Custom Mechanical Equipment is a custom manufacturer—not a distributor. Every PMZ Multizone system, and rooftop screen is built to your exact project requirements. With more than 36 years of experience, we provide expert support from design and fabrication through project completion.
Or call us now: (866) 687-9803
5,000+
Installations Nationwide
Schools, healthcare, retail, and buildings that cannot shut down for long
36+
Years in Multizone HVAC
Third-generation, family-owned. Spec support from people who know your job.
Up to 40%
Measured Energy Reduction
Documented at Canyon High School after a PMZ multizone retrofit
Field-Sized
Before We Build
Site visit and measurements matched to your curb and duct layout.
Open
Service Access
Standard commercial parts. Any qualified tech can maintain the unit and keep the warranty valid.
When the equipment does not match the building, you pay twice
Catalog rooftop units rarely match your curb, zones, or electrical layout. Old multizone gear mixes hot and cold air to hit setpoint. When a constant volume unit fails in a school, hospital, or data-heavy facility, every hour offline shows up on someone's report.
When steel is cut to field measurements, surprises disappear.
Product lines
Every product line is custom built to order from one Ponca City campus. Multizone HVAC and rooftop screening are our core work—with in-house powder coat through Custom Powder and Blasting (CPB) when your job needs one responsible shop.
Custom penthouse multizone units, 5–45 tons and 1–18 zones, with independent heating and cooling per zone and no mechanical reheat of cooled air. BACnet controls, field-verified dimensions before fabrication, and lower operating cost than traditional hot deck and cold deck replacements.
Learn more
20+ years screening package units, chillers, cooling towers, and heat pumps to your wind load, elevation, and city requirements. Standard screens: 8–12 weeks. Louvered systems: about 12–14 weeks. Equipment stays accessible for service.
Learn moreThis is what matters when the unit has to fit the roof, pass inspection, and stay serviceable for years to come.
Every PMZ and enclosure is custom built to order from field measurements and your zone layout. We coordinate with your engineer and contractor before steel is cut so curb height, duct connections, and electrical feeds match the drawings.
Traditional multizone systems mix hot and cold air to hit setpoint. You pay twice for the same Btu. CME zones run independently, so you stop mechanically reheating air you already cooled. Owners see the difference on utility bills after retrofit.
Built to the standards your job requires: GAMA, Energy Star, UL Listed, AGA, CGA, and ARI Standard 240 where applicable. Submittals and shop drawings support the inspection path your AHJ expects.
Engineering support during design, coordination through fabrication, and field presence at install and startup. When the schedule compresses, you talk to people who built the unit.
Variable-speed blowers, BACnet controls, and conventional refrigerant circuits use standard commercial parts. Your service contractor can maintain the warranty without a factory-only truck roll.
Case Study
Canyon High School · PMZ Multizone Retrofit
40.7%
Reduction in electricity use
$146,188
Annual energy cost savings
In Summer 2022, Canyon High School upgraded to CME PMZ multizone systems. Three years of utility data show the impact: 1,274,206 kWh less electricity per year, 40.7% lower consumption, and $146,188 in annual combined gas and electric savings. Improved zone control eliminated simultaneous heating and cooling — and consumption keeps trending down.
Testimonials
From reps, integrators, and owners who have had our equipment in the field.
Manufacturer's rep · Commercial HVAC specification
“CME answers the phone, knows the product line, and follows through. From first inquiry to startup, they treated our schedule like it mattered. I specify them to owners who need a mechanical partner they can count on .”
Electrical racks & skid buildings · Multi-project fabrication partner
“We have purchased hundreds of electrical racks, more than a dozen skid-mounted buildings, and a long list of custom fabricated items from CME. When our scope changes mid-job, they adapt. They go the extra mile so we can deliver a solid product to our clients.”
Tight schedules & equipment lead times · Rep firm partnership
“Tight lead times and compressed schedules are normal for us. Connor and the CME team know the equipment, show up when the job gets hard, and stay committed until each project is done . That is why we keep sending work their way.”
FAQ
What mechanical contractors, engineers, and facility managers ask before the first submittal.
Custom Mechanical Equipment works around your schedule to get your project done. As the PMZ3 is a perfect replacement for traditional multiline systems already on buildings, we don't have to do any rework inside of the building itself. We come out to measure the existing curb and supply ductwork, designing our unit to match your building's current conditions.
We look at your existing equipment, operating schedule, and utility rates, then model how a PMZ Multizone system would perform for your building. Case studies like Canyon High School's 40.7% reduction in electricity use help ground those estimates in real-world results.
Yes. PMZ Multizone units ship with BACnet IP or MS/TP controls so they can integrate with most modern building automation systems. Part of our upfront review is confirming how the new equipment will tie into your existing controls and what, if any, adjustments are needed.
Ideally, screening is coordinated during design development or early in the submittal process so it can be detailed alongside the HVAC equipment layout. CME is frequently brought in late and can still help you avoid delays by moving quickly once the rooftop layout is confirmed.
Yes. Most projects involve a local mechanical contractor and an architect of record. CME coordinates with both teams to review the rooftop layout, screening requirements, and color selections so the final system fits the building and complies with local expectations.
Lead times depend on project size and finish selections, but our standard screens usually take 8-12 weeks, while our louvered systems take about 12-14 weeks. There are occasions when we can meet shorter timelines if necessary; during your discovery call, CME can provide a project-specific lead time range.
Send your schedule, zone count, and preliminary tonnage. We reply within one business day with next steps and a real person on the line. A 15-minute call is enough to see if CME fits your job. No obligation.
Certifications
Built to the standards your inspector and owner expect, documented before the equipment ships.
