UNDERPINNING
Professional underpinning solutions to stabilise and strengthen foundations affected by subsidence, using modern resin injection and traditional methods.
WHAT IS UNDERPINNING?
Underpinning is the process of strengthening and stabilising the foundations of a building. When subsidence causes foundations to move or sink, underpinning provides additional support beneath or beside existing foundations to prevent further movement and restore structural integrity.
HOW IT WORKS
Modern underpinning techniques include resin injection, which pumps expanding geopolymer resin beneath foundations to fill voids and consolidate weak soils. Traditional mass concrete underpinning involves excavating beneath foundations in stages and filling with concrete. The method chosen depends on soil conditions, access, and the severity of movement.
KEY BENEFITS
OUR PROCESS
Site Assessment
Detailed structural survey and ground investigation to determine the cause and extent of foundation movement.
Solution Design
Engineering design tailored to your property's specific geology and structural requirements.
Preparation
Small injection holes drilled through floors or externally at foundation level — minimal disruption to daily life.
Resin Injection
Expanding geopolymer resin injected under controlled pressure to fill voids, consolidate soil, and lift foundations.
Verification
Real-time monitoring confirms ground improvement and foundation stabilisation during the process.
Completion
Holes sealed, site restored, and certification provided for insurance and future property transactions.
IDEAL FOR
FREQUENTLY ASKED QUESTIONS
UNDERPINNING NEAR YOU
Find underpinning services in your local area across Bristol and the surrounding region.