Greater London · England
Window & door mastic in Shoreditch, Greater London
Professional window mastic in and around Shoreditch, with old sealant always removed completely and a 12-month guarantee.
- Mastic that’s falling out in pieces
- Cracked internal joints between frame and plaster
- Gaps left after new windows were fitted
Window mastic in Shoreditch, done properly
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. Common call-outs are for draughts coming in around windows and doors and cracked or shrunken mastic around the frame, across window sills, patio & French doors and timber windows & doors.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking.
Every job is covered by our one-year guarantee, wherever you are in Greater London.
- Where
- Shoreditch (E1, E2, N1)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- A frame that has rotted at the joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Penetrating damp from a failed cavity tray or render
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Timber windows & doors
- Aluminium frames
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
What we are called out for in Shoreditch
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
The most common problems we see are:
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
- Black, perished sealant on frames
- Hard, cracked sealant around windows
Schools such as Virginia Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- What the quote includes, VAT included or not
- What the cure time is
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Quotes for window mastic in Shoreditch
For a quick quote, just ask. The main things that affect it are:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- The size of the job
- Any working-time requirements on site
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Helping us quote
To make quoting easier, please include:
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Whether it’s a home or a business
- Pictures of the joints, sent by email
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Shoreditch homes and the weather
With historic houses such as Mansion House (about 1 mile south-west) nearby, there’s older building stock in the area around Shoreditch as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
As a London address, Shoreditch can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. In the older streets around St Leonard's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Shoreditch is about 2 miles north of London, in Greater London. Across the E1 area, we can carry out window mastic at your property. Shoreditch is one of 764 towns and villages in Greater London where we work.
All of E1, E2 and N1 is within our area for window mastic, from the main roads to the quietest streets. That includes homes and businesses on New Road, Moor Lane and City Road. Shoreditch sits on or near the A1 and A10, which makes travel easy. Neighbouring places we cover for window mastic include Haggerston (1 mile north), Hoxton (1 mile north-west), St Luke's (1 mile west), Spitalfields (1 mile south) and Finsbury (1 mile west). We also work in nearby towns such as City of Westminster (3 miles west), Marylebone (3 miles west), Kensington (6 miles west), Walthamstow (5 miles north-east), Hampstead (5 miles north-west) and Ruislip (15 miles west). Being one of Greater London’s larger places, Shoreditch has every kind of property, from flats to offices.
Near you in Shoreditch
In Shoreditch, that means homes and buildings near The Prince's School of Traditional Arts, Hackney University Technical College and Bishopsgate Institute Special Collections and Archives. You will also find Artillery Ground (0.5 miles south-west), Former London Apprentice pub (under half a mile north-west) and St Mary-at-Hill (1.1 miles south). There’s a railway station in Shoreditch itself: Shoreditch High Street station. A little further out are Tower of London (1.2 miles south) and Gabriel's Wharf (1.8 miles south-west). Green spaces nearby include Tower Hill and St. James's Park Lake.
Places near Shoreditch
What else we do in Shoreditch
What we do, step by step
At the end, we look at the finished work together. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Shoreditch. A visitor permit or a nearby bay makes the visit run more smoothly.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- 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.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
- Mention any tricky access
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Advice
Your questions about window mastic in Shoreditch
Is parking an issue for window mastic in Shoreditch?
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 do window mastic in Shoreditch?
Yes. Our work covers London and the South East, and Shoreditch is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
Do you work for letting agents?
Yes, we do. We work in homes, commercial premises and hotels, and we’re fully insured.
Can resealing stop a draught around my window?
In many cases. Air often gets in between the frame and the wall, and resealing inside and out closes it.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or email us.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.