Greater London · England
Window Mastic in Monks Orchard
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Monks Orchard. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Whistling draughts around closed windows
- Hard, cracked sealant around windows
- Gaps between the frame and the inside reveal
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Landlords and agents in Monks Orchard can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Window mastic in Monks Orchard, done properly
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you’re dealing with water coming in at the bottom corners of a door and whistling draughts around closed windows, we can help, on aluminium frames, uPVC windows and patio & French doors alike.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Monks Orchard as anywhere.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- Monks Orchard (CR0, SE25, CR9)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Monks Orchard homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.
Monks Orchard is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as Oasis Academy Shirley Park, its window and door frames need their mastic kept sound, just like a home’s.
Monks Orchard is about 2 miles north-east of Croydon, in Greater London. For window mastic in and around Monks Orchard, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Greater London, Monks Orchard included. Monks Orchard is one of 764 towns and villages in Greater London where we work for window mastic. We also work in London, about 8 miles from Monks Orchard.
Jobs for window mastic in CR0, SE25 and CR9 works the same way as everywhere else we cover. Whether your property is on Long Lane, Poppy Lane and Homer Road or anywhere close by, we can help. Neighbouring places we cover for window mastic include Shirley (1 mile south), Shirley Oaks (1 mile west), Addiscombe (1 mile west), Ashburton (1 mile north-west) and Woodside (1 mile north-west). We also work in nearby towns such as London (8 miles north), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Landmarks near Monks Orchard
Around Monks Orchard, our work takes us to homes and buildings near Orchard Way Primary School, The Cricketers pub and Ashburton Park and the streets around them. Monks Orchard’s nearest station is Elmers End station, roughly 1.2 miles north of the centre. Nearby you will also find St George's Walk (2 miles west) and Crystal Palace Museum (2.8 miles north). Green spaces nearby include Bramley Bank and Duppas Hill.
Quotes for window mastic in Monks Orchard
We quote each job individually. These are the things that affect it:
- Whether old sealant or filler has to be cut out
- The size of the job
- Any mould that needs treating
- Working hours on commercial sites
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Photos by email are helpful but not essential. Please mention:
- The problem you’ve noticed
- The address or postcode of the job
- How we’d reach the joints
- Photos by email, if that is easy
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Nearby places to Monks Orchard
Also in Monks Orchard
Different surfaces, different methods
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Common questions in Monks Orchard
Is Monks Orchard in your area for window mastic?
Yes, Monks Orchard is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.
Is parking an issue for window mastic in Monks Orchard?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Where are you based?
We work from Crawley. We cover Monks Orchard and the rest of Greater London, along with the rest of our area.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you have sealant for grey or black windows?
Generally, yes. Mention the frame colour when you ask for a quote and we will match it as closely as we can.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
I rent my home. Can I book you?
Yes. Check with your landlord; we can send the quote to them too.
What we are called out for in Monks Orchard
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.
These are the problems we’re asked about most:
- White mastic on grey or black frames
- Untidy mastic left by window fitters
- Leaking joints at the ends of sills
- Black, perished sealant on frames
If you let a flat or house near Elmers End station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What to look for in a quote
- The length of the guarantee
- Is the old sealant removed completely?
- What insurance they hold
- How the surfaces are prepared before sealing
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
How to get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
Honest limits
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Condensation trapped between the panes
- A sash or casement that will not close properly
- A door that needs adjusting, rehanging or new seals
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Composite doors
- Aluminium frames
- Timber windows & doors
- Window sills
- Patio & French doors
- uPVC windows