Building Solutions for Wood Frame Structures

Building Performance is a combination of design, execution and building science knowledge. It goes beyond minimum building code requirements. It is affordable and results in a lasting, efficient, comfortable structure.

Important Information about the Greener Homes Grant

Greener Homes Grant

The Government of Canada has committed to 700,000 grants of up to $5,000 to help homeowners improve the energy efficiency of their homes. Our sister companies VerdaTech Energy Management & Consulting and Acacia Engineering Ltd. are licensed service organization providing the home energy evaluations required to qualify for the grants. Click here to find out more about the grant and how to book an EnerGuide evaluation. 

BC Step Code Update

Step Code 3 will be the default option starting May 1, 2023. Click here to learn more.

About Us

As Building Consultants, our focus is on wood frame construction in Single and Multi-family buildings. We work with warranty providers, home builders, condo associations, insurance companies and private owners.

We don’t do the actual remediation work; however, we are available to supervise and provide quality assurance reviews.

Book Now

Looking to book? Fill out the form below. Please be as descriptive as possible in your message.

3 + 7 =

Building Reviews

Our building review services are focused on construction defects and diagnostics, as well as pre-drywall and building envelope site reviews of new buildings. We call this Predictive Performance Evaluations. 


Our team of building envelope specialists has over 100 years of combined hands-on experience with new and renovation building projects.

We are certified in infrared thermography, building science, HVAC design, Master Homebuilder and Renovator, Professional Site Manager, and Moisture Control Technician, Passive house, EnerGuide, LEED, Net Zero, 9.36 energy compliance, NECB, and more.

We have performed thousands of diagnostic assessments and forensic audits for litigation and are qualified, expert witnesses.

NDT Diagnostic Testing

Non-destructive Diagnostic Testing for moisture issues, like water ingress, stucco and window leaks, excessive frost and condensation, air leakage, and energy efficiency.

Based on thousands of tests such as ASTM and proprietary methods, we include methods like infrared thermography, pressure differentials, blower door airtightness, HVAC static, and mechanical balancing, measurements for humidity, and temperature and data logging.

Training & Seminars

We offer customized training solutions for building performance,
building science, energy efficiency, diagnostics, troubleshooting, and energy modeling.

We offer training using mockups and hands-on displays in our training center or live video presentations.

Our sister company VerdaTech Energy Management is working with CIET we provide energy adviser training across Canada. This positions students to challenge the required NRCan exams. We provide a very affordable and creative path to completing the required probationary files and achieving the full NRCan EA certification. Our virtual probationary file program allows you to work from the comfort of your home to complete this final step in becoming an Energy Advisor.


Why Work With Us?

Our experienced team of building envelope specialists will help you find water leaks and moisture issues using non-destructive testing methods where possible and then provide recommendations on how to solve these issues and act as a resource during the pre-drywall construction phase of your project. 

“When our home builder discovered mold 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

“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

“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

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