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It's time to have your heating system checked before winter.

Call us to schedule a heat check before it gets cold.

Best of Denton

2019 Best of Denton

Voted "Best Heating and Air Conditioning Company"

We are honored to have been chosen as the winner of The Best Heating & Air Conditioning Company in Denton for the last 6 years.  Our first place wins include 2014, 2015, 2016, 2017, 2018, 2019. 

Click on the button above to see the full publication for 2019.  We're located in the For the Home category. 

About Us

We service the Denton and surrounding areas


Denton, Corinth, Argyle,  Lake Dallas, Sanger, Krum, Justin, Ponder, Oak Point, Aubrey, Pilot  Point, Flower Mound, Highland Village and Corinth. 

Established in 1969

1969 work van

 Work Environmental Systems was founded by Peter Work in 1969.  We repair,  maintain and install/replace residential and commercial HVAC systems.  

Not only do we have a large residential customer base, many of the area businesses and churches depend on us to keep their systems running.

Repair and Replace Options


We are here  to provide all of your Repair, Service and Installation needs.   Our qualified technicians make sure the job is done right the first  time.  No matter when your heating or cooling emergency occurs rest assured that we are available 7 days a week.  We sell service and repair central heat and air conditioning units, ductless mini split  units, PTAC units and package units.