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Office refurbishment problems should be handled as a controlled defect process: make any dangerous area safe, record each fault precisely, notify the responsible contractor or building manager in writing, and use competent specialists for electrical, fire and building-services work. For UK workplaces, this approach is safer and more defensible than trying to adjust or repair fixed systems yourself.
The sequence below covers the faults tenants and facilities teams may discover after handover, from stuffy rooms and uneven temperatures to damaged fire precautions, lighting faults and incomplete finishes. Contract deadlines and legal remedies depend on your agreement, building use and jurisdiction, so treat the guidance as a practical response plan rather than a universal warranty rule.
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What should I do first after finding a refurbishment defect?
Start with safety triage, then create one written record for every defect. Do not wait for a convenient snagging meeting if a fault could injure someone, start a fire or compromise escape.
1. Make the area safe
Escalate immediately if you find a burning smell, exposed or damaged wiring, water close to electrical equipment, a failed fire alarm or emergency light, a damaged fire door, or an obstructed escape route. Restrict access, move people away and isolate the affected area only where that can be done safely and by an authorised person. The Health and Safety Executive (HSE) says that when a potentially dangerous defect is discovered it should be rectified immediately, or steps should be taken to protect anyone at risk (HSE Approved Code of Practice L24).
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Call the building’s emergency maintenance contact or emergency services where appropriate. Never remove a fire door, bypass an alarm, tape over a detector or continue using damaged electrical equipment simply to keep the office operating.
2. Record the defect before it changes
Make a separate entry for each fault. A useful record includes:
- the building, floor, room and precise location;
- the date and time first noticed;
- what happens, including any noise, smell, leak, error message or visible damage;
- whether it is continuous or intermittent;
- conditions when it occurs, such as occupancy, weather, time of day or equipment running;
- photographs or video, with a scale reference where useful;
- the person responsible for the next action;
- the agreed action and target date; and
- the completion date and evidence that the remedy was checked.
Keep the log in a shared location and preserve the original photographs and emails. Camden’s property guidance describes a defects log that tracks actions through completion; it also recognises that priorities depend on both cost and the consequences of a fault.
3. Notify the right party in writing
Send the log, photographs and a concise description to the named contractor, contract administrator, landlord or facilities manager. Ask for acknowledgement, an owner and a date for inspection. Keep urgent safety notifications separate from routine cosmetic snags so they cannot be buried in a long list.
| Priority | Examples | Immediate response |
|---|---|---|
| Emergency | Smoke or burning smell, exposed live parts, water at electrical equipment, failed fire alarm, blocked escape route | Protect people, restrict access and obtain competent or emergency help |
| Urgent | Fire door not closing, emergency lighting fault, persistent leak, loss of ventilation in an occupied room | Report promptly, apply temporary controls and set a short inspection date |
| Routine | Damaged finishes, loose ironmongery, misaligned doors, minor decorating defects | Log, assign an owner and agree a completion date |
The labels are a management aid, not a substitute for a risk assessment. A small-looking defect can become urgent if it affects a vulnerable occupant, an escape route or a critical building system.
Why is the office still stuffy after refurbishment?
A stuffy room needs a ventilation and controls investigation, not a guessed fan setting. Check for obvious obstructions and document the conditions, then ask the facilities manager or refurbishment contractor to verify design, air distribution, settings and commissioning.
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- Note the room, number of occupants, time of day and whether the problem is constant or appears after the room fills.
- Look for blocked or covered supply and extract grilles without dismantling them.
- Check whether doors, partitions or new furniture are deflecting air from the intended path.
- Record whether the problem affects the whole room or a particular desk or zone.
- Report unusual fan noise, odours, condensation or visible damage.
HSE states that employers must ensure adequate ventilation in enclosed workplace areas (HSE workplace ventilation guidance). Ask the responsible contractor to check the design intent, fan operation, air-volume settings, filters, controls and commissioning records. Do not alter control-panel settings or remove grilles unless you are authorised and competent to do so.
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Can a CO2 monitor prove that ventilation is faulty?
No. HSE discusses CO2 readings as one indicator when a space continues to feel stuffy, so a monitor can help document patterns for the person investigating the system. It is not a diagnosis, a legal pass/fail test or a repair. Place any monitor where it represents the occupied zone, record the time and occupancy alongside readings, and give the data to the building-services professional.
