ENGIDESENGINEERING (480) 490-0064 Get a Quote

MEP Stamping in Herndon, VA

Herndon sits in the heart of the Dulles technology corridor — data centers, defense contractors, and tech campuses near Dulles International — with Silver Line transit-oriented development reshaping its downtown and office core.

Get a Quote

49 states · 10+ PEs · Same-day quotes on qualifying scopes · Zero excuses

MEP plan sets we stamp

Mechanical (load calculations, ductwork and ventilation layouts, equipment schedules), electrical (panel schedules, load calculations, single-line diagrams, NEC compliance), and plumbing (fixture counts per IBC Table 2902, riser diagrams, gas and water sizing) — sealed as a coordinated set, not three disconnected trades.

What the reviewer checks

Plan checkers fail MEP sets on undersized ductwork, missing ventilation rates per ASHRAE 62.1, electrical loads that don't match the service size, and fixture counts that don't meet code. Our PE review catches those before submittal — sealed sheets that actually match the calculations behind them.

Send the full package

PDF plan set, equipment cut sheets, and any energy compliance forms (Title 24, COMcheck) you already have. Partial sets welcome — we flag what's missing so your first submittal is complete. Backed by Apex Grid Engineering: 10+ PEs across 49 states, 20+ engineers.

Project types

  • Data center & mission critical
  • Tech office & defense
  • Mixed-use transit-oriented
  • Corporate headquarters
  • Multifamily residential
  • Light industrial & flex

Everything else your project needs

MEP Engineering in Herndon

Mechanical, electrical & plumbing design — permit-ready drawings, best price.

Structural Engineering in Herndon

Structural design, analysis & PE stamping — permit-ready drawings, best price.

Civil Engineering in Herndon

Site civil & land development — permit-ready drawings, best price.

Electrical Engineering in Herndon

Power distribution, panels & lighting design — permit-ready drawings, best price.

Plumbing Engineering in Herndon

Water, sewer, gas & fixture design — permit-ready drawings, best price.

HVAC Engineering in Herndon

Heating, cooling, ventilation & ductwork — permit-ready drawings, best price.

PE Stamping in Herndon

Licensed PE stamps on your plans — fast turnaround, best price.

Structural Stamping in Herndon

Licensed PE stamps on structural plans & calculations — fast turnaround, best price.

Civil Stamping in Herndon

Licensed PE stamps on civil & site plans — fast turnaround, best price.

Fire Protection Engineering in Herndon

Fire sprinkler, alarm & suppression design — permit-ready drawings, best price.

Plan Check Corrections in Herndon

Plan check comments answered fast — resubmittal-ready corrections, best price.

Energy Modeling & Compliance in Herndon

Title 24, COMcheck & ASHRAE 90.1 compliance — pass plan check, best price.

Tenant Improvement Engineering in Herndon

TI engineering for office, retail & restaurant buildouts — permit-ready, best price.

Low Voltage Engineering in Herndon

Fire alarm, data, security & AV design — permit-ready drawings, best price.

Seismic Retrofit Engineering in Herndon

Earthquake retrofit design & PE-stamped plans — best price.

Solar Engineering in Herndon

PV structural analysis, NEC 690 electrical design & interconnection — permit-ready drawings, best price.

Fire Alarm Engineering in Herndon

NFPA 72 fire alarm design, voice evacuation & mass notification — permit-ready drawings, best price.

Security System Engineering in Herndon

Access control, video surveillance & intrusion detection design — permit-ready drawings, best price.

Building Automation Engineering in Herndon

BACnet controls, BMS design & smart building integration — permit-ready drawings, best price.

Elevator Engineering in Herndon

ASME A17.1 elevator design, modernization & code compliance — permit-ready drawings, best price.

Industrial Electrical Engineering in Herndon

NEC Article 430 industrial power design, arc flash & hazardous locations — permit-ready drawings, best price.

Plumbing Design Engineering in Herndon

IPC/UPC plumbing design, medical gas & backflow engineering — permit-ready drawings, best price.

HVAC Retrofit Engineering in Herndon

HVAC retrofits, electrification & decarbonization design — PE-stamped mechanical plans, best price.

Electrical Panel Upgrade Engineering in Herndon

Panel upgrades, load calculations & utility coordination — permit-ready drawings, best price.

Emergency Power Engineering in Herndon

Generators, NFPA 110 systems & life-safety power design — permit-ready drawings, best price.

Renewable Energy Engineering in Herndon

Wind, geothermal & hybrid renewable engineering — feasibility, PE-stamped design & interconnection, best price.

Energy Audit Engineering in Herndon

ASHRAE Level 1/2/3 energy audits, benchmarking & retro-commissioning — find the waste, prove the savings, best price.

EV Charging Engineering in Herndon

EV charging station design — NEC 625, load calculations & service upgrades, permit-ready drawings, best price.

Water Treatment Engineering in Herndon

Filtration, disinfection, reverse osmosis & backflow design — permit-ready water engineering, best price.

Battery Storage Engineering in Herndon

Battery storage design per NEC 706 & NFPA 855 — permit-ready drawings, best price.

Commissioning Engineering in Herndon

Building commissioning & functional testing — systems verified to work as designed, best price.

Data Center Engineering in Herndon

Mission-critical MEP for data centers — Tier III/IV electrical, cooling & fire protection, best price.

Generator Engineering in Herndon

Standby generator sizing, ATS & emergency power design — permit-ready drawings, best price.

Lighting Design Engineering in Herndon

Photometric lighting design, controls & code compliance — permit-ready drawings, best price.

Medical Facility Engineering in Herndon

Medical gas, exam-room HVAC & healthcare electrical design — permit-ready drawings, best price.

Commercial Kitchen Engineering in Herndon

Commercial kitchen hoods, grease exhaust, gas & interceptors — permit-ready drawings, best price.

Pool Engineering in Herndon

Pool structural, systems & permits — engineered for plan check approval.

ADU Design in Herndon

Accessory dwelling unit plans — from concept to permit.

Engineering Cost Guide in Herndon

Straight answers on what engineering really costs.