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Rubicon Garden Rooms | Visit our Showroom

What are the benefits of owning a RUBICON™ Garden Room?

There are numerous benefits but the most critical ones are:

1) It's an asset that can add value to your property

2) More versatile than a conservatory but about the same price

3) Numerous uses for leisure or business

4) Can be used all-year round

5) Saves the cost of Commercial Rent if working from home

6) Its zero maintenance if you choose our wood fibre composite cladding materials

Why should I buy a RUBICON™ Garden Room?

1) Built with treated timbers to BS5589 giving a minimum 25 year structural life expectancy

2) 10 year structural building guarantee

3) Meets 2013 Building Regulations

4) Zero Maintenance exteriors

5) Built to Last™ - with a lifespan in excess of 30yrs its built like a small house NOT a shed..!

6) Fire Resistant Interiors and Exteriors

What do you mean by Zero Maintenance?

If you choose our wood fibre composite cladding materials instead of traditional Cedar or other natural wood exteriors, then you will never again need to paint or stain your cladding material. Previously our standard fit was Western Red Cedar which is a nice material, but needs annual staining if you want to keep the original colour (otherwise it goes a silver-grey and black like a shed, and this can be patchy) and, being a softwood, it is easily dented and marked. Using our new wood fibre composite cladding materials means that our buildings now only need an occassional power-washing to maintain their factory colour and look, plus the material is much tougher so it will take the day to day knocks which Cedar will not.

What can a RUBICON™ Garden Room be used for?

Virtually anything – Garden Office, Craft Workshop, Recording Studio, Hot-Tub Cabin, Granny Annexe, Home Cinema, Gymnasium to name a few.

Can I use my Garden Room all year round?

Yes, our buildings are fully insulated with the U-Values of a modern 2013 house and are warm in winter and cool in summer.

Do your Garden Rooms comply with Building Regulations?

Yes, they fully comply with Part A, Part L (2013) and Part P of the Regulations for modern (2013) houses.

What are the Planning Regulations?

See our separate tab for Planning Regulations but generally, it is classed as Permitted Development. If you choose a Garden Room or Garden Office which is below 2.5m in height, and you are not a listed building or in a special zone, you can fit it anywhere in your rear or side garden without a Planning Application being required.

Are your Garden Rooms well insulated?

Yes they have extremely high levels of insulation to enable year-round use, typically 50-125mm of Foil Backed PIR Foam (which is twice as good as Fibreglass or similar type insulation) to Walls, 50-125mm to Roof, and 50-100mm to Floors (all depending on model chosen). This is just one reason why they are ideal for use as a Garden Office as they are comfortable all year round.

What is the cost of Heating your Garden Rooms?

The estimated cost of electricity for heating a 12m2 Garden Room is around £100 per year at 2015 prices.

Are they well soundproofed?

Yes, for playing of loud (ish) music or instruments but if you wish to use it for a Recording Studio you will need us to fit additional soundproofing.

What type of insulation do you use?

We use a mixture of Kingspan or Celotex PIR foil backed insulation (for its low U-Value) and where required, Rockwool (to improve soundproofing).

What is the Roof made of?

For our flat roof models we use a Firestone EPDM rubber with a 25 year manufacturers guarantee. For our pitched roof versions, we use a synthetic roof system which simulates natural slates and tiles offering zero maintenance and a lifespan in excess of 30yrs.

What type of Cladding do you use?

We can offer all variants of cladding from Western Red Cedar, Exterior Self-Coloured Renders, and Wood Fibre Composites.

Are your Buildings Fire Resistant?

Yes, they are built with exterior and interior materials with a Class 'O' (the highest rating) spread of flame characteristics.

What Guarantee do I have against my Roof leaking?

We provide a 20 year structural guarantee and Firestone guarantee their EPDM rubber material for 20+ years, so you are doubly covered.

Can I walk on the Flat Roof to carry-out cleaning and maintenance?

Yes, our flat roof models have been designed to take the appropriate loads for maintenance but they could not be used for a veranda or similar purpose.

What maintenance is required for my Garden Room?

If you choose our Wood Fibre composite or Wood Laminate cladding systems they will require just an occasional power wash (for bird droppings etc). You might sweep the roof of leaves and debris on an annual basis, and general cleaning of glass etc and that’s pretty much it. If you have chosen Cedar as an option you will need to stain annually if you want to keep the original colour, otherwise you can let it go grey-silver naturally but this will take a number of years during which time the colour can become patchy.

