Roof cleaning, coordinated via our trusted partner
Roof Cleaning in London

We coordinate roof cleaning and treatment for commercial and residential buildings across London, removing moss, algae and organic build-up to improve appearance and help protect the roof covering. Optimum scopes the work and oversees delivery, while the specialist cleaning is carried out at height by our vetted external partner rather than our in-house teams.
✓ Fully insured✓ Vetted partner✓ Single point of contact








What our roof cleaning covers
Roof work is specialist, work-at-height cleaning delivered through a vetted external partner that we coordinate on your behalf, so you deal with Optimum while the right specialist works safely at height.
- ✧Moss & Algae Removal. Removal of moss, algae and lichen from tiles, slates and roof coverings, clearing build-up that traps moisture and leaves a roof looking neglected.
- ✧Soft Washing & Treatment. Gentle, low-pressure soft washing and biocide treatment suited to the roof covering, helping to slow the regrowth of moss and algae after cleaning.
- ✧Gutter Line & Valley Clearing. Clearing of debris from gutter lines, valleys and roof junctions where moss and leaves collect, helping rainwater drain freely off the roof.
- ✧Flat & Pitched Roof Cleaning. Cleaning of both flat and pitched roofs using access and methods matched to the structure, keeping the covering clean without unnecessary foot traffic on the roof.
- ✧Roof Condition Observations. Notes on any obvious issues spotted during cleaning, such as slipped tiles or blocked outlets, so you can arrange any repairs through the appropriate trade.
Every clean is scheduled, tracked and quality-checked through our CleanManager platform, with photographic evidence and completion reporting available on request.
DBS-checked operatives. COSHH compliant. Method statements and RAMS provided where required.
How We Work
Roof cleaning is work at height, so we scope each job carefully and coordinate delivery through our trusted partner, keeping you with a single point of contact from enquiry to sign-off.
01. Enquiry
You tell us about the roof, the building and what you want to achieve. We talk through the roof type, access and any known issues so we understand the job before taking it further.
02. We Scope & Coordinate With Our Partner
We scope the work, arrange a site assessment where needed and brief our vetted partner on the roof covering, the right method and safe access at height. We confirm insurance and site-specific RAMS so everything is in place before work starts.
03. Partner Delivers, We Oversee
Our trusted partner carries out the roof cleaning and any treatment to the agreed scope, working safely at height, while Optimum manages the schedule and oversees delivery on your behalf. You continue to deal with us throughout.
04. Sign-Off
We review the finished work against the agreed scope, pass on any condition observations and confirm you are happy before the job is closed. Completion records and documentation are available on request.
Who is it for?
We coordinate roof cleaning for owners and managers who want a clean, well-maintained roof without sourcing and managing a specialist working-at-height contractor themselves.
- ✧Managing agents and facilities teams responsible for building roofs
- ✧Commercial premises where a moss-covered roof affects appearance
- ✧Landlords and property owners maintaining blocks and estates
- ✧Residential buildings with visible moss or algae build-up
- ✧Sites wanting to slow regrowth and keep the roof covering in good condition
As a Living Wage Employer focused on local employment, working with Optimum supports the social value and ESG commitments increasingly expected across commercial and public-sector contracts.
Frequently Asked Questions
Ready to get started?
Get in touch for a free, no-obligation quote. We respond quickly and can arrange a site visit for larger or more complex projects.


