


GDPM are leading specialists in Substructure Waterproofing and Ground Gas Protection
Our services
GDPM are able to offer a complete end-to-end package, including consultancy, project management, independent design detailing, on site installations and verification services. Whether you need support from the earliest planning stages or a fully managed delivery, we’re here to make your project run smoothly and safely.

Consultancy
With over 20 years of specialist project management experience, we are able to provide clear guidance to ensure your project starts on solid ground.
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Site-specific advice
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Independent design detailing
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Project management
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Buildability & installation guidance​​
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Gas membrane verification

Gas Giant
Our sister company, Gas Giant provides a flexible option for clients who need dependable work completed quickly and affordably, using the same specialist knowledge.
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Gas Giant are also able to provide cost effective Ground Gas Verification services and may be able to fix minor defects at the time of inspection.
About us.
GDPM are leading specialists in Containment Solutions, Substructure Waterproofing and Gas membrane installations across the UK. With over 20 years of experience, we deliver reliable, high-quality and fully certified services for construction, civil engineering and commercial projects.
As approved installers for major manufacturers, we ensure every system meets our strict quality standards.
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