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...Health and safety executive domestic basement construction projects what you need to know as a busy builder these are the essential before work starts tips should follow even if n appoint competent temporary works don t directly employ people engineer design propping shuttering working on your site other support needed prevent collapse of any excavation or building constructing underneath devise sequence that property is specialised high risk includes when how will install can catastrophically affect stability required existing buildings identify provide maintain project architect must safe access for plant personnel detailed plans finished removal excavated material ground water use together decide area confined space with knowledge conditions forced ventilation necessary make sure where underground services planned undertaken safely this protect them identifying such trench supports arrangements ensure according responsibility s instructions be by all sides every person normally know...