Performance Optimization
Energy performance for windows and doors that keep their historic look, for existing units and new ones. Oakleigh's approach supports high-performance homes, including projects aiming for Passive House-level comfort. Every project is quoted individually. Tell us about your windows and doors below.
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Historic look, modern performance
Oakleigh builds energy efficiency into windows and doors without changing how they look from the street, which is often the condition a landmarks commission sets. They also offer performance optimization for existing window and door units.
How it is done
Depending on the job: vacuum insulated glass, simulated double-hung sashes in place of true divided lights, triple-gasket sealing, and air sealing and insulation where the unit meets the wall.
Where it fits
Landmarked and historic buildings, deep energy retrofits, and high-performance homes, including projects targeting Passive House-level comfort.
