Cornerstone Custom Construction LLC

Very happy with the project.

Quick, easy payment options and professional

They were great with communication from start to finish. I will contact John for any future Electrical needs without hesitation.

Replace underground feed to barn. The guys were all friendly and polite. This was a tough job but they were organized and worked well together. It was really hot but they never slowed down. I have experience with electrical work and I can say everything they did was top notch and by the book. Referred John to my daughter which I think says it all.

Clean,polite and personable will use John For the next electrical project. Thank you Ewan

They did an amazing job on our house last year. Would and will use them again in the future!

John did a great job. Very personable and professional. Flexible and accommodating to our schedules and needs. Quality work. I would recommend him to others.

They were VERY FRIENDLY and professional at the same time. We didnt have to do anything to prepare(arrange with Duquesne light) they handled that for us. Great servuce thru and thru😁

They were prompt, professional and efficient.

These guys are great would recommend to all my family and friends

I had Cornerstone run electric from my house to my garage. They did a outstanding job and while they were here we decided to have them install 2 ceiling fans and outdoor lighting which looks great. Very professional and affordable. I highly recommend them to anyone needing electrical work.

Very professional good service good job

I had them install a unit heater in my garage. John did a great job with the installation and was extremely efficient! Will definitely use them again if and when I need an electrical installation! I strongly recommend them.

Very efficient and accommodating with schedule, polite and courteous, reasonable price.

Very pleased with the prompt and professional work that was done.

John was very prompt professional and cordial. He was also very informative and wonderful with my overbearing attention seeking dog. Will seek work from home again.

Did exactly what he said he would do on the day that we agreed to. Good communication.

Very personable try’s to satisy

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The device was great.

Contacted Cornerstone to check and update grounding at breaker box, and to indicate if any other work was needed to ensure grounding in outlets and wiring around the house. This job was to be done prior to other home renovations. Did a good job grounding the box and breakers, but apparently he didn't even look at the fact that there were NO ground wires in about 30% of the household wiring and outlets. Of course, this was determined on beginning other home repairs and wiring will be upgraded to connect to the now-grounded breaker box. Sadly, this job will go to another, perhaps more attentive, contractor.