Every UK business owner should act on five things right now: inspect window seals and hardware for visible damage, secure or board any broken panes, verify that cleaning access is safe and planned, schedule routine maintenance, and review whether your glazing meets current security and safety standards.
Three sets of rules govern your legal position. Building Regulations K5.4 requires safe cleaning access for commercial buildings where there is a risk of falling from height. The Workplace (Health, Safety and Welfare) Regulations 1992 (Regulations 15 and 16) require that windows cannot be opened in a way that exposes anyone to risk and must be designed to be cleaned safely. The Health and Safety Executive (HSE) places primary responsibility for safe window cleaning on the employer or whoever controls the work. If you are unsure whether your windows meet these standards, Cloudy2Clear Windows offers commercial inspection and repair services to help you get compliant quickly.
Pro Tip: Book a professional glazing inspection before your next insurance renewal. Documented compliance can support your liability position if a claim arises.
What should you check on a site walk-round?
A quick visual inspection takes under twenty minutes and can flag issues before they become costly or dangerous. Work through this checklist on each visit:
- Glass condition: cracked panes, edge chips, spidering fractures, or distorted glass
- Sealed units: misting or condensation between panes indicates a failed seal
- Frames and hinges: corrosion, warping, or stiff operation
- Locks and restrictors: faulty or missing opening restrictors on upper-floor windows
- Escape routes: windows designated as emergency exits must open freely and fully
- Cleaning access: confirm that any window located at a height that requires safe access arrangements for cleaning
Prioritise issues as follows: broken or cracked glass is an immediate safety risk; failed seals and faulty hardware are high priority for repair within days; cosmetic wear and minor frame deterioration can be scheduled as routine maintenance.
Regular cleaning also pays dividends beyond appearance. Scheduled cleaning helps spot maintenance issues early and reduces long-term wear on seals and frames.
Pro Tip: Photograph every fault you find and log the date. That record protects you with insurers and demonstrates due diligence to the HSE if an incident is ever investigated.
Which UK regulations apply to your business windows?
Three overlapping frameworks set your legal duties as a property owner or employer.
Building Regulations K5.4 requires that commercial buildings provide safe access for cleaning any glazed surface where a person could fall more than two metres. Approved Document K lists six compliant options: reversible or openable windows, access ladders (up to 6 metres), suspended cradles, anchorage points for rope access, permanent guarded walkways, and space for scaffold towers. One of these must be designed in and maintained.
Workplace Regulations 1992, Regulation 15 states that no window shall be opened in a way likely to expose anyone to a safety risk, and no window shall be left open in a dangerous position. Regulation 16 requires that windows and skylights are constructed or designed so they can be cleaned safely, taking into account any devices or equipment used with them.
HSE and Work at Height Regulations place the duty to plan, supervise, and resource safe window cleaning on the employer or the person in control of the work. Competent operatives and inspected equipment are not optional.
“Falls from height are the leading cause of workplace fatalities in UK construction, and window cleaning is among the highest-risk occupations.” — Architects’ Journal / HSE data
Who is responsible? The building owner holds primary responsibility for the design and maintenance of safe access. The employer (which may be the same person) is responsible for how cleaning and maintenance work is carried out. Both can be liable if an incident occurs.
How do you clean windows safely at height?
Avoid work at height wherever reasonably practicable. Where it cannot be avoided, the HSE requires that the work is planned, supervised, and carried out by competent people using properly inspected equipment.
Preferred controls, in order of preference:
- Clean from inside the building using reversible or tilt-and-turn windows
- Use water-fed poles from ground level
- Use collective protection (guarded platforms) before relying on personal protective equipment
- Avoid ladders where possible; almost all ladder falls happen because the ladder moves unexpectedly
When you engage a cleaning contractor, ask for written evidence of: a risk assessment and method statement, LOLER inspection records for any powered access equipment, anchor point inspection records, public liability insurance, and a documented emergency rescue plan. The HSE is clear that rescue procedures must be planned before work starts and must not rely solely on the emergency services.
