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Steam Shower Sprinkler

How Much Does a Steam Room Cost?

Dreaming of your own Steam Room but worried it’ll cost more than a holiday in Ibiza?
Short answer: A Steam Bath can cost anywhere from £1,500 to £15,000+.
From budget builds to spa-like luxury, we break down every cost so you don’t get steamed by surprise. Keep reading to budget smart!

Steam Shower Sprinkler

Understanding the Average Steam Room Cost

What is the Typical Price Range for a Home Steam Room?

In the UK, a home steam room can cost between £3,500 and £15,000, depending on several factors.

This includes whether it’s prefabricated, custom-built, or added during a bathroom renovation.

Smaller portable steam showers might only cost £1,500, while a luxury tiled steam bath with extras can exceed £15,000.

Factors Influencing the Base Cost

Several elements affect the base cost:

  • Size – Larger steam rooms need more materials and stronger generators

  • TypePortable or prefab options are cheaper than custom builds

  • Location – Converting a bathroom is easier than building one outdoors

  • Materials – Tile, stone, glass, and waterproofing layers all vary in price

These decisions make a big difference to your total steam room budget.


Detailed Breakdown of Steam Room Installation Costs

Steam Generator Cost

Different kW Options and Their Price Ranges

The steam generator is a key component. Its power rating (kW) must match your room size.

Generator Size (kW) Room Size (m³) Estimated Cost (UK)
4–6 kW Small (1–3 m³) £500 – £900
7–9 kW Medium (4–7 m³) £900 – £1,500
10+ kW Large (8+ m³) £1,500 – £2,000+

Larger rooms need more powerful (and pricier) systems.


Enclosure and Materials Cost

Glass, Ceramic Tile, Wood, Waterproofing Materials

The materials you choose shape both the look and cost:

  • Glass doors/panels: £800 – £2,500 depending on design

  • Tiling (walls, floors, ceiling): £1,500 – £5,000

  • Waterproof membranes: Around £300 – £700

  • Wood (like cedar): More common in saunas than steam rooms

Using premium finishes like marble or stone increases cost significantly.


Labour Costs

Plumbers, Electricians, Tilers, General Contractors

Fitting a steam room involves a few trades:

  • Plumber: £300 – £800

  • Electrician: £400 – £1,000 depending on wiring needs

  • Tiler: £600 – £2,500 based on materials and coverage

  • Installer or contractor: £500 – £1,500 for full coordination

Costs vary by location and scope of the project.


Additional Features and Add-Ons

Steam Shower Side Shower

Aromatherapy Pumps, Sound Systems, Lighting, Seating, Rain Systems, Control Panels

Optional upgrades can enhance your steam room experience:

  • Aromatherapy pump: £100 – £400

  • LED lighting: £100 – £300

  • Bluetooth sound system: £200 – £500

  • Custom seating: £500 – £1,000

  • Rain shower head: £100 – £300

  • Digital control panel: £150 – £500

Pick what suits your budget and lifestyle.


Ongoing Costs and Maintenance

Running Costs

Electricity and Water Usage

Steam generators use electricity and a small amount of water per session.

Most UK homeowners spend £0.50 to £1.50 per use. If used regularly, your monthly cost may increase by £10–£30.

Water usage is minimal but should still be considered.


Regular Maintenance and Cleaning

Preventing Mould and Mildew, Annual Servicing

Steam rooms need proper care to stay clean and safe:

  • Wipe down surfaces after each session

  • Leave the door ajar to let moisture escape

  • Descale the generator every 6–12 months

  • Get a professional service once a year (around £100 – £200)

Good habits prevent mould, mildew, and costly repairs.


Potential Repair Costs

Even with upkeep, occasional repairs may be needed:

  • Generator replacement: £500 – £2,000

  • Tile or grout repairs: £100 – £500

  • Door or seal fixes: £100 – £300

It’s wise to set aside a small repair fund annually.


Steam Room vs. Sauna: A Cost Comparison

Initial Installation Cost Comparison

Type Installation Cost Range (UK)
Steam Room £3,500 – £15,000+
Traditional Sauna £2,500 – £10,000
Infrared Sauna £1,500 – £6,000
Steam Shower Unit £1,200 – £4,000

Steam rooms tend to cost more due to waterproofing and generator systems.


Operating and Maintenance Cost Comparison

  • Steam Room: Higher electricity usage and moisture-related upkeep

  • Sauna: Less moisture, lower running cost, simpler cleaning

  • Infrared Sauna: Most energy efficient and lowest maintenance

Your choice may depend on usage habits and maintenance preference.


Is a Home Steam Room Worth the Investment?

Benefits of Installing a Steam Room

Health Benefits, Relaxation, Stress Relief

Steam rooms offer more than just heat. They:

  • Open pores and support skin health

  • Help reduce stress and promote relaxation

  • May ease sore muscles and respiratory tension

  • Add long-term value and luxury to your home

Many see them as a wellness investment.


Considerations Before Buying or Building

DIY vs. Professional Installation, Space Requirements

 


Takeaways

  • Home steam rooms typically cost £3,500–£15,000+ in the UK

  • Size, materials, and extras all affect the final price

  • Ongoing costs include energy, maintenance, and occasional repairs

  • Steam rooms cost more than saunas, but offer unique spa benefits

  • Plan carefully and set a realistic budget for the best outcome

Stuart Goldfinch profile picture

Stuart Goldfinch

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