raised a good man. My very old house has had so many electrical patches that needed to be fixed and I didn't know where to start.
Justin explained in great detail the best way to approach my electrical mess. I feel so much safer in my old house and that is more important than anything else. By upgrading my electrical box and cleaning up numerous odd fixes I can begin to bring my house into the 21st century.
He also brought to my attention the need for additional smoke and CO2 alarms which I was able to install myself.
He is a great educator. He is happy to break a big project into smaller financial projects so you can work towards a properly coded house.

I was needing immediate electrical work and Pat, the owner, was willing to move mountains to help me. Thank you Pat!

I own a telecom and security company named Catalyst Communications Group here in Denver Colorado.

I've used Nick on several commercial projects to assist us with various electrical needs, he is excellent! Always outstanding work quality, great communication skills, delivers on time and on budget!!

I'd give him 10 stars if I could!

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!!

Jim solved a problem I have been dealing with for years and I'm so grateful! He really knows his stuff and is very fair with pricing. He explained everything he was doing and I would recommend him to anyone. Thanks Jim!

Technician (Paul) was extremely professional and knowledgeable. He explained everything he did. I highly recommend him. Great experience!

Reasonably priced and professional, friendly service! Patrick was great about communicating, and he clearly knew what he was doing when he was doing the estimate for replacement and additional lighting in this older building of ours. His technician, Mike, was also very knowledgeable and you couldn't ask for a more courteous attitude, as he was working while customers were shopping in the store! He even stayed late into the evening so as to complete the job in one visit for our convenience. I'd recommend this company to anyone who needs electrical work done!

Zach came over for an electrical issue with my swamp cooler. He was able to figure out the problem that 3 different HVAC companies hadn't been able to! He was responsive, timely and very reasonably priced! Highly recommend!

My experience with OBrien electric is super great. O'Brien is friendly and personalable.great guy.servive is honest ,fast and reliable. Also very reasonable quote too.
It's hard to find such great electric service company in Colorado this day.I will recommend to anyone who need services.

Friendly people

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