Making old buildings efficient through careful analysis and targeted, preservation-minded upgrades.
At Heritage Restoration, we are dedicated to maintaining the history of our built environment while improving the performance and comfort of older buildings. Historic houses can be made significantly more energy efficient—without compromising their character—through careful analysis and targeted upgrades.
Our approach blends advanced diagnostic tools with a deep understanding of historic construction. Using blower door testing and thermal imaging, we identify where air is moving through the building, revealing drafts, missing or ineffective insulation, and moisture concerns. We evaluate how the building was originally constructed, how it has changed over time, and how those changes affect its function and longevity.
Before any work begins, Heritage conducts a comprehensive building condition assessment, including:
Air infiltration analysis and draft detection
Building envelope evaluation for moisture, drainage, and structural concerns
Window and door performance documentation
Insulation feasibility studies
Mechanical system considerations, when needed
This data allows us to determine the most effective and least invasive improvements.
Our recommended energy efficiency measures may include:
Energy panels (storm windows) and appropriate weatherstripping
Air sealing, from basement to attic, to control airflow and reduce heat loss
Targeted insulation, including dense-pack cellulose and attic treatments where they are safe for historic fabric
Moisture and water management improvements, ensuring upgrades do not trap water or harm materials
Renewable energy systems, provided they are compatible with the building and the owner’s goals
Our audits combine independent scientific testing with our preservation expertise to create a clear, prioritized roadmap for improving comfort, lowering energy costs, and protecting the building for the future.

