Greater London · England
Tokyngton Window Mastic
Window mastic across Tokyngton and nearby, with old sealant always removed completely.
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
What happens on the day
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. Most jobs take a morning for a couple of windows and a door. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Clear items away from the joints we are working on
- Tell us about any water getting in
- Tell us if parking is tricky
Get a quote
To get a quote, ring 0345 464 0079 or send 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.
Advice
How we handle window mastic in Tokyngton
Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. Typical jobs include cracked sealant at the sill ends and old mastic that has gone black or come away, on window sills, uPVC windows and composite doors.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Tokyngton as anywhere.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Tokyngton (HA9, NW10, HA0)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each 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.
Aluminium frames
Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match keeps the clean look.
Leave it or put it right?
Resealing frames is a short job: it 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 by the time it shows on a wall or ceiling in Tokyngton, the repair is bigger than the sealant job would have been.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What you get with us
- Colour picked to suit the job
- Every job guaranteed for a year
- A choice of colours where the product allows
- 180+ five-star Google reviews
Window mastic in Tokyngton: local notes
Historic houses like Pitzhanger Manor (about 2.8 miles south-west) are a reminder that the area around Tokyngton has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.
Tokyngton is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Letting a property close to Stonebridge Park station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Tokyngton is about 1 mile south-east of Wembley, in Greater London. From the centre of Tokyngton to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Our Greater London coverage runs to 764 places, Tokyngton among them. Our London page covers work nearby, about 9 miles away.
Jobs for window mastic in HA9, NW10 and HA0 is quoted and booked the same way as anywhere else. We cover properties on Harrow Road, Wycombe Road and Tring Avenue. Close by, we work in Stonebridge Park (1 mile south-east), Mapesbury (1 mile north-west), Stonebridge (1 mile south-east), Brent Park (1 mile north-east) and West Twyford (1 mile south). Within a short drive, we also cover London (9 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles east), Kensington (5 miles south-east), St Pancras (7 miles east) and Shoreditch (9 miles east).
What’s near Tokyngton
Typical jobs here are in homes near The Swaminarayan School, St. Raphael's Edible Garden and Ark Elvin Academy. Tokyngton has its own railway station: Stonebridge Park station. Well-known places in the area include Brent Museum and Archives (2.1 miles east) and Neasden Hospital (0.7 miles east). Green spaces nearby include Middle Lake and Hanger Hill Wood.
Tokyngton questions
Do you work for landlords with property near Stonebridge Park station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Is parking a problem for a job in Tokyngton?
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.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Do you guarantee window mastic?
Yes, for 12 months. A yearly look at the joints helps them last.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Do you need window mastic in Tokyngton?
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.
These are the problems we are asked about most:
- Draughty joints inside around the window
- Old mastic that has gone black or come away
- White mastic on grey or black frames
- Untidy mastic left by window fitters
If you live in an older home near St Michael the Archangel, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- How much experience the applicator has
- Are they insured?
- What preparation is included
- What the quote includes, VAT included or not
What affects the quote in Tokyngton
We quote each job individually. This is what makes a difference:
- Any mould that needs treating
- The product the joint needs
- When we can work, for business premises
- How many areas need sealing
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- If someone has resealed it before
- Whether it’s a home or a business
- A few photos by email, if you can
- Where the property is
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
What we cannot put right
In fairness, some problems need a different trade:
- Damp coming through the wall itself rather than the frame joint
- A door that needs adjusting, rehanging or new seals
- A sash or casement that won’t close properly
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
- Aluminium frames
- Patio & French doors
Nearby places to Tokyngton
Other services in Tokyngton
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Check the mastic once a year
- Keep timber frames painted
- Do not aim a pressure washer at the joints
- Avoid harsh chemicals near the mastic
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Leaks normally show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.