The Challenge
Making a 4,500 sq. ft. Home Energy-Efficient
Sonbuilt Homes turned to Airtight Solutions to tackle a significant challenge: improving the airtightness of an aging, drafty, 4,500-square-foot single-family house in Fort Langley.
The mission was clear—reduce energy loss, enhance indoor air quality, and extend the home’s lifespan without compromising the homeowners’ comfort.
Our team collaborated with Sonbuilt during the initial walkthrough to assess the renovation’s scope.
Together, we:
- Identified materials to be replaced and retained.
- Reviewed the HVAC system.
- Examined the building envelope.
- Analyzed the energy model to prioritize areas for improvement.
Armed with this information, we recommended two cutting-edge solutions for the Sonbuilt Homes Fort Langley retrofit: Aeroseal Duct Sealing and AeroBarrier Envelope Sealing.

Preparation
Setting the Stage for Success
Ensuring precision begins with meticulous preparation. To get started:
- For Aeroseal Duct Sealing: We gathered detailed specifications on the existing HVAC system to tailor the process for maximum effectiveness.
- For AeroBarrier Envelope Sealing: Calculating the home’s volume and heated floor area helped us set up our equipment for optimal performance.
Additionally, protecting the home’s existing features was a top priority. To prevent sealant adherence, trained professionals carefully shielded finished surfaces like flooring, cabinetry, and appliances.
Incorrect preparation could compromise results, so we left no detail unchecked.
Execution
Delivering Seamless Efficiency
The project unfolded in carefully coordinated steps:
Duct Sealing: We began by thoroughly cleaning the ducts to enhance the Aeroseal process. This phase was completed within a single day, significantly boosting the system’s efficiency.
Surface Protection: While duct sealing was underway, our team prepared the home for AeroBarrier by protecting all surfaces. This step required two days of meticulous work.
AeroBarrier Application: The final stage involved applying the AeroBarrier air-sealing solution, sealing leaks of up to 1/2 inch with pinpoint accuracy. This process was completed in just one additional day.

Our advanced sealing technologies delivered exceptional results!

Results
Dramatic Improvements You Can Feel
These enhancements translate to:
Lower energy bills.
Better indoor air quality.
A longer-lasting, more resilient home structure.
The homeowners now enjoy a comfortable, energy-efficient living space with significantly reduced environmental impact.
Conclusion
Modern Comfort Meets Sustainable Living
The Fort Langley Deep Energy Retrofit project showcases Airtight Solutions’ expertise in transforming homes with innovative sealing solutions.
By combining state-of-the-art technology with a commitment to quality, we helped create a space that’s as energy-efficient as it is comfortable.
Ready to redefine your comfort zone? Airtight Solutions is here to help.
