Grow your home
with Windows & Doors UK
Who we are
Proudly the UK’s favourite
Green Retreats is the UK’s leading garden room company. Since 2005, we’ve helped over 17,000 customers grow their homes with fully insulated garden rooms, ideal as garden offices, garden gyms, garden studios, or hobby spaces. As a family run company, we take price in working with our customers for the lifetime of their building, complete with a 12 year guarantee.
At Green Retreats, we handle everything, from measuring to professional installation of the foundations and garden room, to add value, space, and comfort to your home.

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What makes us different from other companies?
We’re proud to be a family run business that has been creating garden rooms with us customers since 2005.
In that time we’ve established our position as well trusted company with a portfolio of work that shows that our customers love our garden room buildings. We’re also proud to be highly recommended by our customers, rated 5 Stars on Trustpilot and 10% of customers being referred by recommendation.
Being ‘green’ is at our core as an eco-friendly sustainable company, taking care of our environment and being carbon neutral.
We make eco choices so you can too
Eco Policy
At Windows & Rooms, sustainability isn’t an afterthought. It’s central to what we do.
We are proud to say you can be 100% confident that the production of your garden room from Green Retreats has had no negative impact on the environment.
Powered by solar energy, our factory, showroom and offices are 100% carbon neutral — leaving no negative impact on the environment.
All timber used is FSC certified and sourced from sustainable forest programmes. We are advocates of using recycling. We also plant five trees to replace every one that we use.
The Green Retreats Group sends no waste to landfill. All waste generated by The Green Retreats Group is either recycled or used as fuel to produce power for our local village power grid.
What makes us unique
Why Choose Windows & Doors UK
Family Run

Proud to be family-run with a “village” ethos across the company. Friendly, real, professional.
20 Years of Know-How

Operating since 2005, we know something about offering high-quality and cost-effective garden buildings.
12 Year Guarantee

We’re confident our buildings stand the test of time because we’re older than our guarantee!
Windows & Doors Ethos:
– Superior customer service, Rated 5 Stars by our customers on Trustpilot
– Eco-friendly and carbon neutral company
– Transparent pricing, with inclusive pricing and clear quotes
– Backed by Grand Designs’ Kevin McCloud
– Quality independently proven to add value to your home
– Seeing is believing, with two showrooms to explore the quality of our buildings in person
– Family run with family values, Established in 2005.
– 12 year guarantee, and we’re older than our guarantee so we know our buildings last
Customers Love Us
5 Star Rated Windows & Doors
At Green Retreats we’re proud to know that our customers love us from our amazing 5-star Trustpilot rating.
What’s more, we also know that 10% of our new customers come directly from recommendations from previous customers!
- Trustpilot
Loved by thousands of homeowners
G2, Extra Room & Interior Design Studio
by Louisa (Louisa Tudor)
Fantastic Room in a little London garden!
We now have an amazing room at the bottom of our garden that fits in beautifully and feels as though it has been there for ever. All the staff were incredibly helpful and friendly and the entire process was very straightforward.
G3, Garden Gym For Personal Training Business
by E Fisher (Diva Fitness)
Excellent choice of supplier for my Garden Studio! So pleased
Green Retreats deserve every single one of my star ratings! They have been very professional right from the start, from welcoming me to their warehouse to helping me make the right choice through to a fabulous installation. The finished studio is amazing, a top quality build and the installation teams were timely, polite and very hard-working.
G3, Home Gym
by Alexa Garthwaite
Fantastic product and service to match
We had a 3.5m by 5m garden studio installed last month and we are delighted with the result. We are using it as a home gym and love the extra space it has given us! The building also looks fantastic at the bottom of our garden. Green retreats have been an absolute pleasure to deal with. In summary I have been very impressed by both the product and the service provided by green retreats and highly recommend!
Shop our Windows & Doors
Discover our garden room designs for your perfect space…

About Us
Windows & Doors Partnerships
– Kevin McCloud of Grand Designs
Green Retreats has proudly partnered with Grand Designs’ Kevin McCloud as our brand ambassador since 2020.
As an architectural guru and environmentalist, Kevin chose to work with us because of our brand ethos, sustainability practices and quality of construction with innovative methods and materials.
As part of the partnership, Kevin has visited our showroom and factory many times over the years to be part of our innovation meetings, contributing ideas and design elements for our buildings. Kevin also visited a customer to see one of our buildings in situ. We have documented two of the visits as short videos.

– TV & Magazines…
Over the years Green Retreats garden rooms have also been featured in articles from Ideal Home, Country Home, Homebuilding and Renovating, Country Garden, House Beautiful and many more. We’ve also been features in TV shows including Alan Titchmarsh’s Love Your Garden, Sarah Beany’s Double Your House for Half your Money and Nick Knowles DIY SOS.

