The smarter foundation system
Built From the Ground Down
Cleaner, faster foundations without the mess, delays, or digging.
Most domestic installs: £800–£2,500 inc. VAT · Instant online estimate
Ground Screw Foundations — Done Properly
Our main business is supply and installation. We bring everything needed to install your foundations correctly — you just build on top.
Ground Screw Supply & Installation
We supply ground screws in the right size for your project and install them using specialist machinery. Level, precise and ready to build on within hours — no concrete, no mess, no cure time.
Supply Only
Need screws only? We supply ground screws in four sizes to trade customers and competent self-installers. Same quality we use ourselves, delivered to your site.
Ground Screws in Four Sizes
Most garden rooms go in on our standard 1.25m — but the right spec depends on your ground conditions and what you're building. We'll always tell you what's correct for your project.
- Lighter garden structures
- Shallow topsoil
- Low-load applications
- Access-constrained sites
- Garden rooms & annexes
- All standard SE England soils
- Most residential projects
- Proven across 500+ installs
- Softer or wetter ground
- Sloped sites
- Heavier structures
- Where 1.25m isn't sufficient
- Challenging ground conditions
- Commercial projects
- Large or multi-storey structures
- Deep bearing layer required
Not sure which size you need? Tell us your project and location — we'll advise.
EnquireHow It Works
From initial enquiry to a ready-to-build foundation — quick, clear and hassle-free.
Tell Us Your Size
No detailed plans needed — just send your dimensions and we'll provide a screw layout and quote.
Get Your Price
Use our online calculator for an instant estimate, or we'll follow up with a fixed quote within 1 working day — no hidden extras.
We Come to You
Our team arrives on your agreed date with specialist installation equipment.
Ready to Build
Screws installed, level and square. You can start building your garden room the same day.
Why Ground Screws Beat Concrete for Garden Rooms
Faster, cleaner and more practical in almost every situation. Here's why the industry is moving away from concrete.
Screws go in, level up, done. Start building today — not after waiting 24–48 hours for concrete to set.
No skips, no digging, no spoil. The garden looks the same after we leave as before we arrived.
Clay, loam, sandy soil — ground screws perform reliably across all standard South East England ground types.
We install to precise levels so your garden room sits perfectly from day one. Accuracy at foundation stage is everything.
Trusted by Garden Room Professionals
"Ground Down have been the foundation solution of choice for our garden rooms. Reliable, precise and always on time. The installations are consistently excellent."
"Professional service from start to finish. Ground Down understand exactly what's needed for garden room foundations — highly recommended to any installers in the South East."
"Quality screws, punctual team and the foundations were perfect every time. We've used Ground Down on multiple projects and they've never let us down."
"Ground Down were easy to deal with from start to finish. Communication was clear, the installation was fast and hassle-free, and the price was fair. The ground screws were in and ready without any of the mess of a concrete base."
Six Years of Experience. The Same Approach Every Time.
Ground Down grew out of practical experience in the garden room industry. It started with ground screw installations for contacts in the trade — word spread, and before long we were working with multiple garden room companies across South East England.
Over six years and 500+ installations, we have seen what works. Our focus is straightforward: turn up on time, use the right spec, install correctly, and leave the site clean so you can start building the same day.
No concrete, no mess, no delays. Just a foundation that is ready to build on.
Get an Instant Price Estimate
Use our price calculator to get an instant estimate — or call us if you'd prefer to talk it through.