Window cleaning from £66 a house
Monster Cleaning cleans windows in London, Liverpool and Manchester from £66 for the outside of a one-bedroom house, or £101 inside and out. Ground-floor glass is done by hand with a squeegee and cloth. Anything higher is cleaned from the ground with a pure-water brush on a telescopic pole, so nobody leans a ladder against your walls and the glass dries clear.
The price goes by the size of the house. A conservatory and any extra upstairs windows have set prices of their own, so you know the total before we arrive. Frames and sills are wiped on every visit.
Prices last updated September 2026
Window cleaning prices
Each price is for one visit. Start with the house size, then add a conservatory or extra windows if you have them.
| Outside only | Price |
|---|---|
| 1-bed house | £66 |
| 2-bed house | £89 |
| 3-bed house | £113 |
| 4-bed house | £122 |
| 5-bed house | £152 |
| 6-bed house | £202 |
| Extra window, first floor | £14 each |
| Extra window, second floor | £17 each |
| Small conservatory | £61 |
| Large conservatory | £89 |
| Inside and out | Price |
|---|---|
| 1-bed house | £101 |
| 2-bed house | £128 |
| 3-bed house | £143 |
| 4-bed house | £189 |
| 5-bed house | £240 |
| 6-bed house | £290 |
| Extra window, first floor | £18 each |
| Extra window, second floor | £21 each |
| Small conservatory | £100 |
| Large conservatory | £128 |
A 3-bed house with a small conservatory comes to £174 outside only, or £243 inside and out. Two extra first-floor windows on a 2-bed house make it £117 outside only, or £164 inside and out. If the street has no free parking, we pass on what parking costs us and nothing more.
What the window clean covers
Outside only or inside and out, the visit follows the same routine.
- The outside glass on every window we can reach, including patio doors, bi-folds and French doors.
- Frames, sills and trickle vents wiped down. These are the parts that most often get skipped.
- Cobwebs and debris cleared out of the window reveals.
- Ground-floor windows cleaned by hand with a squeegee and cloth where we can stand close to the glass.
- Upper-floor windows cleaned with a pure-water pole, worked from the ground.
- On an inside and out booking, the inside glass as well.
- Conservatories, priced as small or large in the tables above.
Pure-water window cleaning
Pure-water window cleaning uses ordinary mains water that has been filtered to remove its dissolved minerals. The cleaner feeds it through a soft-bristle brush on a telescopic carbon-fibre pole, scrubs the glass and rinses it with more pure water. With no minerals in it, the water lifts the dirt and then dries without a mark, because there is nothing left on the pane to dry into a spot or a streak.
That matters in London especially. The tap water is hard, so plain water drying on a window leaves a faint ring of scale behind. The brush also reaches into the corners of a frame and the beading around each pane, which a wet cloth rarely gets into properly.
The squeegee still has its place. On a big ground-floor window we can stand right next to, a squeegee and cloth give a fine finish, and we use them there. Above one storey a squeegee means a ladder, and on a sash split into a dozen small panes it is slow at any height, so the pole does that work. To keep the ground-floor glass clear between visits, our guide to cleaning windows without streaks has the hand method.
How often to clean your windows
Every six to twelve weeks suits most homes. A house on a main road or under mature trees looks better cleaned every four to six weeks. On a quiet residential street, every three months is usually enough.
City glass gets dirty faster than people expect. Traffic leaves a thin, slightly oily film on the pane, and grime sticks to it. From April into June the plane trees drop pollen and sticky sap as well. Rain a few days after a clean can also leave spots as it dries; that is the weather, and no method stops it. This is why a lighter clean every couple of months keeps the glass looking better than one big clean twice a year.
If you’d like us back on a regular cycle, say so when you book.
Booking a window clean
Tell us about the house. Ring 0333 555 2076, 8am to 7pm, seven days a week. We need the number of bedrooms, any conservatory, and whether you want the inside done too.
Agree a day. We book the visit and give you the price from the tables above.
Leave the side gate open. For outside only you don’t need to be home: we need a way round to the back and a water tap. For inside and out, someone has to let us in.
Vetted, insured window cleaners
On an inside and out visit the cleaner goes into every room with a window, so it matters who turns up.
Interviewed in person and insured. Every cleaner is interviewed face to face and insured before their first job.
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Cleaning homes since 2014. More than 40,000 properties cleaned across London, Liverpool, Manchester and the areas around them.
No ladders on your walls. Upper windows are cleaned from the ground, so nothing leans on your brickwork or gutters.
The price before we come. Windows are priced by house size and floor, and you get the figure when you book.
Commercial window cleaning
Offices, shopfronts, restaurants, gyms and other business premises are quoted per site. Access, the number of floors, how often you want us and whether the inside glass is included all change the job, so a fixed table would not be fair to anyone.
Most business visits are booked early in the morning or after closing, so nobody is working round a pole during trading hours. Shopfronts on a busy street often need a weekly clean. Restaurant and café windows usually carry a film of kitchen grease on the inside; that gets a degreaser first, then a pure-water rinse. Gyms have a similar problem with the humidity. We can supply a risk assessment and method statement for any site that asks for one. For a building taller than a pole can reach, ring us before booking. If we already clean your offices, the windows can go into the same arrangement: see commercial cleaning.
Window cleaning with other services
If we’re outside with the poles anyway, a patio or driveway can be cleaned on the same visit: see outdoor cleaning. New-build and renovation windows are usually covered in paint speckle, cement run-off, sticker residue and glue from protective film, and that has to come off before a normal window clean is possible; it is part of an after builders clean. Some inventory reports ask for the outside windows to be cleaned at check-out, and if yours does, add the windows when you book your end of tenancy clean.
Window cleaning questions
Do I need to be home for a window clean?
Only for inside and out. For outside only we need a way round to the back of the house and a water tap. Most people leave the side gate unlocked or tell us where the key safe is.
Do you clean the inside of the windows?
Yes. Book inside and out, which on a 3-bed house is £143 against £113 for the outside alone. Plenty of customers book the outside only, since that is where the weather does its damage. Inside glass stays clean for longer unless there are pets, a smoker or a wood burner in the house.
Can you clean Victorian sash windows?
Yes. Sashes with lots of small panes take longer, because each pane is done on its own, and old putty around the beading can be fragile. We use a lower-pressure pure-water setting on them and take extra care around the paintwork. If your sashes are old and you’re nervous about them, say so when you book and we’ll agree the approach first.
Will you clean windows in the rain?
In light drizzle, yes. The water from our brush is cleaner than the rain, and the glass dries fine. In heavy rain we move the visit, because the result suffers, and we tell you ahead of time if a slot has to change.
Do you clean windows on flats?
Our price list is by house size. For a flat, ring 0333 555 2076 with the floor and roughly how many windows there are, and we’ll give you a price.
What if something is damaged during the clean?
We’re insured. Breakages are rare with a pure-water pole, because the brush is soft bristle and puts no pressure on the glass that could crack it. The old ladder-and-bucket method was where the breakages happened.
Give us the house size and whether you want the inside done, and you’ll have a price straight away. The rest of our services and their prices are on one page at our prices.