Instant
answers. Fixed
prices. No
guesswork.
Clear, fixed pricing. Forensic answers. Search any question or browse by category for evidence-backed, up-to-date information—no uncertainty.
Fixed answers. Zero uncertainty.
Transparent pricing, proven methods, and evidence-backed answers—clarity for every question.
No estimates. Fixed prices.
Every quote is precise, based on property data. No hidden fees or guesswork—just clear, upfront costs.
Evidence-backed, concise responses
Each answer is concise, linked to proof, and reviewed monthly. Facts only, with supporting evidence.
Verified trust and compliance
£5m insurance, DBS-checked staff, and compliance badges. Assurance is standard in every service.
Why This FAQ Exists
This isn’t just a list of questions. It’s a forensic archive of answers — built to eliminate ambiguity, prove our process, and protect your decision-making. Every answer is backed by evidence, every claim is documented, and every method is transparent.
HOW IT WORKS
No guesswork. Just clear answers.
PRICING
Fixed, instant pricing
Get property-based prices instantly. No estimates, no hidden fees—just transparent, upfront costs for every service.
Methodology
Forensic, proven process
Every service follows a strict protocol: de-ionized water, soft wash, biocide, and digital verification. No shortcuts, no ambiguity.
Trust & insurance
Insured and verified
£5m public liability, DBS-checked staff, and Rain Guarantee. Every service is covered and documented for your peace of mind.
Evidence & compliance
Proof on every job
Receive before/after media, compliance docs, and instant access to evidence. All work is logged and verifiable.
Categories, search, and evidence links
Use the search bar to find specific answers, or browse by category. Each answer includes links to evidence, compliance documents, and service protocols. If your question isn’t listed, visit our Contact page or submit a query through the Glass Box.
FAQ: instant, evidence-backed answers
Zero guesswork. Only facts.
Forensic answers to your top questions. Transparent methods, fixed prices, and proof—no jargon, no uncertainty.
We reject estimates. COSMOS returns fixed, penny-perfect prices based on your property data and requirements. No hidden fees, no rounding. Every quote is documented—see our pricing methodology for full details.
All technicians hold £5m Public Liability insurance and are DBS-checked before every job. Credentials are verified and available on request. Proof of insurance and DBS status can be provided for every visit.
Every job includes before-and-after photos or wireless camera footage for your review. This ensures transparency and quality control. Evidence is provided via secure link after service.
Rain is not dirt. Our 0.00 PPM de‑ionized water and Rain Guarantee ensure pristine results in any weather. If rain impacts your finish, we return at no cost. See our Rain Guarantee for evidence.
We use a Soft Wash protocol: manual moss removal, biocide treatment, and de‑ionized water for a residue-free finish. No harsh chemicals or high-pressure tools on delicate surfaces. Method details and safety data are available on request.
We cover the UK with local teams in major regions. Enter your postcode to confirm availability. For commercial or remote sites, contact us for a tailored assessment.
Get clear answers in seconds
This FAQ hub is designed to give you straight, reliable information without the guesswork. Whether you’re exploring pricing, safety, methods, or service options, each answer is crafted to be transparent, practical, and easy to act on. Think of it as your shortcut to clarity — no sales fluff, no confusion, just the facts you need.