
Damp Proofing in Patchway
Bristol Driveways & Roofing carry out damp proofing for domestic and commercial properties across Bristol, Patchway, and the surrounding areas, addressing damp at its source rather than covering the symptoms.
Damp Detection and Damp Protection
Bristol Driveways & Roofing is a roofer offering damp proofing alongside our roofing services in Bristol, Patchway and throughout the wider region. Damp rarely has a single cause, so our approach starts with identifying where moisture is entering the property before recommending the right treatment.
Effective damp proofing begins with damp detection, since treating the wrong area of a property can leave the underlying issue untouched. Our team inspects walls, floors, and areas prone to moisture ingress to establish the cause, which may be rising damp, penetrating damp, or condensation, each of which needs a different approach. Once the source is identified, we recommend damp protection measures suited to the property, rather than applying a standard treatment regardless of the cause.
Damp Proof Courses and Basement Tanking
A damp proof course is one of the most established methods of protecting a property from rising damp, forming a barrier near the base of the walls that stops moisture travelling upward from the ground. Where an existing damp proof course has failed or was never installed, we assess the walls and recommend a suitable damp proof system for the property, working from the results of our earlier damp detection survey.
For basements and below-ground areas, tanking offers a further layer of damp protection. This involves applying a waterproof membrane or coating to internal walls and floors, which is particularly useful in older properties across Bristol and Patchway where basements were not originally built with modern damp resistance in mind. Tanking is often combined with a damp proof course and improved external drainage, since a basement is exposed to ground moisture from more directions than a standard ground floor room.


Plastering and Rendering After Damp Treatment
Once damp treatment is complete, affected plaster often needs to be removed and replaced, since damaged plaster can hold moisture and salts that continue to cause problems even after the source has been addressed. We carry out replastering as part of the damp proofing process, using materials suited to the treated area. Externally, rendering can also form part of the solution, protecting walls from penetrating damp caused by driving rain or degraded pointing.
Leak Detection: Roofs, Chimneys, and Lead Flashing
Damp inside a property is often traced back to a leak somewhere in the roof, rather than an issue with the walls at ground level. Our leak detection work covers roofs, chimneys, and lead flashing, since flashing that has lifted, cracked, or corroded is a common and easily overlooked source of water ingress. Chimneys are a particular weak point, since the joint between a chimney stack and the surrounding roof relies on flashing staying intact through years of weather exposure.
Identifying and repairing these issues early prevents damp from spreading into ceilings, walls, and eventually the interior finish of the property. Left unaddressed, a slow roof leak can travel a considerable distance from its original entry point before it becomes visible internally, which is why we check the roof, chimney, and flashing as a matter of course whenever damp is reported inside a property.

Retaining Walls, Excavation, and Drainage Works
External ground conditions play a significant part in how much moisture reaches a building. Retaining walls, when correctly built, hold back soil and prevent water from pooling against the foundations, while excavation works and drainage works redirect surface water away from the property altogether. We often recommend these measures alongside internal damp proofing, since treating the inside of a wall without addressing the external drainage rarely solves the problem for good.
Domestic and Commercial Damp Proofing
We complete damp proofing work for both domestic and commercial properties across Bristol and Patchway, adjusting the scope of work to suit the building and its use. Depending on the property, our damp proofing services can include:
- Damp detection surveys and diagnosis
- Damp proof course installation and repair
- Basement tanking
- Replastering and rendering
- Leak detection and repair to roofs, chimneys, and flashing
- Retaining walls, excavation, and drainage works

Your Trusted Local Roofer
As an experienced roofer working across Bristol and Patchway, we bring the same attention to groundwork and drainage to our damp proofing projects that we apply to driveways and roofing. Alongside damp proofing, we also offer a range of other roofing services. We encourage you to explore our website further to see the myriad ways we can help with your property renovation project.
FAQs – Damp Proofing
Common signs include discoloured or peeling paint, a musty smell, black mould, and plaster that feels damp or crumbles to the touch.
Rising damp travels upward from the ground through walls, while penetrating damp enters from an external source such as a leak, cracked render, or faulty flashing.
A correctly installed damp proof course can last several decades, though older properties may need the system assessed and repaired if damp symptoms reappear.
Yes. Effective damp proofing includes leak detection and repair where the damp originates from the roof, chimney, or flashing, rather than treating the symptoms alone.

Get in Touch
If you are dealing with damp and need an experienced roofer for damp proofing across Bristol or Patchway, get in touch with our team. Call 07539 153508 or 01173 224988 to arrange a survey.