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As-built drawings document the actual physical state of a structure, system, or facility after construction is complete. They capture every field deviation, design change, and last-minute modification made during the build – and serve as the definitive technical record of the finished work.

Enginerio provides professional as-built drawing services for architects, contractors, facility managers, and building owners across the U.S., Canada, the U.K., and Europe. We convert redline markups, site survey data, and point cloud scans into accurate 2D CAD drawings and 3D BIM as-built models using AutoCAD, Revit, and Navisworks.
Our as built documentation covers structural, architectural, MEP, civil, and plant engineering systems – across commercial, industrial, healthcare, institutional, and residential project types.

Software Proficiency

What Are As-Built Drawings?

As-built drawings (also called record drawings) are the final, revised set of construction documents that show a project as it was actually built – including all field modifications, design revisions, and scope changes that occurred during construction. They differ from original design drawings in that they reflect site conditions and decisions made during execution, not just engineering intent.

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    Services we Provide

    Architectural As-Built Drawings

    We prepare detailed architectural as-built drawings that document the final dimensions, spatial layout, wall positions, ceiling heights, door and window locations, finishes, and interior configurations as built on site. Ideal for property owners, facility managers, and retrofit teams requiring accurate floor plans and elevations for future works.

    Structural As-Built Drawings

    Our structural as-built documentation captures the actual position and dimensions of beams, columns, slabs, foundations, connections, and rebar placement as constructed - including any deviations from the structural engineer's original drawings. These are essential for load assessments, renovation planning, and structural audits.

    MEP As-Built Drawings

    We produce as-built drawings for mechanical, electrical, and plumbing systems - covering HVAC ductwork routing, pipe runs, electrical conduit paths, panel locations, plumbing layouts, and equipment positions as installed. Our MEP as-builts support planned maintenance, system upgrades, and compliance with NFPA, NEC, and ASHRAE requirements.

    Civil and Site As-Built Drawings

    We document as-built conditions for site infrastructure, including grading, drainage systems, utility networks, road alignments, site boundaries, and landscaping as constructed. Accurate site as-builts are critical for municipal submissions, utility planning, and future development applications.

    Plant and Industrial As-Built Drawings

    For process plants, manufacturing facilities, and industrial installations, we produce as-built P&IDs, piping isometrics, equipment layouts, and instrumentation drawings that reflect the actual installed configuration. These are used for HAZOP studies, process modifications, and regulatory compliance submissions under OSHA PSM and API standards.

    Revit As-Built BIM Models

    We build as-built BIM models in Revit from redline markups, site measurements, or point cloud data captured via laser scanning. Our as-built Revit models are delivered at LOD 300 to LOD 400 and can be used directly for facility management (COBie data export), renovation design, and BIM-enabled operations and maintenance workflows.

    Redline Markup to CAD Conversion

    We convert contractor-supplied redline markups, hand-annotated PDFs, and field-recorded changes into clean, dimensionally accurate CAD drawings in AutoCAD or MicroStation. Our drafters cross-check all redlines against the original design set and flag any inconsistencies before finalizing the as-built record.

    Point Cloud to As-Built Drawings

    Using 3D laser scan data (point clouds), we extract accurate as built geometry for existing structures and convert it into 2D CAD drawings or full Revit models. This approach is widely used for heritage buildings, industrial retrofits, and renovation projects where field access is limited or the original drawings are unavailable.

    Sectors We Serve

    Enginerio delivers as-built drawing services across a wide range of building types and industries – from commercial offices and healthcare facilities to oil and gas plants and data centers.

    Commercial

    Industrial

    Healthcare

    Residential

    Institutional

    Hospitality

    Oil & Gas

    Data Centers

    Education

    Retail

    Corporate

    Infrastructure

    Benefits of Outsourcing As-Built Drawing Services

    Cost Savings Without Compromise on Accuracy

    Maintaining in-house as-built drafting capability requires investment in software licenses, skilled drafters, and QC processes. Outsourcing to Enginerio gives you access to a fully equipped team at a fraction of the cost – with overhead reductions of up to 60–70% compared to in-house resources.

    Faster Turnaround, Even on Complex Projects

    Our dedicated as-built drafting teams work across time zones and scale resources quickly based on project size and urgency. Whether you need a single floor plan updated or a full facility documented post-handover, we deliver on schedule without compromising drawing quality.

    Access to Specialist Expertise

    As-built documentation requires drafters who understand construction sequences, field tolerances, and the difference between design intent and site reality. Our team includes experienced CAD drafters and BIM modelers with 5+ years of international project exposure across structural, MEP, civil, and industrial disciplines.

    Compliance with Applicable Standards

    Enginerio’s drawings are produced in compliance with AISC, ACI, NEC, NFPA, ASHRAE, ISO 9001, and applicable BS/Eurocode standards. All deliverables undergo a structured QC review before handover to ensure drawing completeness, dimensional accuracy, and standard compliance.

    Formats That Fit Your Workflow

    We deliver drawings in the format your team actually uses – AutoCAD (.dwg), PDF, Revit (.rvt), IFC, or MicroStation (.dgn) – at the LOD and layer structure your project requires. No reformatting required at your end.

    A Single Point of Contact Across Disciplines

    When as-built documentation spans architectural, structural, and MEP systems, coordinating multiple vendors creates friction. Enginerio handles all disciplines under one engagement – with a dedicated project manager ensuring consistent standards, coordinated layers, and a single set of record documents.

