Showcentre now re-open 10am - 4pm 7 days a week.

We are following the guidelines from the Government on social distancing and therefore we may have to restrict the numbers on site at any one time.

To discuss your requirements or for further information please call 01403 255456

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We are still answering all 📞 telephone calls (10am – 4pm). We will respond to all 📧 emails and we’ve also launched 💭 live chat on the website.

Interested in a Conservatory or solid roof extension?

Quotes – register your interest in a survey and quote

Brochures 📖 can be emailed to you – Request one here

Looking for a Garden building?

Quotes – we can provide detailed prices and quotes for installation and bases – get in touch to discuss.

Brochures 📖 can be emailed to you – Request one here

Cousins Conservatories & Garden Buildings

Hilliers Garden Centre, Brighton Rd, Horsham, RH13 6QA

01403 255 456

Call our friendly team 7 days a week for help and advice

Open 7 Days a Week

Mon - Fri 09:00 - 17:30
Saturday - 09:00 - 17:00
Sunday - 10:00 - 16:30

Cousins Conservatories & Garden Buildings

The South East's Leading Showcentre

Watch our showcentre video

Click here to see our Buildings

Welcome to Cousins Conservatories & Garden Buildings in Horsham

We are an independent family run company and have been operating within Sussex, Surrey & Kent since 1989. We have installed 1000’s of conservatories and garden buildings during this time and operate one of the largest showcentres in the South East.

Need more space?

Want to enjoy your garden?

Working from home?

GUIDE: Does Putting a New Roof on a Conservatory Make it Warmer?

Our Horsham Showcentre

A visit to our showcentre in Horsham is the best way to experience our product ranges

What's On Display?

Arrange an Appointment

What's On Display?

You’ll find up to 80 buildings on display at any one time at the Cousins showcentre.

Conservatories, Orangeries & Extensions

We have 6 conservatory style buildings on display, each with a different finish, designed to maximise and showcase as many of the options available.

Garden Buildings

With up to 75 display buildings on display at any one time we really do have something for everyone. From sheds and garden storage to summerhouses and garden rooms, we’re proud to work with 8 different suppliers and all our products are made in the UK.

We have the largest display of Greenhouses anywhere in the South East with more options on display than you could care to imagine.

Arrange an Appointment

Conservatory CAD Design Centre

Arrange a personal appointment

If you’re looking to add a conservatory, orangery or extension to your property but want to ask some questions prior to arranging a free site survey and quotation why not book a free personal appointment with a member of our team.

Discuss your requirements and get your questions answered..

With over 20 years of expertise in the industry our team are happy to assist you with every aspect of your project.

To book a time to see us please call 01403 255456 or complete our booking form and a member of the team will get back to you to confirm an appointment.

How to Find Us

You’ll find our showcentre at Hilliers Garden Centre on Brighton Road in Horsham. Our full address is Cousins Conservatories & Garden Buildings, Brighton Road, Horsham RH13 6QA.

You can click here for directions to us.

Case Studies / Examples of our work

LivinRoof Conservatory Project with Sliding Patio Doors

LivinRoof Conservatory Project with Sliding Patio Doors

July 8, 2020

Here’s a great example of one of our LivinRoof Solid Roof Conservatories. This was for a project in Pulborough, West Sussex where we also installed

Sun Lounge Conservatory - Turberville Smith

Sun Lounge Conservatory with Activ Blue Climate Guard Glass Roof

July 1, 2020

This is a classic Sun Lounge Conservatory that we designed and installed for a customer in Rudgwick, West Sussex. Overall base size 6980mm Width x

Picture Showing of a Regency Pegara and a Regency Royston - Mountain

Regency Garden Summerhouse and Shed Installation

July 1, 2020

Here’s a double installatoin of two Regency buildings for a customer in Henfield, West Sussex. The buildings are a Regency Pegara (12′ x 10′) Summerhouse

Malvern Arley Corner Summerhouse 9x9 - Buckland

Corner Summerhouse 9 x 9 Installation in Partridge Green

June 24, 2020

Here’s a 9 x 9 Malvern Arley Summerhouse that we installed for a customer in Partridge Green, West Sussex. This installation included navigating a tight

Woodlands 10x16 Log Cabin Instllation - Fury

Woodlands 10 x 16 Log Cabin Installation in Capel

June 24, 2020

Here’s an installation of 10 x 16 44mm bespoke Log Cabin that we installed for a customer in Capel, Surrey. This building features a 2.5m

Alton Shipton Cedar 6x6 Summerhouse Installation - Dunks

Alton Shipton Cedar 6 x 6 Summerhouse Installation

June 17, 2020

Here’s a Alton Shipton Cedar Summerhouse (6 x 6) we installed for a customer in Cuckfield, West Sussex. The Alton Summerhouses come with a 2