Persistent symptoms, odours or condensation may have more than one cause. The contractor should compare readings with the ventilation design and commissioning information rather than treating a single number as a universal threshold.
Why are some rooms too hot or too cold?
Uneven heating or cooling usually requires a controls, air-distribution and commissioning check. A thermostat adjustment may mask the symptom while leaving a balancing or sensor problem unresolved.
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- List every affected room and the operating times when the problem occurs.
- Record the displayed set-point and any error message without changing settings.
- Note whether the issue changes with occupancy, sunlight, doors being open or nearby equipment.
- Check that supply or return grilles are not blocked by furniture.
- Ask the contractor to compare actual operation with the control strategy and commissioning records.
Historic England’s guidance on use, evaluation and maintenance stresses that handover should explain how building services are intended to work. Request the balancing report, control schedules, sensor locations and user instructions. If the system was altered after the original commissioning, ask for recommissioning rather than an informal reset.
What should I do about a faulty light, switch or socket?
Record which fitting or circuit is affected and report it to the building manager or refurbishment contractor. Do not open a light fitting, remove a socket faceplate, replace fixed wiring or investigate inside a distribution board unless you are a suitably competent person authorised for that work.
Include the fitting’s room and position, whether it flickers or fails completely, whether a breaker has tripped, and whether there is heat, scorching, a smell or a buzzing sound. If there is a burning smell, damaged cable, arcing or water nearby, stop using the area and escalate as an urgent safety defect.
The Home Office’s fire-safety risk assessment for offices and shops identifies electrical faults, incorrect installation and inadequate maintenance as potential fire risks and expects electrical installations to be handled by competent people. Ask for the relevant inspection, test and certification records as part of the close-out pack.
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How do I deal with a failed emergency light or fire alarm?
Treat a failed alarm, emergency light or other life-safety device as an urgent defect. Tell the responsible person immediately, restrict use of affected areas if required by the risk assessment and arrange competent inspection. Do not silence, disable or cover an alarm to stop nuisance activation.
Ask the responsible person to confirm:
- which device or circuit failed and when;
- whether temporary measures, such as a trained fire watch or restricted occupancy, are required;
- when the system will be repaired and function-tested; and
- what test result or service record will demonstrate completion.
A refurbishment can change occupancy, compartmentation, travel distances or escape routes. The Home Office guidance says fire precautions should be reviewed after building alterations. Keep the updated fire risk assessment, emergency-lighting test records, alarm service records and evacuation arrangements with the handover information.
What if a fire door, partition or ceiling has been damaged?
Report doors that do not close and latch, damaged seals, excessive gaps, missing hardware or wedged-open leaves. Keep the route usable only if the responsible fire-safety person confirms that doing so is safe; otherwise restrict access and provide a managed alternative.
New partitions, ceiling work, cable routes and pipe penetrations can affect fire-stopping or cavity barriers. Do not fill a penetration with an unapproved sealant or remove ceiling panels to inspect it yourself. Raise suspected damage for a competent fire-stopping or building-control inspection. UK Government guidance on managing safety risks in high-rise residential buildings explains why fire-stopping and cavity barriers must maintain the intended separation; the same principle is relevant when refurbishment work crosses fire-resisting construction (fire-stopping and cavity-barrier guidance).
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First identify whether water is active, spreading or close to electrical equipment. Protect people and equipment, isolate the affected area where authorised, and report the source rather than only the stain. Photograph the location, note when it appears and record whether it follows rain, cleaning, plumbing use or air-conditioning operation.
For a persistent leak, ask the contractor to investigate concealed pipework, roof interfaces, drainage, seals and condensate routes as appropriate to the work. Drying and redecorating before the source is fixed can conceal continuing damage. Record damaged flooring, plasterboard, joinery and contents separately so the repair scope is clear.
What should be in the refurbishment handover pack?
The handover pack is the quickest way to understand what was installed, how it should operate and who maintains it. Historic England’s guidance on installing new services and its Stage 5 guidance both emphasise usable commissioning and maintenance information.
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Look for:
- commissioning certificates, test results and balancing information;
- as-installed drawings and equipment schedules;
- operation and maintenance manuals;
- control sequences, set-points and user instructions;
- fire alarm, emergency lighting and other life-safety records;
- inspection and maintenance schedules;
- warranties and manufacturer contacts;
- training records or demonstrations for facilities staff; and
- the formal defects, notification and escalation procedure.
