Jenkins Slate Roofing Services
Offers consulting on repair of historic slate roofs and directory of recommended contractors in U.S.
http://www.jenkinsslate.com/

Fanlights
Builds custom reproduction Georgian fanlights and skylights. Includes information on the history of fanlight design.
http://fanlights.co.uk/

McCurdy & Co.
UK specialists in the repair and conservation of historic timber-framed buildings. Reconstructed Shakespeare's New Globe Theatre in London.
http://www.mccurdyco.com

Historic HomeWorks
Helping owners, tradespeople, contractors and building professionals understand and maintain their older and historic buildings. John Leeke, Preservation Consultant
http://www.historichomeworks.com/

Summit Restoration
Exterior building restoration and high-rise maintenance.
http://www.summitrestoration.com

William Anelay Ltd.
Repair and restoration of historic buildings, including stately homes.
http://www.williamanelay.co.uk/

Wallpaperguru
Specializing in historic restoration and conservation of wallpaper.
http://www.wallpaperguru.com/

Alma Stone
Offer masonry and sculptural restoration and custom architectural carvings in limestone and marble. Includes an overview of services, works history, and gallery.
http://www.almastone.com/

Linley Stained Glass Studios
Specialising in the conservation and restoration of stained glass at historic and religious buildings across the UK and Eire.
http://www.linleystainedglass.com/

Achille Grassi
Provides masonry restoration services for historic structures worldwide, including temples, statues, and foundations. Based in Italy. Also in Italian and German.
http://www.achillegrassi.com/

American Architectural Restoration
Contractor provides historic preservation and refinishing services for architectural and sculptural metal, marble, and wood.
http://www.aarestoration.com/

Intrusion Prepakt
Fabriform and grouting specialists work on historic projects worldwide; includes photos.
http://www.intrusionprepakt.com/

John Canning Painting Studios
Specializing in ornamental decorative painting, conservation and restoration of historic interiors.
http://www.canning-studios.com/

Masonry Restoration Maintenance, Inc.
Specialists in historic preservation and restoration. Offers complete exterior building maintenance, facade restoration, repair, evaluation and consultation. Based in Westlake, Ohio.
http://www.mrmrestoration.com/

Village Restorations and Consulting Inc.
Restores traditional log and stone buildings; provides workshops on trades of Colonial America; produces reproduction historic implements.
http://www.villagerestorations.com/

Coon Restoration and Sealants, Inc.
Provides masonry repair, restoration, and sealing for high-profile historic preservation projects.
http://www.coonrestoration.com/

Roof Menders
Performs tin roof restorations in the mid-Atlantic states.
http://www.roofmenders.com/