HVAC Retrofit Engineering in Marquette, MI

Marquette is the Upper Peninsula's largest city — a Lake Superior port with a mining heritage, Northern Michigan University, and UP Health System — where 200-plus inches of annual snowfall and harsh lake-effect winters dominate every engineering decision.

What we engineer

Heat-pump and VRF/VRV conversions replacing gas and aging electric systems; dedicated outdoor air systems (DOAS) with energy recovery for humidity control; chiller and boiler plant retrofits; pneumatic-to-DDC controls upgrades; and refrigerant transitions off high-GWP HFCs per the AIM Act phasedown — full mechanical design with load calculations per ACCA Manual N / ASHRAE, ventilation per ASHRAE 62.1, and energy compliance per ASHRAE 90.1 and IECC.

Compliance & incentive stacking

NYC Local Law 97, Boston BERDO, Denver Energize Denver, Washington's Clean Buildings Performance Standard, Maryland BEPS, St. Louis BEPS — we engineer the HVAC retrofits that hit building performance standard targets, and we stack utility rebates (ComEd, Xcel, Mass Save, NYS Clean Heat, Energy Trust of Oregon, Efficiency Maine, Focus on Energy) to cut net project cost.

Backed by licensed PEs

All HVAC retrofit engineering is backed by Apex Grid Engineering: 10+ PEs licensed across 49 states, 20+ engineers, 15+ years of plan sets that pass plan check.

Project types

• Healthcare & hospital facilities
• University & institutional
• Industrial & mining support
• Hospitality & waterfront
• Retail & commercial
• Public & civic

Everything else your project needs

HVAC Retrofit Engineering nearby

Allen Park · Ann Arbor · Battle Creek · Bay City · Clinton Township · Dearborn Heights · Dearborn · Detroit · East Lansing · Farmington Hills · Flint · Grand Rapids