Sauna services
Professional sauna installation in London and across the UK
From a private indoor sauna to a garden cabin or commercial facility, we plan, install and commission sauna systems around your property. Speak to VertexAir about a tailored installation quotation.

Made for your space
Our saunas. Your size.
- Traditional Saunas
- Infrared Saunas
- Commercial Saunas
- Outdoor Saunas
Custom-sized saunas
We offer custom sauna sizes to suit your room, garden building or commercial space. Share your dimensions and intended use so we can plan the layout, seating and equipment around your project.
Harvia heaters · dual-heater options
We use Harvia sauna heaters and can specify two heaters where suitable for the design. Heater sizing, controls, clearances, ventilation and electrical capacity are checked together against the selected equipment’s requirements. Infrared cabins use a different heating system.
01 / Start here
A sauna planned around your space
A successful sauna installation starts with the room, not just the heater. The available space, construction, intended number of users and route for power and ventilation all influence the specification. We help homeowners, businesses and trade partners understand these requirements before equipment is ordered or building work begins.
Vertex Climate provides home and indoor traditional sauna installation, outdoor and garden sauna installation, and commercial sauna installation throughout the UK. We assess the proposed location, discuss how you want to use the sauna, and agree the equipment and work included in your quotation. Your project may involve a new room, a supplied cabin or coordination with a builder preparing the space.
Installation includes the agreed heater, controls and ventilation work, followed by commissioning and handover. Our fully qualified electricians can carry out the electrical work as part of a complete installation, from small projects to larger schemes. Timber construction, site preparation and any specialist building work are clearly allocated in the project scope. We explain what is included and what needs checking before a date is agreed, giving you a practical basis for comparing quotations.

02 / Services
Choose your sauna installation
We install the following confirmed sauna types. Traditional saunas use a heater and stones to warm the cabin; the exact equipment is selected for the room and intended use.
01Home and indoor traditional sauna installation
A traditional sauna in a suitable spare room, wellness room or refurbishment, specified around the space and your household.
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02Outdoor and garden sauna installation
Garden cabins and outdoor buildings, coordinated with the base, delivery route, weather protection and electrical supply.
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03Commercial sauna installation
New and replacement facilities for gyms, hotels, spas and wellness operators, planned around usage and maintenance access.
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Technical planning, clear responsibilities
Our work brings together heater selection, electrical considerations, ventilation and installation coordination. You receive a project-specific quotation rather than a price based only on the size of a cabin.
- Discuss room dimensions, usage and equipment before committing to a purchase.
- Identify electrical capacity, cable routes and ventilation requirements during planning.
- Agree access, site preparation and responsibilities with you and any other trades.
- Commission the installation and explain controls, operation and routine care at handover.
04 / Process
From initial conversation to handover
The scope and timescale are agreed around your site rather than a fixed installation promise.
- 1.
Initial consultation — discuss the location, preferred sauna and intended use.
- 2.
Property or site assessment — check dimensions, access, electrical provision and ventilation.
- 3.
Design and installation planning — confirm equipment, responsibilities and the quotation.
- 4.
Installation and commissioning — complete agreed work and check the system against manufacturer requirements.
- 5.
Handover and guidance — explain the controls, routine care and how to request support.

Indoor or outdoor: what changes?
An indoor sauna needs a suitable room with a workable ventilation route, space around the heater and a construction approach appropriate to heat and moisture. Circulation space, door movement and neighbouring rooms matter just as much as the footprint shown in a brochure.
A garden sauna also needs a suitable base, weather-resistant construction, a safe access route and a planned electrical supply to the building. Delivery access and any planning or building-control requirements should be resolved before ordering. Outdoor upkeep includes the external structure as well as the heater and internal finishes.

What affects sauna installation cost in the UK?
The sauna type, room dimensions, timber and finishes, heater and controls, electrical work, ventilation and site preparation all affect the price. A straightforward prepared room and a new garden cabin with a distant electrical connection are not comparable scopes.
We do not publish a fixed price that may omit essential work. Share photographs, measurements, your postcode and the intended use so we can discuss the right assessment and prepare a tailored quotation. Ask which equipment, labour, commissioning, VAT and third-party work are included.

UK-wide sauna installation
We accept sauna installation enquiries across the United Kingdom, including London and surrounding areas. Share your postcode at the start so we can confirm site access, assessment arrangements, travel requirements and scheduling for your project.
Coverage does not mean every project can be installed immediately. Equipment availability, site readiness and the agreed scope determine the programme. We do not claim local offices in every area we serve.
Sauna installation questions
How much does sauna installation cost in the UK?
It depends on the sauna, equipment, size and site work. Electrical alterations, ventilation, foundations and access can materially change the total. Request an itemised quotation rather than relying on a cabin-only price.
Can a sauna be installed inside a house?
Yes, a home sauna is possible where the room, construction, ventilation and electrical provision are suitable. We assess the proposed space before confirming a specification.
Can I install a sauna in my garden?
We install garden saunas. The project needs suitable ground preparation, access, weather protection and services. Check the applicable planning and building-control position before committing to construction.
How long does sauna installation take?
There is no single timescale. A prepared cabin and a bespoke room with new services require different work. We discuss equipment lead times, site preparation and installation dates after reviewing the scope.
Does a sauna require dedicated electrical work?
The heater and control manufacturer's specification determines the supply requirements. Our fully qualified electricians assess capacity, protective measures, isolation and testing, and can include the electrical work in your complete installation. Do not assume an existing socket is suitable.
What ventilation does a sauna need?
Air supply and extraction must suit the heater, room and ventilation method. Vent positions can affect temperature sensors. Use the exact equipment instructions and a site-specific design rather than a universal vent layout.
Do garden saunas require planning permission?
It depends on the property and location. In England some sauna outbuildings may fall under permitted development subject to all applicable limits and exclusions. Rules differ across the UK. Confirm the position with the relevant local authority; planning permission and building regulations are separate questions.
What is the difference between infrared and traditional saunas?
Traditional saunas use a heater, often with stones, to warm the cabin; infrared cabins use radiant panels. Layout and equipment requirements differ. We currently advertise traditional home, garden and commercial installations, not an infrared installation service.
Can a sauna be installed in a commercial property?
Yes. Commercial projects need planning around expected usage, access, cleaning, controls and operational responsibilities. We work with the operator and project team to define the installation scope.
How can I request an installation quote?
Choose Sauna in our quote form and include your postcode, room or cabin dimensions, photographs and timeframe. You can also call 020 8087 0906 or email info@vertexclimate.co.uk.
Tell us about your sauna project.
Share your postcode, dimensions and photographs for a tailored quotation.