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  • Celtic Sustainables
  • 01239 777009
  • 9 Parc Teifi Cardigan Ceredigion SA43 1EW


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Our Products are AMAZING! Don't take our word for it. Hear what our customers say.

Our Products are AMAZING! Don't take our word for it. Hear what our customers say.

Posted by Sarah, Celtic Sustainables on 5th Mar 2024

Our customers have spoken, and the reviews (⭐️⭐️⭐️⭐️⭐️) speak for themselves! Don't just take our word for it; see what others say about our amazing products.

There’s a reason these products have made it to our “Best Sellers” category - you'll love them.

We love hearing from our satisfied customers who have tried our eco-sustainable products. Positive feedback makes all the effort, time, and research in finding ethical products worthwhile. Your feedback motivates us to continue providing eco-friendly products that meet our high standards. 

We take pride in offering alternative environmentally friendly decorating and building products sourced only from ethical manufacturers. Our team ensures that all orders are packed and dispatched as quickly as possible while taking great care to use sustainable and recyclable materials wherever possible. Our dedication to quality is reflected in our impressive collection of 3019 reviews on, with an average rating of 4.9 out of 5. Moreover, 98% of our reviewers would recommend us to their family and friends.

Recent reviews from customers on;

“Extremely efficient service, delivered within 24 hrs of ordering, good price and free delivery.” Diana F Verified Buyer

“Used the wool to convert campervan, 2nd van now. Great product. I am a returning customer and will be back again.” Mitchell H Verified Buyer

If you are interested in reading more customer reviews, you can check out our page. Additionally, if you have recently used any of our products and would like to share your experience, we encourage you to leave a review. Your feedback can help others gain a better understanding of our products and assist them in making informed purchase decisions.

Here are the top tried-and-true products that have consistently delivered excellent results year after year. And we have the highest number of reviews from our satisfied customers!

Graphenstone - GrafClean Interior Wall Paint

Top Rated #1 - Thermafleece - Cosywool Sheep’s Wool Insulation

Thermafleece Cosywoolis is a popular insulation choice with over 400 5* reviews from satisfied customers. It is a lightweight and cost-effective option, making it ideal for new build and renovation projects. If you're looking for an insulation solution that delivers on both performance and affordability, Thermafleece Cosywool is worth considering; remember to check out our new sizes available in 150mm thickness and 370/570mm width.

Over 400 5* Reviews Online.

Karen N - 5* Review - “Fantastic product and fast delivery; we used this to insulate our little pottery studio before ply lining it. Lovely to use- would definitely recommend this product."
And Chris P Said - 5* Review: "The product is very good and easy to work with. Can notice warmer temperatures in rooms now loft insulated."

Top Rated #2 - Earthborn – Claypaint Interior Emulsion Earthborn - Claypaint emulsion paint doggy pic

It's the first product we started selling way back in 2011! Claypaint has consistently delivered excellent results. Customers love the  Claypaint's exceptional coverage and ultra matt finish; it's also super easy to use (no smells!). We mix in-house and always have it readily available. The highly breathable paint makes it ideal for lime plaster; it can also be painted on furniture! It's the perfect choice for people with allergies or asthma.

Louise A Verified Customer 5* Review - Claypaint This paint is amazing - lovely to work with, no smell, good range of colours. I need to use breathable products for our old house hence using this in the first place, but I would happily continue using it if I didn’t have to use breathable anymore.

Top Rated #3 - Thermafleece - SupaSoft Polyester Insulation

The  Supasoft insulation is an excellent alternative to conventional insulation, providing itch-free comfort and a vegan-friendly option. What our customers say;

Sophie J Verified Reviewer: “Great stuff, works well, easy to fit and super light, the room is now lovely and warm and good to know I’m reusing plastic bottles to keep warm!
Douglas O - Verified Buyer 5* Review “We ordered recycled polyester insulation from here, which was great. Plyable and lovely to work with, but it didn't feel like you were risking your lungs like when working with fibreglass. Fairly priced, delivery was all easy, would definitely buy from Celtic Sustainables again."

Baavet produce wool bedding in Wales using 100% British wool.

Top Rated #4 - Baavet - Wool Duvets and Bedding

Baavet produces  wool bedding in Wales using 100% British wool. Their products are breathable and hypoallergenic. They are ideal for people who get warm at night or have asthma. Did we mention that it's made in Britain, with British wool?

What our customers have been saying:

Karen C - Verified Buyer 5* Review “Never going back to a standard duvet again! I love the quality! I have purchased the light and medium tog rating.”

Jackie W - Verified Buyer 4* Review The duvet was well packaged in a nice cotton zipped bag

With an extra touch of a little lavender bag and a sample of how the duvet is made up. Usually, I have a double duvet, but I decided to buy the king size; we are getting used to the extra size on the bed. It is lovely and warm and nice to snuggle under. Great to have something made of natural materials. Overall, we are very happy with our purchase. Thank you.

Complete your bedding with a new  wool pillow or wool mattress topper, both highly recommended by customers.

Top Rated #5 - Keim - Optil Interior Silicate Paint

Customer 5* feedback, Verified Reviewer Sally D; “The best paint I’ve ever used. Creamy to apply and a lovely soft matt finish - we have walls of gypsum plaster and lime plasters, which look great on both. Sample pots match the colour chart perfectly and are much larger than other paint manufacturers’, so enough to test in different areas to see the effect of light.”