Malvern Garden Building Electrics

Garden Building Electrics Case Study

June 17, 2020

Here’s an installation of a 12’ x 10’ Arley Apex Malvern garden studio that we installed full electrics in to. We have around 10 Malvern

Woodlands Super Apex 7x5 Key - Date

7×5 Garden Storage Shed Installation in Crawley

June 10, 2020

Here’s an installation of a 7′ x 5′ garden storage shed that we installed for a customer in Crawley, West Sussex. 7′ x 5′ Garden

8x8 Alton Evolution - Kingshott

Alton Evolution Greenhouse Installation in West Chiltington

June 10, 2020

Here’s a 8′ x 8′ Alton Evolution we installed for a customer in West Chiltington, West Sussex. We also laid the base which was constructed

Recent Testimonials

Hello Jacky and team Just a short note to say ‘thank you’ for our new conservatory. We are delighted with the finished building and appreciate the trouble that you went to get everything absolutely right. All your workmen, particularly Darren and Josh, were very efficient and were a pleasure to have around (as long as gallons of tea were provided!).

Andy and Geraldine Ritchie

Written Testimonial

Dear Cousins Just wanted to say thank you for the lovely bouquet of flowers you sent us on completion of our lovely conservatory. We are just laying a new wooden floor in there and look forward to using it over Christmas and the New Year. Please pass on to all staff concerned, our wishes for a very Happy Christmas and a Happy New Year.

Angel and Martin Russell-Croucher

Written Testimonial

A very good experience from first visit to show through to completion. Excellent attention to detail by Gavin, Jackie and Roger during quotation and specification. Similarly during installation by the two Daves work was carried out efficiently again with good attention to detail and finish. Cousins have transformed an old shabby conservatory into a bright modern living space.

John Sweeney

Review from Google

Dear Cousins Having just received your guarantee document in relation to our new conservatory we’d like to say that we are very pleased with it. It has exceeded our expectations. The construction is excellent, the finish really good. We’d particularly like to commend your teams, Ian and Louis, LJ and his crew for their excellent work. It’s (almost) been a pleasure having them here, despite them drinking us out of tea and coffee and elder-flower cordial. So many thanks to you all for a job very well done.

Ken & Maggie Williams

Written Testimonial

Dear Sean and Sam Cousins did an excellent job on our new Summerhouse. The building size had to be adjusted for planning reasons due to the proximity of the boundary and this they managed very well. The groundworks were completed very well and with minimal mess.Finally the fitting team arrived the following week and meticulously put together the building with particular attention paid to the cedar shingle roof. They also painted any scuff marks that had occurred during the build at the end of the job. All in all an excellent building and well put together and at a competitive price. We would throughly recommend Cousins to anyone looking for a garden building or similar. Ours certainly looks beautiful.

RL and JI

Written Testimonial

Dear Sean We are delighted with the Summerhouse that you have supplied for us, very well made and constructed. The organisation at your end has been perfect and the people that you sent to do the work were really efficient and good humoured, a pleasure to meet. Your team had to carry all the items a considerable distance. The laying of the concrete base and construction of the building went so smoothly that at one point I began to wonder if I was dreaming.

Simon Dannatt

Written Testimonial

We've always been impressed with our Cousins conservatory. We've had it for 11 years and it's the room we spend the most time in all year round. We've just had the roof upgraded to an ultra frame roofing system, ordered through and fitted by Cousins. The workmanship is great, the roof is fantastic: much better light levels, improved thermal performance (keeps the space cooler on sunny days and warmer in the colder evenings), looks great and is so much quieter than polycarbonate when it rains. We'd recommend Cousins, their products and their fitters very highly indeed.

Sam Evans

Review from Google

Frequently asked questions

What are your opening hours?

We are open Mon – Sat: 9am to 5:30pm, Sun: 10am to 4:30pm and we are also open every Bank Holiday from 9am to 5:30pm

Where are you based?

We are based at Hilliers Garden Centre on Brighton Road in Horsham. Our full address is Cousins Conservatories & Garden Buildings, Brighton Road, Horsham RH13 6QA.

You can click here for directions to us.

How many conservatories do you have on display?

We have six display conservatories that feature most of the different configurations that we offer. This includes glass roofs, solid tiled roofs, partially glazed roofs, glass to ground and dwarf walls.

You can click here for directions to us.

How many garden buildings do you have on display?

We also have up to 80 garden buildings on display at any one time. This includes sheds to summerhouses, garden rooms, log cabins and home offices as well as the South East’s largest display of greenhouses.

You can click here for directions to us.