About Us

Our Clients


Clients We Work With...
  • Assured Developments
  • Arcuri Homes
  • Albi Homes
  • Baywest
  • Calbridge
  • Calgary House Corporation
  • Camterra Custom Homes
  • Carriage Custom Homes
  • Carolina Homes
  • Cedarglen Living ( multifamily)
  • City Core Developments
  • Crossley Custom Homes
  • DaVinci Homes
  • Deanco Construction
  • Elite Homes
  • Excel Homes
  • Forte Builders
  • Greenboro Homes
  • Hawthorn Homes
  • Homes by Avi
  • Homes by Us
  • Hopewell
  • Jager Homes
  • Janssen Homes ( multifamily)
  • Jayman MasterBuilt
  • Jigsaw Homes
  • Klair Custom Homes
  • Lantern Homes
  • Lask Homes
  • Lifestyle Homes
  • Loreck Homes
  • Madison Ave. ( multifamily)
  • Mattamy Homes ( Single and multifamily)
  • Morrison Homes
  • Newcastle Homes
  • Niklas Group Calgary
  • Partners Developments ( multifamily)
  • Point of View Condominiums
  • RNDSQR ( multifamily)
  • Willow Brook Homes
  • Truman Homes
  • Sabal Crafted Homes
  • Shane Homes
  • Stepper Custom Homes
  • Sterling Homes

Red Deer

Clients We Work With...
  • Avalon Master Builder
  • Canada West Homes
  • Glennstar Homes
  • Hafso Developments
  • Laebon Homes
  • Landmark Homes
  • Riser Homes
  • Sunreal Property Management
  • Trueline Contracting
  • Unique Elevations


Clients We Work With...
  • Bedrock Homes
  • Best Communities
  • Cameron Homes
  • Coventry Home
  • Christenson Homesd
  • Homes by Avi
  • Hopewell
  • Jaymon MasterBuilt
  • Landmark Homes
  • Rohit Group
  • A Snihur Engineering

Grande Prairie

Clients We Work With...
  • Brentwood Homes


Clients We Work With...
  • Colbray Homes
  • Thermo Pro Insulation


Clients We Work With...
  • Colbray Homes
  • Thermo Pro Insulation


Clients We Work With...
  • McKee Homes


Clients We Work With...
  • SAIT (Southern Institute of Technology)
  • Professional Home Builders Institute of Alberta

Province Wide

Clients We Work With...
  • Canadian Home Builders Associations (Manitoba, Alberta and Locals)
  • National Home Warranty
  • Progressive Home Warranty
  • Alberta New Home Warranty
  • VerdaTech Energy Management & Consulting
  • Enervision (Built Green)

What our Clients say…

"One stop shopping for expert advice..."

“One stop shopping for expert advice on moisture protection applied to new construction; building envelope design, materials and applications strategies, code compliance, problem solving and remediation supervision.”

-Mark Love

Forte Builders

"We would like to thank you..."

“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..."

“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

“A True Professional”

“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

"Highly knowledgeable and professional..."

“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

"Continues to share his expertise and knowledge..."

 “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

"Helped City Core solve several complicated building issues..."

“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..."

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

– Les Willems

One World Developement Corp.

"Thank you..."

” 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..."

“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

"Extensive knowledge of construction..."

“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

"[Assisted] with fine tuning some of our building envelope details..."

“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

Contact Us

Getting in touch with us is easy, call at one of our office numbers or fill out the form below:

Calgary: 403-251.0683
Toll-Free: 1-866-241-6804

Edmonton: 587-991-8257

Medicine Hat: 403-251-0683

Central Alberta: 403-251-0683

British Columbia

Vancouver Island: 778-441-3838

Lower Mainland: 1-866-241-6804

Revelstoke: 1-866-241-6804

Okanagan: 1-866-241-6804

Smithers: 1-866-241-6804


Greater Toronto Area: 1-866-241-6804

Contact Form


Qualistat Building Performance Consultants - Head Office Address
514, 3208 8 Avenue NE
Calgary, AB

Phone: 403-457-7828
Office Hours: 8 am - 5 pm, Mon - Fri