Advice · updated November 2026
How to fit out a building while you are still using it
Most commercial fit-outs happen around a working business. It can be done safely and with little disruption if it is planned before the price is agreed.
Decide the hours first
Out-of-hours and weekend working avoids disruption but costs more and takes longer. Tell installers which hours they can work when you ask for quotes, so the prices compare like for like.
Phase the work
Splitting the job into areas lets you move people around the work. It needs somewhere to move them to, and each phase needs its own clean handover.
Keep people safe
- Solid, sealed barriers between the work and your staff or customers
- Escape routes and fire alarms kept working, or temporary cover agreed
- Dust and noise controlled, with the noisiest work at agreed times
- Deliveries and waste moved at quiet times, by an agreed route
Tell the people who need to know
Your landlord may need to give consent before work starts. Your insurer should know about the works. Your staff should know what is happening and when.
What to ask an installer
- Have you worked in occupied buildings like mine?
- How will you separate the work from my people?
- Who is my named contact on site each day?
- What happens to the fire alarm and escape routes during the work?
This guide is general information, not legal or professional advice. Check your own situation with a qualified adviser.
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