Heating, ventilation and air-conditioning work can disturb more than the equipment being replaced. Contractors may need to open ceilings, enter risers, remove pipework, drill walls or floors, alter ducts and work around older plant. In London buildings where asbestos may be present, the available asbestos information should be checked before intrusive work begins.
Map the work route, not just the equipment
Define every part of the building the project will affect: plant rooms, boiler rooms, pipe and duct routes, ceiling voids, service risers, penetrations, insulation and fixing points. A survey scope should follow those activities rather than focus only on the new HVAC unit.
Review existing asbestos records
Check the asbestos register and previous surveys for the plant and service areas involved. Pay attention to no-access areas, presumed materials and spaces that were not inspected previously.
For older plant areas, also see our guide to asbestos in boiler rooms and plant rooms.
When might more intrusive information be needed?
A management survey supports routine asbestos management, but planned replacement work may reach concealed materials outside its scope. If the project will disturb building fabric, the affected areas may require a suitably scoped refurbishment and demolition survey before work.
Common areas to consider
- Pipe and duct insulation.
- Plant-room wall, ceiling and floor materials.
- Service risers and boxed routes.
- Ceiling voids and panels.
- Gaskets and older equipment components.
- Fire-protection materials around penetrations and services.
Before HVAC contractors start
Compare the final asbestos information with the contractor’s method and route of work. Relevant findings, assumptions and limitations should be communicated before disturbance. See our guide to asbestos information contractors should receive before work.
Planning HVAC or heating work in London?
Provide the property type, affected plant or service areas, planned works and any existing asbestos records when requesting a survey.
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