Greater London · England
Window Mastic in East Wickham
We cover East Wickham for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
When something else is needed
We will not take on work that won’t last, so these are the limits:
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
- A failed sealed unit that has misted up
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- Window sills
- Composite doors
- uPVC windows
Window mastic for homes and businesses in East Wickham
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you are dealing with leaking joints at the ends of sills and black, perished sealant on frames, we can help, on uPVC windows, window sills and patio & French doors alike.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking, and access in East Wickham is something to talk through when you book.
All our work is covered by our 12-month guarantee, wherever you are in Greater London.

- Place
- East Wickham (DA16, SE18, SE2)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Towns and villages near East Wickham
Also in East Wickham
Windows and doors in East Wickham
Historic houses like Danson House (about 1.3 miles south-east) are a reminder that the area around East Wickham has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Welling station, renewing tired window mastic between tenants heads off draught and damp complaints. East Wickham is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
East Wickham is about 1 mile north-west of Welling, in Greater London. East Wickham gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Greater London coverage runs to 764 places, and East Wickham is one of them. There’s also a page for London, about 8 miles away.
We work across the DA16, SE18 and SE2 postcode area for window mastic and the streets around it. If you need window mastic at a property on Keats Road, Darwin Road and Edison Road or a nearby road, we can help. Neighbouring places we cover for window mastic include Falconwood (1 mile south), Shooter's Hill (1 mile west), Blackfen (1 mile south), Plumstead (1 mile north-west) and Avery Hill (1 mile south-west). We also work in nearby towns such as London (8 miles west), City of Westminster (11 miles west), Marylebone (11 miles west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (8 miles north-west).
Local landmarks in East Wickham
Around East Wickham, our work takes us to homes and buildings near Shooters Hill Sixth Form College, Welling School and Shoulder of Mutton Green and the streets around them. East Wickham has its own railway station: Welling station. A little further out are Broadway Shopping Centre (2.3 miles south-east) and Greenwich Castle (4.3 miles west). Not far away are The Tarn and Summer Hill.
FAQs for East Wickham
Do you work for landlords with property near Welling station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Is parking an issue for window mastic in East Wickham?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Do you seal inside as well as outside?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal.
How do I get a quote for window mastic in East Wickham?
Size, access and the old material all affect the cost. Call for a quick quote.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do you have insurance?
Yes. We are fully insured for domestic and commercial work.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house and we leave things clean and tidy. In East Wickham, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
Get a quote
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Read more
What affects the quote in East Wickham
There’s no set price list. The quote depends on:
- Mould in or behind the old joints
- How many areas need sealing
- Access and height
- Which sealant suits the joint
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
What to tell us for a quote
When you call or email, these details help:
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- A few photos by email, if you can
- Whether it has been sealed before
Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before we start.
What the job involves on each surface
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.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Why act early in East Wickham
The work is quick compared with the damage it prevents: the visit takes most of a day for a typical house, less for a few frames. Wait for damp to appear and there may be plaster and decorating to sort out too. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in East Wickham, the repair is bigger than a sealant job.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- 20+ years of sealant experience
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced and what customers say.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Wipe condensation off the frames
- Avoid blasting the frames with a pressure washer
- Make sure the drainage slots aren’t blocked
- Paint up to the joint, not over it
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
