About GASI
A new Richmond upon Thames cleaning company, taking bookings now, first cleans from 21 December 2026.open since 21 December 2026.
- The same cleaner every visit wherever possible
- All products and equipment included; no booking fee; no parking charge; the price shown is the price paid
- A written checklist before every job; photo report on End of Tenancy, Deep Cleaning and Short-Let Changeovers
- Free re-clean guarantee (conditions apply)
- Pay nothing now: your card is charged after the clean
- A real person on phone and WhatsApp; we aim to reply within 2 hours
- DBS-checked cleaners
Why GASI
GASI Cleaning Co. is a new cleaning company based in Richmond upon Thames, taking bookings now, first cleans from 21 December 2026.open since 21 December 2026.
Finding a cleaner you can trust shouldn’t come down to luck. Too often it does: someone great one week and gone the next, prices that change on the day, and no one to call when something’s missed.
So we built GASI around you. The same cleaner wherever possible. A checklist agreed before we start. Prices you see before you book, and nothing to pay until the clean is done. And if something isn’t right, we come back and put it right.
Your space says a lot about you. We make sure it says the right thing.
In practice, that means you don’t need to be home: leave keys in a lockbox, with a concierge, or hand them over. A real person answers on phone and WhatsApp, and we aim to reply within 2 hours during contact hours. There’s no booking fee and no parking charge.
Every clean follows a written checklist, and you can read the one for each service on our checklists page.
Homes, workplaces, made easy
We clean homes
Regular Cleaning, One-Off Cleaning, Deep Cleaning and End of Tenancy, plus Specialist & Add-ons.
We clean workplaces
Office & Business Cleaning, Short-Let Changeovers and Serviced Apartments, planned around you.
Careful, checked, consistent
- Trained on the GASI checklist. Every cleaner follows the same written checklist, so the standard never depends on who comes.
- Checked before their first clean. Every GASI cleaner has a right-to-work check and a DBS check before their first clean.
- The same cleaner wherever possible. Someone who knows your home and how you like it.
- Clear, friendly communication. A photo report on End of Tenancy, Deep Cleaning and Short-Let Changeovers, and we tell you about anything we notice.
Four simple steps
Book or ask
Book online or ask for a quote.
Agree the checklist
We agree the checklist with you.
We arrive ready
A trained, checked cleaner arrives with everything needed.
Checked and guaranteed
You get a photo report where it applies, backed by our free re-clean guarantee.
What we stand for
GASI’s cleaners are DBS-checked: every cleaner has a DBS check before their first clean.
Professional
Courteous, prepared and respectful of your home or workplace from the moment we arrive.
Detail-driven
The edges, corners and surfaces that are easy to miss are exactly where we look first.
Reliable
We turn up when we say we will and deliver the same standard visit after visit.
Customer-first
We listen to how you use your space and shape the clean around what matters to you.
Our service area
These are the areas we clean every day. Nearby areas are by request, and larger jobs further afield by arrangement. See where we clean.
- TW1Twickenham and St Margarets
- TW2Twickenham and Whitton
- TW9Richmond and Kew
- TW10Richmond Hill and Ham
- TW11Teddington
- TW12Hampton and Hampton Hill
- SW13Barnes
- SW14East Sheen and Mortlake
- KT1Kingston and Hampton Wick
The space says it all.