How to identify and treat dry rot in your home — plus how to prevent it

red and brown dry rot spreading across wooden floor
Left untreated dry rot can cause structural damage to timber (Image credit: Taviphoto/Getty Images)

Discovering that the property you want to buy is afflicted by dry rot can be enough to induce a panic attack in all but the most optimistic of home buyers. 

To make matters worse, at the slightest suspicion of damp and fungal decay, mortgage lenders commonly insist on specialist reports that prescribe expensive remedial treatments, some of which our expert believes do more harm than good.  

Ian Rock

Chartered surveyor Ian Rock MRICS is a director is Rightsurvey.co.uk and the author of eight popular Haynes House Manuals, including the Home Extension Manual, the Self Build Manual and Period Property Manual.


Ian is also the founder of Zennor Consultants. In addition to providing house surveys, Zennor Consultants provide professional guidance on property refurbishment and maintenance as well as advising on the design and construction of home extensions and loft conversions, including planning and Building Regulations compliance.


Ian has recently added a 100m2 extension to his home; he designed and project managed the build and completed much of the interior fit-out on a DIY basis.