Greater London · England
Window Mastic in Shepherd's Bush
Specialist window mastic for Shepherd's Bush: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- A bead that doesn’t match the frame
- Damp patches on the reveal after heavy rain
- Cracked sealant at the sill ends
Signs you need window mastic in Shepherd's Bush
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Look out for these signs:
- A bead that doesn’t match the frame
- Cracked internal joints between frame and plaster
- Gaps left after new windows were fitted
- Cold air getting in at the frame edge
Homes close to Shepherd's Bush Tabernacle include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- The length of the guarantee
- What happens if they find a problem under the old sealant
- What product goes in the joint
- How the surfaces are prepared before sealing
Window mastic in Shepherd's Bush
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. Common call-outs are for mastic that has split away from the wall and draughty joints inside around the window, on patio & French doors, uPVC windows and composite doors.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, letting in draughts and water.
All of our work is guaranteed for twelve months.
- Location
- Shepherd's Bush (W12, W11, W14)
- Region
- Greater London
- Cover
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Shepherd's Bush
Can you do window mastic in Shepherd's Bush?
Yes. Our work covers London and the South East, and Shepherd's Bush is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Do you work for landlords with property near Shepherds Bush station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can I paint over the new sealant?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Frames and glazing around Shepherd's Bush
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Shepherds Bush station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Shepherd's Bush is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Shepherd's Bush is about 1 mile west of Kensington, in Greater London. Whether you’re in the middle of Shepherd's Bush or further out, window mastic is available for homes and businesses alike. Our Greater London coverage runs to 764 places, Shepherd's Bush among them.
Here we cover the W12, W11 and W14 postcode area for window mastic. That includes homes and businesses on Bard Road, Stowe Road and Wells Road. Being close to the A402, Shepherd's Bush is simple for us to get to. We also cover the places around Shepherd's Bush: White City (1 mile north), Holland Park (1 mile east), Notting Hill (1 mile north-east), Kensington (1 mile east) and Notting Dale (1 mile north-east). We also work in nearby towns such as London (5 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (5 miles east), Shoreditch (6 miles east) and Walthamstow (10 miles north-east).
Near you in Shepherd's Bush
Locally, jobs take us to homes and businesses close to The Cardinal Vaughan Memorial RC School, Corona Theatre School and Polish Library POSK in London and the streets around them. Also close by are Hammersmith Park (0.5 miles north-west) and The Central Bar (within half a mile east). There’s a railway station in Shepherd's Bush itself: Shepherds Bush station. Other landmarks nearby include West 12 Shepherds Bush (under half a mile east) and Culture House (under half a mile west). Not far away are WWT London Wetland Centre and The Long Water.
What affects the quote in Shepherd's Bush
Your quote is based on your job. We look at:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- How easy the joints are to reach
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- The problem you’ve noticed
- Whether it’s a home or a business
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Landlords, agents and businesses in Shepherd's Bush
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. 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.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- 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.
Before we arrive
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
Get a quote
Every job is quoted individually. Simply phone 0345 464 0079 or email us and describe the job, and photos are welcome.
Related advice
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep jet washers away from the mastic
- Air rooms to keep condensation down around windows
- Do not paint over the silicone
- Don’t use solvent cleaners on the joint
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Nearby places to Shepherd's Bush
Other services in Shepherd's Bush
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Worn gaskets, brush seals or a door that has dropped
- A frame that has rotted at the joint
- A sash or casement that won’t close properly
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Patio & French doors
- Composite doors
- Timber windows & doors
- uPVC windows
- Window sills
- Aluminium frames