How Often Should You Inspect Your Roof? (UK Maintenance Guide)
A pair of binoculars, a torch and ten minutes twice a year. That is all it takes to stay ahead of 90% of roof problems. Most homeowners only think about their roof when water comes through the ceiling — by which point a £100 fix has become a £1,000 repair. This guide covers the inspection schedule: how often, what to look at, DIY checks versus professional surveys, and what a proper survey actually includes for your money. We are not covering how to diagnose specific problems (see our signs your roof needs repair guide) or maintenance tasks (see how to prevent roof leaks). This is about when and how to check.
Recommended Inspection Schedule
A sensible inspection routine for any UK home:
- Twice a year (spring and autumn) - Do a ground-level visual check of the roof exterior with binoculars. Also inspect the loft space with a torch. Spring reveals winter damage. Autumn gives you time to fix problems before winter arrives.
- After every major storm - High winds, heavy snow and hail can cause sudden damage. A quick look after severe weather catches missing tiles and fallen debris before they cause secondary damage.
- Every two to three years - Book a professional roof inspection. A roofer can access areas you cannot see from the ground, assess the condition of underlay and battens, and spot developing problems that are not yet visible externally.
- Before buying a property - A specialist roof survey is strongly recommended. Standard homebuyer surveys give the roof a cursory glance at best. A dedicated roof survey costs £150 to £400 and can reveal expensive problems before you commit to a purchase.
What to Check: External Inspection
Walk around your property and look up at the roof with binoculars. Here is your checklist:
- Tiles and slates - Look for any that are cracked, slipped, missing or sitting at an odd angle. Pay attention to exposed areas and around roof features.
- Ridge tiles - Check they are sitting straight and level. Wobbling or gapped ridge tiles mean the mortar has failed.
- Flashing - Look at the junction between the roof and any chimney, wall or extension. Lead flashing should sit flat and be firmly bedded. Lifted or missing sections are a common leak source.
- Gutters and downpipes - Check for sagging, overflowing, leaking joints and plant growth. These all indicate blockages or damage.
- Moss and algae - Note any heavy growth, particularly on north-facing slopes. Light moss is normal. Thick, heavy coverage needs attention.
- General alignment - Stand back and look at the ridge line and roof planes. Any dipping, bowing or unevenness could indicate structural issues below.
What to Check: Loft Inspection
Grab a torch and carefully go into the loft. Be mindful of where you step (on joists, not between them). Look for:
- Daylight - On a bright day, any pinpoints of light showing through the roof mean tiles have slipped or underlay has failed.
- Damp or staining - Dark patches on timbers, water stains on rafters or wet insulation all indicate a leak or condensation problem.
- Condensation - Droplets on the underside of the roof covering or on nail tips suggest inadequate ventilation. This is especially common in winter.
- Timber condition - Press a screwdriver into rafters and purlins. Sound timber is firm. Soft, crumbling wood indicates rot that needs addressing.
- Vermin signs - Droppings, nesting materials or gnaw marks. Rats and squirrels cause real damage to wiring, insulation and timberwork.
If you find anything concerning, do not wait. Call a roofer for a proper assessment. Small problems found in a routine check are almost always cheap to fix. For an idea of costs, see our roof repair cost guide.
Professional Roof Surveys: What You Get
A professional roof survey goes well beyond what you can see from the ground or in a quick loft visit:
- Close-up inspection - The roofer accesses the roof surface using ladders or a scaffold tower to inspect tiles, flashing, ridge work and all junctions close up.
- Underlay and batten assessment - By lifting a few tiles, they can check the condition of the underlay and battens. Perished underlay is invisible from outside but is a ticking clock for roof failure.
- Written report - A good survey provides a written report with photos, condition ratings for different elements, recommended repairs and estimated costs. This is valuable documentation for insurance, future sales and maintenance planning.
- Cost - Expect to pay £150 to £400 depending on roof size and complexity. Many roofers offer a free basic inspection if they are also quoting for repair work.
Think of a professional roof survey as an MOT for your roof. It gives you a clear picture of where you stand and what needs doing, with no surprises.
Frequently asked questions
Can I inspect the roof myself or do I need a professional?
You can do a useful basic inspection from ground level using binoculars and from inside the loft with a torch. This catches many common problems. For a thorough assessment of the roof surface, underlay and structural condition, a professional is needed because they have the equipment and experience to access the roof safely and spot issues you would miss.
What is the best time of year for a roof inspection?
Spring (March to April) and autumn (September to October) are ideal. Spring lets you assess any damage from winter storms. Autumn gives you time to carry out repairs before the next round of bad weather arrives. Avoid inspections during or immediately after wet weather, as wet surfaces are slippery and dangerous.
How much does a professional roof inspection cost?
A basic inspection with a verbal report is often free if the roofer is also providing a repair quote. A detailed written survey with photographs and condition ratings typically costs £150 to £400, depending on roof size and complexity. For property purchases, this investment can save you thousands by revealing hidden problems.