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The Trusted Lime Experts

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

    Ready-mixed mortars, 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


    Specific tools selected for working with lime, including tools for Pointing, Rendering, Plastering and Building, along with essential PPE and clothing.