Cornish Lime

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Cornish Lime Cornish Lime are a manufacturer & supplier of materials suitable for building conservation & newbuild The new range products will be rolled out soon.

Cornish Lime Company is a dedicated manufacturer of lime based products such as high calcium mature lime putty, guaranteed at least four months old, lime mortars, lime plasters and lime washes. All of these products are manufactured here in Cornwall using high quality Derbyshire limestone. We have just opened a new purpose built factory to which is able to bulk dry sands as well as manufacture Drymix renders and mortars packed in handy bags. We are the largest stockists of decorative aggregates and sands in the region and supply in full tonne bags or 25kgs. We have a training centre and classroom on site and regularly provide session for delegates from all areas from building professionals to keen DIY enthusiasts.

Few buildings in Cornwall carry quite as much history (or as many ghost stories) as Bodmin Jail. Built in 1779, the jail...
20/10/2026

Few buildings in Cornwall carry quite as much history (or as many ghost stories) as Bodmin Jail.

Built in 1779, the jail played a significant role in Cornwall's history of crime and punishment, with its walls witnessing 55 ex*****ons in total.

The original ex*****on pit remains part of the visitor experience, alongside an immersive tour that brings some of the jail's darkest stories to life.

We recently learned that one of these stories in particular has a surprising connection to us, featuring a young woman said to be a late relation of one of our very own team members!

Even more interesting than the ghost stories and dark history is the building itself. After years of neglect and structural decline, the Jail was damp and derelict.

But between 2016 and 2021, the building underwent major redevelopment, and we worked with Cornerstone Mortars, using their specialist Insulating Render and a historically matched lime mortar, to breathe new life into the building and preserve its history for years to come.

The cells may be a lot comfier than they once were, but the question remains...would you be brave enough to spend a night behind the walls of Bodmin Jail?

Think you know everything about quicklime? Here's a spooky myth you might not know.Quicklime has long been believed to d...
16/10/2026

Think you know everything about quicklime? Here's a spooky myth you might not know.

Quicklime has long been believed to dissolve bodies. In fact, since the Early Iron Age, people have used quicklime in wars and epidemics, believing it sped up decomposition.

However, this is just pure myth. Recent experiments by Boston University and the University of Bradford suggest the opposite. It actually delays this process.

While our ancestors might have been wrong about how it worked, they still put it to clever use during the Cholera epidemic of the 1800s. "Cholera pits" were emergency mass graves dug when local churchyards ran out of space.

Often too shallow, they allowed odours to linger in the air, which was believed to spread the disease; authorities spread quicklime over the pits to neutralise the scent.

This eerie piece of history is closer to home than you think. The illustration above portrays Southernhay burial ground, a mass grave established in Exeter during the outbreak.

We found this image from the Wellcome Collection where you can find many more interesting historical illustrations, images and artefacts.

Last chance to jump on a Lime Plastering and Rendering course this year!Our final course of the year will be taking plac...
13/10/2026

Last chance to jump on a Lime Plastering and Rendering course this year!

Our final course of the year will be taking place on the 13th of November.

You’ll have the chance to learn the the foundations of plastering and rendering with lime-based materials, including lots of hands on experience led by Master Plasterer Sean Wheatley.

Comment PLASTER26 below and we’ll send you the link to learn more and secure your spot.

09/10/2026

Ever wonder why we so often see paint that's peeled, blistered or flaked away?

One of the biggest culprits behind exterior paint failure is trapped moisture, especially with modern synthetic paints.

Unlike traditional, breathable finishes like limewash, distemper, or mineral paint, which let solid walls breathe naturally, modern paints use synthetic binders that form an impermeable film, acting just like a sheet of plastic wrap that traps moisture.

As hydraulic pressure builds underneath, the paint is eventually forced right off the surface.

When planning to paint a traditional building, always keep breathability in mind. It's the best way to protect your masonry and ensure a beautiful, long-lasting finish.

Like and follow for more insights and tips.

06/10/2026

Our production plant and offices are now powered by solar energy.

We have completed a major solar panel installation across our site, providing an estimated 120,000wh per year.

This supports not only our daily operations, but is significant step forward in our commitment to sustainability.

Traditional, solid wall buildings can be particularly prone to damp issues.But with the right care and maintenance the r...
02/10/2026

Traditional, solid wall buildings can be particularly prone to damp issues.

But with the right care and maintenance the risk of damp can be drastically reduced.️

Save this post to help inspire your next maintenance or renovation project.

Taking a moment to appreciate this client project from Brambly Berry Cottage.Faced with blown-out plaster and damp, Gemm...
29/09/2026

Taking a moment to appreciate this client project from Brambly Berry Cottage.

Faced with blown-out plaster and damp, Gemma and her family set out to renovate the space with both functionality and charm.

When working with traditional solid walls like these, it's essential to consider material compatibility. Unlike modern cavity walls, which have an outer layer and an air gap to keep moisture out, solid walls need permeable, breathable materials to manage moisture naturally.

Opting for breathable traditional lime plaster allows moisture to transfer through the wall rather than trapping it inside the building fabric. Plus, it creates an ideal backdrop for their blue Rayburn.

Thanks again for sharing.

25/09/2026

That's a wrap on our 2026 Decorative Plaster & Running Moulds Masterclass. A big thank you to Master Plasterer Sean Wheatley Plastering Specialists and his talented team for hosting.

An excellent opportunity to explore a new traditional skill, this full-day course is packed with insights from decades of Sean's experience working on remarkable buildings across the United Kingdom.

You'll learn the fundamentals of decorative plasterwork, including running a mould in situ, fibrous plasterwork on the bench, and applying a finishing coat of plaster.

Our next course date is July 30th 2027. So if you want to secure a spot comment ‘FIBROUS’ and we’ll DM you a link.

Got a lime project planned? Don't forget the hessian.A strong, coarse-woven fabric made from the natural fibres of the j...
25/09/2026

Got a lime project planned? Don't forget the hessian.

A strong, coarse-woven fabric made from the natural fibres of the jute plant, hessian provides an excellent barrier between freshly applied lime mortar or render and the external environment.

In addition, damp hessian helps keep the relative humidity high next to the wall, slowing the water evaporation rate from within the lime mortar or render.
If this water evaporates too quickly, you can experience cracking, shrinkage or a weak or friable mortar.

If you have a lime pointing or rendering project planned, you can grab 200 or 270 GSM hessian in-store or on our website.

Sometimes it's nice to take a look back at how far you've come.If you've visited us for a course, you might have seen th...
22/09/2026

Sometimes it's nice to take a look back at how far you've come.

If you've visited us for a course, you might have seen this space. Upon its initial construction back in 2005, it served as a training area for our onsite courses.

Little did we know, we’d outgrow this space and build an entire training centre.

Today, this area is reserved for our technical team to escape the organised chaos of our busy laboratory, to carry out research, host meetings and make lots of coffee.

Address

Brims Park, Old Callywith Road
Bodmin
PL312DZ

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm

Telephone

+44120879779

Website

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