Pro Tip: Schedule window cleaning during low-footfall periods and set a ground exclusion zone beneath any elevated work. This protects both staff and members of the public.
How do you spot a hazardous window before it fails?
Visible warning signs are usually present well before a window becomes dangerous. Look for:
- Spidering cracks or edge chips in the glass
- Misting or condensation trapped between panes (failed sealed unit)
- Distorted or bowed glass panels
- Bent, corroded, or stiff hinges and stays
- Locks that do not engage fully or opening restrictors that are missing or broken
Faulty hardware creates a specific compliance risk under Regulation 15. A window that sticks and then releases suddenly, or one that swings open beyond a safe angle, can injure anyone nearby. Window hardware condition directly affects both safety and legal compliance.
Photograph faults at the time of discovery. A dated image is useful for insurance claims, contractor quotes, and demonstrating that you identified and acted on a problem promptly.
What safety glass options suit commercial properties?
Upgrading glazing is often the most cost-effective way to reduce injury risk and meet insurance requirements. The three main options for commercial use are:
| Glass type | Safety behaviour | Best suited for |
|---|---|---|
| Toughened (tempered) | Shatters into small, blunt fragments | Doors, partitions, ground-floor windows |
| Laminated | Holds together on impact; interlayer retains shards | High-security areas, overhead glazing, escape routes |
| Fire-rated | Maintains integrity under heat for a rated period | Compartment walls, fire doors, stairwells |
Annealed (standard float) glass breaks into large, sharp shards and is not suitable for locations where people could fall against it or where forced entry is a risk. Acoustic and thermally upgraded units can be specified in toughened or laminated form, so performance and safety are not mutually exclusive.
Pro Tip: Where security is a concern, combine laminated glazing with reinforced multi-point locking hardware. Glass alone will not deter a determined intruder; the combination significantly raises the difficulty of forced entry.
How can you reduce break-ins and glazing damage?
Practical security measures for commercial glazing do not need to be expensive to be effective:
- Fit laminated or reinforced glazing to ground-floor and accessible windows
- Install multi-point locking systems on all external windows and doors
- Apply internal security film as a temporary measure after damage or while awaiting replacement
- Use external shutters or grilles where the building use and planning permissions allow
- Ensure CCTV coverage includes glazing lines and that lighting eliminates dark areas around windows
Delays to repair after vandalism or a break-in increase your insurance exposure. A smashed pane left unboarded overnight is both a liability and an invitation to further damage. Keep an emergency contact for a glazing specialist who can arrange rapid boarding and broken window repair to limit your risk.
For more on security glazing features that can be applied to commercial settings, Cloudy2Clear Windows has published practical guidance covering the options available.
What inspection schedule should you follow?
| Task | Frequency | Responsible party |
|---|---|---|
| Visual check (glass, seals, hardware) | Monthly | On-site manager |
| Full operational and hardware inspection | Quarterly | Qualified contractor |
| Professional glazing survey | Annually or after severe weather/impact | Specialist glazier |
| Cleaning frequency (offices) | Every 1–3 months | Approved cleaning contractor |
Commercial window maintenance records should include the date of each inspection, who carried it out, faults found, and actions taken. Retail and hospitality premises may need cleaning every 4–8 weeks; healthcare and food-service environments often require more frequent attention.
Pro Tip: Keep inspection records for at least three years. If an incident occurs, documented maintenance history is your strongest defence with insurers and enforcement bodies.
What should you do immediately after window damage?
Act in this order:
- Secure the area and prevent access by staff and the public.
- Remove obvious sharp debris if it is safe to do so without risk of further breakage.
- Board or apply security film to the broken pane to prevent weather ingress and further injury.
- Photograph the damage before any temporary repair for insurance evidence.
- Notify your insurer and log the incident with time, date, and circumstances.
- Contact a glazing specialist for emergency boarding and a replacement quote.
