Specialist contractors and service providers we work alongside across Central London. Every partner is vetted, professional, and committed to the same high standards as 3COL.
Become a Partner
CHM Exterior Services is a trusted provider of professional exterior cleaning services for residential and commercial properties across London. Specialising in pressure washing, exterior house cleaning, and gutter cleaning, they deliver dependable service, high standards of workmanship, and excellent customer care.
Visit Website ?Are you a specialist contractor operating in Central London? Join our Associate Partner network. We refer clients to trusted partners and feature your business on this page - free visibility, no fees, just mutual growth.
We work with electricians, plumbers, roofers, decorators, cleaners and other specialist trades across W1, SW1, EC1, EC2, WC2, SE1, SW3 and E14.