About Us

“Carolina Homes we would like to thank you for the lead you have taken to remediate moisture problems that have been haunting homebuilders in Alberta for so many years.”

-Ken Moulding

Carolina Homes

“Qualistat has been an indispensable resource for us. They have helped us build quality homes and most importantly helped us solve complex envelope related issues.”

-Jordan Giustini

Canterra Custom Homes

“When our home builder discovered mould in our 4 year old home they could not elaborate on the extent of the problem nor could they give us a good explanation as to the locations or severity of the situation. When Darrell with Qualistat was brought in he did a complete analysis and gave us a good understanding of the situation, remediation to the problems, and a sense of security back in our home.”

“A True Professional”

– Warren & Sheila Schurman

Calgary, AB

“Darrell at Qualistat was highly knowledgeable and professional. After our home analysis he shared all the results in an informative manner which we were able to understand. It was comforting knowing that we were finally dealing with someone who had a high degree of integrity and cared about our 5 year issue with a major air flow problem in our new home.”

-Lorne & Kim Thompson

Sundre, AB

 “Darrell was a much in demand facilitator for PHBIA’s applied construction courses and continues to share his expertise and knowledge with Alberta builders at our monthly technical series offered around the province.”

-Professional Home Builders Institute

“Darrell has helped City Core solve several complicated building issues from both the code side as well as the practical application of new methods and materials in our homes.”

 – David Tidmarsh

City Core Developments

“Thank you again for your enlightenment / help in improving our understanding of building technology.”

– Les Willems

One World Developement Corp.

” I just wanted to thank you one last time for the experience and knowledge from the two day course. I really enjoyed it and think you are an excellent communicator and instructor.”

– Robert Jabbs

Jabbs Group

“Darrell helped us correct a difficult envelope issue in an existing multi unit building, coordinating the remediation, testing and final reports.”

– Don Dessario

NORR Architects Planners

“We have utilized Darrell’s extensive knowledge of construction and his down to earth practical approach help present courses and seminars to the industry.  He packs the house every time! “

– Joan Mainsonneuve

CHBA – Alberta

“Darrell assisted Homes by Avi with fine tuning some of our building envelope details.  What I really appreciated was Darrell’s understanding of an assembly as a system.  He avoided the “magic-bullet” answers and helped us come to solutions which suit our construction practices and company culture.”

– Michael Jacobson

Homes by Avi