Alexander Swan.
Can't rate them highly enough.
Highly professional, tailored policies for window cleaners, with courtesy vehicles WITH REACH & WASH SYSTEMS installed.
This is what it costs me for a 2009 VW Caddy Van with a 400 Litre Pure2o System installed:
Commercial Van Motor Insurance : £340
WFP System with Poles + Ancillaries : £150 (Insured amount £5k)
Replacement Vehicle Cover : £85
Legal Expenses Cover : £4.72
Total : £579.72
Worth every penny IMO.
And by the way, most mainstream insurers (eg admiral, aviva, etc) require you to tell them if you are carrying a water tank, otherwise your insurance is invalid. It must actually be in the policy wording, not just told to you over the phone.