BH25 garden-building foundations
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
Extra space on a foundation that fits
New Milton and Barton-on-Sea combine established estates, coastal exposure and mapped changes between clay, sand and gravelly deposits. A garden fall or restricted side route can be just as influential as the geological context.
JustBases compares poured concrete, installed ground screws and raised timber platforms for the specific building. Approximate dimensions and a BH25 postcode are enough to begin with Craig.
What are you planning?
Three easy steps
We bring the questions together and make the quotation easy to understand.
Call, WhatsApp or enquire online with its intended use, size and location.
Craig considers ground, exposure, levels and access and visits when helpful.
The footprint is marked and constructed to the agreed level ready for the building.
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 solid continuous foundation for substantial rooms whose design calls for a slab.
From £695 for 8' × 6' 48 ft² / 4.46 m²
Hot-dip galvanised point supports beneath a compatible timber or steel frame.
Installed screws from £1,180 for 8' × 6'; frame quoted separately 48 ft² / 4.46 m²
A structural platform for suitable rooms above uneven or gently sloping gardens.
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 Craig the building type, approximate footprint and BH25 postcode. We will compare the realistic New Milton base options and provide a written price.
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 New Milton
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
"Arrived on time, 2 guys very friendly and competent. Excellent job, impressive tidying up."
— Verified Customer
Checkatrade · BH11 · 2019-05-30
Work listed by the source: Concrete base for summer house
"Craig came to give a quote and completed work within time scale. Very friendly company, very helpful and the job was tidy and looks perfect. Would highly recommend."
— Verified Customer
Checkatrade · KT11 · 2018-06-22
Work listed by the source: Base for log cabin
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.
A daily-use room needs an accurate base beneath its floor, doors and glazing and a sensible relationship with the surrounding garden.
Suitable base options
Concrete
Continuous support for substantial rooms designed around a slab.
Ground screws and frame
Useful for compatible rooms where excavation, programme or levels favour point supports.
Raised timber
Can create a level platform for selected timber rooms above a modest fall.
On Barton-on-Sea plots, exposure and slope may inform the room specification; elsewhere, clay, access or established planting may be the larger practical issue.
Ask about this base →
Large timber buildings need support under perimeter rails and internal floor bearers at the intended positions.
Suitable base options
Concrete slab
A good fit where the supplier requires rigid continuous support.
Screw-supported frame
Can align with an approved bearer plan through timber or galvanised steel.
Raised timber platform
Useful for compatible cabins on uneven ground.
A base drawing helps before installation, while approximate dimensions are sufficient for initial advice.
Ask about this base →
Equipment weight and floor stiffness can alter foundation needs for gyms, simulators and acoustic rooms.
Suitable base options
Concrete base
Often the simplest foundation beneath heavy equipment.
Engineered screw frame
Can work when frame and floor are designed around the loads.
Raised timber base
Possible for lighter specialist uses with suitable support spacing.
Describe what the room will contain and Craig will keep any follow-up specific to the price and structure.
Ask about this base →
A pod's chassis or bearer plan and intended use should set the foundation positions and finished height.
Suitable base options
Ground screws with frame
Often suited to defined supports and reduced excavation.
Concrete foundation
Appropriate when the manufacturer requires a slab.
Raised timber platform
Can suit compatible lightweight pods above uneven ground.
Sleeping or letting use may change planning requirements, especially near authority boundaries; the base can still be discussed meanwhile.
Ask about this base →Local ground context
The coastal Hampshire Basin sequence includes Barton Clay, Barton Sand and gravelly superficial deposits. Ground can change from more freely draining plateau material to cohesive clay, while Barton-on-Sea adds coastal slope and exposure.
Garden drainage, previous hardstanding, roots and imported soils create further variation. We use regional evidence to avoid assumptions, not to prescribe a base from the town name.
You do not need to identify clay or arrange testing before calling. Share any cracking, water or previous work you already know about and we will advise proportionately.
Access handled with you
New Milton often means mature boundaries and side passages, while Barton-on-Sea gardens may include slopes, retaining features or exposed positions. Northern rural addresses can add longer drives and park-boundary questions.
These are normal planning details for our team. Share an optional photograph, and Craig will visit where the route or levels need confirmation.
Helpful if you have them—not required before you call:
Useful local guidance
New Forest District Council covers most New Milton addresses, with the National Park boundary close to northern parts of the parish. Use, size, height, position and property rights determine permitted development.
The adopted New Milton Neighbourhood Plan is under review and includes conservation and special-character evidence. Keep planning checks tied to the exact property and continue the base quotation alongside them.
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 south-coast businesses are useful places to research rooms and cabins. Ask the selected supplier for the external footprint and base detail.
Nearby Christchurch garden rooms and timber buildings.
Timber-building range with a Lymington display site.
New Forest rooms, offices and garden buildings.
These are independent research links, not endorsements or partnerships. Confirm current delivery area, specifications and foundation needs directly.
Service area
Our service includes New Milton, Barton-on-Sea, Ashley and surrounding BH25 addresses.
Straight answers
A building type, approximate size and postcode are enough to start.