Radon is a natural radioactive gas, originating from uranium which occurs in many types of rock. All water and air contains some radon, though levels are normally much too low to be of concern. For many years it has been recommended that, if the concentration of radon in indoor air exceeds the Action Level of 200 becquerels per cubic metre, steps should be taken to reduce it.
It is now recognised that some private water supplies contain levels of radon which should also be controlled. However, it is important to recognise that radon in water almost certainly presents a smaller public health hazard than radon in air, both in term of the numbers of people exposed to high levels, and in terms of the risks to the most exposed individuals. People living all their lives at the Action Level run the risk of a few percent of developing lung cancer. On average, about one in thirty people exposed for a lifetime at the Action Level would be expected to develop lung cancer.
New research suggests that around 1000 people may die each year as a result of radon, with smokers at a greatly increased risk.
Marshall's undertake five types of residential property surveys.
We cover Oxfordshire and West Berkshire, along with adjoining areas of Hampshire, Buckinghamshire, Gloucestershire and The Cotswolds.
Marshalls Chartered Surveyors are RICS Registered Valuers highly experienced in the local property market.
We undertake residential valuation instructions for all purposes, including shared ownership and Help to Buy. We also undertake expert witness work and can advise upon lease extension and enfranchisement valuations.
Marshalls were established in 1979 and can offer great local knowledge and experience of all types of building.
We might not be the cheapest, but you can be confident that we are the experts in our field.
In addition to residential surveys and valuations, Marshalls offer a full range of commercial services, including commercial surveys, schedules of condition and dilapidations advice on behalf of both landlords and tenants.
Note: we do not undertake commercial valuations.
Marshalls offer a full range of specialist Party Wall services, working for both building owners and adjoining owners.
If you have received party wall notices from your neighbour or you are planning to carry out works, we can advise you of your options.
A lease is a wasting asset and as the remaining term becomes shorter, a residential property may be difficult to sell or mortgage. You may need to consider a lease extension or possibly a freehold purchase.
A range of pages offering useful advice on various survey, valuation and general property matters.
From asbestos and bats through to toxic mould and woodworm, we hope this general property advice is useful.
Marshalls have offices in Oxford (01865-863020) and Newbury (01635-529777).