South Glamorgan · Wales
Excavation and sub-base in Cardiff
If you are planning a driveway dig-out and sub-base in Cardiff, start with a free survey. We measure, check levels and drainage, and set out each part of the price in writing.
- Guide price
- Priced after survey
- Postcodes
- CF10, CF11, CF24
- Survey
- Free, no obligation

What excavation and sub-base involves
Excavation and sub-base work is the groundwork under a resin surface: digging out the old drive and soft ground, removing the spoil, and building up compacted layers of crushed stone and a binder course that will carry cars without moving.
Groundwork prices in Cardiff depend on what is found below the surface, so the survey looks closely at ground conditions, access and drainage. Cardiff has everything from tight terraced frontages to large suburban drives, so no two quotes look the same.
Across South Glamorgan, the projects we price include setting a channel drain across a garage entrance, fitting setts or steel edging around a new drive and preparing a drive to meet a new dropped kerb. More about excavation and sub-base.
Prices for excavation and sub-base in Cardiff
For South Wales, where typical costs are below the UK average, these are the ranges we would expect before seeing your property.
| Service | Guide price inc VAT |
|---|---|
| Excavation and sub-base | Priced after survey |
| Resin bound driveways | £40–£105 per m² |
| Resin bonded driveways | £30–£90 per m² |
Based on South Wales rates. See the full price guide or price your own project.
Planning in Cardiff
Groundworks for a domestic drive do not usually need planning permission in themselves, but the finished surface follows the front-garden drainage rules, and shallow services such as water pipes and cables are located before digging.
General information for Wales, not legal advice.
Weather and working days
South Wales is wetter than most of England, so a permeable build or a planned route for water is essential on every drive. Surveys run all year; resin work itself waits for a dry day above about 5°C.
How it works
Get a guide price online, book a free survey, receive an itemised written quote, then agree a date. Most drives over a ready base are laid in a day.
Excavation and sub-base in Cardiff: questions
Is the price fixed for Cardiff jobs?
Yes, once the scope and specification are agreed in writing. If hidden ground conditions turn up, we explain and agree any change with you before doing extra work.
Who approves dropped kerbs in Cardiff?
Dropped kerb consent comes from your council as local highway authority. We help with the application and get your drive ready to meet the new crossing.
How soon can you survey in Cardiff?
Call 0800 088 6341 or use the quote tool and we will offer survey dates. Surveys are free and run all year.
Excavation and sub-base near Cardiff
- Penarth 2.9 mi
- Barry 7.1 mi
- Llantwit Major 14.0 mi
- Caerphilly 6.7 mi
- Risca 9.5 mi
Other services in Cardiff
- Resin bound driveways
- Resin bonded driveways
- Resin over tarmac and concrete
- New resin driveways (full dig-out)
- Permeable SuDS driveways
- Driveway extensions and widening
- Resin patios
- Resin garden paths
- Resin steps
- Accessible resin ramps
- Driveway drainage and soakaways
- Driveway edging and borders
- Dropped kerb applications
- Resin driveway repairs
- Resin driveway cleaning
- Resin driveway restoration
- Commercial resin surfacing
Free survey · itemised quote
Book a free survey in Cardiff
We cover CF10, CF11 and CF24 and nearby. Tell us about your project and we will be in touch to arrange a visit.
- Base, edging and drainage priced line by line
- Real blend samples shown in daylight
- Price fixed in writing once the spec is agreed
Prefer to talk? 0800 088 6341 or