How do you know if my Roof will withstand the weight of snow?

Because we use the TRADA and NHBC guidance for structural loadings and the cross sectional size of our support beams meet or exceed the requirement.

What Guarantees do I get?

20 years Structural guarantee, 20 year Roof Membrane and 20 year Cladding guarantee.

What Professional Bodies are you affiliated to?

We are vetted by the local Trading Standards Office under their 'Buy With Confidence' Scheme on an annual basis to check the quality of our work and customer satisfaction.

What experience do you have of manufacturing Garden Rooms and Garden Offices?

We have over 20 years experience of housebuilding and renovation including timber framed homes. In 2013 we turned these skills to the specialist manufacture of Garden Rooms and Garden Offices.

How do you know the U-Values meet Building Regulations?

We have all our insulation U-Values produced and certified by an independent competent authority which are available to view by customers on request.

What is Cold-Bridging?

This where there is insulation between the frames, but the timber frame itself is uninsulated. This causes a cold bridge between the inside (warm) and outside (cold) sides of the room. It is overcome by insulating across, as well as between the frames in a RUBICON™ building as per current Building Regulations and NHBC standards.

Can you provide a SAP rating and EPC?

Unfortunately not because these ratings are dependent upon a number of site specific factors such as wind direction and position of the sun, so we cannot predict this for our Garden Rooms.

Why do you fit a twin wall system with a vented cavity?

Because this is the only way to build a Garden Room capable of year-round usability - our walls are up to 170mm thick with a vented cavity. It is the same as having a cavity wall on your house – if one is not present then wind-driven rain can penetrate the building and cause damp and draft problems.

Why do you fit Breather Membranes?

These are essential on timber framed buildings as they prevent water penetration from the outside but allow moist air to escape from the inside. This allows the building to breathe and avoids the problems of rot and fungus and the musty smells you get with cheap sheds.

Why do you fit OSB sheathing to the Timber Frames?

This stabilises the building structure and prevents what is known as “wind shear”. This is the same effect as a pack of cards being built into a tower and being blown down by a simple puff. So the OSB provides lateral stability to the structure and is essential to avoid the risk of collapse. It also improves the U-values due to the improved air tightness and provides a draft proof building envelope.

What does the Vapour Control Layer do?

This prevents moist air entering the fabric of the structure from the inside of the building, creating what is called interstitial condensation (effectively condensation inside the timber frame). Again it is an essential component if a timber framed building is constructed properly.

Are the Structural Timbers treated?

Yes, we have all our structural timbers treated with a 25 year preservative to BS5589. Effectively this means that the timbers could be directly exposed to moisture for prolonged periods without deterioration. This is unlikely to happen in a RUBICON™ building because no timber is in touch with the ground or exposed to the environment, but it’s nice to know you are protected if it did.

Is the Timber Frame of solid construction?

Yes, we build all our products with C16 and C24 graded structural timbers which are the same as used to build houses, and our walls are 170mm thick including a vented cavity just like your modern house.

What do you mean by "Built to Last™"?

Everything we do and all materials we use are of the highest quality and are designed to last a lifetime in excess of 30yrs, ensuring your investment is protected for the long term, and we offer the guarantees to back this up. Let’s put it this way – the Three Little Piggies would be very happy and secure if they lived in a RUBICON™ building!

What about the windows and doors?

All of our windows and doors are to the latest security and insulation standards and offer the highest U-Values available for modern Double Glazed units. They are also fiitted with Pilkington's 'K' Glass as standard further increasing comfort and reducing running costs.

What prevents water and wind penetration to the inner face?

A number of things actually:

1) The exterior cladding is interlocking and of the highest quality so penetration of the outer skin in unlikely.

2) The cavity construction allows any moisture, if it did get through the outer skin to drain away before hitting the inner wall.

3) The Breather Membrane on the face of the inner wall panels is water repellent and fully weather proof even if there was no cladding fitted..!.

4) The OSB3 sheathing on the wall panels is water repellent.

5) The inner Vapour Control Membrane helps prevent drafts

Consequently, the chances of any problems in a RUBICON™ building are very remote, hence our confidence to issue 10 year guarantees.

