The experience with Thermaframe/Sutton Windows has been excellent throughout, from pre-sales all the way to post-sales. David was very helpful and patient with our multiple queries – he is highly knowledgeable and helped us make decisions that resonated with our tastes and budget. Mark Petley from post sales was also very kind, helpful and quick to resolve any outstanding issues. All the indivduals involved in the steps in between were equally transparent and professional – highly recommended.