Cavity Wall Insulation Problems: What Issues Can Occur?

cavity wall insulation problems are uncommon, but not unheard of
(Image credit: Knauf)

Cavity wall insulation problems are usually the preserve of older homes, which have had insulation retrofitted, rather than new builds. However, it can cause issues that affect your home's energy efficiency and warmness, so it's something you'll want to get sorted. 

In the worst cases, you'll need to have cavity wall insulation removed to solve your problems, a process which can be costly. 

Tim Pullen

Tim is an expert in sustainable building methods and energy efficiency in residential homes and writes on the subject for magazines and national newspapers. He is the author of The Sustainable Building Bible, Simply Sustainable Homes and Anaerobic Digestion - Making Biogas - Making Energy: The Earthscan Expert Guide.


His interest in renewable energy and sustainability was first inspired by visits to the Royal Festival Hall heat pump and the Edmonton heat-from-waste projects. In 1979

this initial burst of enthusiasm lead to him trying (and failing) to build a biogas digester to convert pig manure into fuel, at a Kent oast-house, his first conversion project.


Moving in 2002 to a small-holding in South Wales, providing as it did access to a wider range of natural resources, fanned his enthusiasm for sustainability. He went on to install renewable technology at the property, including biomass boiler and wind turbine.


He formally ran energy efficiency consultancy WeatherWorks and was a speaker and expert at the Homebuilding & Renovating Shows across the country.