End of tenancy cleaning in Monument, booked online

How do you get a full deposit back on a glass-walled conversion flat by Monument, where the windows are huge and the water is hard enough to leave a film on everything it touches? You stop treating the check-out as a wipe-down and treat it as the inspection it actually is. That is the whole of this page.

Last updated April 2026. Written by the Monster Cleaning Ltd team for tenants, landlords and relocation agents handing back flats around Monument, Pudding Lane and King William Street in EC3R and EC4R.

We are Monster Cleaning Ltd, a London domestic cleaning company working since 2014, Companies House number 9919639, registered at 255 Upper Richmond Road West, SW14 8QS. We run end of tenancy cleans across the City of London, and Monument is one of the harder pockets to hand a flat back in cleanly. Not because the flats are big. Most are not. It is because the people renting them are corporate, the agents are City agents, and the inventory clerk has a check-in report with photographs taken in good light.

Here is the answer first, in one line. We clean end of tenancy flats around Monument from £156 for a studio up to £425 for a four-bed, on the 57-point agent-approved checklist, backed by a 48-hour re-clean guarantee.

That capsule is the short version. The rest is the detail, the local stuff that actually matters here, and an honest note on where deposits go on these particular flats. We have done enough of them around the Square Mile to know where the clerk looks.

Why Monument deposits get deducted

Monument is not a residential neighbourhood in the normal sense. There are very few residents. It is the finance core of the Square Mile, built around Wren and Hooke’s column to the Great Fire, with Monument station feeding the District and Circle lines and a walkway straight through to Bank. What homes there are sit above and behind the commercial frontages: office-to-residential conversions, old warehouse buildings turned into flats, a small number of modern apartments and mansion-style flats, and a layer of serviced and corporate lets that turn over on company timelines rather than personal ones.

That stock has two consequences for a check-out. First, the flats are glass. Conversions here were carved out of office floors, so they have large windows or full-height glazing, and the clerk checks that glass at a raking angle with the daylight behind it. Second, the rent is high and the agent treats the inventory accordingly. JLL, Knight Frank and Hamptons all let in the City, and a check-out to their standard is not forgiving. A flat that looks fine at eye level fails when the clerk looks along the glass.

Then there is the water. Monument is on Thames Water, and the central City supply is classified hard. It is the single biggest avoidable deduction on these flats. It dries as a pale film on shower screens, tap bodies and the inside of the windows above any wet area, and once it has built up it does not come off with a cloth and spray. It has to be taken back chemically and the surface re-polished so it is clear. If the in-going photographs show clear glass and the check-out glass has a haze, that is a line on the report and a number against your deposit.

Stone is the other one. A lot of these conversions were specified with stone or stone-effect flooring in the entrance and the wet rooms, because that was the developer look when the offices were converted. Stone marks. It picks up grey traffic lines, it holds a dull cast where cleaning product was left to dry on it, and a clerk with the in-going report will go over it because it photographs badly and it is expensive to make good. We see stone flagged more often around Monument and King William Street than carpet, simply because there is more stone than carpet in the stock.

The legal backdrop has moved too. Under the Renters’ Rights Act 2025 a landlord still cannot deduct for fair wear and tear, but a flat handed back dirtier than it was taken on is cleaning, not wear and tear, and the cost is a legitimate deduction against a protected deposit. Your deposit is held with a scheme such as the Tenancy Deposit Scheme or mydeposits, and a disputed deduction goes to the scheme’s adjudicator, who decides on the evidence: the check-in report, the check-out report and the photographs. A clean done to the standard the clerk checks against keeps you on the right side of that. Shelter has plain guidance on how deposit disputes are decided.

The City of London is its own local authority here, not a London borough. The City of London Corporation runs the Square Mile, and its rules on access, deliveries and the street environment are stricter than a normal residential council’s because this is a working financial district. That matters for the practical side of a clean here, which we will come to, but it does not change the inventory standard. The standard is set by the agent and the clerk, and it is high.

One honest note. We will not pretend Monument is full of period houses, because it is not. There are essentially no period domestic houses here. It is a commercial district with a thin, high-value layer of mostly modern and converted flats above the office stock, with the occasional older split kept as residential. We have cleaned at most one place near here you could fairly call a Victorian conversion. The work is conversion-flat work, glass and stone and tight bathrooms, and we price it as exactly that.

