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Harvst
Treatex
Thermafleece
Keim
Earthborn
Graphenstone
 A quick overview of sustainable construction, natural building and one planet development networks here in wales and across the UK.
Wales is leading the way in sustainable building and low-impact living with the One Planet Development planning policy, which was adopted by the Welsh Government in 2011. The policy emerged from grass roots natural and low-cost living projects that were popping up in the Welsh countryside in the late 1990s.
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NEW PRODUCT ALERT!
Harvst is the smart, Wifi connected growing system that helps you to grow more. 
Harvst smart mini greenhouses are the complete greenhouse system help you grow more with automated smart features including:
  • Soil moisture and temperature sensors with dual zone self watering
  • Automated opening roof to allow for ventilation in warm weather
  • Mobile App
Making gardening more accessible for all ages, no matter where you may be in the UK!
GET UP TO 20% OFF FULL KIT GREENHOUSE ORDERS

Order before 31-05-21 

Enter code 'GROWMORE' on checkout to receive discount
SHOP HARVST
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Treatex Hardwax Oil Ultra

Now available online

Did you know that it is now certified food safe? [Standard Food Safe: BS EN 1186-3:2002] The perect way to finish off your kitchen work tops and chopping boards!
Hardwax Oil Ultra (Clear) is designed to enhance and protect the natural beauty of all your interior timber surfaces. 
  • Slip resistance test BS 7976-2PTV certified
  • Safe for use on children’s toys: DIN EN 71-3
  • Easy to apply - buffed, brushed or rolled on
  • Quick drying - usually dry within 3-6 hours 
Treatex Colour Tones have been designed to give you a beautiful range of colours with which you can change how your floors, doors, stairs and worktops look and feel, without hiding the grain or the natural beauty of the wood.
  • Low Odour
  • Meets with VOC emissions regulations
  • Easy to apply
  • Quick drying
SHOP PRODUCTS
Treatex - Hardwax Oil ULTRA Clear
Treatex - Hardwax Oil ULTRA Clear
£28.36
Shop Range
Treatex - Interior Colour Tones Ultra
Treatex - Interior Colour Tones Ultra
£28.46
Shop Range
Treatex - Hardwax Oil ULTRA Natural
Treatex - Hardwax Oil ULTRA Natural
£27.54
Shop Range
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Tips, trends and more

For paint colour ideas to decorating tips, the latest news and competitions, browse our blog!

  • A guide to eco outdoor wood paints and natural wood oils: Read Article >>
  • We have compiled our top 5 tips for gardening in preparation for hot weather: Read Article >>
  • At Celtic Sustainables we select the finest environmentally-friendly products that benefit you and your home. In this article we discuss "How are we green?": Read Article >>
Psst...
One more thing. For more tips and inspiration follow us on Twitter, Facebook and Instagram. We'd love to hear from you! If you're renovating or in the middle of a project don't forget to tag us #CelticSus
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Celtic Sustainables, Unit 9, Parc Teifi business Park,
Cardigan, Ceredigion, SA43 1EW 
01239 777 009 
Copyright © 2021 Celtic Sustainables, All rights reserved.
Opening hours at Celtic
  • 9am - 3pm (office hours only) - Monday to Friday
  • Shop CLOSED until further notice