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 The White Project 
 
 
 
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Very good and prompt responses.
  
 
  
 
 
 
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 Belinda Goode 
 
 
 
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Thank you David for your prompt and efficient service.
  
 
  
 
 
 
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 Jenna Skelton 
 
 
 
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We engaged Dave at Sustain a Space again today. He was fast and efficient and rectified an admin error on our side. Very pleased with this business
  
 
  
 
 
 
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 Usman Mahmood 
 
 
 
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My experience with David Barham has been exceptional. He is consistently professional, responsive, and goes above and beyond to ensure a high standard of customer service.
  
 
  
 
 
 
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 Projects Steel Frame Designs 
 
 
 
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We love working with these guys. David is very knowledgeable and passionate about his work.
  
 
  
 
 
 
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 threadgold architecture 
 
 
 
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Thanks David for your prompt professional advice.
  
 
  
 
 
 
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 Alita Monkhorst 
 
 
 
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David from Sustainaspace is a fantastic communicator, and efficiently delivers his assessments. Sustainaspace are up to their third energy assessment for me & I highly recommend them. Alita
  
 
  
 
 
 
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 Luke Wallrodt 
 
 
 
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We use David at Sustainaspace all the time for our energy ratings and he’s always been great to deal with. Quick turnaround, clear communication, and makes the process easy. We’ll definitely keep using him and would recommend to others.
  
 
  
 
 
 
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 Tynan Luzuk 
 
 
 
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David and his team were proactive in working with us to refine values and achieve a cost effective functional design.