MEP As-Built Services
MEP As-Built Surveys & Scan-to-BIM for NYC & the Northeast
Accurate • Comprehensive • Code-Ready • Digital Twin Ready
Renovation and retrofit projects depend on reliable MEP as-built drawings, MEP CAD plans, and Scan-to-BIM models. At G&P Associates, we deliver high-accuracy 3D laser scanning, MEP as-built documentation, digital twin datasets, and verified point cloud models to ensure your team starts with clarity—not guesswork.
We support all of NYC, NY, NJ, CT, PA, MD, MA, and the DC Metro Area.
What We Deliver: MEP As-Built & Scan-to-BIM Packages
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MEP CAD as-built drawings — mechanical, electrical, plumbing, HVAC, fire-protection
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Scan-to-BIM MEP models — Revit, AutoCAD, Rhino, IFC
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Point cloud files — RCP, E57, LAS
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Reflected ceiling plans (RCPs) and MEP layout drawings
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As-built MEP shop drawings
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Historic building MEP documentation
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Residential MEP as-built surveys
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Commercial MEP as-built surveys
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Digital twin models for lifecycle management & FM
All deliverables follow your CAD/BIM standards or our optimized templates.
Our Workflow: Fast • Accurate • Low Disruption
1. 3D Laser Scanning of Mechanical, Electrical & Plumbing Systems
We use high-definition LiDAR for MEP scanning, capturing ductwork, piping, conduit, risers, wiring, HVAC equipment, and utility pathways — ideal for MEP as-built documentation and digital twin creation.
2. Multiple Scan Positions for Full Coverage
We perform multiple setups to document mechanical rooms, ceiling voids, tight spaces, vertical shafts, and congested mechanical zones — producing complete MEP point cloud coverage.
3. Point Cloud Registration & Processing
All scans are aligned, cleaned, and merged into a unified existing-conditions point cloud, ready for MEP CAD drafting, Scan-to-BIM modeling, or digital twin integration.
Deliverables include RCP, E57, PTX, PTS and LAS formats.
4. CAD & BIM Production (Scan-to-CAD / Scan-to-BIM)
We extract:
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MEP as-built floor plans
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RCPs
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Electrical layouts
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Plumbing layouts and risers
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HVAC ductwork models
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Fire-protection as-builts
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MEP BIM coordination models
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Digital twin MEP data sets
Our models integrate directly into Revit, AutoCAD, Rhino, IFC, and FM platforms.
Why MEP As-Builts Matter
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MEP systems are complex — mechanical, electrical, plumbing, and fire-protection require accurate documentation.
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Older buildings and retrofits often have undocumented changes — making MEP as-built documentation essential.
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Accurate MEP Scan-to-BIM models reduce design errors and prevent costly clashes during construction.
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A digital twin provides long-term lifecycle visibility for facility managers and building owners.
Why Choose G&P Associates
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±1/8" accuracy — industry-leading MEP as-built precision
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Digital twin ready — compatible with FM & lifecycle management platforms
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Fast turnarounds from scanning to MEP CAD drawings and MEP BIM models
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Minimal disruption — no intrusive hand-measuring
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Expert CAD/BIM team — AutoCAD, Revit, Rhino, SketchUp, MicroStation
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Secure cloud access with 24/7 hosting and markups
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Trusted across the Northeast — NYC, NJ, CT, PA, MD, MA, DC
Our digital twin + MEP as-built documentation workflow reduces change orders, eliminates guesswork, and ensures smoother coordination.
Local Service Areas
New York (NYC + Upstate)
NYC, Long Island, Westchester, Albany, Buffalo, Watertown, Syracuse
New Jersey
North/Central NJ, Jersey City, Hoboken, Newark, Jersey Shore
Connecticut
Stamford, Norwalk, Hartford, Greenwich, Darien
Pennsylvania
Philadelphia, Pittsburgh, Scranton, Allentown, Harrisburg
Maryland
Baltimore, Silver Spring, Bethesda, Frederick
Massachusetts
Boston, Cambridge, Great Barrington, Pittsfield
Washington, DC Metro
Request an MEP As-Built or Digital Twin Quote
Start your project with accurate MEP as-built data, a verified MEP point cloud, and a digital twin you can trust.
