Greater London · England
Window Mastic in West Ham
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in West Ham. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
- Mastic that is falling out in pieces
FAQs for West Ham
I let a flat near West Ham station. Can you help?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Is West Ham in your area for window mastic?
Yes, West Ham is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Can I paint over the new sealant?
Most silicone can’t be painted. Let us know beforehand, and we’ll use a paintable product where it suits.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Where do you work from?
We work from Crawley. We cover West Ham and the rest of Greater London, along with the rest of our area.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
Window mastic in West Ham
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on uPVC windows, aluminium frames and timber windows & doors, and common reasons people get in touch are gaps left after new windows were fitted and a bead that doesn’t match the frame.
London has a lot of flats and conversions, where windows are often on upper floors. Who looks after the outside of the frames can depend on the lease, so check that first, and access in West Ham is something to talk through when you book.
All of our work is guaranteed for twelve months, in West Ham and everywhere else we cover.
- Where
- West Ham (E15, E13, E7)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes most of a day for a typical house, less for a few frames, depending on the size of the job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in West Ham. It helps if you can point us to a visitor permit or a bay close to the door.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or email us.
Related advice
What we’re called out for in West Ham
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
These are the problems we are asked about most:
- Damp patches on the reveal after heavy rain
- Cracked internal joints between frame and plaster
- Gaps left after new windows were fitted
- Whistling draughts around closed windows
If you live in an older home near Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- Is the old sealant removed completely?
- How the colour is chosen
- When the joint can take water or movement
- Whether they’re fully insured
What affects the cost of window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The type of sealant required
- Whether old sealant or filler has to be cut out
- How many areas need sealing
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
What to tell us for a quote
To help us quote quickly, please include:
- Whether it has been sealed before
- The problem you’ve noticed
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or drop us an email.
Frames and glazing around West Ham
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Sutton House (about 2.9 miles west) nearby, there’s older building stock in the area around West Ham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
As a London address, West Ham can be tricky for parking: let us know about parking bays, permits or a driveway. Managing a site like West Ham Church Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
West Ham is about 2 miles west of East Ham, in Greater London. Across the E15 area, our applicators can take on window mastic. West Ham is one of 764 towns and villages in Greater London where we work.
Every address in E15, E13 and E7 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Plaistow Grove, Willis Road and Moorey Close or a nearby road, our applicators can take on the job. If you are just outside West Ham, we cover Upton (1 mile north-east), Greengate (1 mile south-east), Maryland (1 mile north-west), Stratford (1 mile north-west) and Plaistow (1 mile south-east). We also work in nearby towns such as London (5 miles south-west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (9 miles west), St Pancras (6 miles west) and Shoreditch (4 miles west).
Local landmarks in West Ham
Locally, jobs take us to homes and businesses close to West Ham Church School, The Earl Of Derby Public House and St Bonaventure's RC School, among other places. The nearest railway station is West Ham station, about 0.5 miles south-west of the centre. Nearby you’ll also find Greenwich Castle (3.9 miles south) and Passmore Edwards Museum (0.6 miles north). The countryside around West Ham includes Old Ford Island and Tower Hill.
Other services in West Ham
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the new bead is laid against the frame and the wall and tooled smooth.
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
Why West Ham customers choose us
- Domestic, commercial and hotel work
- You choose the colour before work begins
- White, clear, grey or another colour, product permitting
- Any old sealant cut out fully, not covered over
Take a look at our cost guide or what customers say.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Faulty window hardware
- A door that needs adjusting, rehanging or new seals
- A frame that has rotted at the joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Aluminium frames
- Window sills
- Patio & French doors
- Composite doors
- uPVC windows
- Timber windows & doors
DIY versus a professional finish
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.