What about the risk of Condensation?

The risks of condensation are minimal due to the construction methods adopted in a RUBICON™ building – Vented Cavity construction, Vapour Control Layer, Breather Membrane, Trickle Vents and Cross-Ventilated roof are designed to eliminate this risk.

What is the internal finish?

We currently use plasterboard and skim as this gives the same finish as a house. We could use wall panelling systems but these have ugly joints around the walls and ceiling and give a cheap “caravan” feel to the building. But if you require this option, please talk to us.

Are the Floors moisture resistant?

Yes, we use a 22mm (rather than the 18mm housing standard) industrial floor system which has a green water resistant finish. These boards are an ideal base for carpet, laminate of ceramic tile finishes. The manufacturers say that these boards can be left outside in the rain for up to 42 days without being affected by the rain – not that we’ve tried it yet!

What types of screws and nails do you use?

Normal woods crews and nails will rot within 5-6yrs in treated timber due to the chemicals present which erode the screws/nails even when galvanised. So we ONLY use either stainless steel or 2000hr salt tested screws to avoid the possibility of rust and eventual structural failure.

Is there a Damp-Proof Membrane between the earth and the underside of my building?

Yes, we fit a 1300g heavy duty DPM across the whole of the base frame as standard just as you would in a modern house.

Can I take my Garden Room with me if I move house?

Yes you can, although it is a big job. We can do this for you but would need to quote on an individual basis.

How long does it take to assemble on-site?

Our skilled teams take from 7 to 10 working days on average dependent on the building size.

What foundations are required for my Garden Room?

As standard we install special concrete pile or steel screw foundations (particularly on uneven ground). There would be about 16 of these on a 4m x 3m building giving a very strong and stable base. We can also fit to an existing concrete slab where required. 

What do I do if my ground is uneven?

As our base is supplied with adjustable galvanised feet (each capable of withstanding 6 Ton loads), we can accommodate most uneven ground situations up to about 18" fall.

How is my Garden Room delivered?

There is a lot of material so it arrives on either a 7.5 ton lorry or a couple of long wheelbase vans. Suitable access is required and when we do our site survey we check that your location can accomodate our access needs before confirming your order.

Where can I see one of your Garden Rooms?

Factory visits 7 days a week are welcome by prior appointment. Sometimes we can arrange a visit to a prior customer but some people do not want strangers wandering around their garden so we respect their privacy.

Do you make Charitable Donations?

Yes but only to our sponsored charities which are:

Help for Heroes

Great Ormond Street Children’s Hospital


Do you employ your own Fitters?

All our fitters are trained by us and most of them work for us full time. However in certain areas of the UK we do use Approved Installers who we have trained and vetted but are not employed directly by us.

Can I extend my Garden Room if I find I need more space later?

In certain circumstances, yes.


Rubicon Garden Rooms | Visit our Showroom

What our Customers Say

"Please convey my thanks to everyone and we were very touched at your kindness. You were all an absolute pleasure to have around and it felt very quiet without you!! We are absolutely thrilled with the Garden Room and have now painted the walls and ceiling and the laminate wood flooring and skirting boards are being fitted tomorrow. Once the skirting boards are painted we can move in the furniture and will be like pigs in muck!!! Many, many thanks once again, we are absolutely delighted with our Garden Room. After you left Heather sat on the decking with a glass of wine, this is the life! Take care and you all have a safe journey tomorrow. Thank you once again."

Andrew and Heather - Ruthin, N.Wales

“We did an awful lot of research and found Rubicon online. We drove across to Deeside to have a look at their showroom, and all the different examples on display. We liked managing director John Lyon a lot and his approach gave us confidence to start the process. All in all, it took a couple of months from deciding that we would have a Garden Office until the team arrived on site as they were very busy and we needed to book a delivery slot well in advance. Then they were here for about three weeks for the installation which included drainage and water supplies for a toilet and mini kitchen. The team were lovely guys – no nonsense and very diligent, polite, hard-working people. Dave likes to cook a bit – mainly cakes and pastries – so he baked things for them, which always helps to keep the team happy..! We now have a beautiful extra Garden Office room, which Dave uses when he’s working at home. He has a 30 second walk to work in the morning, and it means we are no longer in the way of each other. I believe that the building is also a thing of great beauty and I would absolutely recommend Rubicon to anyone considering something similar.”

David and Rachel - Manchester

"We trawled through the internet and Rubicon sounded like the best bet for what we were after. We made an appointment and went down to the showroom on Deeside. There we met Managing Director John, spent time looking at the different examples on show and examining the products, and then had a good chat about what we needed. We never felt rushed or pressurised, and had time to think about what we wanted - his whole manner makes him such a good person to deal with. We felt that we were getting a good product. What Rubicon offered was perfect for what we wanted and, once we started the process with them, the work was done in just two to three weeks. The team turned up every day at the time John said they would, and were polite and very easy to get along with. Having them here working in the garden was no trouble at all and I would recommend Rubicon without a doubt - in fact some of the neighbours have already been round to see it and ask where we got it. I can say hand on heart that John and his the team from Rubicon were the nicest people we have ever had work for us."

Dennis and Val - Stockport

"Dear John, Thank you very much, all very professional from your company throughout the construction and installation. I cannot find anything, but if there is somewhere where I can place a review or recommendation on your web site I will be pleased to do so. Please just send me a link. As and when the garden, now under snow is complete, I will forward some photos, probably June the way the weather is. I have received a letter from Flintshire County Council asking for me to comment on your services. Just to let you know that I am returning it, highly recommending your company. All the very best to you and your company in the future. We are really pleased with our Garden Room and I would not hesitate in recommending you to any future customers. Just ask them to call me."

Mick and Barbara - Burnley

“I love my new garden room. Got to say this was one of the most enjoyable experiences of dealing with a company ive had for a long time. Finish is fab inside and out, its made such a difference, we use it all the time. Jake our son, won’t come out of there. Can’t thank John and his team enough of a great product at a great price….Thank you, etc etc.!”

Gill and Ben Henderson, Warrington

"We wanted to get a Garden Room that David could use as a separate office that was peaceful and quiet when he’s working from home. We liked what we saw at Rubicon’s showroom in Deeside straight away, and got on very well with the MD John Lyon – he immediately gave us the confidence that he would deliver what he promised, and he did. We took one of their standard Garden Offices and adapted it so that it would work for us, and nothing we suggested was a problem for Rubicon – they were really good to work with. They kept me posted all the time about what was going on, what stage they were at and who would be coming and what they would be doing the next day. They tidied up after themselves too, and really minimised any inconvenience. What was very important to me as well was that we had my elderly father staying with us at the time, he was 85, and they were so very respectful to him. Everyone from the young apprentice to the seasoned builders treated him brilliantly and talked to him about what they were doing every day while I was out at work. The Garden Office is lovely and warm as it’s fully heated, and so can be used all year round. I would most definitely recommend Rubicon Garden Rooms to anyone."

David and Kate - Frodsham

“Rubicon’s extension been fantastic, and it has really changed Ray’s life. It’s very warm and fully insulated, light and comfortable - it is easy to look after. We can get Ray in and out of bed and into his wheelchair much more easily, and it means that he has somewhere to go that’s his, for some quiet time. He loves sitting by the big window watching the birds and wildlife, or enjoying the views of the garden. The extension is very well made and went up quickly, and has changed our life. It means Ray has somewhere to sit, and we haven’t lost our lounge. When our three grandchildren come round, they love to go into his room and see him. I can’t thank Rubicon enough for the help their team have given us, they have been brilliant."

Ray and Josie - Mancot

“We had been looking for something to fill a big space at the bottom of our garden for some time and then Pat heard about a local Garden Room company through our friends at the golf club who had had one built for them. We went to have a look and were very impressed so contacted Rubicon for more details. I must admit that when we saw the showroom model we were so impressed that all logic went out of the window - we didn’t even consider the alternatives until after we had paid our deposit - not our normal way of doing things. But we needn’t have worried. I researched the internet and the price we had been quoted for what we had fitted represented excellent value for money. We could not be happier with our choice now and would like to thank Bill and Alan for doing such a great job - always smiling and nothing was too much trouble. We would highly recommend Rubicon Garden Rooms and are are actively passing on the message amongst family and friends. Good luck for the future”

Cliff and Pat Lovell, Llandudno

"Hi John, Just got back from a couple of days in London. I can confirm that invoice has arrived and has been paid. Many thanks for ALL your work. At our little garden party last Sunday all commented on the new Garden Studio - and one chap has examined it thoroughly (!!) and will contact you to arrange one for himself. All like the grey!! Hope you have a lovely Christmas, and hope we can keep in touch. Best wishes. PS Jan will send you photos with some plants in front!"

