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Prefabrication & Skids
Off-site first. On-site fast.
Prefabrication is not a service we offer, it is how we deliver every project where it is possible to do so.
The model
Built in a workshop, not under site conditions
Most mechanical contracting is built around site sequencing: trades stacked on top of each other, quality dependent on site conditions, and programme at the mercy of everyone else's delays. We approach it differently.
Wherever a boiler house, plant room, pipe rack or plant skid can be built off site, we build it that way, in a controlled environment, to a fixed standard, tested before it ever leaves the workshop. It arrives on site ready to be positioned, connected and commissioned, rather than built from scratch under site conditions.
What we prefabricate
Complete, tested, ready to connect
Boiler houses
Fully packaged and tested before delivery.
Plant room modules
Designed for rapid on-site connection.
Pipe rack skids
Pre-assembled pipework racks for corridors, risers and plant areas.
Containerised plant systems
Modular, relocatable, ideal for constrained or live sites.
The benefits
Why it works for main contractors
Time
Off-site build runs in parallel with site works instead of waiting for a sequenced slot, cutting the time our teams spend on site and helping main contractors hit tight handover dates.
Cost
Fewer site labour hours, less site management overhead, and reduced exposure to the cost of site delays.
Quality
Controlled workshop conditions mean every joint, weld and connection is built and tested to a consistent standard, not weather- or access-dependent.
Programme certainty
Less time on site means less coordination with other trades and a materially lower risk of missing a critical handover date.
Scale, not small-contractor thinking
We think in systems and modules
This is the difference between Alert Mechanical and a traditional mechanical sub-contractor. We think in terms of systems and modules, not just pipe runs, designing plant packages that can be manufactured at scale, tested off site, and installed by a small, focused team in a fraction of the time a conventional build would take.
Talk to us about your next project
Send us the scope and we will show you where prefabrication can take time and risk out of your programme.