Licensed Energy Advisor
NRCan, BCIN, HRAI Certified
Great White Energy Solutions provides professional energy compliance and design services for builders, contractors, and homeowners in Ontario, Canada.
Our Expertise
Streamlining the approval process and delivering accurate, cost‑effective, and Ontario Building Code–compliant energy solutions for residential projects.
Licensed Energy Advisor
Licensed Energy Advisor certified by Natural Resources Canada (NRCan) providing accurate, unbiased energy assessments to help homeowners understand their home’s performance, improve efficiency, and reduce energy costs—while meeting all federal and provincial program requirements.
HRAI & HVAC-DC Member
Follow industry‑recognized HVAC standards, delivering informed, professional design and guidance on heating, cooling, and ventilation systems to improve comfort, efficiency, and performance.
SB‑12 Performance Compliance
Providing SB‑12 performance compliance packages with comparison reports prepared as required to verify energy efficiency performance in accordance with Ontario Building Code requirements.
Blower Door Testing
Provide blower door testing to confirm air‑tightness performance and meet Ontario Building Code, SB‑12, and NRCan energy compliance requirements.
Thermal Heating
Providing professional thermal imaging inspections as a certified thermographer, identifying heat loss, insulation deficiencies, air leakage, and moisture‑related concerns to support energy efficiency analysis, diagnostics, and building performance verification.
BCIN Certified Specializations
HVAC System Design
HVAC design services that meet Ontario Building Code requirements, supporting permit approval and delivering efficient, properly sized heating, cooling, and ventilation systems.
Ventilation Design Summaries
Provide detailed ventilation design summaries outlining system type, airflow requirements, and control strategies to support Ontario Building Code compliance and ensure healthy indoor air quality and balanced system performance.
F280 Heat Loss Heat Gain Calculations
Complete CSA F280 heat loss and heat gain calculations to accurately size HVAC equipment, ensuring code‑compliant system design, reliable performance, and year‑round comfort in accordance with Ontario Building Code requirements.
EEDS Form Completion
Energy Efficiency Design Summary (EEDS) forms are completed to confirm Ontario Building Code energy compliance and support smooth, efficient permit approval.
Serving Clients
Ontario Wide
Servicing the Counties and Regions of Bruce, Elgin, Essex, Grey, Huron, Lambton, Middlesex, Oxford, Perth, Wellington, and the Regional Municipalities of Niagara and Waterloo, including the major cities London, Kitchener, Waterloo, Cambridge, Guelph, Windsor, Sarnia, and Brantford.
Client Reviews
Alex Google Review
I needed an energy audit before considering how to replace an aging furnace and air conditioner at our house in Southampton , Ontario. He knows his stuff and especially his way around the government rebate programs. He did the preliminary energy audit and prepared a report showing our options. After we did the install of a heat pump, he returned and prepared the wrap up report, including filing for the rebate on our behalf. All very helpful. I’d highly recommend him.
Kass Google Review
Mr. Collison did an energy assessment of my house. He is knowledgeable, friendly, polite and efficient. A trustworthy, professional guy.
Paul Google Review
Great guy and very professional. He came to our place to do 2 assessments. Both went uneventfully and he went above and beyond what his scope of work was. Highly recommend him!