Zoki UK

Please click on to the headings below for more information –

Sauna Panel Colouring
This picture shows the sauna panels quite a light colour when new, and the shade they go over a period of time.

Happy Customers

“Hello, It’s been nearly a year since you installed our sauna and I just wanted to say thank you for the fantastic quality product.
The workmanship is solid, and the fitting was professional. We feel like the sauna has been built to last a very long time.
A hidden oasis in our garden!”
Dan Freeland, East Sussex
(Email on file)

“To all the team,
Just want to say thank you for an outstanding service from start to finish.
The chaps delivered/installed the sauna today, most impressed with the professional attitude, a credit to your company. That goes for the office team too.
When I first embarked on looking into the purchase of a sauna, there were some very obvious pit falls which made me very nervous to take the plunge.
From my initial enquiry to final sign off, I have been kept informed and therefore felt confident about purchasing experience throughout the process.
For those reading in, I would point out that have not been incentivised to write this testimonial. I am striving to get the same, unprompted feedback from my customers which I in turn can advertise on my business website. Not something that is easily achieved !
I would not hesitate to recommend Zoki. Thank you again.”
John Crowder, Cornwall
(Email on file)

“Just wanted to let you know how pleased we are with our sauna! It looks great and fits in perfectly where the greenhouse once was!
The lads, Justin and Sam were a pleasure. Both worked skilfully and with care, they were friendly and polite, a credit to your company.
We haven’t used the sauna yet but Gerry intends to try it out this afternoon after his run! Really looking forward to it.
We will certainly let other know what a super quality product you have and first class service we have received from you and the team at Zoki Saunas.”
Mandy and Gerry Dance, Shropshire
(Email on file)

“Our sauna was delivered, built and commissioned last Thursday, by Justin and Kasper, who did a very professional job and were considerate and polite, we would recommend your sauna service to anyone looking for an outdoor sauna.
We have used the sauna on many occasions since it was installed and we have to say that the quality of the sauna and the workmanship is beyond our expectations – Thank you.”
Paul & Lynn Carter, Herts
(Email on file)

“I thought I would write and thank for for my great sauna. The lads put it up and the attention to details was amazing. I’ve used it every day since and looking forward to using it again tonight.
You service from start to finish has really impressed me. Once again, thanks for making the design, purchase and installation of the sauna a joy. A big thank you to all your team.”
Andy Potter, London
(Email on file)

“Dear All at Zoki, We had our outdoor sauna fitted yesterday. I really must say it is very impressive and far out reaches our highest expectations. It was installed very quickly and is solid and gorgeous. We tried it out almost immediately and ‘wow’ it was the best one I have ever been in. I would like to thank you all for your professional, friendly service. I really can’t praise you all highly enough – Thanks.”
Gill Mosedale, Wakefield
(by email)

“Dear Alex, Five years ago we purchased an external sauna from yourselves to our own specifications and design. I just thought I would drop you a line to say how much we have enjoyed using the sauna, and how successful its been.”
Mr Andrew Bawn, Ivybridge, Devon

“Dear all at Zoki, just a line to say how pleased I am with the outdoor sauna you installed. It is difficult to find a company who looks after its customers needs. Being a wary type of person my mind was put at rest by Zoki. The product and the way you answered all my questions and queries – Thanks again from myself and Colin.”
Tracey Maney, Hertfordshire

“Excellent product and excellent service.”
Mr Mumby, Devon
(Installation checklist)
Mr Mumby’s outdoor sauna is shown at the bottom of our page.

“Here are some pictures of the outdoor sauna you made for me. I tried the sauna out with my Finnish partner, Riitta, who found it (even with the stove at half power, as instructed for the running in period) very good indeed. Certainly to me it felt like being in Finland!! All in all we are very satisfied. Many thanks for a great product. Kind Regards, Chris”
Dr Christopher Mark Liauw, Brighton
(Email on file)

“To all at Zoki, many thanks indeed for your brilliant service. Your guys installed in a few hours, with no fuss, no bother, they just got on with it in a thoroughly professional manner. We are thrilled with the result and thank the whole team for such an excellent product and service.”
Mike Turrell, Tamworth
(Email on file)

