Structural solutions that guarantee peace of mind

Protecting your home from damp

Specialist timber treatments to protect your most valuable asset

Waterproofing homes for over 50 years





Welcome to the World of Accredited Wykamol Users

Our aim is to provide the best possible service, advice and solutions to protect your home, after all we’ve been preparing and protecting properties for over 50 years.

The Assocation of Accredited Wykamol Users or AAWU was formed in 1963; initially from the former contracting branches of Wykamol (Richardson & Starling Ltd.) and other high quality independent remedial treatment specialists. Since then it has grown into an active organisation of over 80 members with regular meetings and training seminars all designed to improve standards, working practices and ensure that homeowners get the best possible service and solutions.

The common feature of all association members is that they have been carefully vetted and approved for standards of surveying and workmanship by The Wykamol Group, so when you select an association member to carry out work on your property you can be confident in the knowledge that they won’t let you down – their knowledge, workmanship and standards of professionalism is second to none.


We strive for 100% customer satisfaction – so when our customers are happy, we are happy.

Basement waterproofing

Basement Waterproofing

Basement or Cellar Waterproofing is the application of a covering to masonry usually, but not necessarily, below ground, to prevent or control penetrating dampness or water ingress.

Bed Joint Reinforcing Drilled Back Into Party Wall

Structural Repairs

AAWU members can offer a range of services in the area of structural repair & stabilisation of masonry that are both highly effective, non-disruptive and economical compared with rebuild options.

Woodworm damage

Timber Treatment

These brief descriptions of common timber decay species listed below may help you to ascertain whether you have a problem which requires timber treatment of repair by your AAWU specialist.

Wykamol – Preston

Damp Problems

Rising damp is a common problem in older properties either because no damp proof course (DPC) was provided at the time of building, or because a physical membrane has failed or been ‘bridged’.


Choose an AAWU member who can give you professional advice and excellent service as well as long-term confidence in effective treatments.