The Landlord's Seasonal Property Maintenance Calendar

Reactive maintenance costs 3-5x more than proactive maintenance. A small leak left for months becomes a ceiling collapse. A blocked gutter becomes damp, then mould, then a Section 11 disrepair claim. Tenants who report a £40 boiler service request that's ignored end up reporting a £2,400 boiler replacement six months later. The economics of rental property strongly favour the landlord who plans seasonally, not the one who reacts.

This calendar covers the three buckets of maintenance — annual statutory checks, seasonal preventive tasks, and the contingency reserve to fund the rest. The four-season structure mirrors how UK weather + tenant complaints + tradesperson availability actually pattern across the year.

Annual statutory dates (anchor these first)

Before the seasonal stuff, three dates that are non-negotiable:

• Gas Safety Certificate (CP12): annual — every gas appliance, flue, and fitting checked by a Gas Safe registered engineer. Renew 2-4 weeks before the previous one expires; share the new cert within 28 days.
• EICR (Electrical Installation Condition Report): every 5 years for rented property. Renew 30-60 days before expiry; remediate any C1 (danger present) or C2 (potentially dangerous) findings within 28 days.
• EPC: every 10 years (or sooner if you've made improvements). Currently band E minimum; EPC C or equivalent by 1 October 2030 for in-scope PRS homes unless exempt.

See the UK landlord compliance checklist for the full list of statutory duties + penalties.

Spring (March - May)

• Gutters and downpipes: Clear winter debris (leaves, moss, twigs) and check for damage. Blocked gutters are the leading cause of damp at the eaves and on external walls. Costs ~£80-£150 per property; saves £500-£1,500 on damp remediation.
• External paintwork: Best time for exterior painting and repairs before summer. Cracking paint exposes timber to rot. Front door, window frames, fascias — schedule repaint every 5-7 years.
• Garden: Clear overgrowth, check fences, maintain any shared areas. If your AST puts garden maintenance on the tenant, schedule a check with photos to confirm it's being done. Untended gardens lose 5-10% on rent reviews + delay re-letting.
• Damp check: Inspect for any damp or mould that developed over winter. Look at: bathroom corners (poor extractor ventilation), kitchen behind appliances (steam build-up), exterior north-facing walls (no sun-drying), chimney breasts (failed flashing). Catch early; £30 of mould wash beats £300 of replastering.
• Smoke and CO alarms: Test and replace batteries on every alarm. The Smoke and Carbon Monoxide Alarm Regulations make this a legal duty in England.
• Tenant communication: Send a "spring check-in" message asking about anything that needs attention. Catches issues tenants haven't reported because they think it's "minor."

Summer (June - August)

• Boiler service: Get it done now while engineers are available — don't wait until winter when you're competing for appointments + emergency callout rates kick in. ~£80-£150 per service; combined with the gas safety check at the same visit can save a callout fee.
• Roof inspection: Check for loose or missing tiles while the weather is dry + ladders are safe. A £120 inspection + £80 patching beats a £1,500 ceiling repair after a winter storm exposes the gap.
• Window seals: Check and replace failing seals before autumn rain. Failed double-glazing seals show as condensation between the panes; full replacement is ~£250-£500 per window depending on size.
• Ventilation: Ensure extractor fans and trickle vents are working properly. Poor bathroom ventilation is the #1 cause of mould. Replace clogged filters; consider a humidity-sensing extractor for £80-£120 if mould keeps recurring.
• External areas: Repair pathways, check for trip hazards. Section 11 of the Landlord and Tenant Act 1985 requires you to keep the structure + exterior in repair; trip-hazard injuries to visitors can attract personal-injury claims.
• Mid-tenancy inspection: Summer is a good time for the 6-monthly inspection if your tenancy is on an annual cycle. See mid-tenancy inspections guide.

Autumn (September - November)

• Heating check: Run the heating system before the cold arrives — catch problems early. Bleed radiators, check thermostat function, listen for boiler kettling (limescale build-up). October weekend > January 11pm callout.
• Gutters again: Clear fallen leaves before they cause blockages. The autumn clean is more important than the spring clean — heavy rain + leaf debris + cold = ice expansion + cracked downpipes.
• Pipe insulation: Lag exposed pipes in the loft, garage, and exterior to prevent freezing. £15 of foam lagging prevents a £2,500 burst pipe + insurance excess.
• Draft proofing: Check door and window seals, letterbox covers, and keyhole covers. A draughty rental hits EPC ratings + tenant satisfaction; tenants who pay £200 more in heating bills than expected leave at renewal.
• Tree maintenance: Cut back overhanging branches before winter storms. Branch fall damage is your liability if the tree is on your land; arborist quotes £200-£600 per major prune.
• Insurance review: Check your landlord insurance is up to date. Storm damage, escape of water, and accidental damage are the three highest claims categories October-March.

Winter (December - February)

• Freeze prevention: Remind tenants to keep heating on low (15°C minimum) if away for >3 days. Know where the stopcock is + share the location with tenants. The "tenant on holiday + heating off + cold snap + burst pipe" pattern is the single biggest claim type for landlord insurers in January.
• Emergency contacts: Ensure tenants have your number and an out-of-hours alternative (a trusted plumber/electrician you've pre-arranged). The 2am leak that turns into a 4am ceiling collapse can be capped at the 2am intervention.
• Insurance review: Confirm landlord buildings insurance covers winter risks (escape of water, storm, accidental damage). Tenant contents is their problem; building structure + landlord-supplied contents (carpets, kitchen white goods you provided) are yours.
• Plan spring works: Use quieter months to plan and budget for any major works needed. Get 2-3 quotes for any >£500 job; spring + summer schedules fill up by mid-March.
• Year-end accounts: Pull together your year's expenses, file SA105 / MTD final declaration. See landlord tax year planning checklist.

Building a maintenance reserve

Set aside 1% of the property value per year for maintenance — the industry rule of thumb. For a £200,000 property, that's £2,000/year or about £167/month. For older properties (pre-1950), bump to 1.5%; for new-build (post-2010), 0.5% is usually enough.

Use our maintenance reserve calculator to work out the right amount for your specific property age + value + portfolio size.

The reserve isn't earmarked-only-for-emergencies. Spend it on the seasonal preventive work above; the savings on avoided emergency repairs more than recovers the cost. A landlord who spends their full 1% reserve every year typically has fewer mid-year cashflow surprises than one who doesn't budget for maintenance at all.

How Tendmere helps

Log maintenance tasks, track costs, and set recurring reminders for seasonal checks. Every repair is recorded against the property with photos, receipts, and contractor details — building a complete maintenance history you can share with tenants, buyers, or HMRC during an enquiry. Per-property cost tracking surfaces which property is consuming the most reserve so you can plan disposal or refurbishment decisions with real data, not vibes.

Related guides

• UK landlord compliance checklist — annual statutory duties
• Landlord record keeping: what to track
• Legionella risk assessment for rental property
• Fire safety regulations for landlords 2026
• Landlord insurance guide
• Improving rental property energy efficiency