Email dated Thurs 5th May –
“The lads arrived at 11.45am which was what we figured, as they started carrying the materials in, it started to rain… typical Welsh weather, it’s been hot and dry for weeks until today!
Unfortunately I’m confined to bed today so I won’t see them or my sauna until tonight or tomorrow, very frustrating.
So I will email you as soon as I have seen it.
Kind Regards
Email dated Thurs 5th May –
“Hi Tanya and all at Zoki
Firstly I would like to say thank you to your work team, they are a credit to your company, hard working and very pleasant.
They did a wonderful job and cleared up everything after them. Please pass on our compliments and thanks.
The sauna itself far exceeded our expectations, the quality of materials and workmanship is second to none and would recommend that anyone wanting a sauna should look no further than Zoki. I feel I have my own little spa, it looks and feels so professional. Please feel free to use our comments on your website or wherever you wish. Many thanks again.
Kind Regards
Chris and Gary Davies “
Christine Davies, Carmarthenshire
(Email on file)

“Dear Tasha,
I would just like to say a huge thank you for the efforts from you and your team in fitting my sauna which was installed on Tuesday.
The manner in which your team installed the sauna was very professional and the craftsmanship for the finish was excellent. I would not hesitate to recommend you and your team to anyone who asks me where I got the sauna from.
Again, many thanks for the great service and sauna.
Wayne Barclay, Milton Keynes
(Email on file)

“Hi Alex,
The sauna went in and is wonderful. The guys arrived a little early which was great and they got straight to work. They were neat, fast, polite and certainly knew their stuff.
I was happily surprised how well built the sauna is – only having seen photos online, it’s hard to tell the actual build quality.
The walls are thick and solid, the doors close with a satisfying ‘thunk’ and the windows are really well double glazed!
All in all a happy customer.
I’ve had two saunas in it already and it is really great. I may have to have a sauna party! And I will take a photo to send you of how pretty it is.
Thank you again for a lovely sauna and a great job.
Katrina Taylor, London
(Email on file)

“Excellent job – Thanks!”
Phone call the same day off Andrew –
“The guys have just been and fitted the sauna, it looks great. They have done a brill job, big thanks to you at Zoki. I already have it on.”
Andrew Davies, Lancashire
(Installation sheet)

“Thank you very much for the excellent service and the excellent masterpiece you created in my garden. I would like to say what a fantastic couple of fitters you sent to set it up.Once again thank you for the fantastic service you will most definately be recommended.
Kind regards
Sharon and David.”
Sharon and David Theobald, Maidenhead
(Email on file)

A surprise Birthday present for her husband…
“I just wanted to say a Big Thank You to everyone at Zoki Saunas.We arrived home yesterday and my Husband is absolutely delighted with his outdoor sauna.He thinks it is better than the one he uses at the gym and was very impressed with how long the heat was maintained after he had switched it off. For my part the whole experience has been excellent with great initial advice from Alex and great communication from yourself and excellent installation from the guys on thursday.I am very pleased I found your Website.
Kind regards
Sue Maher”
Susan Maher, Liverpool
(Email on file)

“The sauna was erected today as planned. Thank you. I think your installers were pleased with the preperation work done in advance to their visit.The two guys were efficient and tidy, they gave me instructions on the use of the sauna.I used it this evening – Wonderful”
Robert Horner, Berkshire
(Email on file)

“Hi there, I recently decided to refurbish my Outdoor Sauna I bought from Zoki and I thought it would be good to share this with you guys. It looks far better than I expected. The actual model is from around 2004, you would never be able to tell looking at it now. It just goes to show that your saunas are extremely high quality and built to last. 1st class products.”
Alan Graham
(Email on file)

“Dear Justin,
I received my installation of my sauna on the 11th Jan 2019. Your installers Jason and Martin were very punctual, the unit was to be installed in a loft space on the 2nd floor. I watched as those guys trailed up and down those stairs without even pausing for breath taking the materials… and it wasn’t easy.
They were efficient… proactive and yes constructive… and worked together to produce my beautiful sauna… my sneak previews did not do any justice to the end result… I was truly pleased… they even cleaned up after themselves.
I would recommend ZOKI to any one or any businesses thinking of installing a sauna..the workmanship is 5 star plus also the Zoki staff are helpful and knowledgeable… kind regards to Justin and Alex.”
Beverley Morgan, West Midlands
(Email on file)

“Hi Tasha,
It all went brilliantly. Your guys turned up exactly at 11.00 as predicted and two and a half hours later we had a working sauna. They were so nice, efficient and professional and it looks lovely. We had the first one last night and it was super.
Thank you so much, Jan”
Jan Thomas, Oxon
(Email on file)

“I can’t thank you enough for our sauna. Your lads worked incredibly hard in freezing conditions to install my Outdoor sauna in a very tight space. We love it!”
Jay Stocks, Sheffield
(Email on file)

“Dear Tanya,
I hope you are doing great. Thank you for all your help with our Sauna. The installation went all well yesterday and the sauna looks amazing! I am working in an industry that depends on reviews,I wanted to check with you if you would like to post my review below.

