Business Details
Expert Basement Construction & Waterproofing Services
Abtech is a specialist basement company with over 45 years of industry experience, offering construction and waterproofing solutions for below-ground structures. Our expertise spans retrofit basement conversions, new build basement structures, and structural waterproofing, serving both residential and commercial clients across London and the South of England. Our team of highly skilled professionals utilises modern techniques and products to deliver durable, dry environments tailored to client needs. We pride ourselves on being specialists in basement engineering, with a focus on innovation, quality, and safety. Our projects range from residential extensions to complex commercial developments, ensuring compliance with industry standards and client satisfaction.With accreditations from Delta Certified, CHAS, and CGS insurance-backed guarantees, we provide reliable, long-term solutions. Our directors, David Hilton and David Greentree, bring over 50 years of combined experience in ground engineering, ensuring technical excellence and project success. We operate from modern facilities in Farnborough, Hampshire, and have completed projects in areas including Kensington, Wimbledon Park, and the Channel Islands. Our commitment to transparency, technical innovation, and customer service has established us as a trusted partner in basement construction. We work closely with clients to transform underutilised spaces into valuable living or commercial areas, enhancing property value and functionality.
Services
Retrofit Basements
New Build Basements
Structural Waterproofing
Piled Solutions
Basement Conversions
Highlights and features
- We have over 45 years of experience in basement construction and waterproofing.
- Our team consists of certified experts with extensive training in ground engineering.
- We offer comprehensive solutions for both retrofit and new build basements.
- We utilise modern products and techniques for long-lasting, dry environments.
- We operate across London, Oxford, and the South of England with a proven track record.
Associations and certifications
- Delta Certified
- CHAS
- CGS
What people say
Expert technical solutions
Reliable service
Transformative results
Professional team
Long-lasting quality
Services
Retrofit Basements
Retrofit basements involve converting existing under-ground spaces into functional areas. We specialise in underpinning, excavation, and waterproofing to create dry, habitable environments. Our solutions address structural challenges while ensuring compliance with safety standards.
New Build Basements
New build basements provide additional living or commercial space during property development. We handle piling, drainage, and reinforced concrete structures, ensuring seamless integration with above-ground construction. Our designs prioritise durability and future usability.
Structural Waterproofing
Structural waterproofing prevents damp in basements using advanced membranes and pumping systems. We employ Delta-certified techniques to guarantee dry environments, including dual sump pumps and battery backup systems for reliability.
Piled Solutions
Piled solutions involve constructing contiguous or secant bored piles for basement support. Our sister company, Geobond, provides bespoke retaining walls using compact rigs, ensuring stability in confined spaces and challenging ground conditions.
Basement Conversions
Basement conversions transform existing cellars into usable spaces. We address structural integrity, waterproofing, and ventilation, creating areas suitable for entertainment, gyms, or additional bedrooms while adhering to building regulations.
People
David Hilton
Director
David Hilton has over 25 years of experience in ground engineering and basement construction. As a director at Abtech, he oversees technical innovation and project delivery, ensuring compliance with industry standards.
David Greentree
Director
David Greentree brings extensive expertise in structural waterproofing and basement design. With over 25 years in the field, he focuses on client consultation and technical problem-solving for complex projects.
Questions
What areas do Abtech Basements serve?
We operate across London, Oxford, and the South of England, including West London, Fulham, Chiswick, and Chelsea.
What types of basement projects do you handle?
We specialise in retrofit conversions, new build basements, structural waterproofing, and piled retaining walls for residential and commercial properties.
Are your services insured and accredited?
Yes, we are Delta Certified, CHAS-approved, and provide CGS insurance-backed guarantees for all our work.
How long does a basement project take?
Project timelines vary based on complexity, but we prioritise efficient delivery using in-house piled solutions and top-down construction techniques.
Can you waterproof an existing damp basement?
Yes, our structural waterproofing services use Delta-certified membranes and dual sump pumps to resolve damp issues permanently.
Do you offer design-phase consultations?
Yes, we provide technical advice during the planning stage to ensure feasibility, compliance, and optimal use of basement space.
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