PE-stamped engineering for the structural, MEP, electrical, plumbing, civil, and geotechnical problems that come up on commercial, industrial, and residential projects — described in plain terms, engineered properly.
Talk to an EngineerAdding a new door, window, or pass-through to a commercial or residential building isn't simply a contractor d…
Cutting openings in concrete masonry unit (CMU) or brick walls requires engineering that goes beyond wood-fram…
A lintel or header carries the load from the structure above a wall opening — its design depends on the span, …
Removing a load-bearing wall requires structural engineering — a beam must replace the wall's load-carrying fu…
Deteriorated, undersized, or damaged beams need engineering — whether you're replacing a failing beam in an ex…
Every rooftop unit needs a structural analysis before installation — the engineer verifies the roof framing ca…
RTU replacement often involves a heavier unit than the original — structural engineering verifies the roof can…
Generator installations need engineered concrete pads, vibration isolation design, and seismic anchorage calcu…
Transformers, switchgear, and large electrical equipment need properly engineered concrete pads that account f…
Battery energy storage systems are heavy, and the foundation or pad they sit on must be engineered for the equ…
Every commercial rooftop solar installation needs a structural analysis — verifying the roof framing can handl…
Solar carport structures are standalone canopies designed to support PV panels over parking — structural engin…
Parking canopies — whether shade structures, EV charging canopies, or solar carports — need structural enginee…
Mezzanines in commercial and industrial buildings need structural engineering — floor framing design, column a…
Equipment platforms in industrial and mechanical rooms need structural engineering — supporting rooftop chille…
Change-of-occupancy projects often trigger structural review requirements — the new use may impose higher floo…
Building departments frequently require PE-stamped structural reports before they'll approve a renovation perm…
When a building was constructed without drawings, has unknown structural modifications, or shows signs of dist…
Not every foundation crack is structural — but some are. A licensed structural engineer can distinguish betwee…
Building settlement — whether from soil consolidation, inadequate foundations, or expansive soils — causes cra…
Structural maintenance engineering addresses the repairs that keep existing buildings safe and code-compliant …
Receiving structural plan check comments from a building department is a normal part of the permitting process…
Structural permit calculations document the engineering basis for the structural design — member sizes, connec…
Commercial structural engineering covers new construction, additions, renovations, tenant improvements, and ex…
Commercial renovation projects — tenant improvements, building remodels, floor plan changes, and system upgrad…
New commercial construction requires full engineering across structural, MEP, civil, and geotechnical discipli…
Engineering engaged during design development — before construction documents — catches structural and MEP con…
Construction field conditions sometimes require real-time engineering decisions — unexpected framing, obstruct…
Once a project is permitted and under construction, engineering questions, RFIs, and field conditions continue…
Before acquiring a commercial building, investors and developers need to understand structural conditions — ex…
Commercial permit sets require stamped MEP drawings — mechanical, electrical, and plumbing plans that match th…
Restaurant permit packages are some of the most complex commercial MEP submittals — kitchen exhaust calculatio…
Tenant improvement MEP permit packages scope existing building systems, design modifications for the new use, …
Multifamily permit packages require coordinated MEP drawings for unit systems, common area MEP, EV charging, a…
Medical office MEP permit packages must address clinical ventilation requirements, dedicated equipment circuit…
Fitness club MEP engineering addresses one of commercial construction's highest latent load challenges — sweat…
MEP permit calculations document the engineering basis for mechanical, electrical, and plumbing designs — conf…
Commercial MEP engineering covers mechanical, electrical, and plumbing design for office, retail, restaurant, …
Architecture firms regularly face peak capacity situations — more active projects than their current engineeri…
Engineering coordination in CAD and Revit environments keeps structural, MEP, and civil engineering aligned wi…
Engineering relationships built over multiple projects deliver compounding value — the engineer knows your sta…
MEP systems — HVAC, electrical service, plumbing infrastructure — are major cost drivers in commercial real es…
Type I kitchen exhaust engineering starts with accurate CFM calculations per NFPA 96, then works through duct …
Make-up air is the other half of the kitchen exhaust equation — for every CFM exhausted, make-up air must repl…
Grease exhaust duct design requires more than a correctly sized duct — NFPA 96 mandates specific materials, ve…
Commercial kitchen gas piping engineering calculates the total BTU load from every piece of cooking equipment,…
Commercial HVAC replacement isn't always a like-for-like swap — if the existing system is undersized, the buil…
Warehouse HVAC engineering selects and sizes the system that best matches the use — from basic heat-only wareh…
Warehouse ventilation engineering provides the air exchange calculations, fan selection, and permit drawings f…
Gym HVAC engineering is fundamentally a latent-load problem — occupants exercising generate enormous amounts o…
Indoor pool and natatorium mechanical engineering centers on dehumidification — evaporation from the pool surf…
Negative-pressure rooms protect adjacent spaces from airborne contaminants — whether in a healthcare setting, …
Laboratory ventilation engineering designs the 100% exhaust air systems that dilute chemical vapors, remove bi…
Fume hood engineering goes beyond picking a duct size — face velocity requirements, minimum sash height design…
Data center cooling engineering designs for continuous operation — selecting cooling systems with N+1 or 2N re…
Server rooms in commercial office buildings need dedicated cooling systems — standard building HVAC won't main…
Mechanical plan check comments frequently request additional calculations, equipment specifications, duct sizi…
Electrical service upgrades need an engineer when the load growth exceeds the existing service, when EV chargi…
An electrical load study quantifies what your building's electrical system can handle before you add new equip…
Adding EV charging to an existing building starts with a load study — determining how much charging the existi…