Well finished Sauna, amazing customer Service and quick installation.
I bought our first sauna for our new house and decided to go for an outdoor sauna.
I enquired for the brochure which was sent to me with no delay.
I ordered the sauna over the phone and all details were taken with a very personal approach.
The entire process was very pleasant and I was able to make changes to the original design at the earlier stages of the order.
It was made clear to me what would be required on installation date (Sauna base and electrical installation), yesterday the installation took place.
All parts were pre-assembled and fitted perfectly.
The installation team of two people were super quick and courteous.
They showed the highest respect, working in our garden and house and even cleaned up after themselves.
The final result is just outstanding, wonderful quality finish and it exceeded my expectations.
Highly recommended!!!
Kind regards,
Stefan Engelhardt, Romford
(Email on file)

Outdoor Saunas

An outdoor sauna from Zoki is one of the best built outdoor saunas on the market, designed to last for years, from the 80mm secret nailed walls to the twin roof design. Your outdoor sauna would be installed by our own installers so you know we will take care of your order from start to finish.

Please contact us on 0121 766 7888 for an outdoor sauna quotation or if you have any questions.

Our opening times are Monday to Thursday 9am – 5pm and Friday 9am – 4pm. We are closed on Public Holidays.

View our Points to look for before buying an Outdoor Sauna, and read about the disadvantages of Barrel Saunas

Peaked Roof Outdoor Sauna
Peaked Roof Outdoor Sauna
Sloping Roof Outdoor Sauna
Sloping Roof Outdoor Sauna

We use a peaked roof or flat sloping roof with a 300mm overhang at the front.

We can convert any of our sauna range to an outdoor sauna or we can custom build any size or shape you require, we can also add on a changing room or extend the roof to give you a covered walkway.

All our outdoor saunas have two roofs, an internal one and an external roof the internal sauna roof has the same high density rock wool filling. Then in the cavity between the sauna roof and the external roof we fill this with rockwool. This is to keep the heat in and running costs down.

So with our wall thickness of 80mm and our twin roof design which is filled with rockwool a Finnolme outdoor sauna is the most economical outdoor sauna to run.

The time schedule to install an outdoor sauna is as follows – you choose a size of sauna or give us your size for a custom built Sauna. We then give you a price including installation.

If you decide to order a sauna, which you can do so over the telephone, you will be given our delivery time scale please note this may vary at different times of the year.

We will then send you a confirmation with a drawing plus details of how to prepare the site prior to having your sauna fitted.

We then ring you 16-18 days prior to your delivery date – if you are not quite ready we can move you into a new date which is suitable to yourself.

Please ring our office on 0121 766 7888 to discuss your requirements or answer any questions you may have. We are open Monday to Thursday 9am – 5pm and Friday 9am – 4pm.

Outdoor Sauna Changing Room
A changing room can be added to an outdoor sauna if required.
Please note these will have our indoor sauna prices.
Please choose a size/model and make contact and we will give you a quotation for the outdoor version.
New Outdoor Sauna

More examples of custom built outdoor saunas the saunas shown look quite light in colour but the wood will darken off into a pleasant colour after a few weeks exposure to the elements.

“Had an outside Sauna installed. It was better quality than I thought it was going to be. The whole process was seamless.
Great customer service and an install that put my DIY woodwork to shame.
I have had 2 saunas now and it performs better than the one in my gym.
Really pleased. Oh, and it looks great.”

Thanks to all, Julian Yardley – Wirral (Email on file)

Outdoor Sauna Julian Yardley
Outdoor Sauna Matthew Frost

“I would like to thank your company for the sauna you built and installed for me at the end of June. I was very impressed with the whole order and installation process, and the build quality is excellent.
We have been enjoying it most nights since then. I have reviewed online, and I have enclosed a couple of photos that you are welcome to use on your website.”

