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De-Cal has been great with both our HVAC and Electrical needs. They are communicative and they're service is great and friendly. We have 9 sites in MI we use De-Cal for and Gerry, Joe, and Rob have been great to work with. They are knowledgeable and trustworthy!

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.

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.

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.

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!

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

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.

De Cal has been a great resource for the City of Taylor. Great people, service, equipment maintenance and honest evaluations of potential issues. Give them a call to discuss your needs. You can't go wrong!

Decal has been nothing but a pleasure working with over the past few years. They are very good at any HVAC task you need. Very responsive, professional and thorough. Anytime, I have ever needed anything done for my clients they have been there. Tim and his staff are very nice loyal people. Would recommend them to anyone OH!

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

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.

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!

I worked with De-Cal on the start-up of multiple water-cooled units over several weeks at a large critical cooling facility. The system required a high level of technical knowledge. The De-Cal team was very professional, communicated regularly and had a high level of technical expertise. They were a pleasure to partner with on this facility.

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

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! :)

All of my co-workers get job offers here. How do I set up a interview? I use to rope up Jason Thomas's drill as a apprentice.

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.

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