I highly recommend Solar Crest - they did an amazing job for me. We're renovating a London split level terrace. There's tons of structural steal and I didn't want to lower any ceilings. It was so complicated DR Ventilation pulled out at the last minute. The whole build was stalled until Eliot and Richard turned up and fixed everything. Solar Crest were on site in days and managed to source units when even the manufacturer had run out! They squeeze units and ducts in to spaces the architect thought would be impossible. They completed a perfect install in under 5 days! We couldn't have hoped for more. So glad we found them. They really knew what they were doing and really worked hard to get everything just how I wanted it. Thanks!