How to choose an office partitioning contractor: questions to ask and red flags

Updated 6 November 2026 · By the Office Partitions team

Short answer: Choose an office partitioning contractor who surveys the space properly, explains the right system for each room, prices doors, finishes and making good clearly, and thinks about fire, glazing safety and acoustics from the start. Ask about lead times, what is excluded from the quote, how they handle building control and landlord consent, and how they will work around your team. Be wary of quotes priced per metre with no detail or no site survey.

What a good contractor does before quoting

Office partitioning looks simple on a floor plan, but the cost and performance of a room depend on details that only show up on site: the ceiling type and height, what is in the ceiling void, the floor finish and whether it is a raised access floor, where power, data, air conditioning, sprinklers and fire detection run, and how the new walls affect escape routes. A good contractor surveys the space or asks for enough information to understand these before giving a fixed price.

Measures the floor and confirms ceiling height and type
Checks what is above the suspended ceiling and below any raised floor
Asks how each room will be used and how private it needs to be
Flags escape routes, inner rooms and fire separation early
Confirms who handles electrics, lighting, air conditioning and fire alarm changes
Asks whether you own or lease the building

Questions to ask before appointing

Question	Why it matters
What system do you recommend for each room and why?	Shows whether advice is based on use, not just margin
What sound rating will each room achieve, and how is the ceiling void treated?	The void and door often decide real privacy
Does the layout affect escape routes or need building control?	Avoids costly changes after installation
What is the lead time for glass, doors and components?	Glazed systems often need several weeks after final survey
What is excluded from the price?	Electrics, decoration, ceiling repairs and fire alarm work are common exclusions
Can you work out of hours or phase the work?	Keeps disruption to your team down
What paperwork will we receive at handover?	Needed for building control, fire safety and the landlord

Comparing quotes like for like

Partition quotes are often given per linear metre, which makes them look easy to compare, but the real differences sit in the detail. One quote may include doors, manifestation and making good while another lists them as extras. One may run walls to the slab while another stops at the ceiling grid. Line up each quote against the same scope before comparing totals.

Partition system, glazing type and thickness
Wall height, to the ceiling grid or to the slab
Number, type and size of doors, including acoustic and fire doors
Door closers, locks and access control preparation
Manifestation design
Ceiling void barriers and acoustic seals
Fire stopping and fire-rated components
Making good to ceilings, floors and walls
Decoration and waste removal

Red flags

A per-metre price with no survey and no list of inclusions
No mention of manifestation or safety glass on glazed partitions
Dismissing building control or fire safety questions without checking
Promising sound performance without discussing doors or the ceiling void
Fire-rated work with no reference to tested systems or certification
Very short lead times on bespoke glazing that seem too good to be true
Pressure to sign quickly or pay large sums before materials are ordered

Compliance and paperwork

The contractor will not be responsible for every legal duty, but they should understand the ones that affect their work. Safety glass and manifestation are required for glazed partitions in workplaces. Building control may need to approve layouts that affect means of escape. Fire-rated partitions and doors need documentation showing the system installed matches what was tested. Under the Construction (Design and Management) Regulations 2015, commercial clients also have duties, including making suitable arrangements for managing the project and providing information such as the asbestos register.

At handover, expect product details for the partitions, glazing and doors, fire certification for rated components, and any information needed to update your fire risk assessment.

Working in an occupied office

Most partitioning happens in offices that are still in use. Ask how the contractor will protect the area, control dust and noise, keep escape routes clear during the works, and secure the site overnight. Prefabricated glazed and demountable systems create far less mess than plasterboard, and noisy work such as drilling into slabs can be scheduled early, late or at weekends.

Ask too who will be your point of contact during the works, how changes to the scope will be priced and agreed, and how snagging will be handled after handover. Small issues such as a door that drifts closed, a seal that does not engage or a scratch on a glass panel are normal on any fit-out. What matters is that there is a clear, agreed way of listing and fixing them promptly.