Skip to main content
Indoor Sauna Installation — South Coast Sauna Co luxury bespoke saunas, Dorset & Hampshire
Indoor Saunas

Indoor Sauna
Installation

Precision-engineered indoor saunas for homes, ensuites, and wellness rooms — designed to fit your exact space and lifestyle.

Indoor Sauna UK

Wellness Within
Your Home

An indoor sauna transforms an existing room — a bathroom, ensuite, home gym, or basement — into a private wellness sanctuary. South Coast Sauna Co. specialises in precision-engineered indoor installations that feel entirely at home within the architecture of your property.

We manage every aspect of the project: structural assessment, ventilation design, electrical supply, timber selection, heater specification, and final installation. The result is a seamless, beautifully finished sauna that performs flawlessly for decades.

Book Free Consultation
Bespoke indoor sauna installation with alder timber lining and ambient lighting — South Coast Sauna Co
What's Included

Engineered for
Your Space

Custom Dimensions

Every indoor sauna is precision-engineered to fit your exact space — from compact 1-person ensuite retreats to full 6-person family installations in dedicated wellness rooms.

Ensuite Integration

We specialise in integrating saunas into existing bathroom and ensuite spaces, managing all plumbing, ventilation, and electrical requirements with minimal disruption.

Premium Timber Lining

Choose from our curated selection of interior timbers — clear alder, thermo spruce, Western Red Cedar, and thermowood — each selected for its thermal performance and aesthetic.

Integrated Ventilation

Correct ventilation is critical for indoor saunas. We design and install bespoke ventilation systems that maintain air quality, protect the building fabric, and ensure longevity.

Smart Heating Controls

All our indoor saunas can be specified with smart heating controls — schedule your sauna from your phone, monitor temperature remotely, and programme weekly routines.

Lighting & Sound

Bespoke LED lighting systems and discreetly integrated sound systems are available for all indoor installations, engineered specifically for the thermal environment.

Common Questions

Indoor Sauna FAQs

Can a sauna be installed in an existing bathroom or ensuite?

Yes — ensuite sauna installations are one of our most popular services. We assess your existing space, manage all structural, plumbing, and electrical requirements, and deliver a fully integrated sauna that feels like it was always part of the room.

What size does an indoor sauna need to be?

A 1-person sauna can be installed in a space as small as 1.2m x 1.2m. A comfortable 2-person sauna typically requires around 1.5m x 1.8m. We design to your exact available space and can maximise even the most compact rooms.

Do indoor saunas require special ventilation?

Yes. Proper ventilation is essential for indoor saunas — both for comfort and to protect the building fabric from moisture. We design and install bespoke ventilation systems as part of every indoor installation.

What electrical supply does an indoor sauna need?

Most residential indoor saunas require a dedicated 240V circuit. Larger saunas with higher-wattage heaters may require a 3-phase supply. We assess your existing electrical infrastructure and advise accordingly at the consultation stage.

Begin Your
Indoor Sauna Project

Free design consultation. Full CAD drawings and written quotation within 48 hours. No obligation.