Preventive Maintenance, Repairs, and Emergency Service
J.M. Brennan is a single-source mechanical contractor for design, build, and most importantly – service. Our 40 service technicians have the knowledge and experience to handle a full range of HVAC, plumbing, and fire protection problems.
J.M. Brennan can provide experts working full-time at your building.
Factory-trained service technicians install quality products and parts.