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We provide training on our historic masonry and sustainable building products. offers a variety of services as well as the unique materials that will benefit a discriminating architect. We help the architect create specifications for our materials used on historic structures, designing an adaptive re-use project or creating a new sustainable, natural building. We provide historic mortar analysis. If you send us a sample of brick, stone, mortar or plaster, we can simulate a replacement material from the original. Material loss from exfoliating brownstone, serpentine stone, salmon brick, and other friable natural mineral substrates can be refurbished with our specialty material called Lithomex. Our products complement LEED, Energy Star, Passive House or historic buildings and can increase LEED scores and gain tax credits with their use in some applications.

Saint Astier Natural Hydraulic Lime 55lbs

Saint Astier Natural Hydraulic Lime

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Pumpkin Island Lighthouse provided Saint Astier Natural Hydraulic Lime to restore this 250+ year old structure for its conservation.

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LW Product Kits for in-situ evaluation demonstrating stock color selections: