Mechanical Contractor reviews in Warren, Michigan

The way employees conduct themselves in company vehicles is a direct reflection of the company itself. Employees tailgating in poor weather when traffic is heavy endangers the public. Whoever drives 743 needs their privileges revoked.

De-cal is always quick to respond, great to work with and overall very fair priced.
We love working with them.

Called and asked to speak with someone in the service department. 5 minutes later I got a call from Nick. Thanks for the quick response!

We have been working with De-Cal for years and they are very professional, helpful and accommodating.

Awesome Business to work with. Always willing to support their community and local schools!

Excellent work and great customer service! A pleasure to do business with. Highly recommend.

If your are searching for a contractor to provide solutions for your mechanical/ electrical needs, look no further than De-cal. Office staff is courteous and professional. Jobs get done right the first time, on time.

Outstanding team of professionals!
These are the guys I recommend for all my mechanical work!

Always provides us with great service.

Extremely prompt. Extremely professional. Did a very nice clean job. Couldn’t ask for anything more. These guys did a great job and I would recommend them to anyone.

Professional, very well-organized company. We used them for many years and the provide a diversity of services unable to be matched by many local companies.

Called Decal for a hot water temp issue because I had always had good service at past employer with Mark and Bob on my HVAC. Dwayne responded promptly and due to his incredible acumen we had resolved an issue that could have had a very costly consequence

Great Service! Their staff are very friendly and professional. Quick responses to questions or concerns. Also fast service to keep downtime low. Highly recommended

I highly recommend this company! Any time we have needed them they were able to come out same day or first thing in the morning. The previous company we used always took 3 days before showing up for an emergency.

De-Cal is a pleasure to work with. They are communicative and experienced. I highly recommend this company.

I have been working on a major project that involved a large two story house in Highland Park and converting it into a commercial structure that would provide after school activities for doing homework, receiving a hot meal, using computers to excel their learning. This environment is a safe haven for school kids after the school day and during the summer between school years. It will also provide pre-school day care services.

We needed the assistance of a commercial contractor who technical expertise in the field of geothermal systems. I was fortunate to have a friend who has handled my personal HAVC for 30+ years. He has many friends in the business who opened their reference file and I was able to make a contact with Nick who manages their services end of the business. He spent time walking through the two systems that heat and cool this structure. I was able to provide a history of our challenges since mechanical installation.

I received a detailed quote from Nick which detailed all the services his team would provide to ensure the systems would run as designed and engineered. Once the contract is signed for the services quoted and services, I will be back to provide my feedback on the services performed.

I am the General Manager for Home2 Suites by Hilton Taylor Detroit. I used this company for our HVAC system and cannot recommend them enough. Awesome customer service and so knowledgeable. Shout out to Nick, Alex, Tim, and Pat. What a great team. Thanks for keeping us cool in the heat of August! :)

I was behind one of their vans on the way to work this morning, and you would have thought it was a drunk driver. Get around him on the highway, and he's just living his best life playing on his phone. Surprising for a company like this to allow drivers to be on their phones like this. Please don't put the rest of us in danger through your lax policies.

Awesome Business to work with. Always willing to support their community and local business! Nick, the Service Manager, was malleable with his time, clear with direction, and an all around swell guy to work with.
10/10 - would recommend to a friend.

Jason, Nick, Kristen, Jon, Aimee and the rest of the team are the exemplars of great customer service. They are very professional, always ready to respond, and provide timely feedback. We have been doing business with their team for decades and they never fail our expectations. Thank you!

Great company! Techs arrived timely, were knowledgable and performed their job well. Service department is one of the best I have ever worked with. I highly recommend De-Cal for any mechanical needs.