Each Custom Mechanical Equipment HVAC Unit is specially designed for your specific needs We offer a variety of custom HVAC units including the PMZ Multizone, PUVs, and SRUs. Each unit contains multiple split systems designed for highly efficient and reliable performance in commercial buildings.

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HVAC Screening

HVAC Screening

Each HVAC install is unique, which is why each screening system Custom Mechanical Equipment builds is a custom factory design. Our screening fits to each of your current cabinet’s access points with removable doors. CME’s screening is easily installed, we offer a wide variety of stock colors, or can custom order colors to ensure our screening fits your every need.

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Welcome to Custom Mechanical Equipment

Custom Mechanical Equipment manufactures custom high efficient heating and air conditioning equipment as well as screening units to cover existing HVAC equipment. Our systems offer the most cost effective and innovative approach to heating and cooling with unmatched efficiency, reliability, comfort, and simplicity.

Custom Mechanical Equipment is centrally located in Ponca City, Oklahoma, to serve our nationwide customers.

Recently Custom Mechanical Equipment has added two new companies to their portfolio. Custom Powder and Dustless Blasting offers powder coating, Cerakote, dustless sandblasting and power washing services. Source Fabrication fabricates custom equipment for the oil, gas, renewable energy applications, as well as many other industries.

The CME Team
Since 1999
Multizone HVAC Systems


From the late 1960’s to the early 80’s “hot-deck cold-deck” multizone units were the system of choice for design engineers in most low-rise commercial and institutional buildings. When energy costs escalated with the oil embargo of the late 70’s and early 80’s, traditional multizone systems became obsolete due to the high cost of mixing hot and cold air simultaneously.

In 1986 Dick Peitz conceived an idea to replace existing, worn-out multizone units with multiple, highly efficient, independently controlled systems housed in a customized, rooftop penthouse structure. The first penthouse unit was field-assembled on the roof of a school in West Bend, WI in the summer of 1988. The success of this first venture proved the PMZ concept could provide a viable replacement for thousands of multizone units. The need for multizone units grew in popularity and in 1999 Dick, his son Bill, and grandson Erik opened the doors of Custom Mechanical Equipment in East Troy, WI. Custom Mechanical Equipment relocated to Ponca City, OK in 2003.

Our Products


HVAC Screening


Custom Mechanical Equipment offers custom-designed and custom-built multizone and variable zone HVAC systems. Whether you need heating and cooling in a large commercial building or a single classroom, CME has a solution for you.

Client Testimonials

Here’s what our happy clients we serve have to say about Custom Mechanical Equipment. For more testimonials click here

We have worked with Custom Mechanical Equipment and their dedicated staff for over 15 years. Specifically, we have utilized their Multizone replacement units in the California School Market. This has been a great, cost effective solution for budget conscious school districts. CME has provided responsive engineering support in the design phase, construction phase, and through project completion on well over 20 successful projects. –

Michael Minge, Capital Engineering Consultants, Inc, Lead Engineer 

Michael Minge

Custom Mechanical Equipment has worked steadfastly to ensure that Lodi Unified School District experienced the highest level of excellent customer service. Their staff takes on each job assignment with vigor and tenacity. Their commitment to the details and schedule compliance stands as an example to the industry. The CME staff commits themselves daily to each job assignment and executes on time and within budget. Their positive leadership style is demonstrated by their teams’ skills, job commitment, and cooperative behaviors. – Mitch Slater, Lodi Unified School District, Director of Maintenance and Operations  

Mitch Slater

Customer Locations