Many Thanks, Matthew Frost

Sauna overlooking the beach in Beer Devon

Words cannot express my joy!

Hi Tanya, Justine, Dan, Tasha, and the rest of the team,

Thank you so much for this piece of heaven in the garden.

As the title of this email says words cannot properly express my joy. Everyone I’ve sent photos to around Scandinavia and the Nordic countries is very impressed (they were a bit dubious about it when I told them this was going to happen). Last night we tried it (at the temperature required) for the first time and then had Finnish food after. It was incredible. The löyly produced was exceptional. This is always a mark of good wood and products; you can see it by looking at it but that’s always the test.

I’ve had many saunas in my life and always wanted my own here when I grew up so I’m so happy to have it…I was like a child yesterday with excitement!

My Father is visiting from Finland in two weeks (first time since the pandemic) and he is very excited about it too. I’ll include some of my words here and his in my Google review and I’ll write that in a little while after having some time to use it.

The customer service you all have is next to none by the way and the service on delivery is perfect as well. You’ve aced your business model. Very happy it’s booming as that’s a testament to you as well.

I’m very interested how it first started for you, why saunas? How was it discovered?

I wish you a very good week and thanks again I’ll be in touch I’m sure over time and I’ll let you know when the review is in.

Thanks again, from a very very Happy Hans!

I keep looking at it and my mind is boggling. It’s so majestic!

Hans S, Surrey
(Email on file)

Looking out of a Zoki Sauna on "Spitbank Fort", a luxury retreat in the Solent
Looking out of a Zoki Sauna on "Spitbank Fort", a luxury retreat in the Solent
Mr Bale of Wales view looking out of his Outdoor Sauna
Mr Bale of Wales view looking out of his Outdoor Sauna
Outdoor Sauna Sharon and David Theobald

The picture shows Sharon and David’s outdoor sauna after he applied a colour coating.

“All at Zoki – Thanks for the excellent service I have passed on your great service to others hope you get their business. Regards”

Sharon and David Theobald

From: John Mutch (Email on file)

Subject: Our Sauna…….

“I hadn’t intended to write to you until some period of use had gone by – and I don’t normally write to suppliers anyway.
However. I am writing because of the sheer excellence of your product, and all aspects of our dealings with your Company. It is very rare for a customer to experience what could be called a “sweet spot” when the combination of materials, people and, yes, passion delivers something of the highest quality. On our experience, I would commend your Company to anyone. 
There are so many things about how you do things, and how your quality and discipline is evidenced, that an essay could be written to do you justice, and give you a sense of reward.
Thank you
John (as well as my wife Penny, who is still enthusing….!)

PS. I know you have taken your own photo, but here is ours…”

Outdoor Sauna Photo by John Mutch
Outdoor Sauna Photo by Peter Murphy

“We are delighted with every aspect of our sauna, from ordering, swift fitting to daily use. Don’t know why we didn’t get one years ago!
We’ve now painted the exterior to disappear into the garden. (We thought about rolling in the snow but never quite made it!)
Tried to leave a review on your site without success.
Many thanks for your service, we are singing your praises to our friends.
Rosemary and Peter Murphy.”

Peter Murphy
(Email on file)

“Hi there, I recently decided to refurbish my Outdoor Sauna I bought from Zoki, and I thought it would be good to share this with you guys. It looks far better than I expected.

The actual model is from around 2004, you would never be able to tell looking at it now.

It just goes to show that your saunas are extremely high quality and built to last. 1st class products.”

Alan Graham
(Email on file)

Traditional Outdoor Sauna 1

What do we think about Outdoor Barrel Saunas?

Where do we start? We think Barrel Saunas look very nice as a garden feature. But in our opinion as sauna manufacturers they do not offer a true sauna experience and there are a lot of downsides to them.

Heat Loss

To combat heat loss through the roof of our saunas we have up to 250mm of rockwool plus 38mm of wood section plus a durable waterproof mineral felt to finish off.

Please see below a cross section of our Outdoor Sauna Roof showing the build quality.

Cross section of our Outdoor Sauna Roof

A Outdoor Barrel Sauna has a roof section of between 35mm to 45mm. The heat loss as you can imagine is quite high resulting in high electric costs with the sauna struggling to reach the correct temperatures even with the stove running at full power.

