Greater London · England
Window & door mastic in Silvertown, Greater London
Window mastic for Silvertown, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps between the frame and the inside reveal
- Sealant in the wrong colour for the frame
- Gaps where the sill meets the wall
About our window mastic in Silvertown
If you can feel air around a shut window, the gap is often at the frame. 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. Typical jobs include gaps left after new windows were fitted and a bead that doesn’t match the frame, across window sills, uPVC windows and timber windows & doors.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Silvertown as anywhere.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Place
- Silvertown (E16, SE10, SE7)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Why it’s worth doing now in Silvertown
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. Problems with the glass or gaskets are for a window company, and we’ll say so. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
- We never seal over old sealant
- Colour agreed with you before we start
Take a look at how sealant jobs are priced and our reviews.
Frames and glazing around Silvertown
With historic houses such as Queen's House (about 1.9 miles south-west) nearby, there’s older building stock in the area around Silvertown as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.
As a London address, Silvertown can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. If you live in an older home near St Barnabas' Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Silvertown is about 1 mile south of Canning Town, in Greater London. We carry out window mastic for homes and businesses in Silvertown, as part of our work across Greater London. Across Greater London, we cover 764 places, Silvertown among them.
Here we cover the E16, SE10 and SE7 postcode area for window mastic. If you need window mastic at a property on Booth Road, Thames Road and Knights Road or a nearby road, we can help. If you are just outside Silvertown, we cover West Silvertown (1 mile north-west), Custom House (1 mile north), Royal Docks (1 mile north-east), Canning Town (1 mile north) and Limmo Peninsula (1 mile north-west). We also work in nearby towns such as London (5 miles west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (10 miles west), St Pancras (7 miles west) and Shoreditch (5 miles west).
What’s near Silvertown
Locally, jobs take us to homes and businesses close to Anchor & Hope pub, Thames Barrier Park and The Royal Docks Community School, among other places. The nearest railway station is Custom House station, roughly 0.7 miles north of the centre. A little further out are Charlton Athletic Museum (1 mile south) and Gallions Reach Shopping Park (2.3 miles east). Green spaces nearby include Tower Hill and Gilbert's Pit.
Silvertown: your questions answered
Is parking a problem for a job in Silvertown?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Is Silvertown in your area for window mastic?
Yes. Our work covers London and the South East, and Silvertown is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is the work guaranteed?
Yes. Every job comes with our 12-month guarantee, and we’re fully insured.
What sealant work cannot fix
In fairness, some problems need a different trade:
- Soft or decayed wood in the frame
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- uPVC windows
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
- Patio & French doors
When to call us in Silvertown
Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that’s falling out in pieces
- Water coming in at the bottom corners of a door
- Gaps left after new windows were fitted
- A bead that doesn’t match the frame
Letting a property close to Custom House station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- How the joint is cleaned and prepared
- How much experience the applicator has
- Which colour the sealant will be
- How long the guarantee is
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- 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.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Read more
Towns and villages near Silvertown
Other services in Silvertown
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What affects the quote in Silvertown
We do not publish a price list, because jobs vary so much. What we look at:
- The size of the job
- The type of sealant required
- Working hours on commercial sites
- How easy the joints are to reach
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- A few pictures by email, if you can
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear price.