“We had a single tenant in our office-to-residential conversion flat just off King William Street for eighteen months, an international colleague on a finance posting who was relocated out at short notice. The one thing I was bracing for at check-out was the windows. The water here had left a film on the big panes you only saw when the light caught it, and there were marks on the stone floor in the hall that the inventory clerk had written up specifically against the in-going photos. Monster came on a Tuesday, took the glass back so it was actually clear and lifted the stone marks the clerk had listed, and the check-out went through with no deduction against either. I would not have got that back myself.” — landlord, off King William Street

Streets and zones we cover around Monument

We clean across the Monument and lower City pocket. That includes Pudding Lane and Fish Street Hill right by the column, Monument Street itself, King William Street up toward Bank, Eastcheap and Great Tower Street, the Lower Thames Street and Old Billingsgate frontage along the river by London Bridge, the streets behind Leadenhall Market, and the conversion and serviced blocks around Fenchurch Street and the Walkie-Talkie at 20 Fenchurch Street with its Sky Garden. If your flat is in EC3R or EC4R and it is walkable from Monument station, we cover it.

Most jobs here are not booked by the tenant. They are booked by a relocation manager, a landlord or a managing agent on a corporate let, often with the tenant already gone. We are used to that. We can collect keys from an agent’s office, work to a check-out appointment time the clerk has already set, and report back to whoever is managing the deposit rather than the person who lived there. A lot of our City work runs exactly this way.

Access is the practical catch around Monument, not the cleaning. This is a financial district governed by the City of London Corporation, and that brings loading restrictions, controlled access on some buildings, concierge sign-in, and almost no casual parking anywhere near the column or along Lower Thames Street. We come in by Underground via Monument or Bank with our kit and we plan the visit around the building’s access window and the concierge, not around a van outside. Tell us the building’s rules when you book and we will work inside them. We have done enough flats behind Leadenhall and around Fenchurch Street to know how the sign-in and the goods lifts work in most of these buildings.

What’s included in a Monument end of tenancy clean

This is the full clean, done to the 57-point agent-approved checklist. It is one job, not a menu. End of tenancy is the hand-back clean you do when you are leaving and you want the deposit back. A deep clean is for a flat you are staying in. A regular clean is for keeping it ticking over. What is below is the first one, the hand-back, and on a Monument conversion flat it leans heavily on glass and hard surfaces because that is what these flats are made of.

• Kitchen oven: Oven stripped, racks and door glass out, internal panels and the inside of the door degreased to bare metal and not just darkened glass.
• Hob and extractor: Induction or gas hob lifted and cleaned underneath, splashback taken back, extractor canopy degreased and the metal filters soaked.
• Kitchen units: Cupboards and drawers emptied, cleaned inside and out, handles and the tops of wall units done where a clerk runs a finger.
• Appliances: Fridge, freezer, dishwasher, washer-dryer cleaned inside and out, seals and drawers cleaned, behind and beside the units where reachable.
• Worktops and sink: Worktops cleared and cleaned, sink and the tap descaled so the metal is clear, not hazed, plughole and waste cleaned.
• Bathroom glass: Shower screens and the inside of any glazing in the wet room descaled and re-polished until they are clear at a low angle, not merely wiped.
• Bathroom taps and fittings: Taps, shower head, towel rail and metalwork descaled and brought back to clear metal, not left with a white bloom.
• Sanitaryware: WC, basin and bath or shower tray cleaned and descaled inside and out, including the parts a clerk lifts and looks under.
• Tiles and grout: Wall tiles and grout cleaned, mildew on silicone seals treated, the line where the bath or tray meets the wall checked.
• Stone flooring: Stone or stone-effect floors cleaned with the right product for the material, traffic lines and product haze lifted, the floor left even, not patchy.
• Hard floors: Engineered timber, vinyl or tiled floors cleaned to the edges and corners, not just the open middle.
• Carpets where present: Vacuumed thoroughly; carpet shampoo available as a priced add-on if the inventory needs it.
• Internal glazing: Internal glass partitions and screens, common in office conversions, cleaned both faces and the framing.
• Windows inside: All internal window glass cleaned and the hard-water film taken off properly, sills and reveals wiped, frames and tracks cleaned out.
• Window furniture: Handles, restrictors and trickle vents wiped, blind slats or shutter louvres dusted where fitted.
• Doors and frames: Doors, frames, handles and the tops of doors cleaned, fingermarks taken off around handles and light switches.
• Walls and skirting: Spot-cleaned for scuffs where the surface allows, skirting boards wiped along their length, not just the visible runs.
• Switches and sockets: Light switches, sockets, thermostats and entry-phone panels wiped, the grime ring around the most-used switch removed.
• Built-in storage: Fitted wardrobes and any utility or storage cupboard cleaned inside, shelves wiped, rails and runners cleaned.
• Soft furnishings in lets: In furnished and serviced flats, upholstery and mattresses vacuumed; deeper upholstery treatment available as a priced add-on.
• Dust detail: Skirting, ledges, trims, the tops of frames and units, extract grilles and any exposed pipework dusted down.
• Bins and odour: Bins emptied and cleaned, the flat left smelling clean and neutral rather than of cleaning product.
• Entrance and hall: The entrance hall, the inside of the front door and the threshold cleaned, since this is the first thing the clerk records.
• Final inspection pass: A walk-through against the 57 points before we leave, glass checked at a raking angle the way the clerk will check it.

