"Professional company. My house was built in 1964 and needed a lot of electrical upgrades to be up to code. We started with replacing my very old panel and moved on to updating light fixtures and adding lights wherever I requested, some for efficiency and other lighting for aesthetics. The qualify of work was A+. Anyone who owns a older home knows how scary replacing anything is, however everything went seamless. The modern lights, new panel and outlets added so much value to my home. With most lights and technology now being energy efficient I'm already noticing a difference on my electric bill. Great pricing as well! Highly recommend Diagnostic Guys!"

Alisha L.

"This company is amazing. Now that I have used Diagnostic Guys I'm NEVER using another company. It's so refreshing to have such great customer service. I appreciate it now more than ever. If you or your family and friends ever need anything done regarding electrical work give this company a call. Support small business!"

Sonya K.

"Diagnostic Guys were there ASAP when we had an electrical emergency (right before a bridal shower) and was able to find the part needed. I've used them many times and they are always fair, responsive and knowledgeable. Great work and highly recommended."

Nora F.

"I have used the services of Diagnostic Guys many times in the past few years for repairs and for our home remodel. They are professional, fair and trustworthy. In addition, they did high quality work correct the first time! I have referred them to many others who have had the same experience. I will continue to use their services for current and future needs."

Antoinette V.

"Best electricians around! They truly care about their customers and work hard to deliver quality services. Isaiah and Tim are incredibly knowledgeable, courteous and are always a pleasure to work with. I ONLY trust Diagnostic Guys to work on my home's electrical needs!"

Kaitlin G.

"Diagnostic guys came to our church building and we're able to Inspect and repair our indoor lighting fixtures install new lighting( LED lights)and replace and update, outlets and smoke detector; check the fire-alarm system; were a lot of help to explain and to show us the Electrical panel of our electrical breakers layout in our commercial building , all of the work was very professional Quality work very efficient and helpful and we really recommend this company to do any electrical commercial building work, they were able to give us excellent recommendations on our existing Electrical panel upgrade they were also able to inspect any other area's of our building that we needed to address ; we will absolutely have them back for any future work and highly recommend them to anyone for the professional and great work and we thank them very much"

The Door Church Lakewood

"I worked side by side with the diagnostic guys on a project, man they know their stuff. They communicated clearly and helped get the electrical outlet exactly where it needed to be, they also installed a pump relay and even rewired the pump and did a spotless job with every task. The homeowner was beyond pleased."

Rodolfo V.

"Excellent company! Very honest and always do great work for a fair price. Highly recommend"

Kara F.

"Helped me put lights in my garage for work area update. Fast & works great. Plenty of light now. Highly recommend."

Robin R.

"I was having Electrical issues When trying to run power equipment at my commercial Shop space. I looked around to find a business to diagnose and address the lack of Power at my shop. I found diagnostic guys online and was able to contact them and get an appointment in a timely manner. Tim stopped by and checked out all of our outlets, he addressed our power shortage and also gave us a variety of different options. Tim was able to diagnose for our lack of power, he helped us fix electrical wiring and install outlet. Overall my experience with this company was great I am pleased with the work they did and the professionalism they demonstrated in doing so. I refer them to all Associates and friends that I have and will use them again in the future."

Gabrielle G.

"Couldn't be happier with the service I received. Respected social distancing and still got the job done. Very professional!"

Brandon S.

"Excellent and Honest in every aspect of our Business experience."


"Highly recommending. Truly genuine honest men."

Samantha Y.

"Great business and great work highly recommend this company!"

Christina F.

"Highly recommend, honest and very professional!"

Ana C.

"Isaiah came out within just a few hours, installed a new fanswitch and didn't overcharge. Absolutely would recommend!!!!"

Levi B.

"Great guys, great prices, great company, honest work! Highly recommend!"

Desiree P.

"Isaiah put a light above our shower for us. He was very professional and explained why a regular light would not work, but it needed to be sealed from moisture for corrosion protection and damage. We were very grateful. Excellent service, and really cared about doing the job right. I would absolutely recommend them."

Mikala T.

"Great group of guys. The owner Isaiah is very professional, polite and helps get you an appointment at the soonest possible time. He was able to diagnose a difficult problem at my family's property very quickly. Competitive rate and superior service!"

Luda L.

"Great service and experience with the crew at Diagnostic Guys. Isaiah and his team (Tim and others) have been extremely helpful and accommodating to our special needs. The team provides excellent communication and clear pricing. They deliver on expectations and go the extra mile to make things happen on deadline and beyond expectations. Highly recommend."

Logan H.

"We had DG over to install some can lights in our kitchen. My wife and I first thought about getting them when we were both stuck home during a blizzard. DG sent someone out that day (in the storm!) to give us an estimate. Tim came in to look at the space and spent time just listening to what we wanted. He told us what methods they usually use and what products the recommend, but said they would work with us on what we wanted and wasn't pushing pricey stuff on us. He gave us a great plan and a clear price. They showed up a few days later and installed the lights in three hours. There was no mess, and everything looks and works great. If you're picking any two of quality, speedy, cheap service, DG delivers on quality and speed. The price was still right in the ballpark of other quotes, and they even offered us a discount when they heard that my wife is an educator, saying they want to help out the community when they can. I can't recommend them highly enough. They're the best."

Kevin A.