Project-managed refurbishment & building, London Covering all London boroughs 07498 597339
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Commercial office building in London
Commercial, London

Commercial Building Services London.

Fit-out, shopfitting and dilapidations, plus the full statutory testing schedule: fixed wire, emergency lighting, legionella, fire risk, fire doors and TM44. One contractor, all London boroughs.

All trades
Single contractor
Offices & retail
Commercial specialists
All London
Boroughs covered
Our options
Every job is different. Contact us for a free quote tailored to your property.
Office fit-out and refurbishment
Partitioning, electrical, data, flooring and decoration, run as one contract
Shopfronts, counters, lighting and flooring, phased to work around trading hours
Commercial kitchens and food hygiene
Kitchen fit-out, extract cleaning and the works behind a better Food Hygiene Rating
Strip-out and reinstatement to the schedule of dilapidations at lease end
Fixed wire testing and the annual BS 5266 duration test, with remedials quoted
ACOP L8 assessment, water temperature monitoring and tank cleaning and disinfection
Assessment, Regulation 10 fire door checks and the remedial joinery that follows
Five-yearly inspection for any building over 12kW of cooling, by an accredited assessor
Commercial EPC and MEES upgrades
Assessment plus the works to lift a rented building towards the non-domestic standard
Asbestos management surveys
Survey and management plan through an accredited surveyor, with non-licensed remedials
Security systems
CCTV, access control and intruder alarms for offices, retail, warehouses and blocks
Planned and reactive small works
Scheduled testing and day-to-day repairs for managing agents, quoted per job
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Congestion charge may apply for central London postcodes.

Commercial services

Complete commercial
building services.

Commercial property runs on different rules to residential, and most of them are dated. Fixed wire testing comes round on a shorter cycle. Emergency lighting needs a three-hour duration test every year under BS 5266. Any building with more than 12kW of cooling needs a TM44 air conditioning inspection every five years. Legionella carries a standing duty to assess and monitor under ACOP L8. And since the Fire Safety (England) Regulations 2022, communal fire doors in buildings over 11 metres have to be checked quarterly and recorded, not just glanced at.

We work with commercial occupiers, landlords and managing agents across London, providing electrical, compliance and fit-out services as a single-source contractor. This reduces the administrative burden of managing multiple specialist contractors and provides clearer accountability.

We lead on office fit-out, shopfitting and refurbishment, dilapidations and reinstatement at lease end, and the statutory testing that keeps a building lettable: fixed wire testing, emergency lighting, legionella, fire risk and fire doors, air conditioning inspection and the non-domestic EPC. Anything outside that we will tell you plainly rather than take on.

Why choose us

Why London
commercial clients choose us.

Single contractor

Fit-out, electrical testing and fabric work come from one contract, so you are not chasing three specialists and holding three sets of paperwork.

Out-of-hours working

Fit-out and testing usually has to happen around the occupier. We schedule evenings and weekends where the building needs it, and agree the working hours before we start.

Compliance management

We schedule your statutory testing, EICR and emergency lighting, so renewals are booked before they lapse and certificates come back to you the same week.

Fit-out experience

We carry out office fit-outs including partitioning, raised access flooring, electrical installation, data cabling, decoration and IT infrastructure, all under one contract.

What's included

Commercial
capabilities.

Office fit-out
Design and build of commercial space including partitioning, electrics, data, flooring and decoration
Shopfitting
Retail refits and shopfronts, phased around trading hours so the unit keeps earning
Commercial kitchens
Fit-out for restaurants, takeaways, pubs, hotels and care homes: hygienic cladding, safety flooring, canopies, grease traps and drainage
Food hygiene rating
Rated 0, 1 or 2? Most poor ratings are driven by the structural score, which is building work. We fix the fabric and support the re-visit request
Dilapidations
Strip-out and reinstatement to the schedule of dilapidations, agreed with the landlord surveyor
Commercial EICR
Fixed wire testing to the IET Wiring Regulations, with remedial work quoted separately
Emergency lighting
Monthly function tests and the annual BS 5266 three-hour duration test, certificate issued
Legionella and water hygiene
ACOP L8 risk assessment, monthly temperature monitoring, and cold water tank inspection, clean and disinfection
Fire risk assessment
Assessment of the building by a competent assessor, with a costed action plan rather than a list of problems
Fire doors
Regulation 10 quarterly communal and annual flat entrance checks for buildings over 11m, with remedial joinery
Fire alarm
Domestic and HMO systems to BS 5839 Part 6. For commercial Part 1 panels we bring in a BAFE-certified specialist
Air conditioning (TM44)
Five-yearly inspection for buildings over 12kW of combined cooling, carried out by an accredited TM44 assessor
Commercial EPC and MEES
Non-domestic assessment lodged by an accredited assessor, plus the fabric and plant works to lift the rating
Asbestos management
Management survey and register through an accredited surveyor. We carry out non-licensed remedial work and bring in a licensed contractor where the material requires it
Thermal imaging
Annual thermographic survey of distribution boards, the check most commercial insurers now ask for
Commercial CCTV
Surveyed for coverage first. Retail, offices, warehouses, yards and communal areas, with a retention period sized to what you need
Access control
Fob, card and app entry, door release, intercom and visitor management for offices and blocks
Intruder alarms
Bells-only and monitored systems. Where your insurer specifies an NSI or SSAIB certificated installer we bring one in and say so up front
Commercial rewires
Distribution board upgrades, sub-mains and full rewires by NICEIC engineers
Roofs and rainwater
Twice-yearly gutter, downpipe and flat roof clearance, and the repairs that come out of it
Small works
Scheduled and reactive works for managing agents and block managers, quoted per job rather than on a maintenance contract
How it works

Working
together.

Briefing & survey
We meet on-site to understand your requirements and carry out a full survey before providing a fixed-price quotation.
Contract & programme
A detailed programme of works and fixed-price contract is agreed, with milestones and any out-of-hours working requirements confirmed.
Works
Our teams carry out the project to programme, with a named project manager as your single point of contact throughout.
Handover & documentation
Full handover pack including all certificates, O&M manuals and as-built drawings where applicable.
Common questions

Questions
answered.

Do you work outside normal business hours?
Yes, we regularly carry out commercial works evenings and weekends to minimise disruption to business occupiers. Out-of-hours working is factored into our quotations.
Can you manage all compliance for a commercial building?
Yes. We schedule EICR, emergency lighting and EPC renewals together so they are booked before they lapse, and send every certificate through as it is issued.
Do you work with managing agents?
Yes, we work with many London managing agents and property management companies on both reactive and planned maintenance contracts. We provide named account management and consolidated monthly invoicing.
Can you carry out a CAT A or CAT B office fit-out?
Yes, we carry out both CAT A (base build) and CAT B (occupier fit-out) office refurbishments. We manage all trades in-house or under our direct management.
Do you provide references from existing commercial clients?
Yes, we can provide references from managing agents and commercial occupiers on request. Please mention this when making an enquiry.
London-wide service

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services quote.

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Coverage

Areas we cover.

We take commercial building work across all 32 London boroughs. Most of our work is in west London, in Shepherd's Bush, Hammersmith, Fulham, Kensington, Chiswick and White City, and in south west London, in Putney, Wandsworth and Wimbledon. We also work in south east London, in Greenwich, Blackheath and Lewisham.

If your property is outside these areas, call us anyway. We travel across London and will tell you honestly if a job is too far to price properly.

Message us
Call GMAS on 07498 597339