Professional Members
Wallers (dry stone wall contractors) who are professional members of The Stone Trust are shown on the interactive map below.  Clicking the pin will take you to their member page where you can learn more about their business and see photos of their work. You can also access the professional member pages using the links organized by state/province. Additional certified wallers in North America who are not professional members of the Stone Trust are listed on our Find A Dry Stone Contractor page.
If you don’t see any certified wallers in your area, many wallers do travel widely for projects. Use our free project referral service to notify our professional members of your project.  Also check out our standard specifications for dry stone walls. Use of these specifications will help ensure a high quality result.
Dry Stone Wall Contractor Map
Click pins to view the profiles of professional members:
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= Master Craftsmen Certification | ![]() |
= Advanced Certification |
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= Intermediate Certification | ![]() |
= Initial Certification |
The DSWA-GB certifies wallers at four levels:
Level 1 (Initial) have demonstrated their ability to rebuild gaps in free-standing dry stone walls.
This certificate is usually obtained part way through training.
Level 2 (Intermediate) have demonstrated their ability to construct a sound, free-standing dry stone wall.
This includes a wall end (a.k.a. cheekend, wall head).
Level 3 (Advanced) have a proven ability to build walls with an emphasis on finish and quality.
This includes construction of retaining walls, curves and work on sloping ground.
Level 4 (Master Craftsmen) have a proven ability to produce quality work to a very high standard in a variety of commercial conditions.
This includes the construction of a full range of features such as steps, stiles, sheep holes, pillars, arches, etc.
Professional Member
Dry Stone Wall Contractors by State:
Click each Professional Member name to view full profile
California
Colorado
- Hilary Dees
Level II - Intermediate
Dees Drystone - Samuel Johnson
Level II - Intermediate
La Plata Stone Design
Connecticut
Maine
- Chris Tanguay
Level IV - Master Craftsman
Maine Dry Stone - David Inman
Level II - Intermediate
Deep Cove Stonework - Karl Gifford
Level II - Intermediate
Sebago Stonework - Steve Sclar
Level II - Intermediate
Fir Folk Stonework & Craftwork - Seth Corning
Level II - Intermediate
Atlas Stoneworks - Joe Norton
Level II - Intermediate
Norton Stoneworks - Seth Bullock
Level II - Intermediate
Bullock Stonework - Dan Morales-Walsh
Level II - Intermediate
Maine Stone Scapes - Harry Portlock
Level I - Initial
Ted Carter Inspired Landscapes - Noah Bryson
Level I - Initial
Ted Carter Inspired Landscapes - Charlie Sichterman
Level I - Initial
Ted Carter Inspired Landscapes - Jason McGeachey
Level I - Initial
Bolder Stoneworks - Jamie Metcalfe
Level I - Initial
Union Stone
Maryland
Massachusetts
- Benjamin Sandri
Level III - Advanced
Sandri Stonework - Bryce Hollingsworth
Level II - Intermediate
Stone Bear Hardscapes - Michael Papile
Level II - Intermediate
Stone Wall Tony - Ronald Neil
Level II - Intermediate
Bostonian Mason - Curtis Gray
Level II - Intermediate
Curtis Gray Stonemason - Dario Coletta
Level II - Intermediate
D. C. Stoneworks, LLC - Patrick Sephton
Level II - Intermediate
Sephton Stonework - Greg DeLuca
Level I - Initial
DeLuca Masonry Construction, LLC - Andy Braunschweig
Level I - Initial - Paula Fuller
Level I - Initial - Alex Ward
Level I - Initial
New England Stone Walls - Adam Mugford
Level I - Initial
Mugford Masonry - Billy Douglas
Level I - Initial
Cascade Designs Inc
Michigan
- Michael Murphy
Level III - Advanced
The Nature of Stone - Matthew Jones
Level I - Initial
Outdoor Expressions LLC
Minnesota
- Daniel A Peterson
Level III - Advanced
Habadapt Landscape Design - Daniel Arabella
Level III - Advanced
Arabella Stone Co.
New Hampshire
- Pete Ryder
Level II - Intermediate
Touched By Stone LLC - Victoria Merriman
Level II - Intermediate
Friction & Gravity - Andras Lazar
Level II - Intermediate
Lazar Masonry - Phil O’Donnell
Level I - Initial
New England Land Artisan - Rob Laffer
Level I - Initial
Granite State Landscaping and Stonework - Rob Keim
Level I - Initial
Keim Landscape Consulting - John Sandri
Level I - Initial
Sandri Stone - Derek Jolie
Level I - Initial
D.S. Jolie Landscapes, LLC
New Jersey
New York
- Judy Rand
Level II - Intermediate - George Harrar
Level II - Intermediate
George Harrar Building Services - Daniel Ryan
Level II - Intermediate
Ryans Rock N Landscaping LLC - Benjamin Maron
Level II - Intermediate
Kraftwright - Joe Johonness
Level I - Initial
Creative Earth Landscaping - Nicholas Bell
Level I - Initial
Bell Design & Landscape - Jackson Conn
Level I - Initial
Hudson Hardscape
North Carolina
Oregon
Pennsylvania
- Kim Coggin
Level III - Advanced
Laurel Stoneworks LLC - Jerry Coggin
Level III - Advanced
Laurel Stoneworks LLC - Fran Hammond
Level II - Intermediate
Morning Dew Stonework & Landscape - Charles Day
Level I - Initial
C.W. Day Construction Services LLC
Rhode Island
South Carolina
Tennessee
Vermont
- Michael Weitzner
Level IV - Master Craftsman
Thistle Stone Works - Dan Snow
Level IV - Master Craftsman
Dan Snow Stoneworks LLC - Jared Flynn
Level IV - Master Craftsman
Jared Flynn Stonework - Brian Post
Level IV - Master Craftsman
Standing Stone Landscape Architecture - Seth Harris
Level III - Advanced
Foxchair Mt. Craftsman - Jamie Masefield
Level III - Advanced
Masefield Dry Stone Masonry LLC - Alex Hoffmeier
Level III - Advanced
Ecolibrium, LLC - Michael K Murphy
Level III - Advanced
The Nature of Stone - TJ Mora
Level II - Intermediate
Mora Stone - Jordan Keyes
Level II - Intermediate
Trow and Holden Company - Trevor Bickford
Level II - Intermediate
Forever Stone - Sam Brakeley
Level II - Intermediate
Hermit Woods Trailbuilders, LLC - Torben Larsen
Level II - Intermediate
Windham Growers - Jacob McArdle
Level II - Intermediate
Ritual Landscapes - Russell Autrey
Level II - Intermediate
RL Autrey Horticulture - Melanie Grubman
Level I - Initial
Melanie Grubman Stonework - Luke Bonang
Level I - Initial
Luke Bonang - Lynn Herrmann
Level I - Initial
Lynn's Gardenscapes - Edward Haynes
Level I - Initial - Jim Adams
Level I - Initial
Castle Rock Stone & Design - Clark O’Bryan
Level I - Initial