Fishponds, Bristol
Basement Tanking in Fishponds
Cementitious tanking and cavity drain systems for basements, cellars and below-ground rooms.
Basement Tanking in Fishponds is work we take on regularly, and the Bristol housing stock is a big part of why.
Most of what we see around Fishponds reflects the wider Bristol pattern — dense Victorian terraces, Georgian stone in the older centre and postwar suburban estates, and cement render trapping damp in solid-wall Victorian terraces.
The area sees a mild, wet south-western climate, which is the single biggest factor in how long any render lasts here. Much of the older stock is solid-wall bath and pennant stone, where lime rather than cement is the correct specification.
When basement tanking is the right call. Choose tanking for cellar and basement conversions, persistently wet below-ground rooms, and any space you intend to make habitable.
Guide price in Fishponds
| Guide price | £115–£195 per m² |
|---|---|
| Applied thickness | Multi-coat cementitious system |
| Guarantee | 20 years |
Indicative only. The guide-price tool gives a range for your property; the survey gives the fixed price.
What the job includes
- Cementitious tanking slurries
- Cavity drain membrane systems
- Sump and pump installation
- Type A and Type C waterproofing
- Fillets and junction detailing
- Withstands hydrostatic pressure
If a cheaper specification would do the job, we will say so. If it would not, we will tell you why.
Also covering near Fishponds
Basement Tanking in Fishponds
Tell us about the property and we will call you back to arrange a survey.
What happens next
Four steps from enquiry to finished wall
Free survey
We visit, test the substrate, measure up and identify what caused any existing failure.
Written quote
An itemised fixed price with the system named, materials specified and scaffold included.
Booked in
An agreed start date, scaffold arranged, and a clear run of days set aside for your job.
Finished and guaranteed
Site cleared, scaffold struck, guarantee documents and system warranty issued.
FAQs
Basement Tanking in Fishponds
Can you match my existing render?
Usually, yes. We colour and texture match as closely as we can, though weathered render never matches a fresh batch exactly — we will be honest about how visible a patch will be.
Can any cellar be tanked?
Most can, but the right system depends on water pressure, structural condition and intended use. A survey establishes which approach is appropriate.
How long does basement tanking last?
A correctly designed and installed system carries a 20-year warranty. Type C systems need periodic pump servicing to maintain that.
How long does a rendering job take?
A typical three-bedroom semi is usually one to two weeks on site including scaffold, preparation, application and finishing. Weather, wall condition and the system chosen all move that.
Do I need planning permission to render my house?
Usually not on a standard house, but you will if the property is listed, in a conservation area, or if rendering would significantly change its appearance. We flag it at survey.
Free survey in Fishponds
We will confirm whether basement tanking suits your walls before quoting a price.