    Why Partner with Enginerio?

    Enginerio brings together technical depth, multi-discipline expertise, and a rigorous quality process so that your as-built documentation is accurate, complete, and delivered on time. Here’s what working with us looks like in practice.

    • Experienced CAD drafters and BIM modelers with 5+ years of international project expertise
    • Full-discipline coverage - architectural, structural, MEP, civil, and industrial as-built documentation
    • Proficiency in AutoCAD, Revit, Navisworks, MicroStation, Tekla, and SolidWorks
    • Point cloud to as-built drawings capability for retrofit, renovation, and heritage projects
    • Revit as-built models delivered at LOD 300–400 for BIM-enabled FM workflows
    • Compliance with AISC, ACI, NFPA, NEC, ASHRAE, ISO, BS, and Eurocode standards
    • Structured QC process - peer review, PM check, and QA specialist sign-off on every deliverable
    • Delivery centers across the US, India, and Europe for time-zone advantage
    • Cost-effective, scalable engagement models - from single drawings to full-facility documentation
    • 99.99% accuracy target on all final deliverables
    Why Partner with Enginerio for PO Management Support (1)

    What our customers say about us

    "Enginerio has become a one-stop solution for a variety of Engineering Drawing and Mechanical Animation work for my team at Sage Glass.

    Enginerio team was able to understand our requirements, create POC to freeze the quality and execute right on time. The Animations, Models and Drawings delivered by Enginerio are currently been used by our global teams.

    I strongly recommend Enginerio and will continue to use their services."
    Rathish ArumugamSage Glass
    "I recently used Enginerio’s scan to BIM modeling services for a renovation project. The team was professional, efficient, and communicative throughout the entire process. They were able to provide incredibly accurate detailing which allowed us to easily visualize the existing structure in 3D and make precise design decisions. I’m quite happy with the results.”
    Owner,Scan to BIM Company, USA
    “Your BIM team was quick in resolving all the clashes as per our expectations and timelines. Their prompt response helped our project team stick to our customer’s timelines. Once your team took over, they were flexible to add more experts to ensure we completed the project on time. Your Project management and timely communication is highly commendable.

    It was nice working with you and we will be happy to work with you again in the future on some new projects.”
    Project Manager - BIMLarge Architect Firm in Europe
    “Enginerio provided us with a cost-effective solution for some of our Piping Design and Drafting tasks and helped us meet our project goals within the set timeline. The team is extremely professional, knowledgeable of Piping engineering and easy to work with. They provide prompt resolution to all your queries and kept you in loop during the entire process. I’d highly recommend their services to anyone looking for affordable piping and plant engineering services.”
    Project Consultant for Oil & Gas Industry
    “Enginerio’s BIM team carefully went through the drawing set and provided us with superior 3D models that were in line with our expectations and further helped us with 2D Detailing for further fabrication works. They were quick to finish the assignment. Their immediacy and work quality are reassuring, and prices were extremely affordable. Thank you”
    Owner, MEP Contractor firm

    Engineering Codes
    and Standards We
    Adhere To

    AISC

    American Institute of Steel Construction

    ACI

    American Concrete Institute Standards

    NEC

    National Electrical Code

    NFPA

    National Fire Protection Association

    ASHRAE

    American Society of Heating, Refrigerating and Air-Conditioning Engineers

    ISO

    ISO 9001 Quality Management

    BS

    British Standards

    EC

    Eurocode

    Architectural
    Success Stories

    SolidWorks And Animation Services For Curtain Wall Facade Project

    Read Case Study

    Outsource As-Built Drawing Services to Enginerio

    Get accurate, complete as-built documentation delivered on time – across any discipline, any project type, any format. Talk to our team today about your as-built requirements.
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    Frequently asked
    questions

    Shop drawings are produced before or during construction to guide fabrication and installation – they show how components will be made and fitted. As-built drawings are produced after construction to record exactly how the structure or system was actually built, including all field deviations from the original design.
    We work from contractor-marked redline drawings, hand-annotated PDFs, site survey measurements, RFIs and change orders, and where available, point cloud scan data. If you have original design drawings (CAD or PDF), those provide a useful baseline. We will advise on the minimum input required once we understand your project scope.
    Yes. For buildings with no CAD drawings, we work from site measurements, sketches, and photographs – or from point cloud data captured via laser scanning. We rebuild the drawing set from scratch in AutoCAD or Revit, producing clean, dimensionally accurate documentation fit for facility management and future renovation works.
    Our standard BIM models are delivered at LOD 300 to LOD 400, depending on the project scope and the accuracy of input data. For facility management and COBie-compliant deliverables, we can also incorporate asset data attributes at LOD 400–500. We confirm the required LOD as part of the project brief.
    Every drawing set goes through a structured QC workflow – peer review by a senior drafter, project manager check against the original design and redline inputs, and a final review by our QA specialist before handover. Where field ambiguities exist, we flag them to the client for confirmation rather than making assumptions.
    Turnaround depends on project size, discipline scope, and input quality. A standard floor plan set can be turned around in 3–5 business days. Full-facility multi-discipline documentation for large industrial or commercial projects is scoped individually with agreed milestone delivery dates. We work to your timeline and flag any risks early.