Greater London · England
Bowes Park Window Mastic
Mastic around window and door frames, sills and patio doors for Bowes Park, backed by a one-year guarantee. Call for a quick quote.
- Leaking joints at the ends of sills
- Hard, cracked sealant around windows
- Whistling draughts around closed windows
Window mastic in Bowes Park
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on aluminium frames, window sills and timber windows & doors, and common reasons people get in touch are hard, cracked sealant around windows and sealant in the wrong colour for the frame.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
Every job comes with a 12-month guarantee.
- Place
- Bowes Park (N22, N11, N8)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Bowes Park
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
The problems people usually mention when they call include:
- Whistling draughts around closed windows
- Damp patches on the reveal after heavy rain
- Old mastic that has gone black or come away
- Mastic that has split away from the wall
As a London address, Bowes Park can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- The length of the guarantee
- What insurance they hold
- Who turns up on the day
- How the surfaces are prepared before sealing
How the visit works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take most of a day for a typical house, less for a few frames. For a job in Bowes Park, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Tell us about any water getting in
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
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Bowes Park questions
Can parking be tricky for a visit in Bowes Park?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Can you do window mastic in Bowes Park?
Yes, Bowes Park is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
How long before the joint can be used?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What does window mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email and let us know what needs doing and where.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Can I add another job to the visit?
Yes. Just list everything you need and we will quote it together.
How long will my window job take?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
- A sash or casement that will not close properly
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
- Patio & French doors
- Aluminium frames
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Windows and doors in Bowes Park
In a converted house or block, who looks after the windows depends on the lease, so check that before you book. 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.
For landlords with property near Alexandra Palace station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. In the older streets around St Mary's Greek Orthodox Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Bowes Park is about 3 miles south-west of Edmonton, in Greater London. Homes, rented property, offices and hotels in Bowes Park can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Across Greater London, we cover 764 places, and Bowes Park is one of them. Our London page covers work nearby.
Here we cover the N22, N11 and N8 postcode area for window mastic. We cover properties on High Road, Park Road and Edith Road. We also cover the places around Bowes Park: Bounds Green (1 mile north-west), Oakthorpe Park (1 mile north), Palmers Green (1 mile north), Arnos Grove (1 mile north-west) and New Southgate (1 mile north-west). Larger places within reach include London (7 miles south), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (8 miles south-west), St Pancras (5 miles south) and Shoreditch (5 miles south).
Landmarks near Bowes Park
In Bowes Park, that means homes and buildings near Greek Secondary School of London, Woodside Park and St Thomas More Catholic School, among other places. Bowes Park has its own railway station: Alexandra Palace station. Well-known places in the area include Broomfield House Museum (1.1 miles north) and The Mall Wood Green (0.5 miles south-east). For a walk, there’s Highgate Hill and Railway Fields.
Places near Bowes Park
Other services in Bowes Park
How we quote for window mastic
Call for a quick quote. What matters most is:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- The size of the job
- Which sealant suits the joint
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 send us an email.
What we need to know
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- Where the property is
- The problem you’ve noticed
- Whether it’s a home or a business
If you’re in Bowes Park and need window mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Aftercare tips
To keep the joints looking good and working properly:
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
- Keep jet washers away from the mastic
- Do not paint over the silicone
Keep the new mastic undisturbed while it cures, for as long as we advise. Do not point a pressure washer at the joints.
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.
Surface by surface
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 suits the frame.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.