Garden-building foundations across SO50
Ground screws, concrete and raised timber-frame bases for garden rooms, offices, cabins and substantial garden buildings—with clear prices and a full 10-year guarantee.
Illustrative garden-room example
A practical foundation for useful extra space
Compact town gardens, larger Bishopstoke or Fair Oak plots and sites closer to the Itchen valley can differ in access, ground and level. The building's floor support and intended use add another important layer.
JustBases compares concrete, ground screws and raised timber for the proposed room. An approximate footprint and SO50 postcode give Craig enough to begin the quotation conversation.
What are you planning?
Three easy steps
We ask what is useful and put the agreed system, frame and extras into writing.
Call, WhatsApp or use the form with the building type, dimensions and location.
Craig considers access, levels and site context and visits where useful.
The footprint is set out and the foundation built ready for the room supplier.
Choose the foundation, not the complication
You do not need to choose one now. We compare the building, garden and access, then explain the simplest suitable option.
A rigid continuous base for substantial rooms whose floor requires full-area support.
From £695 for 8' × 6' 48 ft² / 4.46 m²
Driven steel points for a compatible frame, with less excavation across the whole footprint.
Installed screws from £1,180 for 8' × 6'; frame quoted separately 48 ft² / 4.46 m²
A treated structural platform for suitable timber rooms above uneven or gently falling ground.
From £840 for 8' × 6' 48 ft² / 4.46 m²
Useful guide prices
These are current guide prices for standard installations. The written quotation confirms access, levels, preparation, ground conditions, support layout and any optional DPM or service conduit.
Get your exact written price| Base size | Concrete | Raised timber | Installed ground screws |
|---|---|---|---|
| 10' x 8' 3m x 2.4m 80 ft² / 7.43 m² | £965 | £1,195 | £1,280 |
| 12' x 8' 3.6m x 2.4m 96 ft² / 8.92 m² | £1,075 | £1,375 | £1,340 |
| 12' x 10' 3.6m x 3m 120 ft² / 11.15 m² | £1,195 | £1,585 | £1,400 |
| 14' x 10' 4.2m x 3m 140 ft² / 13.01 m² | £1,295 | £1,820 | £1,460 |
| 16' x 10' 4.8m x 3m 160 ft² / 14.86 m² | £1,445 | £1,995 | £1,500 |
| 20' x 10' 6m x 3m 200 ft² / 18.58 m² | £1,695 | £2,415 | £1,600 |
Ground-screw prices are for the installed screws only. A suitable timber or galvanised-steel support frame can be added to the written quotation. Raised-timber prices use suitable concrete or composite posts. Your quotation confirms exactly what is included.
Easy to start, free to ask
Tell us the building type, approximate footprint and SO50 postcode. Craig will explain the practical Eastleigh base options and send a written quotation.
Talk to Craig about your garden room base
Not sure which base you need? Craig will listen to what you are planning and explain the easiest next step.
Online quote requests are normally answered within 24 hours, excluding weekends.
Just give us your contact details and a short description of what you want to build. We will guide you through the rest.
Your enquiry
Garden room base installation in Eastleigh
Clear reassurance
The JustBases guarantee covers our installation workmanship and the foundation materials we supply, subject to the written quotation. It is separate from the garden-building supplier's warranty.
Realistic timing
Ground screws are normally installed in one day. Concrete bases are normally installed within two working days, with the next-stage timing confirmed for the project.
Frames available
We can supply a treated timber or galvanised-steel support frame where it forms part of the agreed ground-screw solution.
Genuine feedback on related building-base work
"Craig and his team have been fantastic. Had the team over twice now to help with our garden project and both times I've been super impressed with the work. The team are extremely hard working but most important to me is the quality of their workmanship. The fencing looks amazing and the cabin was spot on in terms of dimensions and perfectly level. I would highly recommend."
— Verified Customer
Checkatrade · SO53 · 2024-01-28
Work listed by the source: Garden fencing and cabin base
"From estimate to completion of work, the whole experience was a pleasure. Highly professional team and superb standard of work."
