Call, message or send the form
Tell Craig about the conservatory, approximate size and postcode. You do not need a finished specification to start.
Specialist foundation installation
Conservatory Foundations: Ground Screws & Concrete Bases
Give your new conservatory a sound start. JustBases installs ground screws, concrete pads and traditional foundations across Dorset, Hampshire and South Wiltshire. We work with homeowners and conservatory companies to agree the right support for the chosen room and base system.
50+ years
Family groundwork experience
Full 10-year
Written JustBases guarantee
Call Craig directly
Friendly practical advice
One clear price
Written foundation scope
Start with what you want to build
The right foundation for your conservatory
A conservatory foundation has to do more than provide a level rectangle in the garden. Glazed frames, doors, dwarf walls and the floor need consistent support, with finished levels that meet the house correctly. Whether you are planning a small lean-to, an orangery or a modular replacement room, Craig can help you take the first step without needing a complete technical package upfront.
LEKA Xi: pads or structural screws
LEKA describes its prefabricated conservatory base and walls as suitable for support on concrete pads or structural ground screws. We can quote the agreed foundation work beneath the selected Xi layout, with support levels and interfaces confirmed by your installer.
Explore the details →Durabase: supports beneath a steel base
Durabase confirms compatibility with ground screws and concrete pads. Its structural base sits above those foundations, so the support positions, brackets and base supply need coordinating. The screws are a specialist foundation package, not something automatically supplied with the Durabase kit.
Explore the details →Ultraframe hup! Base: a planned connection
Ultraframe publishes both screw-supported and concrete-pad routes for hup! Base. The foundation package follows the base loads and agreed connectors. A conservatory carrying an Ultraframe roof does not, by itself, confirm that it has this particular base system.
Explore the details →Shire QuickBase: a distinct pile system
QuickBase combines helical screw piles with its own ground-beam system. We welcome foundation enquiries for projects considering it, but confirm the specialist package with Shire or the responsible designer. Ordinary ground screws or concrete pads must not be substituted into that system without approval.
Explore the details →Three easy steps
From first call to a finished foundation
Getting started is simple. We will guide you through the choices and explain any information needed before installation.
Talk through the options
We discuss the site and suitable foundations, identify any supplier information needed and provide a clear written quotation.
Install and hand over
Our team marks out and installs the agreed foundation, with the required checks before the next stage of your project.
Choose the foundation, not the complication
Foundation options for your conservatory
These are the methods worth assessing for this application. The structure, support plan and actual ground determine the right choice—not a one-size-fits-all specification.
Installed ground screws
Ground screws beneath a proprietary base
For an approved screw-supported conservatory base, we install supports to the agreed layout and levels. Screw specification, connections and verification follow the building loads and site assessment, not a standard shed-base pattern. This route avoids a concrete-curing stage for the screw foundation itself.
Worth considering for: Compatible modular bases with an accepted screw design
Ask about this option →
Concrete
Concrete pad foundations
Individual concrete pads can support suitable prefabricated base systems, including manufacturer-approved LEKA Xi, Durabase and hup! Base arrangements. Pad size, depth, ground bearing and setting-out come from the accepted project detail. Allow for excavation, concrete strength gain and any inspection requirements.
Worth considering for: Modular conservatory systems whose supplier specifies pads
Ask about this option →
Concrete
Traditional concrete foundations and bases
For a traditionally constructed conservatory or orangery, we can quote specified strip or trench-fill footings, a designed raft or slab-and-foundation package. The walls, floor and ground determine the solution. A paving patio or ordinary garden-shed slab is not a substitute for a conservatory foundation design.
Worth considering for: Traditional construction or a separately designed alternative
Ask about this option →Clear prices, agreed scope
A price for your project
Specialist foundations need a quotation matched to the structure, ground and installation scope. A generic garden-building price would not reliably represent this project. Call Craig with your idea and postcode to get started.
No VAT is added to the guide prices shown.
Get your exact written priceView the full base price guideThe structure
Its loads, footprint and accepted support arrangement.
The site
Ground conditions, levels, buried services and practical access.
The foundation package
Specified materials, installation and any agreed testing or supporting frame.
The written quotation
Clear inclusions, responsibilities and timing before work is booked.
Easy to start, free to ask
Tell us about your conservatory
You do not need drawings or a finished specification before getting in touch. Send what you have and Craig will explain the useful next step.
Helpful details, if available
- Postcode and approximate conservatory dimensions
- New conservatory, replacement room or orangery
- Preferred supplier or base system, if known
- Photos of the existing base and route into the garden
- Any information already supplied by your installer and preferred timing
Talk to Craig
Craig will listen to what you are planning and help establish the foundation information that matters.
Online quote requests are normally answered within 24 hours, excluding weekends.
Request your free quote
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
Conservatory & Modular Conservatory Foundations installation
Planned around its use
What matters for your conservatory
We provide the agreed foundation installation beneath the conservatory, coordinating with your chosen building supplier. Ground screws are worth considering early for compatible designs: they avoid waiting for foundation concrete to cure and can reduce excavation through an established garden. Concrete pads and designed traditional foundations remain part of our service where those better suit the building or ground.
The proprietary base and the foundations beneath it are separate parts of the job. LEKA Xi, Durabase and hup! Base each have their own support and connection requirements. Shire QuickBase uses a different pile-and-beam arrangement. We welcome enquiries involving all four, but confirm the accepted system, installation responsibilities and product requirements before promising a particular solution.
For a replacement conservatory, the starting point may be a slab, dwarf walls and footings that are already there. Keeping suitable existing work can avoid unnecessary demolition, but a sound-looking floor does not prove that the foundations can carry the proposed room. The responsible building designer or supplier needs to establish what can remain and what needs replacing.
