These links are for guides and suppliers i recommend:
https://local.which.co.uk/advice/cost-price-information-painters-decorators - Which? dated but sometimes useful price guide
http://www.ladderstore.com/loft_ladder_measure_up - How to measure for your loft ladder
threebestrated.co.uk/handyman-in-manchester - Useful tradesmen in your area. (In case i'm busy)
homexchangepa.com/handyman/ - Ever wondered what kind of jobs a handyman does or other tradesmen?
https://www.angelplastics.co.uk/ - Exterior plastics and trim supplier
https://www.purlfrost.com/ - For window decals
www.hclfasteners.com/ - Useful industrial strength fasteners
www.stockportfencing-ltd.co.uk/ - Sometimes easier to ring when you know what you want
https://www.wallshelvestore.co.uk/ - Good for made to measure MDF boards, melamine shelves etc.
https://www.locksonline.com/ - Useful work and office fittings