— Verified Customer
Checkatrade · SO30 · 2018-03-19
Work listed by the source: 12 x 8 concrete base for summer house
"Craig gave me a quote on Thursday and started and completed the work the next day. The team arrived at the time agreed and completed the work to a great standard. I would recommend them for your building needs and would not hesitate to use them again."
— ashley53624, Eastleigh
MyBuilder · SO50 · 2023-10-03
Work listed by the source: New fence and foundation shed base
Match the base to the space
The building name is only the starting point. We also consider its footprint, support arrangement, intended use and the garden it needs to fit.
An insulated workspace needs dependable support under doors, glazing and the floor, plus a sensible garden threshold.
Suitable base options
Concrete
Continuous bearing for rooms designed around a full slab.
Ground screws and frame
Can suit compatible rooms where excavation or access favours point supports.
Raised timber
Useful for selected timber rooms over modest level changes.
A compact Eastleigh side passage and a larger Fair Oak garden may point towards different installation logistics even for the same room model.
Ask about this base →
A substantial cabin needs support at its perimeter and internal bearer positions.
Suitable base options
Concrete slab
Suitable where a supplier requires continuous rigid support.
Screw-supported frame
Can coordinate point supports with an approved bearer grid.
Raised timber platform
Practical for compatible cabins on uneven ground.
Send a supplier drawing if available, but do not wait for one before asking Craig for an initial price discussion.
Ask about this base →
Heavy equipment and room-specific floor requirements can influence foundation selection.
Suitable base options
Concrete base
Often the simplest response to heavy equipment.
Engineered screw frame
Can work when support and floor are designed for the loads.
Raised timber base
Possible for lighter specialist uses with suitable spans.
Describe intended equipment and we will focus only on information that changes the base or price.
Ask about this base →
Pods need support where their chassis or bearers transfer load and enough clearance for the intended installation.
Suitable base options
Ground screws and frame
Often suited to defined supports and focused excavation.
Concrete foundation
Appropriate when a full slab is specified.
Raised timber platform
Can support suitable lightweight units on an agreed grid.
Sleeping or letting use can affect planning; foundation choices can be discussed while the use is confirmed.
Ask about this base →Local ground context
BGS sheet 315 records river-terrace gravels around Eastleigh, variable clay and loam cover and alluvium near the Itchen system. Made ground is also a realistic consideration on redeveloped urban plots.
Compact town sites, Bishopstoke valley areas and Fair Oak gardens should therefore not share one foundation assumption. The actual footprint and building guide our comparison.
No ground report is required before contact. Mention drainage, old structures or level changes if known and we will take it from there.
Access handled with you
Eastleigh town properties may have compact side access and parking, while Bishopstoke and Fair Oak can offer larger plots with slopes, trees or longer routes.
An optional photograph helps us plan materials or machinery. Craig can visit when access, drains or levels need to be seen before the price is fixed.
Helpful if you have them—not required before you call:
Useful local guidance
Whether a garden room is permitted development depends on the complete proposal: its use, height, position, footprint and property rights. Foundation material does not decide it.
The council's mapping provides tree and conservation information, and Bishopstoke has a conservation area. Apply checks to the exact property and continue the foundation enquiry meanwhile.
Planning information is a practical starting point, not legal or planning advice. Confirm the position for the exact property and building with the relevant authority.
Choosing the building
These nearby businesses are useful while comparing rooms, offices and cabins. Ask for exact dimensions and floor-support requirements.
Eastleigh showroom for garden rooms and offices.
Southampton timber-building supplier serving Eastleigh.
Regional garden rooms, cabins and timber buildings.
Independent research links only, not endorsements or partner relationships. Confirm service area and base details directly.
Service area
Our coverage includes Eastleigh, Bishopstoke, Fair Oak and surrounding SO50 communities.
Straight answers
A building type, approximate size and postcode are enough to start.