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Validation, Verification and Integrity Testing

GeoShield – Global Leaders in Validation, Verification, Integrity Testing & On‑Site Quality Assurance

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For more information on our independent validation, verification, and integrity testing services, download our brochure or contact our team for expert guidance.

GeoShield – Independent. Qualified. Globally Trusted.

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Welcome to GeoShield, a fully independent international authority on integrity testing and verification across several sectors. With decades of experience, we deliver industry‑leading quality assurance services across Hazardous Ground Gas Protection, Radon Protection, Attenuation and SuDS tanks, Waterproofing Systems and Flat Roof Integrity Testing – ensuring compliance, safety and long‑term performance for construction projects across the UK and Internationally.

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“Val was very helpful and proactive in pointing me in the right direction. This was then handed over to Mick who came to site and advised on the situation. Mick went above and beyond and went out of his way to make sure our project could get back on track and was extremely helpful all the way through.”

A.K

“I would highly recommend GeoShield to anyone looking for reliable and efficient gas barrier verification services. A genuinely great company to work with.”

M.S

“GeoShield were more than capable of meeting our demands and without hesitation carried out on-site inspection as required.”

A.H

“Nigel was patient with us and assisted us finishing off a corner that we noticed was incomplete when he was inspecting, really going above and beyond for us! Next time we undertake this work, I’ll be hoping we get Nigel come to verify!”

K.S

“The GeoShield inspectors were on site for 2-3 hours, but then carried out the necessary testing. Problems with the installation discovered by the inspector were highlighted, assistance from GeoShield was given.”

N.K

“GeoShield provided prompt guidance, site visits, practical installation advice and detailed inspection reports, while remaining flexible with inspections and thoroughly testing completed membranes onsite.”

C.P

“I highly recommend GeoShield Ltd. They are an excellent company to work with. Their communication is great from start to finish – always clear, prompt, and professional – which makes a huge difference on any project.”

J.C

“Great company to work and deal with. Good communication and ability to react as challenges present themselves on site. John Cornish has been a big help on our project, always contactable, practical and reliable. Will use again and would definitely recommend.



L.S

“Lee was professional and approachable throughout the visits. He clearly explained the inspection process, highlighted key points to be aware of, and ensured everything was checked thoroughly.”

L.S

“Communication was straightforward, and Lee made sure any questions were answered clearly.”

Lee S

Man working on foundation floor | Trafford Golf Centre Project | Geoshield

“Liam was professional, punctual and knowledgeable. He talked me through everything that was going to happen and again whilst he was undertaking the testing.”

J.H

Liam

“Throughout our 4 year professional relationship, the Geoshield team consistently demonstrated a high level of integrity, reliability, and professionalism.”

N.B

Liam

“GeoShield’s ability to manage complex designs, deliver site based teams to validate, sets them apart from the rest.”

B.N

Detailed schematics |system design | Geoshield

“Three inspections were all done by Nigel and I couldn’t speak highly enough of him if I tried! He called ahead to confirm when he would be with us and was prompt, he was meticulous in his testing while also offering the same help and advice.”

N.W

Man performing radon inspection and verification services | Integrity testing | Geoshield

Specialist Experience Across
Multiple Disciplines

We are proud founder members of the British Verification Council (BVC) and active members of the Radon Council, CIRIA, British Geomembrane Association (BGA), Concrete Society, Home Builders Federation (HBF), RAWTA and LRWA.

GeoShield also holds ISO 9001 and ISO 14001 certification, along with Construction Line Gold, reflecting our commitment to exceptional standards and environmental responsibility.

Our On‑Site Quality Assurance and Warranty Support teams provide expert oversight for:

–  Radon Protection Systems
–  Hazardous Ground Gas Protection Systems
–  Subterranean Waterproofing (Types A, B & C)
–  Green & Blue Roof Waterproofing
–  Attenuation Tank (SuDS) Liners

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Man performing radon inspection and verification services | Integrity testing | Geoshield

Training and Competency

GeoShield is committed to raising competency levels across the construction sector. Our team hold NVQ2, NVQ3, NVQ4, CL:AIRE SGPV/TGPV and CSSW qualifications and undertake regular internal training.

As a business we hold ISO 9001, ISO 14001 and Constructionline Gold accreditation.

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