What are the opening hours?

Monday 9am - 5:30pm Tuesday 9am - 5:30pm Wednesday 9am - 5:30pm Thursday 9am - 5:30pm Friday 9am - 5:30pm Saturday 9am - 5:30pm Sunday 10am - 4:30pm

Cousins Conservatories & Garden Buildings

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Cousins Conservatories & Garden Buildings

Cousins GB is a completely independent family run business operating within Sussex, Surrey & Kent, since 1990.

Cousins Conservatories & Garden Buildings is a family business based in Horsham, West Sussex, priding itself on supplying and installing quality home extensions and garden buildings for over 30 years.
4.9/5.0 on Google Our commitment is fully dedicated to the Conservatory and garden building markets. We offer you the services of our own specialist planning, construction and installation teams, wh

ich we totally project manage. The combination of which, we believe makes Cousins a major force in West Sussex, Surrey, Kent and the surrounding areas.

19/06/2026

🔨 Meet the Trades 🔨

This is Andy, one of our garden buildings installers who fits sheds, summerhouses and other similiar buildings for our customers throughout the area 🔨

Outside of work, Andy loves to read, listen to music and travel - his favourite recent holiday destination was Egypt! 🌍🛫

18/06/2026

Have you treated your garden building yet this season? 👀

Wooden garden buildings, such as sheds and summerhouses, need to be treated yearly in order to keep them in good condition and extend their lifespan. Now is the perfect time of year to carry out this essential task whilst the weather is dry and sunny, before the colder and wetter weather later in the year 🌧

We stock 5L tins of Birdbrand Complete Wood Protector at our Horsham showsite for just £50 including VAT and the benefits include:

✅ Protection against fungal growth & discolouration
✅ UV resisting pigments
✅ Can be spray or brush applied

Pop into our showsite today to pick up a tin and get that all important job crossed off your Summer 'To do' list 😉

17/06/2026

This stunning 8 x 6 Premium Pent shed by Powersheds was recently installed by our team for a customer in Shoreham, complete with timber bearers 🔨

Powersheds are running a promotion for 7.5% off all products - but it finishes on 30th June, so hurry if you want to take advantage! 👀

www.cousins-gb.co.uk/currentpromotions

To arrange your free site survey and quote, please call us on 01403 255456 or email [email protected] 📞

16/06/2026

Are you planning to host a party for the finals of the World Cup 2026? 👀

Well there is still time to order your very own bar from Timber Garden Buildings to really get that party started!🥂⚽

Don't delay, call us today - place your order whilst stocks last 😉

15/06/2026

Another fabulous UK Garden Buildings shed installed by one of our teams, complete with concrete base and bearers 💪

This 10 x 8 Supreme Apex now provides vital storage to this customer in Balcombe which could be used for garden furniture, tools, bikes, BBQs or children's toys ⚽️

To arrange your free site survey and quote, please call us on 01403 255456 or email [email protected] 📞

12/06/2026

Order your Robinsons Greenhouse by the end of June to claim 15% off 🙌

Head to our website to find out more about our greenhouses:

www.cousins-gb.co.uk/green-houses

Or call us on 01403 255456 to book your free site survey ✅

11/06/2026

This 6 x 6 Potting Shed from UK Garden Buildings fits perfectly into the little gap between the existing structure and the hedge of this customer's garden in East Grinstead. It is perfectly positioned to make the most of the sun hitting the work bench in order to maximise seedling growth 🌱

Our team delivered and installed this last month, complete with bearers ready for the Summer season ahead 🌞

To organise a free site survey or simply find out more, call 01403 255456 today 📞

10/06/2026

We've added loads of fabulous ex-dispay buildings to our ex-demo sale - available immediately from our showsite in Horsham, West Sussex 🌞

www.cousins-gb.co.uk/exdisplay

Give us a call on 01403 255456 or email [email protected] to find out more 👀

09/06/2026

A classic garden shed - the UKGB Supreme Apex 8 x 6 🙌

This customer from Storrington purchased our 8 x 6 Stock Package Shed, including a concrete base and installation by our team. This stock package offers a great saving so definitely worth checking it out on our website 😉

www.cousins-gb.co.uk/apex-shed-special-offer

08/06/2026

Order your Alton Greenhouse by the end of June to claim 15% off 🙌

Head to our website to find out more about our greenhouses:

www.cousins-gb.co.uk/green-houses

Or call us on 01403 255456 to book your free site survey ✅

Address

Hillier Garden Centre, Brighton Road
Horsham
RH136QA

Opening Hours

Monday	9am - 5:30pm
Tuesday	9am - 5:30pm
Wednesday	9am - 5:30pm
Thursday	9am - 5:30pm
Friday	9am - 5:30pm
Saturday	9am - 5:30pm
Sunday	10am - 4:30pm

Telephone

+441403255456

Website

https://www.cousins-gb.co.uk/

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