Greater London · England
Fish Island Window Mastic
Problem with your window and door frames in Fish Island? We cut out the old, prepare the joints and apply the right sealant.
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
- Rushed sealant from a window installation
How we handle window mastic in Fish Island
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty. Where the air is getting in through the window itself, we will say so. We work on composite doors, window sills and uPVC windows, and people most often call us about sealant in the wrong colour for the frame and damp patches on the reveal after heavy rain.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Place
- Fish Island (E3, E9, E20)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Fish Island
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. 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 site and facilities teams at buildings such as Mossbourne Riverside Academy, its window and door frames need their mastic kept sound, just like a home’s. Homes close to St Mary of Eton include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Fish Island is about 1 mile west of Stratford, in Greater London. For window mastic in and around Fish Island, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Greater London. Fish Island is one of 764 towns and villages in Greater London we cover for window mastic.
We cover every part of E3, E9 and E20 for window mastic. Window mastic is available to properties on Wick Lane, Dace Road and Wyke Road and the roads around them. Neighbouring places we cover for window mastic include Hackney Wick (1 mile north), Old Ford (1 mile south), Donnybrook Quarter (1 mile south-west), Bow (1 mile south) and East Village (1 mile north-east). Larger places within reach include London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Shoreditch (3 miles west).
What’s near Fish Island
Locally, jobs take us to homes and businesses close to Mulberry UTC, Grove Hall Park and The Lea Tavern. Fish Island has its own railway station: Hackney Wick station. Nearby you will also find V&A East (less than half a mile east) and Tower of London (3.1 miles south-west). The countryside around Fish Island includes Hollow Pond and Tower Hill.
What affects the quote in Fish Island
The price is agreed before any work begins. It takes into account:
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
When you contact us, it’s useful to know:
- Any access issues, like height or stairs
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details, and pictures are welcome.
When to call us in Fish Island
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that can’t keep up eventually tears.
Common reasons people contact us are:
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
- Black, perished sealant on frames
- Draughty joints inside around the window
As a London address, Fish Island can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Comparing quotes
- Are they insured?
- How much experience the applicator has
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for a few frames, or a day or more for a whole house. 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.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Landlord and commercial work in Fish Island
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.
FAQs for Fish Island
I let a flat near Hackney Wick station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do window mastic in Fish Island?
Yes, Fish Island is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
Is the new sealant paintable?
Most silicone can’t be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Can you reach windows above the ground floor?
Usually, yes. We plan safe access before the job, so mention the height and anything in the way.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Does the work come with a guarantee?
Yes, for 12 months. A yearly look at the joints helps them last.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
Nearby places to Fish Island
What else we do in Fish Island
Surface by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
What we can’t put right
It helps to know what we can’t do too:
- Rotten timber, which needs a joiner first
- A door that needs adjusting, rehanging or new seals
- A failed sealed unit that has misted up
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Timber windows & doors
- Window sills
- uPVC windows
- Composite doors
- Patio & French doors
- Aluminium frames