Greater London · England
Window Mastic in Turnpike Lane
Specialist window mastic for Turnpike Lane: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
About our window mastic in Turnpike Lane
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. We’re often asked to deal with untidy mastic left by window fitters and rain getting in at the frame or under the sill, on window sills, patio & French doors and aluminium frames.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Turnpike Lane.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Turnpike Lane (N8, N22, N15)
- Region
- Greater London
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Turnpike Lane
Do you work for landlords with property near Hornsey station?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Is Turnpike Lane in your area for window mastic?
Yes. We work across London and the South East, and Turnpike Lane is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
What information do you need?
A short description and the location, with pictures by email if possible. If we need more, we’ll ask.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Is the new sealant paintable?
It depends on the sealant. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before work begins.
Can you reach windows above the ground floor?
Generally, yes. We plan safe access before the job.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
How we quote for window mastic
We do not publish a price list. The quote depends on:
- Access and height
- How many areas need sealing
- How much there is to do
- Which sealant suits the joint
Doing several joints on one visit usually makes better use of the time than several visits. We’ll send you a clear quote for the lot.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- The address or postcode of the job
- Whether it has been sealed before
- The type of property
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a morning for a couple of windows and a door, including the tidy-up. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Turnpike Lane. A visitor permit or a nearby bay makes the visit run more smoothly.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
Ask for a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Read more
Keeping the joints in good condition
Aftercare is simple:
- Keep solvents and bleach off the sealant
- Keep drainage slots and sill grooves clear
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
A yearly look round the frames is enough. Small splits are simple to catch before they leak.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
If you manage several properties in or around Turnpike Lane, several properties can go on one quote. Send us the addresses and the work at each.
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. 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 Turnpike Lane, the repair is bigger than the sealant job would have been.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why us?
- 180+ five-star Google reviews
- Full insurance on every job
- Arbo and Everbuild products
- Old sealant always removed completely
See our cost guide or customer reviews.
Towns and villages near Turnpike Lane
Also in Turnpike Lane
Frames and glazing around Turnpike Lane
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. With historic houses such as Bruce Castle (about 1.5 miles north-east) nearby, there’s older building stock in the area around Turnpike Lane as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as North Harringay Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Turnpike Lane is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Turnpike Lane is about 3 miles north of Highbury, in Greater London. For window mastic in and around Turnpike Lane, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Greater London, Turnpike Lane included. Across Greater London, we cover 764 places, and Turnpike Lane is one of them. There’s also a page for London, roughly 6 miles from Turnpike Lane.
Our applicators cover all of N8, N22 and N15 for window mastic and the streets around it. If you need window mastic at a property on Bury Road, High Road and Glebe Road or a nearby road, our applicators can take on the job. Other places close to Turnpike Lane include Hornsey (1 mile west), Noel Park (1 mile north), Wood Green (1 mile north), Stroud Green (1 mile south) and Crouch End (1 mile south-west). We also work in nearby towns such as London (6 miles south), City of Westminster (6 miles south), Marylebone (5 miles south), Kensington (7 miles south-west), St Pancras (4 miles south) and Shoreditch (5 miles south).
Landmarks near Turnpike Lane
Typical jobs here are in homes near Moselle Upper School, The Toll Gate pub and Ducketts Common and the streets around them. There’s a railway station in Turnpike Lane itself: Hornsey station. Nearby you’ll also find Hornsey Central Hospital (1.1 miles west) and The Mall Wood Green (within half a mile north). The countryside around Turnpike Lane includes Darland's Lake and Railway Fields.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Do you need window mastic in Turnpike Lane?
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, so it comes away long before its time.
If you can see any of these, it’s time to have the joints looked at:
- Old mastic that has gone black or come away
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
If you live in an older home near Church of St John The Baptist (greek Orthodox), replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- How long the guarantee is
- Whether you can choose the colour
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not