Greater London · England
Window & door mastic in Eel Pie Island, Greater London
Mastic around window and door frames, sills and patio doors for homes and businesses in Eel Pie Island and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that has split away from the wall
- Rain getting in at the frame or under the sill
- Cracked sealant at the sill ends
How we handle window mastic in Eel Pie Island
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include gaps left after new windows were fitted and cracked or shrunken mastic around the frame, across aluminium frames, patio & French doors and uPVC windows.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, letting in draughts and water.
Big or small, you get the same one-year guarantee in Eel Pie Island and across Greater London.
- Location
- Eel Pie Island (TW1, TW10, TW2)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Eel Pie Island
There’s no set price list, because no two jobs are the same. The quote depends on:
- When we can work, for business premises
- Whether there’s mould to deal with
- The old material and how stubborn it is
- Which sealant suits the joint
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Any access issues, like height or stairs
- Where the property is
- If someone has resealed it before
- What’s wrong with the joints now
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Different surfaces, different methods
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
Composite doors
A composite door normally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Wipe condensation off the frames
- Keep drainage slots and sill grooves clear
- Use gentle cleaners on frames and sealant
- Avoid blasting the frames with a pressure washer
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
What window mastic looks like in Eel Pie Island
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.
In the older streets around St Mary's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Eel Pie Island is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Letting a property close to Twickenham station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Eel Pie Island is about 1 mile east of Twickenham, in Greater London. Wherever you are in the TW1 postcode area, we cover window mastic for homes and businesses. Eel Pie Island is one of 764 places in Greater London where we work for window mastic. There’s also a page for London, about 11 miles away.
We work across the TW1, TW10 and TW2 postcode area for window mastic. Streets in the area include Oak Lane, Sion Road and Bell Lane. You’ll find Eel Pie Island on the A305 and A310, which makes it straightforward to reach. Neighbouring places we cover for window mastic include Twickenham (1 mile west), Strawberry Hill (1 mile south-west), Ham (1 mile south-east), Petersham (1 mile east) and St Margarets (1 mile north). Further out, we also cover London (11 miles east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (6 miles north-east), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
What’s near Eel Pie Island
Typical jobs here are in homes near St Catherine's School, Orleans Park School and Marble Hill Park and the streets around them. Eel Pie Island has its own railway station: Twickenham station. Nearby you’ll also find South Middlesex Hospital (1 mile north-west) and Eel Pie Island Museum (under half a mile north). Not far away are Kew Gardens Lake and Ham Lands.
For landlords 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.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Leave it or put it right?
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Eel Pie Island
- Anti-fungal sanitary silicone in wet areas
- A choice of colours where the product allows
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
See how sealant jobs are priced and our reviews.
What we do, step by step
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes most of a day for a typical house, less for a few frames. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Eel Pie Island. It helps if you can point us to a visitor permit or a bay close to the door.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Keep children and pets away from the work area
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
Towns and villages near Eel Pie Island
What else we do in Eel Pie Island
Eel Pie Island: your questions answered
Can parking be tricky for a visit in Eel Pie Island?
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.
Do you cover Eel Pie Island for window mastic?
Yes, Eel Pie Island is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Is the work guaranteed?
Yes, with our 12-month guarantee. A yearly look at the joints helps them last.
Can you reach windows above the ground floor?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
I’m a tenant. Can you help?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, 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.