Matthew was great from the start. Very helpful with advice on the Icenyne Spray foam for our loft conversion and putting together information for building control. Always quick to respond to emails & calls and turned up on time. The Icenyne foam is incredible. Even though our windows arent fitted in the loft (ie there are 2 big holes! ) the house has been transformed. Its been 0 degrees for the last few days outside and the heating has hardly been on. We had our loft and sub floor sprayed. Definitely worth speaking to Green Horizon Solutions.