Groundworks become expensive to change once buried. Levels, ground conditions, underground services, drainage, spoil volume and the structure supported above should be established before excavation starts.
This is the LP10 starting guide to domestic groundworks work. It combines the main questions customers search for into one substantial page instead of creating many lookalike pages. Use it to identify the job, gather evidence and compare scopes. It does not diagnose a property remotely or promise that a provider is currently available.
Jobs and decisions covered in this guide
- Foundations and slabs: groundworks quote guide
- Strip, pad foundations or a concrete slab?
- Excavation, spoil removal and restricted site access
- Service trenches, drainage and utility ducts
- Concrete bases, retaining work and ground preparation
The sections below deal with each of those searches in context. Closely related wording belongs on this page so the customer and search engine reach one clear answer rather than several pages competing with each other.
Define the complete scope first
A domestic groundworks enquiry may involve several connected tasks. Mark every item below as required, optional, already complete or unknown:
- Site clearance, excavation, reduced levels and formation
- Foundations, slabs, bases, retaining or structural groundwork
- Foul, surface-water, duct and service trenches
- Imported stone, concrete, reinforcement and compaction
- Spoil classification, removal, testing and reinstatement
Also identify anything that must remain untouched. This stops the visible finish being priced while access, preparation, testing, disposal or reinstatement is silently left for somebody else.
Foundations and slabs: groundworks quote guide
The decision: Pricing excavation, formation, reinforcement, concrete, inspections and spoil from actual design and ground information.
A responsible quotation separates the known scope from assumptions and possible remedial work. Size matters, but access, condition, product choice, protection, disposal and the order in which other trades attend can matter just as much.
Keep this part of the enquiry separate enough to compare. Record the present condition, the outcome required, products already chosen and anything that must be prepared or reinstated. Ask the provider to state what evidence or visit is needed before the method and price become firm. If connected work changes the sequence, put that dependency in the written scope rather than relying on an assumption.
Strip, pad foundations or a concrete slab?
The decision: Comparing foundation forms only against structural design, ground conditions, load, drainage, excavation and inspection requirements.
A useful comparison holds the job requirements constant and then tests each option against condition, performance, maintenance, disruption, appearance and compatibility. A product is not automatically better simply because its headline specification is higher.
Keep this part of the enquiry separate enough to compare. Record the present condition, the outcome required, products already chosen and anything that must be prepared or reinstated. Ask the provider to state what evidence or visit is needed before the method and price become firm. If connected work changes the sequence, put that dependency in the written scope rather than relying on an assumption.
Excavation, spoil removal and restricted site access
The decision: Matching plant, labour, haul route and disposal to excavation volume, soil type, gates and neighbouring constraints.
Most avoidable delays come from missing decisions, hidden preparation or one trade arriving before another has completed enabling work. Agree who surveys, who supplies, who prepares, who tests and who finishes before accepting a start date.
Keep this part of the enquiry separate enough to compare. Record the present condition, the outcome required, products already chosen and anything that must be prepared or reinstated. Ask the provider to state what evidence or visit is needed before the method and price become firm. If connected work changes the sequence, put that dependency in the written scope rather than relying on an assumption.
Service trenches, drainage and utility ducts
The decision: Coordinating levels, separations, bedding, draw cords, inspection and accurate records before trenches are closed.
Most avoidable delays come from missing decisions, hidden preparation or one trade arriving before another has completed enabling work. Agree who surveys, who supplies, who prepares, who tests and who finishes before accepting a start date.
Keep this part of the enquiry separate enough to compare. Record the present condition, the outcome required, products already chosen and anything that must be prepared or reinstated. Ask the provider to state what evidence or visit is needed before the method and price become firm. If connected work changes the sequence, put that dependency in the written scope rather than relying on an assumption.
Concrete bases, retaining work and ground preparation
The decision: Defining loads, sub-base, compaction, drainage, edges and structural information for durable external bases and level changes.
Most avoidable delays come from missing decisions, hidden preparation or one trade arriving before another has completed enabling work. Agree who surveys, who supplies, who prepares, who tests and who finishes before accepting a start date.
Keep this part of the enquiry separate enough to compare. Record the present condition, the outcome required, products already chosen and anything that must be prepared or reinstated. Ask the provider to state what evidence or visit is needed before the method and price become firm. If connected work changes the sequence, put that dependency in the written scope rather than relying on an assumption.
Details that can change the method or quotation
- Dimensions, depths and design information for the finished work
- Soil type, groundwater, contamination and made ground
- Known services, trial holes and restricted machine access
- Spoil expansion, haul route and lawful disposal
- Inspection points, weather, temporary works and neighbouring structures
Measurements help an initial response, but condition often determines the final method. Give dimensions as approximate unless verified. Product links, complete model numbers and drawings are more useful than “standard”. State any deadline and why it matters, then let the provider confirm a realistic sequence after checking dependencies.
Evidence to send with the first request
Clear, current evidence reduces avoidable messages and helps a suitable provider decide whether a visit is needed:
- Site plan with levels and work boundaries
- Wide views of access, slopes and adjacent buildings
- Structural and drainage drawings where available
- Utility searches and known service positions
- Ground reports, trial-pit information or previous site history
Include the full postcode, property type, occupancy constraints, parking or access limits and the safe entry arrangement. Do not upload passwords, security codes, identity documents or unrelated personal information. If something cannot be photographed safely, describe it and leave the inspection to the professional.
How to compare written quotations
Compare scope before price. Look for the proposed method, materials or performance specification, preparation, protection, waste handling, testing, making good, exclusions, payment stages and how variations will be approved. Check whether the figure follows a site visit or remains provisional. Confirm who buys each product and who carries the risk if a customer-supplied item is unsuitable, damaged or delayed.
Check the competence, registration, insurance or certification relevant to the exact task rather than assuming one credential covers every service. For regulated work, ask what notification, inspection, certificate or record applies and use the official sources on this page to verify the route.
Trade boundaries and connected work
Excavation can undermine structures or strike services. Structural, drainage, utility, contaminated-land and confined-space risks need suitable design, locating and supervision rather than assumptions.
Engineers, surveyors, drainage specialists, utility providers, concrete suppliers and builders may all depend on the groundwork. Hold points and inspection responsibility should be written into the programme.
Where more than one trade is needed, request one joined-up sequence with separate written scopes. LP10 can receive a bundled enquiry, while each provider remains responsible for confirming their own availability, competence, method and quotation.
Useful next step
Write a short outcome statement, attach the evidence above and separate must-have work from optional work. Read the Groundworks service overview, explore connected help from building and drainage, or send one or several trades to LP10 for a quote.