Fast, Clean & Eco-Friendly Foundations for Your Garden Structures
Professional ground screw bases for sheds, garden rooms, decking and summerhouses across Cornwall.
Why Ground Screws Are the Smarter Choice…
Traditional concrete bases can be slow, messy and damaging to your garden. Our ground screw system offers a modern, sustainable alternative.
Benefit 1 – Can be installed in a single day – weather permitting. Your structure can usually be placed the same day.
Benefit 2 – Eco-Friendly No digging, no concrete, no heavy machinery. Fully removable and recyclable with minimal ground disturbance.
Benefit 3 – Clean & Tidy We leave your garden looking almost untouched. Ideal for established lawns and borders.
Benefit 4 – Versatile Perfect for flat or sloping ground, clay, sand or rocky soil. Excellent load-bearing performance (up to 750kg+ per screw).
Benefit 5 – Durable Galvanised steel screws and C24 treated timber ensure a strong, maintenance-free foundation for decades.
Get in Touch for a free quote…
Ready to get started with a strong, eco-friendly foundation?
Whether you’re planning a new shed, garden room, decking project, or simply need a quote for re-felting your existing building, we’re here to help.
At Base and Build Groundworks we offer clear, honest advice, no-obligation quotations, and free site visits across Cornwall.
📞 Call or text Oliver on 07706 938211 ✉️ Email us at base.buildgardens@gmail.com
We usually reply the same day and can often arrange a convenient time to visit your garden and discuss the best solution for your needs.
Simple, reliable, and hassle-free — that’s the Base and Build promise.
We look forward to hearing from you!
Specialist Services…
Fast, clean and eco-friendly foundations for your garden structures
Tired of the mess, delay and environmental impact of traditional concrete bases? Our ground screw foundation system offers a modern, smarter alternative that’s perfect for Cornish gardens.
We install durable galvanised steel ground screws combined with a precision laser-levelled, pressure-treated timber subframe — creating a strong, stable and well-ventilated platform for sheds, garden rooms, summerhouses, decking and more.
What’s included:
Professional site assessment and levelling
Installation of 850mm or 1100mm heavy-duty galvanised ground screws (chosen to suit your soil and load requirements)
C24 structural treated timber frame with joists and galvanised fixings
Weed-suppressing membrane
Full clean-up, leaving your garden almost untouched
Most bases are completed in a single day, weather permitting, with no heavy excavation or curing time required. Your new structure can usually be installed the same day or very shortly after.
Give your existing shed or garden building a fresh lease of life
Over time, felt roofs can crack, tear, or lift, allowing water to seep in and cause damage to the timber and contents inside. Our professional re-felting service provides a fast, cost-effective way to restore weatherproof protection to your shed or garden room.
What’s included:
Full removal of old, damaged felt
Thorough cleaning and preparation of the roof boards
Supply and installation of high-quality, heavy-duty roofing felt
Secure fixing with galvanised clout nails and edge trimming
Optional upgrade to breathable felt or EPDM rubber roof membrane (fully waterproof and longer lasting)
We work neatly and efficiently, causing minimal disruption to your garden. Most standard shed roofs can be completed in just a few hours.
Beautiful, stable decking that lasts — without the mess of concrete
Create the perfect outdoor living space with our professionally installed decking, built on a strong, eco-friendly ground screw foundation.
Instead of digging and pouring concrete, we use galvanised steel ground screws combined with a precision laser-levelled, pressure-treated timber subframe. This gives you a solid, well-ventilated deck that stays level for years, even on sloping or uneven Cornish ground.
What’s included:
Site assessment and professional levelling
Heavy-duty galvanised ground screws (850mm or 1100mm as required)
C24 structural treated timber joists and subframe with galvanised fixings
High-quality decking boards (smooth or grooved, pressure-treated)
Weed-suppressing membrane beneath the deck
Full clean-up, leaving your garden tidy
Our ground screw system means the job is usually completed in just one or two days with minimal disruption to your garden. No heavy machinery, no wet concrete, and no long curing times — you can enjoy your new deck much sooner.
Professional assembly of any garden building you buy online
Bought a new shed, summerhouse, log cabin or garden room online but don’t fancy tackling the assembly yourself? Our expert Garden Building Assembly Service takes the stress away. You choose and purchase the building from any supplier. We then handle the expert assembly with care, precision and the right techniques to ensure it stays straight, secure and weatherproof for years to come.
What’s included:
Full professional assembly of your garden building (any brand or style)
Secure fixing to our C24 treated timber sub-frame on ground screws (or to a sound existing base)
Precision levelling and adjustment for perfect stability
Roof felt installation or upgrade (heavy-duty felt, breathable membrane or EPDM rubber)
Optional extras such as insulation preparation, electrics routing or decking surrounds
Full clean-up, leaving your garden tidy and protected throughout
Most standard sheds and summerhouses (up to 10x8 ft) can be fully assembled in just one day, weather permitting. Larger log cabins or garden rooms are quoted individually.
No heavy machinery, no mess, and no waiting weeks for your new building to be assembled — just a beautifully finished building ready for you to enjoy.
Book a survey or get your no-obligation quote today.