Industries we work with.
Industries
We work to understand the needs of various facility types and develop a customized approach every time.
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Why Breen & Sullivan Mechanical Services?
Breen & Sullivan Mechanical Services provides electrical, plumbing, and HVAC services to commercial clients throughout the Boston area. Our skilled and safe technicians specialize in installation, maintenance and repair of commercial and industrial systems. We support a range of industries, including healthcare, education, government and mission critical data centers.
About Us
What Goes Into an HVAC System?
Learn about Built Up and Unitary Systems.
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