AI for Building Engineers
Find technical answers in O&M manuals, specifications, and maintenance procedures in seconds. PM Assist gives building engineers AI-powered search across all their building documentation, with source-cited answers you can trust.
Why Building Engineers Need Better Access to Technical Documentation
Building engineers are responsible for keeping complex mechanical, electrical, and plumbing systems running reliably. When equipment develops a fault, when a planned maintenance task requires specific procedures, or when a tenant reports an issue, engineers need fast access to the technical information stored in O&M manuals, manufacturer documentation, and maintenance procedures.
In practice, this information is rarely at their fingertips. O&M manuals are typically delivered as large PDF files or printed binders, running to hundreds or thousands of pages per building. A single commercial office building might have separate O&M packs for HVAC, electrical distribution, fire systems, lifts, BMS, plumbing, and specialist equipment. Finding the right piece of information means knowing which document to look in, then manually searching through that document page by page.
This is particularly challenging during fault-finding. When a chiller trips on a high-pressure fault, the engineer needs to quickly find the fault code definitions, the recommended diagnostic procedure, and the operating parameters for that specific unit. Searching through a 400-page O&M manual while the building is overheating is not an effective use of an engineer's time or expertise.
The problem is compounded by the reality that building engineers often work across multiple sites, each with different equipment from different manufacturers. Remembering which procedures apply to which equipment at which building is an unreasonable expectation, especially for less experienced engineers who are still building their knowledge of building services systems.
How AI Helps Building Engineers Find Answers
PM Assist transforms your O&M manuals and technical documentation into an AI-powered knowledge base that building engineers can query in plain English.
1. Upload Your O&M Documentation
Upload O&M manuals, equipment specifications, maintenance procedures, wiring diagrams, and manufacturer technical data as PDF files. PM Assist processes and indexes every page automatically, including scanned documents using OCR technology.
2. Ask Technical Questions On Site
From your phone, tablet, or laptop, ask questions about fault codes, isolation procedures, maintenance intervals, operating parameters, or any other technical information. The AI understands engineering terminology and building services context.
3. Get Source-Cited Technical Answers
Receive answers with references to the exact document, page, and section where the information was found. Verify every answer against the original manufacturer documentation before carrying out maintenance or making engineering decisions.
Features Built for Building Engineers
Semantic Search That Understands Building Services
PM Assist uses vector-based semantic search that understands the meaning behind your questions, not just keywords. Ask 'How do I reset the high-pressure trip on the Level 3 chiller?' and the system finds relevant information even if the O&M manual refers to it as 'HP fault reset procedure' or 'compressor safety cutout reset sequence'. The AI bridges the terminology gap between how engineers ask and how manufacturers document.
Instant Answers During Fault-Finding
When building systems fail, every minute counts. PM Assist delivers answers in seconds, giving engineers immediate access to fault code definitions, diagnostic procedures, and equipment parameters. No more flipping through binders or scrolling through 400-page PDFs while the building is out of action.
Verified Source Citations
Every answer includes references to the specific O&M manual, page number, and section. Building engineers can verify every response against the original manufacturer documentation before carrying out procedures. This is critical for safety-related work, warranty compliance, and ensuring correct maintenance practices.
Search Across All Building Documentation
A single question can pull answers from multiple documents across different building services disciplines. Ask about the fire damper maintenance requirements and get consolidated information from the mechanical O&M manual, the fire strategy document, and the commissioning records in one response.
Secure and Private
Building documentation is kept secure with per-building data separation, encryption in transit and at rest, and role-based access control. Your documents are not used to train third-party AI models. Each organisation's data is completely isolated.
Works On Site, On Any Device
PM Assist is a web application that works on phones, tablets, and laptops. Building engineers can access their entire document library while on site, standing next to the equipment they're working on. No need to return to the office, call a colleague, or wait until you can access the server to find the information you need.
Questions Building Engineers Ask on Site
Building engineers use PM Assist to find the technical information they need during maintenance, fault-finding, and daily operations. Here are some typical questions:
Built for Engineers Who Work with Buildings
PM Assist is designed for the engineers and technical staff who keep buildings running. If your work involves maintaining, operating, or troubleshooting building services systems, AI-powered document search will change how you access technical information.
Building Services Engineers
Access O&M information, fault codes, and maintenance procedures during your daily work. Find answers across all building documentation without leaving site.
