Excellent salesman, not pushy and even explained that If we did not go with his firm to ensure for safety reasons to go for certain types of doors. Great unbiased advice. Very pleased with the windows and door. We had a teething issue after installation where a hole had not been drilled what is great about this company is that they have a couple of fault fixing engineers and nothing was too much trouble, all sorted and superb service. Actually this company should offer this as a sales feature and send an engineer a few days after installation to quality control everything, I think it would be well received from their customers.