Greater London · England
Window & door mastic in Wembley, Greater London
Mastic around window and door frames, sills and patio doors in Wembley, with a 12-month guarantee on every job. Call for a quick quote.
- Mastic that has split away from the wall
- Cold air getting in at the frame edge
- Leaking joints at the ends of sills
About our window mastic in Wembley
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. If you are dealing with gaps left after new windows were fitted and cold air getting in at the frame edge, we can put it right.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, which is when draughts and damp patches appear in homes in Wembley.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Wembley (HA9, HA0, HA1, NW9)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Wembley
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
Look out for these signs:
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
- Gaps left after new windows were fitted
- Sealant in the wrong colour for the frame
Homes close to St Augustine include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- Who does the work, and how experienced they are
- Is VAT in the price?
Wembley: your questions answered
Can you help a landlord with a rental near North Wembley station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is parking an issue for window mastic in Wembley?
Parking in Wembley, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we’re using and why.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we will say so.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Quotes for window mastic in Wembley
We don’t publish a price list. The quote depends on:
- The number of rooms or windows
- Any working-time requirements on site
- The old material and how stubborn it is
- Which sealant suits the joint
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and give you a clear price before we start.
Asking for a quote
When you contact us, these details help:
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
- A few photos by email, if you can
- If someone has resealed it before
For window mastic in Wembley, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Places near Wembley
More services for Wembley
Frames and glazing around Wembley
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Northolt Manor (about 3.4 miles west) are a reminder that the area around Wembley has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you let a flat or house near North Wembley station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. As a London address, Wembley can be tricky for parking: let us know about parking bays, permits or a driveway.
Wembley is about 5 miles west of Hampstead, in Greater London. Wherever you are in the HA9 postcode area, our applicators can take on window mastic. Wembley is one of 764 towns and villages in Greater London we cover. You can also see our page for London, roughly 10 miles from Wembley.
Here we cover the HA9, HA0, HA1 and NW9 postcode area for window mastic. Window mastic is available to properties on Market Way, London Road and Queenscourt. Being close to the A404 and A4088, Wembley is easy for our applicators to reach for window mastic. Neighbouring places we cover for window mastic include Wembley Park (1 mile east), Preston (1 mile north), Mapesbury (1 mile south-east), Tokyngton (1 mile south-east) and Stonebridge Park (1 mile south-east). We also work in nearby towns such as London (10 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles south-east), Kensington (6 miles south-east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Around Wembley
Locally, jobs take us to homes and businesses close to Preston Manor School, Preston Park and Hilton London Wembley pub, among other places. The nearest railway station is North Wembley station, roughly 0.5 miles west of the centre. A little further out are St. Mark's Hospital (1.5 miles north-west) and London Designer Outlet (0.5 miles south-east). Open spaces near Wembley include Masons Field and Castlebar Hill.
Leave it or put it right?
The work is quick compared with the damage it prevents: it takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Wembley clients choose us
- Old sealant always removed completely
- Full insurance on every job
- Anti-fungal sanitary silicone in wet areas
- A sealant colour to suit the surroundings
How the visit works
The work is kept neat and contained to the joints we’re treating. Expect the work to take a morning for a couple of windows and a door. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Wembley. It helps if you can point us to a visitor permit or a bay close to the door.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- Mention if the joints have been sealed before
How to get a quote
We quote each job on its own. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
What we can’t put right
Before you book, it’s worth knowing the limits:
- Faulty window hardware
- Damp problems in the wall away from the window
- Condensation trapped between the panes
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Surfaces we seal
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
- Composite doors
Landlords, agents and businesses in Wembley
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Surface by surface
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We’ll point out any rot we find, as that is a job for a joiner.