Diedrich Technologies, Inc.

Manufacturer of masonry-restoration cleaners, water-repellent sealers & paint removers: interior & exterior applications; ENVIRESTORE 100, a safer restoration cleaner that retains patina.

Slate Roofing

Slate and Copper Services specializes in the installation, maintenance and repair of slate, tile, wood and copper roofing systems.

Masonry Restoration & Cleaning

This metal roof has been treated with a waterproofing, elastomeric Acrymax coating from Preservation Products.

Roofing & Roof Specialties

Waterproofing materials for wood & masonry; Tin-roof restoration systems; AcryMax acrylic roof coating system. Also: Masonry coating systems, church work.

Stone & Masonry Tools

Tools for stone carving; church work; pneumatic mortar-removal kit

Diedrich Technologies, Inc.

Slate & Copper Services

Hydrochemical Techniques, Inc.

Preservation Products, Inc.

Trow and Holden Co., Inc.