Call Today: 607-327-1106
Email: cgibbons@gpassociates.org
Chiller Plant Upgrade - Philadelphia, PA
Type: MEP (mechanical, electrical, piping)
- Chiller Plant Upgrade :Philadelphia, PA
- 3d laser scanning MEP as-built services of chiller plant facility in the Philadelphia, PA area.
- Complete MEP as-built 3d-AutoCAD model of piping, valves, equipement, and structural steel using laser scan point clouds.
- Our as-built drafting services for the Philadelphia facility where used to create as-built p&id drawings for engineering design, clash detection, and coordination drawings.
Chiller Plant - Staten Island, NY
Type: MEP (mechanical, electrical, piping)
- Provided MEP 3d laser scanning drafting as-built services of chiller plant facility on Staten Island, NY.
- Complete Revit MEP as-built of electrical conduit, ductwork, hot and cold water piping, valves, equipement, and structural steel using laser scan point clouds.
- Our as-built drafting services for the Staten Island facility where used to connect tie-in points, clash detection of new piping, and construction coordination drawings.
MET Museum Gallery
Type: MEP (mechanical, electrical, piping)
- Provided NYC MEP 3d laser scanning drafting as-built services for a MET Museum gallery.
- Complete Revit MEP and structual as-built of ductwork, structural steel, ceiling hangars and columns.
- Our as-built drafting services for the MET Museum is used for new exhibit designers to know what locations they can safely place equipment in the ceiling.
Electrical Substation- New Jersey
Type: MEP (mechanical, electrical, piping)
- Electrical Substation As-Built :New Jersey
- NJ 3d laser scanning as-built drafting services of an electrical substation.
- Produced 2d and 3d as-built AutoCAD model of piping, valves, equipement, and structural steel using laser scan point clouds.
- Our as-built drafting services for the New Jersey substation where used to create as-built p&id drawings for engineering design, clash detection, and coordination drawings.
Process Plant As-Built - NYC
Type: MEP (mechanical, electrical, piping)
- Provided MEP and Structural 3d laser scanning drafting as-built services of process plant in NYC.
- Complete 3d AutoCAD model as-built of electrical conduit, ductwork, hot and cold water piping, cable-tray, pipe hangars, valves, equipement, and structural steel using laser scan point clouds.
- Our as-built drafting services for the New York City facility where used to connect tie-in points, clash detection of new piping, and construction coordination drawings.
Electrical Substation - Brooklyn, NY
Type: MEP (mechanical, electrical, piping)
- Provided NYC MEP as-built laser scanning drafting services of complete NYC substation including roof.
- MEP laser scanning as-built model consisted of the entire structure including piping, mechanical, electrical, equipment, roof, surfaces etc.
- Our as-built drafting services where used to plan for a major upgrade to the NYC electrical substation.
Electrical Substation, Hartford, CT
Type: MEP (mechanical, electrical, piping)
- Electrical Substation As-Built :Hartford, CT.
- 3d laser scanning MEP as-built services of an electrical substation in Hartford, CT.
- Produce a MEP 3d as-built AutoCAD model of piping, valves, equipement, and structural steel using laser scan point clouds.
- Our as-built drafting services for the Hartford, CT facility where used to create as-built p&id drawings for engineering design, clash detection, and coordination drawings.
Chemical Refinery As-Builts
Type: MEP (mechanical, electrical, piping)
- We have provided over the years numerous 3d laser as-built drafting scanning services for chemical refineries.
- Accurate as-builts allow owners to avoid re-work and for prefabrication of new piping during an upgrade.
- Disaster preparedness is another advantage to have accurate as-builts. If there is a fire or an explosion the damagde area can be quickly rebuilt.
NY State Utilty Towers
Type: MEP (mechanical, electrical, piping)
- 3d laser scanning as-built drafting service of several elecrical utility towers in NY State.
- Produced as-built drawings and Scan to BIM model of the NY towers to depict parts and dimensions for engineering purposes.
