Greater London · England
Window Mastic in Westbourne Green
Problem with your window and door frames in Westbourne Green? We remove the old material, prepare the joints and seal them properly.
- A bead that doesn’t match the frame
- Damp patches on the reveal after heavy rain
- Gaps between the frame and the inside reveal
Window mastic in Westbourne Green, done properly
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty. If the draught is through the window seals instead, we will tell you. Typical jobs include black, perished sealant on frames and cold air getting in at the frame edge, across patio & French doors, composite doors and window sills.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease usually says who is responsible for the windows, so it’s worth checking before booking, and access in Westbourne Green is something to talk through when you book.
Every job comes with our one-year guarantee.
- Location
- Westbourne Green (W2, W9, W11)
- Region
- Greater London
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Westbourne Green
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
What affects the quote in Westbourne Green
There’s no set price list, because no two jobs are the same. What we look at:
- The size of the job
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
When you call or email, these details help:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
- Any previous sealing or DIY work
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or email us.
When to call us in Westbourne Green
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Common reasons people contact us are:
- Rushed sealant from a window installation
- Old mastic that has gone black or come away
- A bead that doesn’t match the frame
- Cracked internal joints between frame and plaster
In the older streets around St Mary Magdalene, the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before you book
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- When the joint can take water or movement
- Which colour the sealant will be
How it works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. 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.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we are working on
Ask for a quote
For window mastic in Westbourne Green, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Related advice
Why it’s worth doing now in Westbourne Green
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. In a flat in Westbourne Green, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why book with us
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
Window mastic in Westbourne Green: local notes
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. Historic houses like Kensington Palace (about 1 mile south) are a reminder that the area around Westbourne Green has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near London Paddington station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Edward Wilson Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Westbourne Green is about 2 miles north-east of Kensington, in Greater London. From the centre of Westbourne Green to the outskirts, window mastic is available for homes and businesses alike. Westbourne Green is one of 764 towns and villages in Greater London where we work.
Jobs for window mastic in W2, W9 and W11 is quoted and booked the same way as anywhere else. You will find streets such as Salem Road, Talbot Road and Harrow Road, and we cover them all. Westbourne Green is on the A404 and A4206, so it’s easy for us to get to. Other places close to Westbourne Green include Little Venice (1 mile east), Westbourne (1 mile south-west), Maida Vale (1 mile north), Paddington Green (1 mile east) and Paddington (1 mile east). Within a short drive, we also cover London (4 miles east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (8 miles north-east), Hoxton (5 miles east) and Whitechapel (5 miles east).
Around Westbourne Green
We work in homes and buildings around Maida Vale School, Emslie Horniman's Pleasance and Abdus Salam Library and the streets around them. Nearby too are The Bridge House (under half a mile east) and Westminster Academy (less than half a mile west). The nearest railway station is London Paddington station, about 0.5 miles south-east. Other landmarks nearby include Greek Orthodox Cathedral Treasury Museum (0.6 miles south) and Paddington General Hospital (under half a mile north-west). Not far away are The Long Water and Greville Place nature reserve.
How the job changes by surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Composite doors
Draughts round the door leaf normally come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
Nearby places to Westbourne Green
Also in Westbourne Green
When it is not the sealant
A few problems are outside what sealant work can do:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Window sills
- Composite doors
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- uPVC windows
Westbourne Green: your questions answered
Is Westbourne Green in your area for window mastic?
Yes, Westbourne Green is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near London Paddington station?
Yes. We work for letting agents and landlords as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
How many windows can you do in a day?
Allow a few hours for a few frames, or a day or more for a whole house. Access and the amount of old mastic make the biggest difference.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear.