Underground risk
Service information, inspection and detection reduce the chance of striking live or important infrastructure.
Groundworks
Excavation
Excavation work needs a defined depth, safe method, material plan and understanding of what may lie below the surface.
Photos, drawings or a short description can help explain the current condition.
Groundworks · Excavation
Start below the finished surface
Digging is straightforward only when access, services, ground stability, groundwater and disposal have already been considered. Unexpected material can quickly affect both time and cost.
Ground, access and water
Material classification
Clean soil, mixed demolition material and contaminated or unsuitable material have different handling and disposal routes.
Temporary stability
Excavations near buildings, boundaries or people may require support, barriers and controlled sequencing.
What to mention
What Flyson needs to understand about the ground
- Describe what is already known about underground risk.
- Explain the priority or constraint around material classification.
- Include enough context to discuss temporary stability without assuming a product or method before the property is understood.
Questions specific to excavation
Is disposal included in excavation pricing?
It should be stated clearly. Volume increases after soil is loosened, and tipping arrangements can be a major cost.
What if groundwater enters the excavation?
The method may need pumping, drainage or revised sequencing. Water conditions should be recorded and managed rather than buried.
Can excavated soil remain on site?
Only where there is enough suitable space and an approved use for it without blocking access or damaging retained areas.
Continue exploring groundworks
Site preparation
Good site preparation protects access, neighbours, existing property and the programme before the main construction work begins.
Explore site preparationDrainage groundworks
Drainage work is about levels, capacity, access for maintenance and a lawful destination for water or waste.
Explore drainage groundworksFoundations
Foundation work begins with the load, ground and nearby constraints, not with a standard trench depth copied from another property.
Explore foundationsRelated work
View landscapingLandscaping
Retaining, steps, paving and lawn preparation depend on coordinated levels and water movement.
Related work
View extensionsExtensions
Extension setting-out, foundations, drainage and finished floor levels begin in the ground.
Project enquiry
Ask about excavation.
Explain what the ground must support and any known access, level, drainage or excavation constraints.