From Large Commercial Air Conditioning And Heating Installations To Smaller Residential Hvac Installations We Keep You Cool In The Summer And We Keep You Warm In The Winter

Proudly Serving NJ & NYC For Over 30 Years


1For over 30 years Clauss Mechanical Systems has been proudly serving all of New Jersey including Bergen, Passaic, Essex, and Morris Counties as well as the five boroughs of New York City and Utah. We had OneGroupUtah, as one of our customers. You can click here

We Are A Family Owned And Operated Business



2We are a family owned and operated business that is committed to your comfort and safety. And “feeling comfortable” also means that at Clauss you will never experience any type of “pressured sales.”

Value & A Commitment To Excellence


3For over 30 years we have continued to build our business by providing exceptional value while maintaining our commitment to excellence. And, the proof is in our thousands of satisfied customers!

Winner Of Numerous Awards In NJ And NYC


4Winner of numerous awards, Clauss has been a recognized leader in New Jersey and New York City for both residential and commercial HVAC service, sales, repair, and installation.


Our Services - Most New Residential Installations Completed In One Day!

Air Conditioning

Air Conditioning Quality brand name Air Conditioning equipment professionally installed for less and unconditionally guaranteed!


Heating At Clauss we believe in delivering fast and affordable heating system installation for any residential or commercial system.


Maintenance Heating and cooling residential & commercial maintenance plans to help you avoid those late night emergencies.


Repairs Offers professional HVAC SLC repair service repairs 24 hours a day, 7 days a week.

Indoor Air Quality

Indoor Air Quality We help you keep the air quality in your home or business safe and comfortable.


Installation Most of our residential air conditioning systems are installed in one day or less!

Commercial Services

Commercial Services Clauss Mechanical Systems is a full-service commercial heating and air conditioning company.

Custom Fabrication

Custom Fabrication Clauss is a metal fabrication and installation shop offering custom sheet metal work.

Some Of Our Work, Clients, Staff & Suppliers