M3 Service | 24/7 MEP Maintenance & Repairs

How M3 Service Supports Your Facility

Whether you need emergency support or long-term system planning, M3 Service is built to help facility teams stay ahead of issues and make informed decisions about their building systems.

Emergency service and troubleshooting

Preventative maintenance programs

Mechanical/HVAC repairs, replacements, and upgrades

Electrical repairs, retrofits, and installations

Ongoing support for commercial and industrial facilities

Why Customers Work With M3 Service

M3 Service gives facility teams a single, reliable partner for mechanical, electrical, and maintenance needs. Our team combines responsive service with technical experience, helping customers solve immediate issues while planning for long-term system performance.

One point of contact for multiple trades
24/7 emergency service
Certified technicians
Preventative maintenance programs tailored to your facility
Support for repairs, upgrades, retrofits, and replacements

Mechanical/HVAC

Electrical

Infrared Thermographic Scanning

Maintenance Agreements

Request Service

Tara was quick to submit my quotes or provide me with what we were waiting for if she was unable to submit the quote in a timely manner. Their communication in that office is great. Overall M3 is my favorite vendor to work with. - Kara Smith, Strategic Accounts Manager, Comfort Systems USA

M3 service is one of my preferred vendors to collaborate with. Molly is truly a breath of fresh air in the HVAC community. She is consistently responsive and pleasant. I hope that all my daily interactions could mirror this experience. Molly exemplifies excellent communication an - Kara Smith, Strategic Accounts Manager, Comfort Systems USA

The technicians at Mark III are thorough and take time to listen to their client’s needs. They are experts at relaying technical information in an easy and intuitive way. I encourage anyone looking for an honest and affordable service provider to contact Mark III. - Zack Rollston, National Account Manager, Alarmco, Inc.

Derald came out yesterday and took really good care of us. He put in a lot of effort in making sure everything was as we wanted. He was polite and pleasant all throughout his work. - Matthew Throne, Operations Supervisor, Gallagher Bassett

I wanted to take the time to express how fantastic of a job Tara does. I appreciate her hard work and excellent performance. She is always so helpful and kind. She has made a huge difference in getting quotes over to me promptly. We all appreciate her outstanding efforts. - Christy Mulder, Account Coordinator, Comfort Systems USA

Had an issue with my A/C and Michael Sublaban came by and gave a thorough look and was professional through the whole process. He explained the issues with my A/C unit, did some troubleshooting, and got the job done. Couldn't ask for a better outcome. - Benny Amaya, via Google Review

NEIF Financing Available

M3 Service is a NEIF-Approved Contractor, making energy upgrades more affordable with low monthly payments and no large upfront costs. Upgrade your HVAC, lighting, EV chargers, and more—and let the savings pay for themselves!

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