HVAC Retrofit Engineering in Spokane, WA
Spokane is the Inland Northwest's commercial hub, anchored by Fairchild Air Force Base, a growing medical district, Gonzaga and Whitworth universities, and a logistics corridor along I-90. Construction contends with real winters — heavy snow loads and deep frost — rather than seismic risk.
49 states · 10+ PEs · Same-day quotes on qualifying scopes · Zero excuses
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
- Medical offices and clinics
- Warehouse and logistics along I-90
- Multifamily infill and student housing
- Fairchild AFB-adjacent industrial
- Downtown adaptive reuse
- Cold-storage and food processing
Everything else your project needs
MEP Engineering in Spokane
Mechanical, electrical & plumbing design — permit-ready drawings, best price.
Structural Engineering in Spokane
Structural design, analysis & PE stamping — permit-ready drawings, best price.
Civil Engineering in Spokane
Site civil & land development — permit-ready drawings, best price.
Electrical Engineering in Spokane
Power distribution, panels & lighting design — permit-ready drawings, best price.
Plumbing Engineering in Spokane
Water, sewer, gas & fixture design — permit-ready drawings, best price.
HVAC Engineering in Spokane
Heating, cooling, ventilation & ductwork — permit-ready drawings, best price.
PE Stamping in Spokane
Licensed PE stamps on your plans — fast turnaround, best price.
Structural Stamping in Spokane
Licensed PE stamps on structural plans & calculations — fast turnaround, best price.
MEP Stamping in Spokane
Licensed PE stamps on MEP plan sets — fast turnaround, best price.
Civil Stamping in Spokane
Licensed PE stamps on civil & site plans — fast turnaround, best price.
Fire Protection Engineering in Spokane
Fire sprinkler, alarm & suppression design — permit-ready drawings, best price.
Plan Check Corrections in Spokane
Plan check comments answered fast — resubmittal-ready corrections, best price.
Energy Modeling & Compliance in Spokane
Title 24, COMcheck & ASHRAE 90.1 compliance — pass plan check, best price.
Tenant Improvement Engineering in Spokane
TI engineering for office, retail & restaurant buildouts — permit-ready, best price.
Low Voltage Engineering in Spokane
Fire alarm, data, security & AV design — permit-ready drawings, best price.
Seismic Retrofit Engineering in Spokane
Earthquake retrofit design & PE-stamped plans — best price.
Solar Engineering in Spokane
PV structural analysis, NEC 690 electrical design & interconnection — permit-ready drawings, best price.
Fire Alarm Engineering in Spokane
NFPA 72 fire alarm design, voice evacuation & mass notification — permit-ready drawings, best price.
Security System Engineering in Spokane
Access control, video surveillance & intrusion detection design — permit-ready drawings, best price.
Building Automation Engineering in Spokane
BACnet controls, BMS design & smart building integration — permit-ready drawings, best price.
Elevator Engineering in Spokane
ASME A17.1 elevator design, modernization & code compliance — permit-ready drawings, best price.
Industrial Electrical Engineering in Spokane
NEC Article 430 industrial power design, arc flash & hazardous locations — permit-ready drawings, best price.
Plumbing Design Engineering in Spokane
IPC/UPC plumbing design, medical gas & backflow engineering — permit-ready drawings, best price.
Electrical Panel Upgrade Engineering in Spokane
Panel upgrades, load calculations & utility coordination — permit-ready drawings, best price.
Emergency Power Engineering in Spokane
Generators, NFPA 110 systems & life-safety power design — permit-ready drawings, best price.
Renewable Energy Engineering in Spokane
Wind, geothermal & hybrid renewable engineering — feasibility, PE-stamped design & interconnection, best price.
Energy Audit Engineering in Spokane
ASHRAE Level 1/2/3 energy audits, benchmarking & retro-commissioning — find the waste, prove the savings, best price.
EV Charging Engineering in Spokane
EV charging station design — NEC 625, load calculations & service upgrades, permit-ready drawings, best price.
Water Treatment Engineering in Spokane
Filtration, disinfection, reverse osmosis & backflow design — permit-ready water engineering, best price.
Battery Storage Engineering in Spokane
Battery storage design per NEC 706 & NFPA 855 — permit-ready drawings, best price.
Commissioning Engineering in Spokane
Building commissioning & functional testing — systems verified to work as designed, best price.
Data Center Engineering in Spokane
Mission-critical MEP for data centers — Tier III/IV electrical, cooling & fire protection, best price.
Generator Engineering in Spokane
Standby generator sizing, ATS & emergency power design — permit-ready drawings, best price.
Lighting Design Engineering in Spokane
Photometric lighting design, controls & code compliance — permit-ready drawings, best price.
Medical Facility Engineering in Spokane
Medical gas, exam-room HVAC & healthcare electrical design — permit-ready drawings, best price.
Commercial Kitchen Engineering in Spokane
Commercial kitchen hoods, grease exhaust, gas & interceptors — permit-ready drawings, best price.
Pool Engineering in Spokane
Pool structural, systems & permits — engineered for plan check approval.
ADU Design in Spokane
Accessory dwelling unit plans — from concept to permit.
Engineering Cost Guide in Spokane
Straight answers on what engineering really costs.
HVAC Retrofit Engineering nearby
Auburn · Bellevue · Bellingham · Bothell · Bremerton · Burien · Burlington · Edmonds · Everett · Federal Way · Issaquah · Kenmore