Commercial property maintenance is more complex than residential maintenance for one important reason: the consequences of getting it wrong are more severe. A missed gas safety inspection is a criminal offence. A failed fire risk assessment can result in an enforcement notice that closes your premises. A neglected HVAC system that causes a Legionella outbreak creates significant civil liability.
Most business owners and commercial tenants are aware that maintenance obligations exist, but many are unclear about exactly what they are, how frequently they must be carried out, and who is responsible — them or the landlord. This guide answers those questions and sets out a practical approach to commercial property maintenance that keeps your premises compliant, functional, and in good condition.
Tenant or landlord?
In a full repairing and insuring (FRI) lease — the most common type for commercial premises in the UK — the tenant is responsible for all maintenance, including the structure and exterior. Always check your lease. This guide assumes an FRI lease unless otherwise stated.
Statutory Maintenance Obligations
These are the maintenance tasks required by law for commercial premises. Failure to comply can result in enforcement action, prosecution, and invalidated insurance. This is not an exhaustive list — your specific premises and activities may trigger additional obligations.
| Obligation | Frequency | Who Carries It Out | Consequence of Non-Compliance |
|---|---|---|---|
| Gas Safety Inspection | Annually | Gas Safe registered engineer | Criminal prosecution, invalidated insurance, enforcement notice |
| Electrical Installation Condition Report (EICR) | Every 5 years | NICEIC or NAPIT registered electrician | Enforcement action, insurance issues, liability for electrical incidents |
| Fire Risk Assessment | Annually (or after changes) | Competent person (can be in-house) | Enforcement notice, prosecution, unlimited fine |
| Fire Alarm Test | Weekly (functional), annually (full) | Weekly: in-house; Annual: specialist contractor | Enforcement action, insurance issues |
| Emergency Lighting Test | Monthly (function), annually (full discharge) | Monthly: in-house; Annual: specialist contractor | Enforcement action, insurance issues |
| Legionella Risk Assessment | Every 2 years (or after changes) | Competent person (can be in-house) | HSE enforcement, prosecution, civil liability |
| Lift Inspection (LOLER) | Every 6 months | Competent person (specialist) | Prohibition notice, prosecution, civil liability |
| Pressure System Inspection | Per written scheme of examination | Competent person (specialist) | Prohibition notice, prosecution |
Planned Preventive Maintenance (PPM)
A PPM schedule goes beyond statutory compliance to cover the full range of maintenance tasks needed to keep a commercial building in good condition. It is the difference between managing your premises proactively and reacting to failures as they occur.
The business case for PPM is straightforward. Reactive maintenance — fixing things after they break — costs 3–5 times more than planned maintenance. Equipment that is serviced regularly lasts significantly longer. And a well-maintained premises is more attractive to staff, clients, and future tenants.
Building Fabric
- ✓Roof inspection and clearance
- ✓Gutter and downpipe clearance
- ✓External wall and render inspection
- ✓Window and door seal inspection
- ✓Drainage inspection
M&E Systems
- ✓HVAC service and filter change
- ✓Boiler service
- ✓Electrical distribution board inspection
- ✓Lighting replacement programme
- ✓Water system flushing (Legionella)
Safety Systems
- ✓Fire alarm test and service
- ✓Emergency lighting test
- ✓Fire extinguisher inspection
- ✓Fire door inspection
- ✓Security system test
Reactive vs Planned Maintenance: The Cost Comparison
The following comparison is based on TCM's experience managing commercial maintenance contracts across Hertfordshire and North London. The figures are indicative — actual costs depend on property size, age, and condition.
| Scenario | Planned Cost | Reactive Cost | Multiplier |
|---|---|---|---|
| Boiler service vs emergency repair | £120/year | £800–£2,500 | 7–20× |
| Gutter clearance vs damp repair | £150/year | £1,500–£5,000 | 10–33× |
| HVAC service vs system replacement | £400/year | £3,000–£12,000 | 7–30× |
| Flat roof inspection vs emergency repair | £200/year | £2,000–£8,000 | 10–40× |
| Fire alarm service vs enforcement action | £300/year | £5,000–£50,000+ | 17–167× |
How to Choose a Commercial Maintenance Contractor
The right commercial maintenance contractor is one of the most important relationships a business owner or facilities manager can have. Here is what to look for.
