Gwynedd · Wales
Excavation and sub-base in Caernarfon
If you are planning a driveway dig-out and sub-base in Caernarfon, 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
- LL55, LL61, LL56
- 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.
In Caernarfon, the survey for this work is about levels, falls and ground conditions: where water goes now, what is under the surface and how materials will reach the site. Plots around Caernarfon are often generous, so turning areas and longer runs of edging are part of many quotes.
Across Gwynedd, the projects we price include setting a channel drain across a garage entrance, digging out an old drive and building a permeable sub-base and preparing a drive to meet a new dropped kerb. More about excavation and sub-base.
Prices for excavation and sub-base in Caernarfon
For North 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 driveway cleaning | £75–£180 per visit |
| New resin driveways (full dig-out) | £70–£110 per m² |
Based on North Wales rates. See the full price guide or price your own project.
Planning in Caernarfon
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
North Wales ranges from mild coastal towns to wetter upland areas, so drainage and laying days are planned with the weather in mind. If the weather turns on the day, we move the pour rather than risk a surface that will not cure.
How it works
You start with a guide price, we visit to measure and check the site, you get a written quote, and we book the work for suitable weather.
Excavation and sub-base in Caernarfon: questions
Who approves dropped kerbs in Caernarfon?
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.
Do I need planning permission in Caernarfon?
Wales has its own permitted development rules on the same principle: a front-garden hard surface should be porous or drain to a permeable area on the property. A fully permeable resin bound build, with a porous base under it, meets that test.
What postcodes do you cover around Caernarfon?
We cover LL55, LL61 and LL56 and the surrounding districts, including Bangor and Holyhead.
Excavation and sub-base near Caernarfon
Other services in Caernarfon
- 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 Caernarfon
We cover LL55, LL61 and LL56 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