Sentinel Mechanical has been one of the main plumbing and heating businesses in Missoula, Montana since 1987. We specialize in both Commercial and Residential projects, including everything from large commercial construction to residential home remodels. We are also pleased to offer 24/7 service to help you in case of an emergency situation.  Our company is here to serve your plumbing, heating, and HVAC needs. We are large enough to get our projects done efficiently and punctually, yet personable enough to know you by name.



Used this company to finish up my AC unit. GREAT PEOPLE! Made the appointment and THE NEXT DAY they were there! AC unit took a little longer to install than we anticipated however the technician (Steve, possibly?) was great! Thank you for your hard work!

Darci L., Missoula, MT

I received excellent service from Sentinel Maintenance, honest and good response for heating repairs. I did research so I knew ahead of time what basic repairs were needed. On short notice staff and service were great! I’d recommend this company!!!!

Lillian L., Missoula, MT

Great company with efficient and knowledgeable employees. Highly recommended for both large and small jobs.

Dane S., Missoula, MT

Excellent work and workers! My restaurant had our water heater break down right before the weekend and these guys found a replacement and had it installed the same morning! Fast, friendly and knowledgeable, we couldn’t ask for better. Thank you!

Andrew K., Missoula, MT

Serving Missoula’s heating, venting and plumbing needs since 1987!


Do you need help with a plumbing, heating, ventilation, or air conditioning project? Let us know what you would like help with and we will be in touch.