Need window cleaning for house windows in UK

I'm looking for a reliable window cleaner to wash all the windows of my semi-detached house. There are 8 standard upstairs and downstairs windows, plus a skylight in the kitchen. I’d prefer streak-free results and use of safe cleaning products. Access is straightforward from the driveway, and I can provide a stable ladder if needed. Please include your usual cleaning approach, whether you use a sash brush or squeegee, and any health or safety considerations. I’m hoping to schedule a session on a weekday morning and would appreciate a competitive quote.