Expert answers to common questions about cavity wall insulation, cavity wall extraction, loft insulation and related topics.
Yes — in some circumstances it can. Find out why, what the warning signs are, and what to do if you're affected.
Read guide →Seven warning signs — including damp patches, cold spots, mould and musty smells — and what each one means.
Read guide →Typical costs by property type and the factors that affect the price. We provide fixed quotes after survey.
Read guide →Yes — all types can be removed. How the process works for different insulation types and when removal is necessary.
Read guide →A camera inspection of your cavity wall. What it shows, what happens during the survey and when you need one.
Read guide →Wet insulation is a serious problem. How it gets wet, what happens to it, effects on your home and what to do.
Read guide →Costs by property type, plus details on government funding and what affects the final price.
Read guide →270mm is the current recommended minimum. How to check what you have, how to top up, and what types are available.
Read guide →Zest can inspect the cavity and advise whether the insulation can remain, requires remedial work or should be extracted.
