South East
Basement Tanking in Oxfordshire
Cementitious tanking and cavity drain systems for basements, cellars and below-ground rooms.
We carry out basement tanking across Oxfordshire and the surrounding Oxfordshire area throughout the year.
Oxfordshire is characterised by Cotswold stone in the west, Georgian and Victorian in Oxford and large modern estates, with conservation-compliant lime work and high-specification finishes on period property the recurring theme on the properties we survey. The area sees a moderate inland climate, which is the single biggest factor in how long any render lasts here.
Local factor. The western half of the county falls within the cotswolds aonb, where finish and colour are subject to real planning scrutiny.
Is basement tanking right for a Oxfordshire property?
Choose tanking for cellar and basement conversions, persistently wet below-ground rooms, and any space you intend to make habitable.
That decision gets made at the survey, not on the phone. We will tell you plainly if a different system would serve the building better — including when a cheaper one would.
Guide price and specification
| Guide price | £115–£195 per m² |
|---|---|
| Applied thickness | Multi-coat cementitious system |
| Curing / drying | 7-14 days |
| Guarantee | 20 years |
| Coverage | All of Oxfordshire — 10 towns and cities |
Indicative only, excluding scaffold, stripping and repairs. Try the guide-price tool for a range based on your property.
What is included
- Cementitious tanking slurries
- Cavity drain membrane systems
- Sump and pump installation
- Type A and Type C waterproofing
- Fillets and junction detailing
- Withstands hydrostatic pressure
- Suitable for habitable conversion
- Salt and negative pressure resistant
Basement Tanking across Oxfordshire
Basement Tanking in Oxfordshire
Tell us about the property and we will call you back to arrange a survey.
Other services in Oxfordshire
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 Oxfordshire — questions
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.
Will you need scaffolding?
For anything above single storey, yes — it is safer and produces a better finish than working off ladders or towers. Scaffold is included and itemised in the quote.
Basement Tanking quotes across Oxfordshire
Free survey, honest advice on whether this is the right system, and a fixed written price.