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Tips and Info:Water Damage to Brick and Mortar

Few repairs are as simple or inexpensive as the maintenance of rain gutters. If you have limited access to the roof or are at any risk of falling, seriously consider […]

The ThermaTech System

Founder of Preservation Works Ltd., Rob Wozniak, gently removes 100+ years of carbon deposits while preserving the stone’s natural patina, which avoids an over-cleaned or sandblasted look that a regular power washer might create.

To learn more about the ThermaTech cleaning system, visit our masonry cleaning services!

Learn About Our Products

Our Products

  • Natural Hydraulic Lime
  • Natural Cement
  • Gypsum Lime Plaster

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Natural Hydraulic Lime (typically NHL 3.5) mortar should be used – rather than cement – for historic homes or buildings made of brick or stone.

We not only sell, but we use these binders/specialty masonry products imported from Europe that have been used for thousands of years in traditional building & are now being used in modern & “green” construction due to their high quality, reasonable cost & minor environmental impact!

Tigre Natural Hydraulic Lime (NHL) 5.0 for sale at Preservation Works Ltd/

Tigre Natural Hydraulic Lime (NHL) 3.5 for sale at Preservation Works Ltd/

Lime-Based Attributes

  • HISTORICALLY APPROPRIATE, which is important when repairing a historic structure for durability & to visually match the new to the old as much as possible
  • SELF-HEALING: has the ability to close cracks, further protecting the building from water intrusion or more dramatic damage to mortar.
  • VAPOR PERMEABLE: allows moisture to evaporate, preventing mold generation & ensuring bricks won’t crack/break during freeze/thaw cycles.
  • LESS COMPRESSIVE STRENGTH than cement: acts as a buffer between bricks; as bricks move & settle, mortar shifts to accommodate changes, keeping bricks intact
  • HIGHER BOND STRENGTH than cement, which protects from seepage & erosion
  • ENVIRONMENTALLY FRIENDLY: “green” product, made entirely from and by nature

Our Services

Using our knowledge & skills from historic work, we apply similar techniques & materials for new construction offering clients a rich, natural and healthy aesthetic in their home, a soulful alternative to sterile, machine-made construction.

Services We Offer

Masonry Coatings

  • Removal of Portland Cement, brick coat, toxic lead paint & water-proofing
  • Application of lime wash, Potassium silicate, stucco, masonry paint, stains & water repellents


  • Interior & Exterior (Stucco) Application
  • Use of Natural Hydraulic Lime (NHL)
  • Decorative & Ornamental Plaster
  • Custom finishes & pigment options


  • Mortar analysis & matching
  • Careful removal of mortar & replacement with historically appropriate mortar
  • Use of NHL, local sand, clay & pigments
  • Different finishes & colors available


  • Mortar analysis & matching
  • Design & development
  • Product installation training
  • Tool & material advice