– Find Green Retreats in Costco
Green Retreats garden rooms can also be purchased through Costco. Costco members can receive an exclusive discount against the Basebox Range of buildings. Costco are famous for selling the best quality brands at competitive prices.
About Us
Frequently Asked Questions about Windows & Doors UK
Will a Green Retreats Garden Room Add Value to my Home?
At Green Retreats we have been independently reviewed to prove that our quality garden room buildings can add between 5-15% in value to our customers homes. Not only are our buildings a unique and cost-effective way to add extra space at home, but they can also help attract more prospective buyers and fetch a higher sale price.


What warranty and aftercare does Green Retreats offer?
Every Green Retreats building comes with a 12-year warranty, except for the X1 which has a 20 year guarantee. Green Retreats has been around since 2005, meaning we’ve been around longer than our guarantee, so we know that our buildings really are built to last because we’ve experienced it.
We have a dedicated Aftercare department that you can pick up the phone and speak to any time should you need any support after your building is installed. We want to make sure we are here to help and look after our customers long after the installation and final payment.
Can I see a Windows & Doors in person?
Yes, and we’d highly recommend you do to make sure you end up with your perfect garden room. At Green Retreats we have 2 showrooms to choose from; with our Buckinghamshire flagship showroom with 21 buildings on display, and Twickenham showroom in London which has 4 garden room buildings on display. Read our Trustpilot or Google Reviews to see what our customers thought about the showroom and why so many of our customers recommend visiting one of the Green Retreats garden room showrooms.

Does Windows & Doors Handle Planning Permission if I Need it?
Most of our customer’s projects don’t require planning permission at all, that’s because our garden room buildings are designed to fall within your permitted development rights.
In the rare conditions that you might need planning permission for your project, Green Retreats do offer a planning service where we can handle the application on your behalf, which includes submitting drawings and liaising with the planning office. We have a 92% success rate with our planning permission applications here at Green Retreats, so you can rest assured that you project is in safe hands if you should need planning.
Where are your buildings made?
We have our own purpose build production facility in Buckinghamshire where every panel and section of your building is handcrafted by our own skilled craftsmen (some of who have been with us from the very start!). We moved into our new factory in 2019, and it was designed for maximum efficiency and sustainability. The factory is solar powered, which helps us with our carbon neutral status.
Our Buckinghamshire factory is just a 2 min walk from our Buckinghamshire showroom!


Who installs the buildings, are they Windows & Doors’ own teams?
Yes, we employ our own installation teams who will construct your building. Full professional installation is included in the price of every building already too.
Everyone here is employed by Green Retreats and we don’t use any outsourced contractors for our work. From the base/foundations, to the building installation and electrical works, everyone is part of the Green Retreats are never outsourced for complete quality control.
What’s more, we make our own doors and windows too, and our electrical teams are a sister company of Green Retreats. We’ve created a network of quality control that we’re very proud to have perfected over many years.
Is Windows & Doors an eco-friendly company?
Yes, Green Retreats is an eco-friendly and a carbon neutral company. Our factory, offices and flagship showroom are all solar powered from one of the UK’s largest solar panel parks.
For every 1 tree used in our buildings, 5 trees are planted in its place. Where quality is not compromised we use recycled or recyclable materials in our buildings.
We’ve also partnered with Climate Impact Partners to offset any residual carbon we generate as a business, making our showroom, factory and offices completely carbon neutral.


Are Windows & Rooms Insulated for Year-Round Use?
Every garden room building from Green Retreats is fully insulated using premium materials throughout to ensure they are warm, dry and comfortable to use all-year-round.
Whilst the insulating materials within each of our garden room ranges may differ, the same can be said for all of them in that they are fully insulated for comfortable year-round use. All buildings come with heating and internal electrics included in the price, except for Basebox where the heating options are an optional upgrade pack. Every garden room from Green Retreats is fitted with premium double-glazing into thermally efficient uPVC windows and doors.
Do you offer turnkey solutions (everything handled for me)?
Yes we do! Turnkey solutions are the cornerstone of what we offer at Green Retreats.
From measuring your space and checking the access and designing your garden room, all the way to professional installation of the building and even the foundations – we take care of everything, and that’s all already included in the price! Our skilled team members carry out the process from start to finish.


How Do I Get a Quote for a Green Retreats Garden Room?
At Green Retreats we can give you a free of charge detailed quote and visual design in many ways!
You can either give our teams a call, use our website online design tool, submit a quick quote form, visit our showrooms and design with our team in person, or book and on-site design consultation at your home where we can design your building with you there.
A quote from Green Retreats contains no hidden costs, making the process simple and easy.
How Do I Place An Order?
A £300 holding deposit is all we need to place your garden room order with Green Retreats. Your £300 holding deposit secures your chosen installation date, and then you have until 6 weeks before that installation date to finalise your design. The holding deposit is completely refundable too, so there’s no pressure. You can book up to a year in advance, and lock in your price to avoid any increases.
Simply call, email, visit us, or have us visit you to place your deposit.

Our History
There’s a lot of choice when it comes to picking a garden room company, but there’s only one company that does things like us…
1992
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2005
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2014
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2018
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2019
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2020
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.
2022
Reeves Founded
Founded as ‘Reeves’ offering animal housing to commercial and residential customers.