Site Engineers
Get immediate answers to technical questions during maintenance callouts, planned works, and equipment inspections. Search documentation from your phone while on site.
Maintenance Engineers
Find maintenance schedules, spare part references, and service procedures across O&M manuals for all the equipment in your building. Reduce time spent searching for information.
Duty Technicians
Access fault-finding procedures, emergency contacts, and isolation points during out-of-hours callouts. PM Assist is available 24/7 from any device.
Frequently Asked Questions
How does AI help building engineers find technical information?
PM Assist uses semantic AI search to understand technical questions and match them against indexed content from O&M manuals, specifications, and maintenance procedures. Building engineers can ask questions in plain English about fault codes, isolation procedures, maintenance schedules, and equipment specifications, and receive source-cited answers in seconds.
Can I use AI document search on site during fault-finding?
Yes. PM Assist is a web application accessible from any device with a browser, including phones and tablets on site. Building engineers can search O&M manuals and technical documentation while standing next to the equipment, getting immediate access to fault codes, wiring diagrams, maintenance procedures, and commissioning data.
What types of technical documents can building engineers search?
PM Assist supports PDF uploads of any technical document type, including O&M manuals, equipment specifications, maintenance schedules, wiring diagrams, commissioning records, test certificates, as-built drawings, and manufacturer technical data sheets. Each file can be up to 100MB in size.
Is AI document search accurate enough for engineering decisions?
PM Assist provides source citations with every answer, referencing the exact document, page, and section where information was found. This allows building engineers to verify every response against the original manufacturer documentation before making engineering decisions or carrying out maintenance procedures.
How much does PM Assist cost for an engineering team?
PM Assist offers a free tier that lets engineers and small teams trial the product without a credit card. Paid plans scale with the number of buildings and users — full pricing is on the pricing page. There is no per-question or per-search fee, so engineers can search as much as they need during fault-finding without worrying about usage limits.
Does PM Assist work with scanned (image-based) PDF O&M manuals?
Yes. Many older O&M manuals are scanned paper documents with no searchable text layer. PM Assist runs optical character recognition (OCR) on every page during upload, so scanned manuals become fully searchable alongside born-digital PDFs. This is particularly useful for legacy plant where the original documentation only exists as printed copies that have been digitised at handover.
Can PM Assist search wiring diagrams, schematics, and as-installed drawings?
Yes. PM Assist indexes drawings, schematics, and as-installed layouts uploaded as PDFs, including the title block, key, and any associated notes. Engineers can ask questions like "Where is the main electrical isolator for the basement?" or "Which AHU serves Level 4 north?" and the AI returns the relevant drawing with the answer cited to the specific page and sheet number.
How is PM Assist different from a CAFM or CMMS system?
CAFM and CMMS systems track work orders, assets, and PPM schedules — they are systems of record for maintenance management. PM Assist is a system of answers: it sits alongside your CAFM and gives engineers instant access to the technical content inside the underlying O&M manuals, drawings, and certificates. Most teams use the two together — the CAFM raises the job, PM Assist tells the engineer how to do it.
How is PM Assist different from using ChatGPT to ask building services questions?
ChatGPT and other general-purpose AI tools answer from their training data, which means they can hallucinate, give generic advice, or reference equipment you don't actually have. PM Assist only answers from the specific documents you've uploaded for your building, and every answer is cited back to the exact page in the original manual. That makes it safe to use for engineering decisions where the wrong answer has real-world consequences.
Can multiple engineers and contractors share access to the same building?
Yes. PM Assist supports multiple users per building with role-based access control, so a full in-house engineering team plus visiting specialist contractors can all search the same documentation. Permissions can be set per building, so a contractor working on one site only sees documents for that site, not your entire portfolio.
How quickly can an engineering team get up and running with PM Assist?
Most teams are searching their first building within an hour. Sign up takes a minute, create the building, drag and drop the O&M manual PDFs, and indexing typically completes in 5–15 minutes for a standard commercial building O&M pack. There is no installation, no IT deployment, and nothing to configure — it runs in the browser.
Where is the data stored and is it used to train AI models?
PM Assist hosts documents on UK/EU infrastructure with encryption in transit and at rest. Per-building data separation ensures one customer's documentation is never visible to another. Your documents are explicitly not used to train third-party AI models — they are only used to answer questions for users with permission to access that specific building.
Start Finding Technical Answers Faster
Create your free account, upload your O&M manuals and technical documentation, and get instant source-cited answers on site. No credit card required.