Thornbury is one of South Gloucestershire’s premier historic market towns—and that brings a unique combination of heritage requirements and modern roofing needs across BS35.
The town spans everything from Grade II listed buildings, traditional clay pan-tiles, and original Welsh slate along the historic town center to expansive mid-century and modern residential developments expanding towards Morton and Alveston. Positioned near the Severn Estuary, Thornbury properties face aggressive wind-driven rain, high humidity, and coastal weather systems that test flashing joints, slate fixings, and edge verges year-round.
Get the lead weight or tile specification wrong on a period home, and you risk conservation issues, water ingress, or rapid timber decay. At TD Roofing, we know BS35 inside out. We understand how to work within local heritage guidelines using reclaimed slate and lime mortar, how to repair porous clay and concrete tiles on established family homes, and how to fit seamless EPDM rubber flat roofs on modern home extensions.
We use 4K drone surveys to inspect every roof slope before quoting—providing you with clear, high-definition photographic proof of your roof’s condition before any work starts.

From the original Welsh slate on Georgian townhouses along Clifton Down Road to the flat-roofed extensions tucked behind Victorian semis on Pembroke Road — every roof in BS8 has its own demands. We know the area as your Roofers in Bristol, the architecture, and exactly what each property type needs.
From period slate roofs along Castle Street to modern open-plan kitchen extensions near Park Road—every property in BS35 has specific structural demands. We know the area as your Roofers in Bristol, the architectural heritage, and exactly what each roof requires.
The competition might offer roofing, but they don't offer the TD standard. We’ve built our reputation on transparency and technical precision.
20 Years of Experience: Thomas Doherty has been repairing and replacing roofs across Bristol and South Gloucestershire for over two decades. You get an experienced tradesman managing your job—never an unsupervised sub-contractor.
Free 4K Drone Survey: We inspect every roof using high-definition drone technology before providing a quote. You see crystal-clear footage of your tiles, leadwork, and chimneys before committing to any work.
BS35 Heritage & Local Knowledge: We understand the exact material specifications, lime mortar ratios, and lead standards required for both Thornbury’s historic core and its modern residential developments.
10-Year Workmanship Guarantee: Every complete re-roof and flat roof installation comes backed by our 10-year guarantee. Fully insured, Checkatrade vetted, with zero payment due until the job is completed to your satisfaction.
TD Roofing Contractors is run by Thomas Doherty—an Irish-born tradesman who built his reputation across Bristol and South Gloucestershire on honest advice, clear pricing, and uncompromised craftsmanship.
Thomas works directly on-site alongside his team. There are no call centers, no high-pressure salespeople, and no unsupervised junior crews. When TD Roofing arrives at your Thornbury home, you get experienced tradespeople focused on fixing your roof cleanly and efficiently.
We are fully vetted on Checkatrade—with independently verified reviews from homeowners across BS35.
We offer rapid emergency callouts across BS35. In most cases during normal working hours, we can have a technician on-site within 2 hours to inspect the roof, secure the structure, and stop active water ingress.
Yes. We specialize in period property restoration across Thornbury. We work with reclaimed slate, Code 4/5 lead flashing, and lime mortar repointing to preserve the historic character and structural integrity of older properties.
We strongly recommend Firestone EPDM Rubber or GRP Fiberglass. Unlike short-lived bitumen felt, these single-ply systems are seamless, UV-stable, and carry a lifespan of 30+ years without drying out or cracking.
For standard re-roofs using like-for-like materials, planning permission is usually not required. However, if your property is Grade II listed or located within Thornbury's Conservation Area, specific material guidelines apply. We can guide you through the correct material selection.
Yes. All complete re-roofs and new flat roof installations come with our 10-year workmanship guarantee alongside manufacturer warranties on all new tiles, slates, and membranes.
Yes. Every review is independently verified. Search TD Roofing Contractors on Checkatrade to read unfiltered feedback from our customers.
1. Weathered & Porous Clay / Concrete Tiles Older residential properties along Gloucester Road and surrounding estates feature tiles that have lost their protective surface glazes after decades of exposure to estuary weather, resulting in water absorption, moss growth, and winter frost cracking.
2. Failed Lead Flashing on Period Chimney Stacks The junction between stone chimney stacks and main roof slopes is a frequent failure point on older Thornbury properties. Aging lead flashings crack or pull away from soft mortar, letting rainwater track down party walls into living areas.
3. Nail Sickness on Heritage Slate Roofs Original iron fixing nails on 100-year-old slate roofs around the town center gradually rust through. As the fixings fail, slates slip out of alignment, creating pathways for driving rain to enter the roof void.
4. Blistering Felt on Extension & Garage Flat Roofs Many homes in BS35 feature mineral felt flat roofs over garages or kitchen extensions. UV radiation causes the bitumen to dry out and split along joist edges, leading to internal ceiling dampness during heavy storms.
If you suspect tile damage, have an active leak, or want a fixed quote on a re-roof, call Thomas directly.
We will conduct a free 4K drone inspection, walk you through the high-resolution footage, and provide a transparent written estimate with zero obligation.
Contact TD Roofing Contractors today for your professional roof assessment in Thornbury.

TD Roofing Contractors are your local roofing contractors in Bristol, providing 20+ years of expert service. From emergency roof repairs to new slate installations, we cover all BS postcodes with quality and integrity.
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