Greater London · England
Window & door mastic in Hoxton, Greater London
Window mastic in Hoxton from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps between the frame and the inside reveal
- A bead that doesn’t match the frame
- Old mastic that has gone black or come away
How we handle window mastic in Hoxton
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. We work on timber windows & doors, window sills and composite doors, and common reasons people get in touch are whistling draughts around closed windows and cracked internal joints between frame and plaster.
London has a lot of flats and conversions, where windows are often on upper floors. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Hoxton is something to talk through when you book.
Every job is covered by a 12-month guarantee, wherever you are in Greater London.
- Location
- Hoxton (N1, N1P, EC1V)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Hoxton
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Hoxton is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you let a flat or house near Hoxton station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like Shoreditch Park Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Hoxton is about 2 miles north of London, in Greater London. Our applicators cover window mastic for homes and businesses in Hoxton and the surrounding area, as part of our work across Greater London. Hoxton is one of 764 places in Greater London we cover for window mastic.
Here we cover the N1, N1P and EC1V postcode area for window mastic. We cover properties on City Road, Noel Road and East Road. You’ll find Hoxton on the A1200 and A1208, so it’s easy for us to get to. Other places close to Hoxton include Haggerston (1 mile east), Shoreditch (1 mile south-east), Canonbury (1 mile north), De Beauvoir Town (1 mile north) and St Luke's (1 mile south-west). Larger places within reach include City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (6 miles south-west), Walthamstow (4 miles north-east), Hampstead (4 miles west) and Ruislip (14 miles west). As one of the bigger places in Greater London, Hoxton has homes, rented property and businesses of every kind.
Around Hoxton
In Hoxton, that means homes and buildings near Bishopsgate Institute Special Collections and Archives, Islington Green School and Stag's Head pub. You’ll also find Hackney University Technical College (within half a mile south-east) and Shoreditch Park (less than half a mile north-west). Hoxton has its own railway station: Hoxton station. A little further out are St Leonard's Hospital (under half a mile east) and Montfichet's Tower (1.6 miles south-west). The countryside around Hoxton includes St. James's Park Lake and Barnsbury Wood.
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 keeps the clean look.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
What affects the quote in Hoxton
The quote reflects the job in front of us. We take into account:
- The type of sealant required
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
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 will explain the quote if you ask.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- Any previous sealing or DIY work
- The problem you’ve noticed
- A few photos by email, if you can
- The rough size of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes anything from an hour or two to a full day, depending on how many frames there are. In Hoxton, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Mention if the joints have been sealed before
- Let us know about parking restrictions
How to get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Related advice
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Draughts through the window seals rather than the frame
- Rotten timber, which needs a joiner first
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
- Timber windows & doors
Towns and villages near Hoxton
What else we do in Hoxton
Looking after it afterwards
So the new joints stay in good condition:
- Repaint timber before it’s bare
- Avoid blasting the frames with a pressure washer
- Look round the frames every year or so
- Don’t use solvent cleaners on the joint
Try not to touch the new joint while it cures, following the cure time we give you. Don’t point a pressure washer at the joints.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Landlord and commercial work in Hoxton
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
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.
FAQs for Hoxton
Can you help a landlord with a rental near Hoxton station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover Hoxton for window mastic?
Yes. Our work covers London and the South East, and Hoxton is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
How many windows can you do in a day?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Do you work on first-floor windows?
Yes, in most cases. Access is planned before work begins.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Is the new sealant paintable?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.