Learn about the materials, methods, and costs of blown-in insulation, which can keep your home comfortable and your utility bills low.

Wall Insulation Cost Factors The construction or remodeling that you’re doing will determine your insulating options and the cost to install wall insulation.

Older homes with solid external walls tend to leak warmth straight through masonry. Internal wall insulation provides a solution.

A question appeared recently in your column about insulating an early 1900’s house from the inside. Your answer concerned the use of foam insulation and the application of rigid foam board to ...

We asked our builder — the house is only 2 years old — and he told us he insulated the foundation walls, but he refused to insulate the perimeter wood joists. He told us the insulation would ...