Relevant accreditations
Gas Safe for gas work, NICEIC or NAPIT for electrical, IPAF for working at height, CHAS or Constructionline for general health and safety. Ask to see the certificates — not just a logo on a website.
Adequate insurance
Public liability insurance of at least £5 million is standard for commercial work. Employer's liability insurance is a legal requirement. Ask for the certificate, not just confirmation that it exists.
Commercial experience
Residential maintenance contractors are not always equipped for commercial work. Ask specifically about their experience with premises of a similar type and size to yours.
Response time commitments
For critical systems (heating, security, fire safety), you need guaranteed response times. A good commercial maintenance contractor will offer tiered response times — emergency (2–4 hours), urgent (same day), and routine (planned).
Compliance documentation
Your contractor should provide all statutory compliance certificates and maintain a compliance log on your behalf. If they cannot do this, you will need to manage it yourself — which is a significant administrative burden.
Local presence
A contractor with local presence in Hertfordshire and North London can respond faster and has knowledge of local building stock and planning requirements. TCM is based in Borehamwood and serves a 10-mile radius.
Frequently Asked Questions
Who is responsible for maintaining a commercial property — the landlord or the tenant?+
Responsibility depends on the lease terms. In a full repairing and insuring (FRI) lease — the most common type for commercial properties in the UK — the tenant is responsible for all repairs and maintenance, including the structure and exterior. In an internal repairing lease, the tenant is responsible for internal repairs only. Always check your lease carefully and take legal advice if the terms are unclear. The lease will also specify whether you need landlord consent for alterations or improvements.
What statutory maintenance obligations apply to commercial premises?+
The key statutory obligations for commercial premises include: annual gas safety inspection and certificate (Gas Safe registered engineer); fixed electrical installation testing (EICR) every 5 years; fire risk assessment (annually reviewed, or after significant changes to the premises); fire alarm testing (weekly functional test, annual full inspection); emergency lighting testing (monthly function test, annual full discharge test); and Legionella risk assessment. Lift inspections are required every 6 months under LOLER. Failure to comply with these obligations can result in enforcement action, fines, and invalidated insurance.
What is a planned preventive maintenance (PPM) schedule?+
A PPM schedule is a documented programme of maintenance tasks carried out at regular intervals to prevent equipment failure and building deterioration. It covers all the statutory compliance items (gas, electrical, fire safety) plus the building fabric (roof, gutters, external walls, drainage) and M&E systems (HVAC, plumbing, lighting). A well-structured PPM schedule reduces reactive maintenance costs, extends asset lifespan, and ensures statutory compliance. TCM provides PPM contracts for commercial premises across Hertfordshire and North London.
How much does commercial property maintenance cost?+
Commercial maintenance costs vary significantly by property type, size, age, and condition. As a rough guide, budget 1–3% of the property's value per year for a well-maintained commercial building, rising to 3–5% for older properties or those with complex M&E systems. A PPM contract from TCM for a typical 2,000–5,000 sq ft office or retail unit in Hertfordshire typically costs £3,000–£8,000 per year, covering all statutory compliance, fabric inspections, and reactive call-outs within agreed response times.
What should I look for in a commercial maintenance contractor?+
Look for: relevant accreditations (Gas Safe for gas work, NICEIC or NAPIT for electrical, IPAF for working at height); public liability insurance of at least £5 million; a track record with similar commercial premises; clear response time commitments for reactive call-outs; and the ability to provide all statutory compliance documentation. Avoid contractors who cannot provide written evidence of their accreditations or who are reluctant to provide references from comparable clients.
Related Services and Guides
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Looking for a Commercial Maintenance Partner?
TCM Building & Maintenance provides PPM contracts and reactive maintenance for commercial premises across Hertfordshire and North London. Gas Safe, NICEIC approved, IPAF certified.