Outdoor Saunas
Premium outdoor garden saunas, handcrafted for comfort, relaxation and timeless style.
Explore SaunasLondon · Peterborough · Across the UK
Two divisions, one standard of quality: premium outdoor saunas from Mastermat Spa & Design, and complete home renovations from Mastermat Build & Renovation.
Premium outdoor garden saunas, handcrafted for comfort, relaxation and timeless style.
Explore SaunasExceptional home renovations, extensions, bathrooms, kitchens and complete property transformations.
Explore ServicesMasterMat Spa & Design
Explore our outdoor sauna collection, thoughtful installation support and beautifully crafted spaces for everyday wellbeing.
Before installation · Step 2
A properly prepared base helps your sauna sit level, remain stable and perform as intended. We can coordinate the groundworks and finish the surrounding space to complement your garden.
Every site is different. We start by reviewing the location, ground conditions, access and the sauna's requirements, then agree a practical preparation and finishing plan before work begins.
Check the proposed position, delivery route, working space, existing levels and any obstacles. Confirm the sauna footprint and access requirements before setting out.
Prepare the work area, remove unsuitable surface material where needed and excavate to the agreed depth. Protect nearby planting, boundaries and existing services.
Install and compact a suitable sub-base, establish accurate levels and consider surface-water run-off so water does not collect around the sauna or its base.
Construct the agreed foundation or support system, allow materials to cure or settle as required, then complete the surrounding surface, edges and landscaping.
The correct foundation depends on the sauna manufacturer's requirements, ground conditions, drainage and site layout. Final specifications and scope are confirmed following a site assessment. Any electrical work is arranged with appropriately qualified specialists.
Discuss your ground preparation →Mastermat Spa & Design
Five designs for the garden. Select a sauna to see its specifications, exterior and interior.
Compact & classic
Mastermat Build & Renovation Ltd
From a single room to a complete transformation — planned with care and finished to a standard you will notice every day.
Why Mastermat
Every project — a garden sauna or a full renovation — is handled by the same experienced team, with the same attention to workmanship and finish.
Gallery
Browse our sauna range, interiors and renovation services. Select any image to view it in full.
Reviews
Contact
Whether you’re looking for a beautiful garden sauna or planning a complete home renovation, we’re here to help. Get in touch today for a free, no-obligation quote.