Enjoy modern comfort while preserving the charm of your original windows with Indow. Indow window inserts press inside your window frames without a mounting bracket to give you all the comfort and efficiency of high-end replacement windows. Indow inserts have the lightest touch, both structurally and aesthetically of any window insulation solution and are perfect for commercial and residential settings.

Supplier of mini-duct system: has small flexible hoses for retrofitting HVAC systems into old buildings.

Company provides 2' flexible tubing ductwork allowing warm and cool air to reach spaces in historic buildings without disturbing architectural finishes and structure.

Supplier of mini-duct system: has small flexible hoses for retrofitting HVAC systems into old buildings.