Stephen and Jan - Hawarden, Nr Chester

“This company may not be the biggest but they are surely the best. I drove my wife mad in my research for a building to run our business from after out-growing the spare bedroom I wanted something which could provide a distinct break between home live and work. To be frank there were not many companies within our locality, most of those i found were based down south and I wanted someone more local that I could put a face to ( and shout at if i needed!). A friend of mine had had some building work done recently and recommended I talk to them to see what they could do as he thought they also made garden offices. Best decision I ever made was to contact Rubicon the whole team are so professional and the product is fantastic. No complaints whatsoever apart from it did take a bit longer than I thought it would as they were very busy at the time. But the end result has been a triumph, exactly what I wanted at a competitive price and when i look at what i have saved by not renting an office it’s a no brainer…”

Phil Grayson, Northwich

"I saw Rubicon Garden Rooms online and wanted to find something that was nearby so that I could go and see what they were doing and talk to people face-to-face about it. I went along to the showroom in Deeside and I was very impressed with what I saw, and with the Managing Director John Lyon. I nearly ordered a conservatory but changed my mind at the last minute when I realised that one of these Garden Rooms would be nicer and much more use to me all year round. It was quite an investment so I took some time to think about it but eventually I decided to go for it and treat myself, as I was still working but also had my pension coming in. I went back for another chat and told them what I wanted and they just came and did it. They knocked down the old lean-to and started again and created this lovely room, leading on from my main living area. Rubicon Garden Rooms were just lovely to work with and did everything I asked. From the very beginning they gave me good advice and guidance and made it a really easy process throughout – I’d definitely recommend them to anybody else looking to extend their home simply and quickly."

Beryl - Talacre, N.Wales

"One of our disabled tenants required access to ground floor facilities, including a bedroom and bathroom. This need was urgent, so instead of a traditional build, which would be highly disruptive to the tenant, we approached Rubicon Garden Rooms who provided a high quality Garden Room attached to the property, which has the potential to be reused elsewhere in the future. We were delighted that Rubicon were able to quickly provide this essential modification to the property that met the council's rigorous standards for such work."

Cllr Helen Brown - Flintshire County Council

“We did quite a bit of research into companies that make them and chose Rubicon Garden Room as we thought a synthetic material would last better and we liked their range. Here in the Garden Room I can switch the laptop on and keep up with conference calls at any time, which is important as we have manufacturers in America and the Far East. Having this Rubicon room just gives us a bit extra space and lets me get away from the house when I need to. Their team were great, they cleared up after themselves every day and I couldn’t fault them at all. We’re very happy with what we’ve got, it’s a perfect, self-contained space with everything we need. and it makes a huge difference to my work-life balance.”

Nick and Paula - Halifax

"We had an office on a local business park, but being able to move into our own premises here has been a wise business move. We've got the perfect, self-contained space with everything we need. We can now open our French doors and have lunch on the patio in a lovely established garden, which is something most people would love. We did a lot of research and found that the prices were all very similar,” said Julian. “But what we liked about Rubicon was the fact that we could go and see their factory in Deeside and the examples they had on show. We also visited a few completed buildings and talked to the owners and we heard nothing but positive feedback so we decided to go with them. Most of the structure is prefabricated at Rubicon’s base and then they come and slot it together on site. They were great to work with – they were all very competent and everything I asked of John and his team, they delivered."

Julian and Kerry - Wirral

"Hi John, Hope you have enjoyed your weekend! Building is brilliant, we are extremely pleased with it, plaster is drying out nicely. I have sent over the last payment to your bank this evening.....On behalf of Clare & myself, I would like to thank You and the build team (Buster,Lee,Martin, Liam, Kurt & Dad), and not forgetting the window guys... for all your hard work and excellent eye to detail on our lovely pool room! Will let you know when everything is completed and you are welcome to visit with your Marketing PR person if you need any further photo’s. Look forward to meeting up for a cuppa soon :)"

Colin and Clare - Leicester

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