JustBases is an independent foundation contractor, not a claimed approved installer or partner of these brands. Our quotation sets out the groundwork we will deliver. Manufacture and assembly of the proprietary floor, walls, glazing and roof are not automatically included, and manufacturer-specific piling must be agreed with the responsible system provider.
Discuss your project with Craig →LEKA Xi: pads or structural screws
LEKA describes its prefabricated conservatory base and walls as suitable for support on concrete pads or structural ground screws. We can quote the agreed foundation work beneath the selected Xi layout, with support levels and interfaces confirmed by your installer.
Durabase: supports beneath a steel base
Durabase confirms compatibility with ground screws and concrete pads. Its structural base sits above those foundations, so the support positions, brackets and base supply need coordinating. The screws are a specialist foundation package, not something automatically supplied with the Durabase kit.
Ultraframe hup! Base: a planned connection
Ultraframe publishes both screw-supported and concrete-pad routes for hup! Base. The foundation package follows the base loads and agreed connectors. A conservatory carrying an Ultraframe roof does not, by itself, confirm that it has this particular base system.
Shire QuickBase: a distinct pile system
QuickBase combines helical screw piles with its own ground-beam system. We welcome foundation enquiries for projects considering it, but confirm the specialist package with Shire or the responsible designer. Ordinary ground screws or concrete pads must not be substituted into that system without approval.
Match the room to the foundations
Glass walls, masonry, roof choice and wide doors affect the support arrangement. Agree the complete proposed conservatory rather than sizing foundations from floor area alone.
Finish at the right level
Set support heights using the floor build-up, house threshold, damp protection and any required underfloor ventilation. Garden levels and rainwater drainage also need to work with the finished perimeter.
Check access before delivery
Side passages, steps, overhead restrictions and occupied gardens influence the installation method. Photographs help us discuss practical access without assuming a digger or a large delivery can reach the rear of the house.
When the design and ground are suitable
Why consider ground screws?
Year-round flexibility
A screw-only foundation avoids pouring and curing concrete, reducing one source of weather-related delays. Unsafe access, flooding, frozen or unsuitable ground can still mean postponing installation.
Less digging and mess
Localised supports can reduce excavation and spoil compared with extensive concrete foundations. Clearance, pre-drilling, service trenches and machinery access may still disturb the site.
A lower-impact approach
Using less concrete and moving less spoil can reduce material use and transport. Retaining vegetation may benefit habitats, but trees and wildlife still need protection. Steel manufacture and the full project design matter to any carbon comparison.
Before installation
Dimensions, approvals and responsibilities
Start by telling us which conservatory you are considering and whether the garden is clear or an old room needs replacing. We can discuss the foundation options with your installer and identify who will provide design information, remove existing work, handle drainage and assemble the base. For proprietary piling such as QuickBase, the relevant specialist must confirm the installation route before we agree the scope.
Conservatories follow the relevant house-extension planning rules; some proposals qualify for permitted development and some do not. Building-regulations exemptions also have conditions and should not be assumed for an open-plan room or a changed roof and wall arrangement. Your designer, installer or local authority should confirm the requirements for the complete proposal. Choosing screws does not remove those checks.
Before work starts, agree support locations, finished heights and any inspection or testing required. Buried drains, existing house footings, shared boundaries and nearby trees can affect the plan. If site conditions differ from the design assumptions, the detail needs review rather than moving a support or changing its type informally.
JustBases quotes the agreed foundation and groundwork. Product installation, specialist connections, commissioning and third-party design remain outside our scope unless the written quotation expressly includes them.
Genuine customer feedback
A full 10-year JustBases guarantee
Our full written guarantee covers installation workmanship and the foundation materials we supply, subject to your quotation. Read what customers say about our foundation work below, with the original job types and sources shown.
"I couldn't recommend Craig highly enough! Communication prior to the job was outstanding even considering our ever changing goal posts. Craig and his team turned up exactly at the agreed time, were well presented, friendly and professional. The cleanliness, attention to detail and quality of the job was outstanding."
— Verified Customer
Checkatrade · BH16 · 2020-05-27
Work listed by the source: Log cabin foundation
"Good standard of workmanship. Friendly and efficient. Prompt response for estimate and fitted into our timescale. Will be using the firm in future and thoroughly recommend them."
— Verified Customer
Checkatrade · SP6 · 2019-09-16
Work listed by the source: Concrete base for new summerhouse
"Craig and his team were very professional throughout the job. They worked tirelessly and extremely hard. The job involved digging up a thick reinforced concrete base. Then creating a whole new base with precision engineering in preparation to accept a new building on top. The result was an excellent job all round."
— Verified Customer
Checkatrade · BH24 · 2021-11-30
Work listed by the source: Building foundations and landscaping
Our service area
Foundation installation across the South
For this application we cover Dorset, Hampshire, South Wiltshire. Tell Craig the postcode and we will confirm the suitable installation options and travel requirements.
Straight answers before you decide
Conservatory & Modular Conservatory Foundations FAQs
They can where the chosen base, ground and structural design allow it. The floor or base system distributes the building loads to the screw supports. Glazing and doors need the movement and support limits specified by the building supplier, so suitability is assessed for the complete assembly.
Still unsure? Send Craig a short enquiry and we will help with the next step.
Related applications
hup! & Ultraframe Building Foundations
Foundation installation for hup! extensions, garden homes, orangeries and conservatories, coordinated with your building installer.
Explore this application →Timber Frame Extensions & Buildings
Screw foundations for timber-frame extensions and standalone buildings, with traditional concrete alternatives where needed.
Explore this application →Log Cabin Foundations
Foundations coordinated with the cabin's bearer plan, weight and intended year-round use.
Explore this application →Tell us what you want to build
An outline of the project and your postcode are enough to start.