Demolition and site preparation

Demolition is sequenced by load path. Removing an element that is carrying more than the drawings suggest — because of a later alteration, a change of use, or an original construction that does not match the record — is how demolition incidents happen. The survey comes before the sequence, and the sequence before the plant arrives.

Scope

• Structural demolition of buildings, frames and structures
• Partial and selective demolition within occupied or operating premises
• Internal strip-out and soft demolition
• Concrete coring, sawing and controlled cutting
• Hydraulic breaking and rock removal
• Site clearance, grubbing up and obstruction removal
• Excavation, loading, hauling and disposal
• Formation preparation, levelling and compaction

Controlled removal inside live premises

Partial demolition next to operating plant or occupied space is the harder case. Noise, vibration, dust and debris all have to be contained, the remaining structure has to stay stable and serviceable throughout, and services running through the area have to be identified and isolated or diverted before anything is cut.

• Structural survey and temporary propping where the sequence requires it
• Service identification, isolation and diversion before cutting
• Dust suppression and debris containment
• Vibration limits agreed where neighbouring structures are sensitive
• Concrete coring and sawing where breaking is not acceptable

Plant

Hyundai 220LC-9S and Fiat Kobelco excavators with rock breaker and backhoe attachments, supported by the sheet piling and dewatering fleet where the site needs retention or groundwater control before work can proceed.

Standards we work to

• BS 6187
• BS 5975
• BS EN 13001
• ISO 45001:2018