Common reasons we get re-called

We track what brings the clerk back, because a re-clean is a failure on our side and we would rather not need the 48-hour guarantee. Around Monument the same handful of things recur.

• Hard-water film returning on the glass: Glass that looks clear in flat light shows a haze when the clerk angles the daylight across it. If the descaling and the re-polish are not both done properly, the film reads on the report. This is the number-one re-call on these flats and it is the one we plan the whole visit around.
• Stone left patchy: Stone and stone-effect floors cleaned with the wrong product, or with product left to dry on them, come up uneven and dull in patches. A clerk with the in-going photos catches it because stone photographs every flaw.
• Tap and shower-head bloom: Metalwork that was wiped rather than descaled grows a white bloom back within a day or two of the clean. The clerk sees clear metal in the in-going photo and clouded metal at check-out.
• Extractor filter missed: The visible canopy gets cleaned but the metal filter behind it is left greasy. On serviced and corporate lets the clerk pulls the filter, because it is a standard inventory line.
• Edges and reveals on the glazing: On full-height conversion glazing the centre of the pane gets done and the edges, the reveals and the track collect the dust and the film. That is exactly where a thorough clerk looks on a glass flat.

What an end of tenancy clean costs around Monument

Flat pricing, no survey needed for a standard conversion flat. A studio is £156. A one-bed is £207. A two-bed is £243. A three-bed is £339. A four-bed is £425. If you would rather book by time, for example a part-clean on top of a flat you have already done yourself, that is £30 per cleaner per hour.

Add-ons are priced separately so you only pay for what the flat needs. Carpet shampoo is £36 per bedroom, £43 for a living room, or £115 for whole-flat carpet on a two-bed. Oven deep-cleaning is included in the end of tenancy price; as a standalone it is £77 for a single oven, £110 for a double and £114 for a 90cm range. Heavy hard-water descaling across multiple bathrooms or a large run of conversion glazing can add time, and if it will we tell you the number before we start, not after. No surprise line on the invoice.

These are our standard rates and they apply here. We do not load the price for an EC3R postcode the way some firms do for a City address. What you are paying for is the checklist, the descaling done properly, and the guarantee behind it.

How booking works

1. Call 0333 555 2076 or email [email protected] with the flat’s postcode, the number of bedrooms, and your check-out date or the clerk’s appointment time.
2. We give you a fixed price from the rates above and a slot. For a corporate or serviced let we can deal with the agent or relocation manager directly and report to them.
3. Tell us the building’s access rules, whether there is a concierge or a goods lift, and how we get keys. We plan the visit around the City access window and arrive by Underground with the kit.
4. We clean to the 57-point agent-approved checklist and do a final raking-light pass on the glass and the stone before we leave.
5. If the inventory clerk flags anything we covered, call us within 48 hours and we come back and put it right at no charge under the re-clean guarantee.

