Division 01 — Spa & Design
Outdoor Saunas
Premium outdoor garden saunas, handcrafted for comfort, relaxation and timeless style.
Explore SaunasLondon · Peterborough · Across the UK
Craftsmanship for your garden and your home.
Two divisions, one standard of quality: premium outdoor saunas from MasterMat Spa & Design, and complete home renovations from Mastermat Build & Renovation.
Division 02 — Build & Renovation
Home Renovations
Exceptional home renovations, extensions, bathrooms, kitchens and complete property transformations.
Explore ServicesMasterMat Spa & Design
Bring the wellness retreat home.
Explore our outdoor sauna collection, thoughtful installation support and beautifully crafted spaces for everyday wellbeing.
MasterMat Spa & Design
Our Outdoor Saunas
Choose from five standard models: Barrel Sauna, Cozy Igloo, Oval Sauna, Deluxe Medium or Everest Mini. Select one to view its specifications, standard design, exterior and interior. Custom sizes, finishes and layouts are shown separately as inspiration.
Compact & classic
Barrel Sauna
- Capacity
- 4–6 people
- Floor area
- 5.4 m²
- Size
- 2.7 m
Beyond the standard range
Make your sauna your own.
Our five standard models are the starting point. Depending on the design and supplier availability, we can explore larger formats, alternative glazing, mirrored finishes and additional spaces.
Before installation · Step 2
Ground preparation and base
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.
1. Site assessment & access
Check the proposed position, delivery route, working space, existing levels and any obstacles. Confirm the sauna footprint and access requirements before setting out.
2. Clear, set out & excavate
Prepare the work area, remove unsuitable surface material where needed and excavate to the agreed depth. Protect nearby planting, boundaries and existing services.
3. Sub-base, levels & drainage
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.
4. Foundation & finishing
Construct the agreed foundation or support system, allow materials to cure or settle as required, then complete the surrounding surface, edges and landscaping.
Concrete Slab
A strong, stable and level foundation. The slab specification and reinforcement, where required, are selected to suit the site and sauna load.
Timber Decking
A warm, natural-looking finish that creates an inviting platform and usable space around the sauna. Timber support and ventilation are planned for outdoor conditions.
Composite Decking
A modern, durable and low-maintenance option, available in a range of colours and finishes to complement the sauna and garden.
Outdoor Tiles / Paving Slabs
An attractive, practical finish with clean lines and a choice of formats and textures. The laying base and falls are planned for outdoor use and drainage.
Decorative Gravel / Decorative Stone
Add texture and contrast with decorative aggregates, stone borders and stepping pads. Suitable edging and ground preparation help keep the finish neat.
Bespoke Landscaping
Custom-designed surroundings tailored to your space, from paths and planting to retaining details, lighting and integrated seating.
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 Build & Renovation Ltd
Home Renovation Services
From garden rooms and summer houses to extensions, loft conversions and full home refurbishments, our team brings the trades together with care and attention to detail.
Why Mastermat
Built on quality, trusted for detail.
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
Gallery & Design Inspiration
Explore the five standard sauna models, examples of custom sauna variations, interior views and building work. The Everest gallery includes a bespoke example with panoramic glazing, a dark exterior finish and a warm timber interior. Exact configurations are subject to confirmation.
Your project, made simple
From first idea to your sauna space.
A clear process helps you understand the options, the site requirements and the next steps before placing an order.
Choose a design
Explore the five standard models or tell us about a custom design you have in mind.
Plan the location
Discuss dimensions, access, ground conditions and the space around your proposed sauna.
Request a quotation
We will discuss the selected model, available options and the details needed to prepare a quotation.
Confirm the details
Before proceeding, confirm the specification, supplier availability, delivery arrangements and any agreed site work.
Helpful information
Frequently asked questions.
A few useful points to consider when planning an outdoor sauna. Exact specifications and arrangements are confirmed for each model and project.
Are all the photographs separate standard sauna models?
No. The standard collection contains five models: Barrel Sauna, Cozy Igloo, Oval Sauna, Deluxe Medium and Everest Mini. Other photographs may show custom variations or design inspiration.
Can I request a different size or finish?
Custom sizes, glazing, mirrored finishes, changing rooms, porches and layout variations may be possible depending on the selected model and supplier availability. Ask us to confirm the options for your preferred design.
Do I need to prepare the ground before delivery?
The required base depends on the sauna model, ground conditions, drainage and supplier instructions. We recommend discussing the proposed location and access before arranging the base.
Can MasterMat help with the area around the sauna?
We can discuss ground preparation and surrounding finishes such as decking, paving, gravel and bespoke landscaping. The scope of work will be agreed for your individual project.
How do I find out the price and delivery details?
Send an enquiry with your preferred model and postcode. We can then discuss the confirmed specification, supplier availability, delivery arrangements and any additional work before providing a quotation.
Are the photographs examples of actual MasterMat installations?
Some images may be supplier product photography or design visualisations. We will identify genuine completed MasterMat projects separately and will not present illustrative images as completed customer installations.
Reviews
What Our Clients Say
Contact
Let’s Talk About Your Project
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.