Cornerstone
Built of the back of a 25-year pedigree of developing, producing and supplying lime mortars, Cornerstone has quickly risen to be one of the leading suppliers of dry, ready mixed hydraulic lime and natural cement mortars, for restoration, conservation, modern construction and engineering works.
Every stage of production is based in house, in state of the art manufacturing facilities, allowing flexibility and quick turnaround times. All products are tested to EU standards within our own stringent test regimes, along with CE marking and under an ISO9001:2015 accredited management process.
Cornerstone supply mortars worldwide, with its mortars being used in some of the most prestigious buildings and famous landmarks across the world. As well as producing its own brand range, Cornerstone also contract manufacture for a large number of brands supplying ready mixed materials to the market.
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Cornerstone Drymix
Multi-purpose Lime Mortar & Render for Pointing, Rendering and general building work.
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Cornerstone Insulating Render
Render, Insulation and Dehumidifier all in one.
Insulating Render has been specifically...
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Cornerstone Promix
Professional grade, multipurpose lime mortars and renders for Pointing and Render applications...
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Cornerstone Harbour Mix
Fast setting and durable mortar for aggressive marine environments.
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Cornerstone Heritage Grout
For consolidation and joint filling of solid masonry.
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Cornerstone Marine Mix
Mortar designed for use in tidal zones and similar applications with regular contact with wate...
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Cornerstone Newbuild
Attractive, flexible, low carbon lime based mortars and render for modern construction.
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Cornerstone Remedial Render
Lime and Cement Render system for renovation of cement based mortars.
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Cornerstone Roofline Mix
Mortar designed for applications above the roofline.
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Cornerstone Scantle Mix
A fibred mortar designed for bedding natural slate and other roofing materials.
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Cornerstone Tanking Render
A render and tanking treatment for internal areas in contact with water.
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Cornerstone Wintermix
Natural Hydraulic Lime render, formulated to rapidly develop strength to resist frost damage w...
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Cornerstone Wood Lath Render
A fibred mortar for keying into woodlath backgrounds.