Related services and nearby areas

If only part of the flat is the problem we also do those jobs on their own. There is detailed oven cleaning for a let where the kitchen is the only flagged item, carpet cleaning where the inventory calls for shampooing, upholstery cleaning for furnished and serviced flats, hard floor and stone cleaning for the entrance and wet-room stone these conversions are full of, and window cleaning for the hard-water film on the glazing. For the wider area, see our end of tenancy cleaning across the City of London hub, or the neighbouring riverside coverage at St Katharine Docks just downriver past the Tower.

Frequently Asked Questions

How much is an end of tenancy clean around Monument?

A studio is £156, a one-bed £207, a two-bed £243, a three-bed £339 and a four-bed £425. Hourly work is £30 per cleaner per hour. Carpet and standalone oven cleaning are priced as add-ons on top.

Do you offer a re-clean guarantee?

Yes. Every end of tenancy clean comes with a 48-hour re-clean guarantee. If the inventory clerk flags something we covered on the 57-point checklist, call us within three days and we come back and put it right at no charge.

Why is hard water such a problem on flats here?

Monument is on Thames Water and the supply through the central City is classified hard. It dries as a pale film on glass, taps and shower screens that a cloth will not shift once it has built up. It has to be taken back chemically and the surface re-polished so it is clear at a low angle, which is exactly where the inventory clerk checks.

The flat has a stone floor in the hall and bathroom. Do you clean that properly?

Yes, and it is one of the most common things flagged on these conversions. Stone and stone-effect floors are cleaned with product matched to the material, traffic lines and any product haze lifted, and the floor left even rather than patchy. A clerk with the in-going photos checks stone closely because it shows every flaw.

Can you work with a relocation agent or managing agent rather than the tenant?

Yes, and most of our Monument jobs run that way. We collect keys from an agent’s office, work to a check-out time the clerk has already set, and report to whoever is managing the deposit. City agents including JLL, Knight Frank and Hamptons let in this area and we are used to their inventory standard.

Is there parking, or how do you get to the flat?

There is effectively no casual parking around the column or along Lower Thames Street, and the City of London Corporation enforces loading rules tightly. We come in by Underground via Monument or Bank with our equipment and plan the visit around the building’s access window and concierge.

What does the 57-point checklist actually cover?

It is the agent-approved list City letting agents recognise: oven and kitchen, bathrooms and descaling, all internal glass and the hard-water film on it, stone and hard floors, doors, skirting, switches, built-in storage and a final inspection pass. On a Monument conversion it leans heavily on glass and hard surfaces.

Do you clean serviced and corporate lets differently?

The checklist is the same, but on a furnished or serviced let we also vacuum upholstery and mattresses, and the clerk on these lets tends to pull the extractor filter and check fitted storage, so we make sure those are done. Deeper upholstery treatment is available as a priced add-on.

How far in advance should I book?

As soon as you have the check-out date or the clerk’s appointment time. Corporate moves around the City often happen at short notice and we are used to tight turnarounds, but the more notice you give the easier it is to get the slot you want.

Is the oven really included in the price?

Yes. A full oven deep-clean is part of the end of tenancy price. The standalone prices, £77 single, £110 double, £114 for a 90cm range, only apply if you book oven cleaning on its own without the full clean.

What happens if I dispute a cleaning deduction?

Your deposit is held with a government-backed scheme such as the Tenancy Deposit Scheme or mydeposits, and a disputed deduction goes to that scheme’s adjudicator, who decides on the check-in report, the check-out report and the photographs. A clean done to the standard the clerk checks against is your evidence.

Does the Renters’ Rights Act 2025 mean I cannot be charged for cleaning?

No. The Renters’ Rights Act 2025 protects you from deductions for fair wear and tear, but a flat handed back dirtier than it was taken on is cleaning, not wear and tear, and the cost is a legitimate deduction against a protected deposit. That is the gap an end of tenancy clean closes.

How good is Monster Cleaning, honestly?

We are a real company, working since 2014, Companies House 9919639. We are on Trustpilot at 3.1 out of 5 across 128 reviews, which we would rather quote straight than dress up. Over time we have helped recover £1.2m in deposits for tenants, hold a 97% first-time pass rate on end of tenancy cleans, and work with 300+ letting agents. The 48-hour guarantee is there for the times it does not go right first time.