About Us

South Jersey Plumber
Help From a Friend!
Blau Mechanical LLC is an owner-operated plumbing, heating and air conditioning contractor. We take an old-fashioned tradesman and business approach to operating Blau Mechanical LLC, and the owner, David Blau, will work with you personally one-on-one.

David Blau is certified as an A/C and heat pump professional, heating professional, envelope professional and building analyst professional.

David Blau has earned the following credentials from the New Jersey Department of Community Affairs: Plumbing Inspector HHS, Mechanical Inspector, Plumbing Sub-Code Official and Construction Official. He attends state-mandated seminars on current practices in order to maintain these licenses. David Blau is also certified by the New England Water Works Association to inspect and test backflow preventers (certification #7223).

Blau Mechanical LLC is an EPA lead-safe certified firm (certification # NAT-104437-1) and a NATE (North American Technician Excellence) quality circle contractor (ID #1037406). And we are accredited and rated A+ with the Better Business Bureau.

Better Business Bureau (BBB) Environmental Protection Agency (EPA) NATE (North American Technician Excellence) New England Water Works Association
South Jersey Plumber
Help From a Friend!
Blau Mechanical, LLC. Mt. Laurel, NJ 08054. Phone 856-235-0030.
South Jersey Plumbing, Heating, and Air Conditioning
David Blau NJ Master Plumber & Master HVACR Contractor
NJ Master Plumber Lic #36BI00938800
NJ Master HVACR Contractor Lic #19HC00017100
NJ Home Improvement Contractors Reg #13VH03904600
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