I used Allcott Associates as their reviews were excellent. It was easy to get a quote on line although it took a bit longer than we expected to get the survey done but that was because they were booked up for several weeks and I left it for a few days before booking the survey. However that was not a problem and I am glad we waited rather than go to someone else just because they could do it quicker. The report arrived very quickly and was very detailed with supporting photographs and recommendations. I have no hesitation in giving them a 5 star rating and I am very happy recommending them. That were very professional and worth what we paid. Just remember to book the survey as early as you can to avoid disappointment.