Types of wood

We use kiln dried selected spruce wood from slow growing spruce trees in sustainable forests, this has a very close grain resulting in one of the hardiest and best wearing woods for outdoor saunas.

Barrel type saunas use wood ranging from spruce to cedar, spuce is ok if it is slow grown and selected for its grain.

Cedar is not good, cedar is used for roof shingles in Canada because it is impregnated with cedar oils.

This makes any rainwater run off so it can be used for the outside of a sauna but it is in our opinion unsuitable for the inside of a sauna. This is because when the heat is applied from the stove the oils in the cedar can give off fumes which can effect anyone with breathing difficulties.

Wear and Tear

The way we build our Outdoor Saunas is with the wall panels going vertically and 30mm off the floor on a base frame this is to allow rainwater on the outside to run off and any moisture on the inside to run down to the floor.

All Barrel Saunas have their wood panels running horizontally this is to enable them to produce the round of the barrel.

The problem with this is that if the barrel has no outside waterproof covering any rainwater will slowly collect in the joints between the panels or on the inside the moisture and steam will also collect on the inside joints and at the bottom of the barrel curve.

This over a period of time creates a musty background smell with a dark mold forming on these areas.


When having a session in a Outdoor Sauna you do need the option of sitting on the top bench in the hottest part of the sauna this is essential in the cold winter months, and if you like your saunas to be the correct temperature.

Most Barrel Saunas have only one mid level bench these have comfort issues:-

  1. When you want to sit with your back against the curve of the wall you are always leaning forwards.
  2. You are heating up a large space above your head with a lot of the heat escaping through the thin roof section so the heat at mid level is not the hottest in readiness for our cold winters.

No wall insulation

Yes, barrel saunas ship and assemble easily, but because the walls are not insulated, some sauna users will notice a substantial compromise in heat.

A round wood wall made from 2×4’s is often not enough of a barrier from hot to cold. Imagine cold blowing snow hitting one side of the wood, and a sauna stove firing heat against the other side of the wood the freezing, melting, expanding contracting at the seams means that barrel saunas can often develop leaks.

Points to look for before buying an Outdoor Sauna

Types of wood panelling

Look out for external Sauna cladding showing large knots and branch cut throughs. This wood is from trees that have been grown very fast and is cheap to buy. To give a nice hard surface on the Sauna cladding you must use a slow grown wood with a very close grain, you can see this it has very small live knots which are part of the grain and not loose dead big knots.

The panelling should have gone through a kiln dried heat treatment process, this takes the wood down to 10% moisture. Anything below this makes the wood panels brittle and harder to machine.

Some companies may put a different name for the kiln drying process such as a “Thermo” Process.

Thickness of wood panels and walls

Our sauna panels are 20mm thick on the inside and outside of the sauna, with a 40mm cavity filled with high density rockwool slabs, giving a wall thickness of 80mm.

Some sauna companies don’t even tell you the thickness of the panels or walls.

Other sauna companies just tell you the thickness of the outside panels and not the inside panels.

In our experience any wall thickness less than 80mm will result in higher running costs.

Sauna roofs

The roof of an outdoor Sauna is very important, as this is what holds all of the heat in.

Take a look at our cut through of our outdoor Sauna roofs above, they are made up of 250mm of rockwool plus 38mm of wood section plus aluminium foil.

Can any other sauna company match our outdoor sauna roofs, we think not, this is why we do not go into detail about them.

Tongue and groove depth

This is very important. Ours are 20mm, the deepest of any sauna in the UK. This depth of tongue and groove allows us to secret nail the panels and helps prevent any heat loss. Most other sauna companies use a 10mm tongue and groove section which can lead to quite a bit of heat loss. The reason other companies use a smaller tongue and groove depth is because, over a metre run of wall, it takes 1 less sauna panel per section to build.

Benches and bench width

As standard we fit thick Obeche benches with a width of 500mm and a small 6mm gap in-between the bench slats. There are companies with narrow width benches and wide gapes which are not as comfortable to sit or lie on.

Sauna heaters

We use genuine Finnish heaters because they are very robust and will last you for years. Some other companies use substandard heaters from China or Taiwan with fancy or Finnish names on them. These are prone to breakdowns in the fierce heat of a sauna.

Sauna accessories

All of our accessories are produced in Finland.

Lighting in the sauna

Our lights are steam and heatproof. Spotlights and fancy lighting tend to break down in the heat.