Fleet EV charging engineering sizes the electrical service for a depot or garage where dozens to hundreds of v…
Multifamily EV charging presents a unique challenge — dozens to hundreds of residents want to charge at home, …
Generator installation engineering designs the automatic transfer switch, generator wiring, critical load pane…
Emergency and standby power systems are designed to different standards — emergency systems (NEC Article 700) …
UPS engineering goes beyond selecting a battery backup unit — runtime calculations, static transfer switch des…
Switchgear replacement requires engineering that minimizes the duration of power outages, sequences protective…
Panel replacement — whether from age, inadequate capacity, or recalled equipment — requires engineering that v…
Solar interconnection engineering produces the PE-stamped single-line diagrams, interconnection calculations, …
Battery energy storage electrical engineering designs the bidirectional inverter connections, AC and DC protec…
Electrical plan check comments commonly request load calculation documentation, one-line diagram corrections, …
Multi-story building plumbing risers must be sized for peak simultaneous demand, routed to minimize noise and …
Undersized domestic water mains cause low pressure at the end of the run — the daily complaint that's expensiv…
Commercial water heater engineering sizes the recovery capacity and storage volume for the actual demand profi…
Grease interceptors protect the municipal sewer from fats, oils, and grease — and the local authority having j…
Medical gas systems — oxygen, medical air, vacuum, nitrous oxide — require NFPA 99-compliant engineering, lice…
Plumbing plan check comments often request fixture unit calculations, water sizing documentation, grease inter…
A parking lot is a civil engineering project — grading for drainage, pavement design for vehicle loads, ADA ac…
Expanding an existing parking lot requires civil engineering that matches the existing grade and drainage patt…
Gravel parking areas require civil engineering when a permit is required — grading for drainage, geotextile fa…
Turn lane improvements — whether required by a traffic impact study or added to improve site access safety — r…
Commercial driveways need civil engineering — access width, turning radius for delivery vehicles, sight distan…
Ponding water, flooding, and erosion on a commercial site are civil engineering problems — requiring analysis …
Stormwater management is required on virtually every commercial development — controlling runoff rate, volume,…
Commercial utility connections — new water and sewer services, electrical duct banks, gas line extensions — re…
Failed or failing parking lots need engineering before rehabilitation — pavement condition assessment, subgrad…
Civil plan check comments often involve drainage calculations, grading revisions, stormwater compliance, utili…
Commercial civil engineering covers site development, grading, drainage, utilities, parking, and access improv…
Engineering input before development decisions are finalized can prevent costly surprises — structural constra…
Commercial building permits typically require a geotechnical report — soil borings, laboratory testing, and en…
Multifamily geotechnical reports cover the full site — enough borings to characterize the soils under the buil…
Parking lot pavement fails prematurely when the subgrade isn't properly characterized — geotechnical engineeri…
Soil borings are the foundation of geotechnical engineering — physically sampling the subsurface at key locati…
Multifamily soil boring programs are designed to characterize the full site — enough borings to capture variab…
Foundation recommendations from a geotechnical report tell the structural engineer what they actually need to …
Pavement subgrade evaluation characterizes the soil that the pavement structure will be built on — providing t…
Expansive soils — particularly the clay soils common in Texas, Arizona, Colorado, and the Southeast — swell wh…
Settlement analysis calculates how much a foundation will settle under load — both total settlement and differ…
Retaining wall geotechnical engineering provides the lateral earth pressure parameters, foundation bearing cap…
Plan check comment letters are the building department's request for more information or design changes — engi…
A PE stamp on structural plans means a licensed structural engineer designed or thoroughly reviewed the work, …
PE-stamped MEP plans represent full professional engineering responsibility — mechanical, electrical, and plum…
Engineering redlines — marking up drawings with required corrections — and formal design revisions are a norma…
Permit corrections — whether from plan check, a field inspection failure, or a stop-work order — need engineer…
When a project is on a hard schedule — a lease commencement date, a franchise opening, or a contractor ready t…
The most common way Apex Grid starts a project: the architect sends us their drawings — PDF, CAD, or Revit — a…
A permit resubmittal is only as effective as the technical engineering behind it. Apex Grid engineers complete…
Permit correction engineering addresses plan-check comments, failed inspections, field discrepancies, and miss…
Yes — we can start engineering from PDF drawings, hand sketches, or even clear photos and field measurements. …
Matterport scans, 3D laser scans, and photogrammetry can significantly accelerate engineering for existing bui…
For many existing-building engineering questions, clear contractor photos with dimensions can answer the engin…
Aging commercial and residential communities need engineering that diagnoses deferred maintenance, prioritizes…
Property owners and managers with multiple commercial properties benefit from a consistent engineering partner…
Capital improvement engineering translates a building owner's investment priorities into engineered designs — …
Building system upgrades — new HVAC, upgraded electrical service, plumbing replacements — require engineering …
Aging HVAC systems — past their design life, running on refrigerants being phased out, or simply no longer per…
Aging electrical infrastructure — Federal Pacific Stab-Lok panels, fuse-based systems, undersized service for …
Federal facility renovation engineering follows UFC design criteria, GSA design standards, and federal energy …
Military dormitory (barracks) renovations are a recurring capital investment for DoD — replacing aging MEP sys…
Military installation parking lot and site improvement projects follow UFC site design criteria — pavement des…
Military recreation facility and site improvement projects — playgrounds, athletic fields, pavilions, and site…
Federal facility switchgear replacement requires engineering that produces UFC-compliant electrical design doc…
We engineer across all disciplines — describe your project and we'll tell you how we can help.
Ask an Engineer