Welcome to Chalk Down Lime ...

Chalk Down Lime is a specialist manufacturer & leading supplier of the finest quality, English-made traditional lime putty products & other sustainable building-conservation materials throughout the South East and UK since 1996.

From our rural Sussex lime works we produce our quality Lime Plaster the traditional way by hot-mixing the best quality English quicklime with specially selected washed sand. This produces a superior quality, lime-rich material with improved workability and authenticity - suitable for sympathetic historic conservation repairs for our most sensitive built heritage. We exclusively distribute many other quality products from renowned European brands including Lafarge Natural Hydraulic LimeHydraulic Lime Mortar and Hydraulic Lime Render, BIFOAM Foam Glass Aggregate, DRVOLIT Wood Wool Boards and ISONAT Woodfibre Insulation and Woodfibre Boards.    
  
We offer local and national delivery throughout mainland UK via our pallet and courier network. We welcome new specialist trade enquiries and provide bulk discounts and offers across the range. NB. Website trade prices are exclusive of VAT @ 20% 

From all the team @ Chalk Down Lime... 

 

Quality and Standards

Our sustainable lime products are made to the very highest quality and environmental standards.

The key raw materials in our products including the lime and sand are sourced within the UK and comply with the relevant British and European standards.

We continually strive to achieve excellence in all aspects of production and supply and only offer the best quality products from the most recognised and respected suppliers and brands.

Product Data & Safety Data (SDS)


Product Data Sheets and Safety Data Sheets (SDS) can be downloaded on the Product Data page and are available across the range and are continually updated to provide the best and most current information.

All our products are stocked items and ready for immediate despatch across mainland UK.
 
Bulk discounts are available for pallet quantities and bulk orders. 

Why Lime?

Lime was the primary building material for all domestic and commercial construction right up until World War 2. The national housing stock of the UK is made up of 25% pre 1919 lime-built, traditional solid-wall masonry & timber construction.


With the loss of skills and craftsmen after consecutive world wars and the need to provide quick and cheap housing in the wake of bombing and the population boom led to the emergence of mass-produced modern construction methods and products in the middle of the last century. This included the complete switch to Portland Cement based mortars and renders and Gypsum plasters which provided much needed speed and cost effective construction.


Many historic building over that time up until now have been extensively repaired using these inappropriate materials including cement and gypsum based products which are widely accepted to be causing damage to historic lime built structures as they are, in the main, non-breathable and inflexible causing buildings to become sick and create hermetic seals trapping moisture and causing issues with damp and decay which if left untreated can lead to health issues for inhabitants and decreased living standards. 


Lime has been used for centuries right across the world as a key building material for construction. It has been at the heart of development and growth to create housing, commercial buildings, fortifications, monuments, public spaces and civil engineering projects. The ancient ruined cities of civilisations such as The Minoan in Greece and Pompeii in Italy are a testament the longevity and durability of this wonder material.

 

Flexible, breathable and durable...

Lime Mortar and Lime Plaster has a very open pore structure which allows the minute transfer of moisture allowing solid masonry and timber frames to remain dry and function as they should.

Lime Plaster and Lime Render has excellent flexural strength and are best suited to historic timber-framed buildings as they work in harmony with the structure during the seasons.

Lime is sacrificial in its nature and designed to be softer than the fabric of the building providing the ultimate care and protection.

Lime is a truly sustainable and eco-friendly material as it allows masonry units i.e bricks and stone to be reused after their previous useful life. Lime mortar won’t damage the masonry when removed meaning they can be recycled and used again!!  

Safe and convenient to use...

Our versatile lime products are available in fully sealed bags for your convenience. They are premixed and ready to use, however they may require some knocking up to obtain the desired consistency.

Lime is made from a naturally occurring material: Calcium Carbonate (Chalk or Limestone) when burnt it is converted to Calcium Oxide (Quick Lime). When re hydrated (slaked) it converts to Calcium diHydroxide (Lime Putty). 

Lime Putty is the primary binder in our premixed Lime Plaster and Limewash. It is classified as Irritant and needs to be handled with care. We strongly recommend using suitable personal protective equipment (PPE) when working with lime.  
For ready-mixed lime mortar and lime plaster:
Order online or call: 01580 830 092
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