Ground gas protection, to BR211, BR212 and BR414.
Guidance and estimates for protection against Radon Gas, CO2, Methane Gases and Hydrocarbons on new builds or existing properties, using BBA Certificate products, with third party certification arranged where required.
Bensleys can offer guidance and estimates for ground gas protection, including protection against Radon Gas, CO2 and Methane Gases and Hydrocarbons, as necessary on all new builds or existing properties. All works are carried out utilising a suitable BBA Certificate product, and works are carried out to current British Standards including BR211 and BR212, also referring to BR414. If necessary, we can also arrange third party certification as required.
Gas Type
Radon
A naturally occurring radioactive gas that can accumulate in buildings on affected ground, requiring specified protection measures.
Gas Type
Methane & CO2
Commonly associated with made ground, landfill, or organic material in the soil, and a frequent condition of planning consent on such sites.
Gas Type
Hydrocarbons
Found on sites with a history of industrial or fuel-related use, requiring protection measures suited to the specific contamination identified.
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New Build
Ground gas protection is frequently a planning condition on new build schemes, particularly on brownfield or previously developed sites. We can specify and install the protection measures a site investigation identifies as necessary, and arrange third party certification where a building control body or warranty provider requires it.
Existing Properties
Where an existing property is found to be on affected ground — through a site investigation, environmental search, or a change of use application — we can retrofit appropriate protection measures to current standards.
Review the site investigation
We work from the gas risk assessment already carried out for the site, or advise on what's needed to obtain one.
Specify the protection measures
Membrane, venting and any additional measures are specified to current standards, matched to the gas types and risk level identified.
Install with BBA-certified products
Installation is carried out using suitable BBA Certificate products, to BR211, BR212 and BR414 guidance.
Certification
Where required by building control or a warranty provider, we arrange third party certification of the completed installation.
Other Services
Beyond ground gas protection
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Find out moreFrequently Asked Questions
Find clear answers for Ground Gas Protection.
What does ground gas protection cover?
What standards and guidance does ground gas protection follow?
Can third party certification be arranged?
Is ground gas protection only needed for new builds?
Working on affected ground? Let's talk protection measures.
Guidance and estimates for new build or existing properties, with third party certification arranged where needed.