.... It tells you everything you need to know!Keim silicate paints available from Celtic

Why is  Optil emulsion paint so popular? It's silicate-based paint with intense, matte, lightfast colours that work well on mineral substances and can be applied over existing paint layers.

Key features and benefits of Optil paint:

  • Environmentally friendly, ISO14001
  • Low VOC (category A/a)
  • No odour during or following the application.
  • Breathable with high vapour permeability
  • Resistant to abrasion and soiling
  • Resistant to mould, mildew, and algae
  • Non-flammable
  • Intensive, lightfast mineral matt colours, including gold and silver tints.
  • Suitable for use on previously painted surfaces
  • Easy and safe application
  • Cradle to Cradle Certified SILVER

It's easy to apply and clean up with soapy water. Plus, it's one of our more affordable coloured paint brands per litre.

Top Rated #6 - Home Strip - Paint & Varnish Remover

A non-hazardous paint stripper and  varnish remover is completely water-based and solvent-free. It is ideal for DIY enthusiasts and has been widely used by professionals. Safe to use by people with respiratory problems such as asthma and safe to use around pets. Vegan and cruelty-free, too!

Customer 5* Review verified Customer Helen B: "A great product; it has easily removed layers of gloss paint from a wooden bannister. No fumes, no fuss."

Top Rated #7 - Graphenstone - GCS Exterior Heritage Silicate Masonry Paint

Graphenstone GCS Exterior wall paint combines lime, silicate and natural minerals to create beautiful matt paint. Suitable for interior and exterior, a little goes a long way with the GCS, one of the best paints for coverage. We'd recommend using the L42 primer, too; it equalises and stabilises the surfaces whilst maintaining very high levels of breathability.

Graphenstone image shot for website

Key features and benefits of Graphenstone paint:

  • Exterior use 
  • High covering power 
  • Ultra Matt finish (3% sheen)
  • Very Low VOC, < 1 g/l VOC emission: Class A+
  • Very Breathable, SD value: <0.08 
  • Certified for moisture control 
  • Tough and long-lasting 
  • Excellent Washability: Class 1 
  • Excellent flexibility - a non-cracking formula 
  • High adherence to substrates 
  • Fire performance: Class 0 (British Standard) 
  • Cradle to Cradle Certified SILVER 
  • GreenRate Certified: Level A

The GCS paint has been widely sought after since its release, and although we've received positive feedback from our customers, we have yet to receive any reviews on our website. If you have used it, please leave a helpful review so that others may benefit from it.

Top Rated #8 - Auro 524 White Premium Washable Emulsion

Auro has a wide range of environmentally friendly decorating products produced using 99% natural raw materials from sustainably managed sources.  524 emulsion is most popular with our customers who want durability and breathability, and the economy emulsion 321 if you want a cheaper alternative. Auro is naturally non-toxic, cruelty-free and odourless. It's easy to see why Auro 524 white emulsion has been a customer favourite for many years!

Happy customer review: Verified Customer Richard F 5* Review: “No smell, amazing opacity and very hard to get off when dry. Also, it's whiter than other brands I've tried. Would never go back to inferior brands.”

Top Rated #9 - Earthborn - Silicate Masonry Paint

The  Silicate Masonry Paint from Earthborn is a highly durable and breathable paint alternative to traditional lime-based or conventional masonry paints. It's part of a system, so remember to use the primer.

Verified Customer - Lukasz P, Bristol, United Kingdom: "Easy application keeps the wall dry and lasts a long time; after a few years, no pealing or problems."

Top Rated #10 - Caframo - Ecofan 812 Airmax Wood-Stove-Fan

Caframo EcoFan Stockists UK - Best stove fan - Read our EcoFan reviews by clicking on the fans below.Heat-powered fans are designed to circulate the warm air a wood or multifuel stove creates. Help heat the room more quickly and efficiently. With an  eco-fan, you have up to 18% potential fuel savings. 

  • No operating costs
  • Cuts fuel costs
  • Increases your thermal comfort.
  • Safe & very quiet
  • Perfect gift for someone special
Verified Customer - Toby B 5* Review: "Excellent fan, very fast start-up, and slow shutdown. Superb build quality, with excellent warranty and aftersales backup based in the UK. Highly recommended."
Verified Customer 5* Review: “Stylish, good quality, robust, does the job it's intended for.”

Top Rated #11 Loft Legs for Raised Loft Floor 175mm - Box of 12

Legs for your loft!  Loft legs are clever little inventions that have received great feedback from our customers. They are designed to provide extra height for your insulation to sit underneath without compressing it. This maximises the heat-saving performance of your insulation since compressing it can significantly reduce its effectiveness. So, if you want to improve your loft's insulation and save on heating bills, loft legs are a significant investment.

Verified Customer 5* Reviews: David S: “Great product and great company to deal with.”
And Gerald C: “Sturdy product, easy to install, competitive price.”

Graphenstone Paint Supplier UK

We are genuinely interested in helping you save money and keep your home cosy. We are always searching for more sustainable and eco-friendly products that are healthy for both you and the planet. Our primary goal is to help you save money in the long run. If you have found this article helpful, please share it with others so they can benefit from it, too. If you have used any of our products, please consider leaving a review on Google, or Trustpilot. We would be overjoyed if you mentioned how we helped you navigate the website and find the perfect products for your needs. If you need any guidance or support, feel free to drop us an  email or call us on 01239 777009. We are always happy to help.