The Trusted Lime Experts

The Trusted Lime Experts

We passionately believe that using lime and other breathable materials is crucial for the care and repair of our built heritage. We supply the complete solution for your building restoration and conservation needs.

Expert Advice & Information

Extensive Range of Products

Training & Custom Solutions

Our Mission

We passionately believe that using the correct breathable materials is crucial for the appropriate care and repair of our built heritage.
Whilst we won’t claim that lime solves all issues when it comes to the conservation and restoration of older buildings, we still believe that it is undisputably the best material available to manage the whole phenomenon of moisture in solid wall construction.

We manufacture a range of products on-site in Cornwall, including Lime Putty, Putty Based Mortars and under the Cornerstone brand, our range of Drymix Mortars and Renders. We work with a number of like minded manufacturers such as St. Astier and Beeck to supply an extensive range of breathable building materials.


With a reputable trade background in the care and repair of old buildings and a 25 year pedigree, Cornish Lime are the largest manufacturer and supplier of Lime products in the country. Our products have been tried and tested on countless projects. Please get in touch for more information on any of our products or services.

  • Lime Binders

    Lime Binders

    High quality natural and non-hydraulic lime binders for creating lime mortars, including Lime Putty, St. Astier NHL, Quicklime and Prompt Natural Cement.

  • Lime Mortars

    Lime Mortars

    Premixed lime mortars, renders & plasters supplied ready to use or in powdered form, including Premixed Putty Mortars and Cornerstone Mortars.

  • Sands & Aggregates

    Sands & Aggregates

    Sands selected for their mortar properties, colours and textures and the largest collection of decorative aggregates in the South West.

  • Breathable Paints

    Breathable Paints

    Breathable paints for both historic and contemporary construction, including Beeck Mineral Paints, Earthborn Clay Paints, Lime Paints and Limewashes.

  • Associated Products

    Associated Products

    Hessian, mesh, lath, bricks, mortar additions, paint strippers and other auxiliary products.

  • Tools


    Explore our range of tools and PPE, including all the essential tools for lime pointing, rendering, plastering or painting.



Popular Articles

Learn how to successfully point stone masonry and brickwork, including choosing a suitable lime mortar, application, aftercare and what to avoid.

Dive into the science behind breathable paint and discover how it can benefit historic solid-walled, and contemporary buildings.

Gain insights into lime’s rich history, classifications, numerous benefits, and versatility in building conservation and restoration projects.

Are you looking to paint an older house? Find out more about what to consider, the types of paint available and how to avoid common issues.

13:59 17 Apr 24
Wonderful helpful staff who helped me buy the correct products and explain everything I needed to know. All done with a... smile too. Many thanks to more
graham phillipsgraham phillips
16:26 28 Mar 24
Very very helpful nice people. They seem to stock everything and all the builders merchants in Penzance recommend them... and get their supplies from them. I am a DIY amateur and have never used lime plaster, but with their help, plus their supplies and tools and about 3 telephone calls to them (and YouTube) I have managed to lime plaster a rough granite wall with an acceptable (I think) smooth result suitable for painting in a more
Steve RobinsonSteve Robinson
17:26 04 Mar 24
Our go-to place for advice and materials for all things lime mortar and lime plaster, and all the necessary... accessories. Sometimes we get stuff delivered by them. They run fantastic, regular online training for free, and reasonably priced hands-on training. Very helpful more
Jake IresonJake Ireson
13:40 28 Feb 24
Andy BraundAndy Braund
11:10 14 Feb 24
Great service
William RichardWilliam Richard
18:29 29 Jan 24
Good guys with great knowledge and great products.
13:11 29 Nov 23
Great service, very nice people, more like them, best regards, driver Roman
Lewis StewartLewis Stewart
12:13 29 Nov 23
16:19 26 Nov 23
Lee CollinsLee Collins
06:36 10 Nov 23
Efficient, with great service as always!
mike blackshawmike blackshaw
18:52 05 Oct 23
Helpful staff and great quality materials
Mel ColeMel Cole
16:41 05 Oct 23
James HutchinsJames Hutchins
16:30 15 Sep 23
Good products, good advice.
Alec AyreAlec Ayre
19:06 04 Aug 23
Dave WhitfordDave Whitford
15:10 01 Aug 23
Al BAl B
11:48 23 Jul 23
I go there whenever I need Lime top make line wash for my cottage.. great advice and always time to assist.Even better... now they make their own line wash mixes!read more
Katy DavidsonKaty Davidson
16:50 26 May 23
Professional, helpful and knowledgeable 👌
zoe bengherbizoe bengherbi
06:16 21 May 23
Great company.I have been researching everything about lime for a while and found them out. I ordered one of their... products called insulated render, which is great. I am based in France so shipping 6T from the UK to France was not an easy thing but they have been very helpful.Recommend 100% the products, the people, the more
Lorraine CastleLorraine Castle
20:03 17 May 23
Very informative about their products
Gareth FordGareth Ford
08:16 14 Apr 23
Very helpful staff, great service and advice too.Had a few questions re add mixes etc and staff very helpful and... willing to help or source info.They do courses of lime work too for anyone who wishes to progress or just make a start using more