David responded quickly to our call for help with a non-locking pvc patio door. He understood what would be required, predicted a short call out and gave a clear price. When he arrived he sorted out the problem swiftly and explained the problem. Charges were completely in line with quote. Very trustworthy and not looking to inflate the job. Threw in some advice for free on the best replacement options. Will be using him again with any window problems, highly recommended.