Call emergency services if there is a risk of structural collapse, if anyone has been injured, or if the damage has created an immediate fall hazard that you cannot safely control. For everything else, a qualified glazier is the right first call. Cloudy2Clear Windows provides emergency commercial glass repair and boarding services for exactly these situations.
How do you choose the right glazing contractor?
Ask every contractor these questions before booking:
- Do you carry public liability insurance, and can you provide the certificate?
- What is your experience with commercial double glazing repair and replacement?
- Can you supply a written risk assessment and method statement for the work?
- What are your turnaround times for emergency jobs?
- Do you provide LOLER inspection records for any access equipment used?
- What warranty do you offer on replacement sealed units?
Demand written answers, not verbal assurances. A contractor who cannot produce inspection logs, insurance documents, and a method statement is not compliant with HSE requirements and should not be engaged for work at height or commercial glazing.
Cloudy2Clear Windows: our perspective on commercial glazing safety
Since 2005, Cloudy2Clear Windows has inspected and repaired commercial double glazing across the UK. The faults we see most often are failed sealed units that have been left to deteriorate for months, and opening hardware that has seized or lost its restrictor. Both are straightforward to fix when caught early. Left unaddressed, they become compliance failures and, in some cases, the direct cause of an incident.
The businesses that manage glazing well treat it the same way they treat fire safety: scheduled checks, documented records, and a clear escalation path when something needs urgent attention. Those that do not tend to call us after an incident rather than before one.
Cloudy2Clear Windows can help you stay safe and compliant
Cloudy2Clear Windows has been repairing and replacing commercial double glazing since 2005, and our services are built around the needs of property owners who need fast, reliable results without the hassle of managing multiple contractors. We handle the full process from inspection through to written quote and completed repair or replacement, including emergency boarding when you need it the same day.
Our commercial window replacement service covers misted units, cracked panes, failed hardware, and full glazing upgrades to toughened or laminated glass. We are available Monday to Friday, 8:30am to 6:30pm. To book a commercial inspection or arrange an emergency repair, contact your local Cloudy2Clear Windows branch today.
Useful sources for UK compliance and safe working at height
These primary sources are the most reliable references for verifying your legal duties:
- Workplace Regulations 1992, Regulation 15: Safe window operation requirements for employers
- Workplace Regulations 1992, Regulation 16: Design requirements for safe window cleaning
- HSE window cleaning guidance: Planning, supervision, and equipment requirements for work at height
- Building Regulations K5.4 (Architects’ Journal analysis): Six compliant options for safe cleaning access in commercial buildings
- Commercial window cleaning frequency guide: Sector-specific cleaning intervals and contractor checks
Use the Workplace Regulations pages to confirm your legal duties as an employer. Use the HSE guidance when briefing or vetting cleaning contractors. Use the Building Regulations analysis when planning any glazing replacement or refurbishment project.
FAQ
What does Building Regulations K5.4 require for business windows?
K5.4 requires that commercial buildings provide safe access for cleaning any glazed surface where a fall of more than two metres is possible, using one of six approved methods including reversible windows, anchor points, or guarded walkways.
How often should commercial windows be professionally inspected?
A qualified contractor should carry out regular full operational and hardware inspections, with professional glazing surveys conducted periodically and frequent visual checks by an on-site manager.
What type of glass is required for commercial doors and partitions?
Toughened or laminated safety glass is required in locations where people could fall against the glazing, such as doors, low-level windows, and partitions, in line with the Workplace Regulations 1992.
When should you call a glazing specialist rather than board a window yourself?
Call a specialist immediately after any break-in, impact damage, or seal failure. Temporary boarding is a short-term measure only; Cloudy2Clear Windows can arrange emergency commercial repairs and a permanent replacement to restore compliance.
Who is legally responsible for window safety in a commercial building?
The building owner is responsible for the design and maintenance of safe access; the employer (which may be the same person) is responsible for how cleaning and maintenance work is carried out, as set out by the HSE and the Workplace Regulations 1992.
