Six recent projects, with tonnage and results.

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Airpark Office Portfolio Replacement Program

Sixty-four rooftop units replaced over three summers on a schedule the owner's budget could carry. Eighteen were downsized from a load calc. Rebates covered 14% of equipment cost; the portfolio's summer electric bills fell 19% against a weather-normalized baseline.

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Shea Medical Plaza Design-Build

Three medical suites including a procedure room with designed pressure relationships. In-house design, stamped through our engineer of record, fabricated in our shop, commissioned with a written sequence. Passed mechanical final and the state's healthcare review first time.

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Midtown Tower Retro-Commissioning

A 1989 office tower whose controls had never been finished. Twenty-three measures implemented, the largest being economizers that had been wired shut for a decade. Measured savings at twelve months: 24% of HVAC electric, payback under ten months.

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Deer Valley Manufacturing Make-Up Air

A manufacturer whose process exhaust had the building under negative pressure and the doors hard to open. Designed and installed make-up air with evaporative pre-cooling for the summer, controlled to building pressure. Doors open; shop is 12 degrees cooler in July.

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Mill Avenue Restaurant Group

Three downtown Tempe restaurants for one group, built in sequence. Make-up air sized with margin because the hood schedule changed twice, which it did. All three passed mechanical and fire final on the first inspection.

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Tempe Tech Center VRF

A 1962 office building with no plenum space got a heat-recovery VRF system with ducted DOAS for ventilation. Tenants control their own zones; the owner's electric bill fell 31% in the first year against the old split systems.