If a document is missing, log the omission as a handover defect. A system that works but cannot be safely operated or maintained is not a complete handover.
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Arrange a professional inspection when defects are extensive, recurring, technically unclear or disputed, or when the issue involves electrical safety, fire precautions, ventilation performance, water ingress or structural interfaces. An independent report can separate symptoms from root causes and give the contractor a prioritised schedule, but it does not replace the building owner’s or employer’s statutory duties.
Choose an inspector with competence relevant to the problem and ask what evidence the report will contain: photographs, measured observations, references to drawings or specifications, risk ranking and recommended verification tests. For electrical and fire work, confirm the specialist’s qualifications and authorisation before appointing them.
How do I close out a defect properly?
Do not mark a snag complete merely because someone has visited. Close it only after the corrective work and any required test or inspection are documented.
- Update the log with the work performed, date and contractor.
- Attach certificates, commissioning data, photographs or test results where relevant.
- Reinspect the original symptom under the conditions in which it occurred.
- Confirm that temporary controls have been removed or formally retained.
- Obtain the responsible manager’s acceptance and record any residual limitation.
For ventilation, that may mean checking the room when occupied; for a door, confirming it closes and latches; for an alarm or emergency light, recording the competent person’s functional test. Keep unresolved items visible with a new owner and date rather than deleting them from the list.
What should I avoid doing myself?
- Do not open electrical fittings or alter fixed wiring.
- Do not change fire-alarm, emergency-lighting or access-control settings to suppress a fault.
- Do not block, remove or wedge open fire doors.
- Do not dismantle ventilation grilles or change control parameters without authorisation.
- Do not conceal leaks, penetrations or damaged fire-stopping with cosmetic finishes.
- Do not rely on a CO2 monitor as proof that ventilation is compliant.
Safe observation and accurate reporting are useful; intrusive diagnosis and repair of life-safety or fixed building systems require competent people.
How do contract deadlines and remedies work?
There is no single UK defects-liability period that applies to every office refurbishment. The relevant deadline, notice method, retention arrangement and remedy will come from the building contract, appointment, lease or warranty, together with applicable local law.
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Check the contract for notice addresses, evidence requirements, access arrangements, response times, latent-defect provisions and dispute escalation. Notify defects promptly even when you are still investigating them, reserve your contractual rights where appropriate and obtain legal advice for a disputed or high-value claim. Keep communications factual: identify the defect, risk, location, requested action and response date.
A practical one-page response sequence
- Protect: stop exposure to immediate danger and call the correct emergency or competent service.
- Describe: create one dated, location-specific record per defect.
- Prioritise: separate life-safety and operational faults from routine finishes.
- Notify: send the log and evidence in writing to the responsible party.
- Investigate: use handover records and competent inspections to identify the cause.
- Repair: require work that follows the design, specification and applicable safety controls.
- Verify: retest under realistic conditions and obtain the relevant records.
- Close: update the log, retain evidence and track any residual action.
This approach gives occupants a safer workplace and gives the tenant, facilities team and contractor a shared record of what was found, who owns it and what “fixed” means.
Frequently Asked Questions
Can I refuse to move staff back into the refurbished office?
You may need to restrict access where a risk assessment identifies danger, but the decision should be made by the employer, building owner or other responsible person under the applicable safety arrangements. Document the specific hazard, temporary controls and professional advice rather than relying on a blanket refusal.
Is there a standard warranty period for office refurbishment snags in the UK?
No universal period applies. The contract and any separate warranties set notification windows, response duties and remedies, so check those documents and obtain legal advice if a deadline is close or disputed.
Where should I place a CO2 monitor in a meeting room?
Place it in the occupied breathing zone, away from supply grilles, windows, doors and direct exhalation, and record occupancy and operating conditions with each reading. Its results are evidence for an investigation, not a standalone compliance verdict.
Who is responsible for defects after handover—the tenant, landlord or contractor?
Responsibility depends on the contract, lease, scope of works and the building’s management arrangements. Send notice to every potentially responsible party named in those documents and ask them to identify the inspection owner in writing.
What evidence should I keep if a refurbishment defect becomes a dispute?
Retain the signed scope, drawings, variations, handover pack, commissioning data, dated photographs, defect log, emails, access records and competent inspection reports. Keep the original files and a clear timeline showing when each party was notified and what response followed.
