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Posted on GoogleTrustindex verifies that the original source of the review is Google. Very good and prompt responses.Posted on GoogleTrustindex verifies that the original source of the review is Google. Thank you David for your prompt and efficient service.Posted on GoogleTrustindex verifies that the original source of the review is Google. 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 businessPosted on GoogleTrustindex verifies that the original source of the review is Google. 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.Posted on GoogleTrustindex verifies that the original source of the review is Google. We love working with these guys. David is very knowledgeable and passionate about his work.Posted on GoogleTrustindex verifies that the original source of the review is Google. Thanks David for your prompt professional advice.Posted on GoogleTrustindex verifies that the original source of the review is Google. 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. AlitaPosted on GoogleTrustindex verifies that the original source of the review is Google. 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.Posted on GoogleTrustindex verifies that the original source of the review is Google. David and his team were proactive in working with us to refine values and achieve a cost effective functional design.