--- title: "Chimney Flashing Inspection and Cleaning | Nottingham Roof Cleaning" description: "Why chimney flashing is the most common roof leak point — and how to spot problems early." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does the work discussed in this guide typically cost in Nottingham?", "acceptedAnswer": { "@type": "Answer", "text": "For most Nottingham properties, a full soft wash with moss removal and biocide falls between £400 and £950. Biocide-only treatments start around £250. Restoration work with re-colouring is a separate service and starts around £1,600. We provide fixed written pricing after a free inspection." } }, { "@type": "Question", "name": "What treatment schedule keeps moss under control in Nottinghamshire?", "acceptedAnswer": { "@type": "Answer", "text": "A full clean every 3–5 years is standard. Roofs under tree cover, on north-facing slopes, or in the wetter west of the county often benefit from a biocide top-up at 24 months to hold results between full cleans." } }, { "@type": "Question", "name": "Should I choose soft wash or pressure washing?", "acceptedAnswer": { "@type": "Answer", "text": "Soft wash. Pressure washing damages the tile surface, voids many manufacturer warranties, and forces water into places it doesn't belong. Soft wash is slower but preserves roof life and delivers longer-lasting cleanliness — the only method we use on domestic tile and slate." } }, { "@type": "Question", "name": "How long will results last on my Nottingham roof?", "acceptedAnswer": { "@type": "Answer", "text": "Expect 3–5 years of visibly clean tiles and up to 5–7 years of heavy-moss control with a mid-cycle biocide top-up. 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[Home](/) 2. / [Blog](/blog) 3. / Chimney Flashing Inspection and Cleaning 7 min read · Updated 2026-01-15 # Chimney Flashing Inspection and Cleaning Lead flashings around chimneys are the leading cause of roof leaks on Nottingham properties. Inspection and re-bedding pay back many times their cost by preventing damp damage to internal walls and chimney breasts. [Get a free quote →](/contact)[Estimate your cost](/tools/cost-calculator) - Fully insured - Local Nottingham experts - Fixed-price quotes - Soft-wash specialists - Updated for 2026 Written by JW James Whitmore Founder & Lead Roof Technician, Nottingham Roof Cleaning James has spent 12 years cleaning, inspecting and restoring roofs across Nottinghamshire. Formally trained in soft-wash methodology, IPAF-certified for powered access, and a working member of the UK Roof Cleaning Association. He personally inspects the majority of jobs the company quotes. - SoftWash UK — Accredited Technician - IPAF (Powered Access) — Certified - PASMA (Mobile Scaffolds) — Certified - Environment Agency — Registered Waste Carrier - UKRCA — Member Lead flashings around chimneys are the leading cause of roof leaks on Nottingham properties. Inspection and re-bedding pay back many times their cost by preventing damp damage to internal walls and chimney breasts. ## Why chimneys leak first The junction between a chimney stack and the roof slope is the hardest weathertight detail on most roofs. Lead flashing forms the primary barrier, dressed into the tile courses and up against the brickwork. Over time three things go wrong: the lead can crack from thermal expansion, the mortar pointing above the flashing can wash out, and the lead can lift where fixings loosen. Any of the three creates a water path. ## What to look for Visible warning signs to check during any roof survey: - Cracked or split lead — often at internal corners - Missing or loose pointing above the flashing line - White salt deposits on brickwork below the chimney - Damp patches on chimney breast walls inside - Vegetation growth in the chimney/roof junction ## Typical remedial work Straightforward re-pointing costs £150–£300. Full flashing replacement runs £400–£900 depending on chimney size and access. Both are dramatically cheaper than the internal damp repairs a neglected chimney junction eventually forces. ## Combining with a roof clean Booking flashing work at the same time as a scheduled roof clean saves the access-equipment mobilisation cost twice. It's the natural moment to catch minor issues before they escalate. ## Get a free Nottingham roof quote If you'd like a fixed-price quote for your Nottingham property, request a free roof inspection using the form on this page — we'll typically respond within one working day. Every quote is written, fully insured and includes gutter clearance as standard. Technically reviewed Sarah Alden MCIOB — Chartered Construction Manager — independent technical reviewer. Sarah is a Chartered member of the Chartered Institute of Building with 18 years in domestic roofing surveys. She independently reviews the technical accuracy of published content on this site. ### Get a fixed-price quote Ready to have your roof cleaned properly? Request a free written quote — we respond within one working day. [Request a quote](/contact)[Try the cost calculator](/tools/cost-calculator) * * * ## More Nottingham roof guides - [How Often Should You Clean Your Roof in Nottingham?](/blog/how-often-clean-roof-nottingham) - [Does Moss Damage Roof Tiles in UK Weather?](/blog/does-moss-damage-roof-tiles) - [Soft Wash vs Pressure Washing Roofs — Which Is Best?](/blog/soft-wash-vs-pressure-washing-roofs) - [Roof Cleaning Costs in Nottinghamshire Explained](/blog/roof-cleaning-costs-nottinghamshire) ## Frequently asked questions How much does the work discussed in this guide typically cost in Nottingham? For most Nottingham properties, a full soft wash with moss removal and biocide falls between £400 and £950. Biocide-only treatments start around £250. Restoration work with re-colouring is a separate service and starts around £1,600. We provide fixed written pricing after a free inspection. What treatment schedule keeps moss under control in Nottinghamshire? A full clean every 3–5 years is standard. Roofs under tree cover, on north-facing slopes, or in the wetter west of the county often benefit from a biocide top-up at 24 months to hold results between full cleans. Should I choose soft wash or pressure washing? Soft wash. Pressure washing damages the tile surface, voids many manufacturer warranties, and forces water into places it doesn't belong. Soft wash is slower but preserves roof life and delivers longer-lasting cleanliness — the only method we use on domestic tile and slate. How long will results last on my Nottingham roof? Expect 3–5 years of visibly clean tiles and up to 5–7 years of heavy-moss control with a mid-cycle biocide top-up. Regular gutter clearance and trimming overhanging branches extend results further. ### Get a free roof cleaning quote Tell us about your property and we'll respond within one working day. 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