Greater London · England
Window & door mastic in London Docklands, Greater London
Mastic around window and door frames, sills and patio doors for London Docklands, backed by a one-year guarantee. Ask us for a quote.
- Rushed sealant from a window installation
- Old mastic that has gone black or come away
- Leaking joints at the ends of sills
Window mastic in London Docklands, done properly
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we’ll say so. Common call-outs are for hard, cracked sealant around windows and cold air getting in at the frame edge, on window sills, aluminium frames and composite 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.
Each job carries a 12-month guarantee.
- Where
- London Docklands (E14, SE16, E22)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a flat in London Docklands, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What you get with us
- We never seal over old sealant
- White, clear, grey or coloured to suit, where the product allows
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
Also near London Docklands
More services for London Docklands
The process
The work is kept neat and contained to the area we are working on. The job 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 London Docklands. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
Ask for a quote
For window mastic in London Docklands, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
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Landlord and commercial work in London Docklands
Housing providers, facilities teams and property managers book us too in London Docklands and across Greater London. Several sites can go on one quote, and we’re fully insured.
Landlords and letting agents in London Docklands can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
What window mastic looks like in London Docklands
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. With historic houses such as Queen's House (about 1.8 miles south) nearby, there’s older building stock in the area around London Docklands as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Tower Hamlets College are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as St Peter's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
London Docklands is about 2 miles north-west of Greenwich, in Greater London. Whether you’re in the middle of London Docklands or further out, window mastic is available for homes and businesses alike. Our area takes in 764 places across Greater London, large and small.
Here we cover the E14, SE16 and E22 postcode area for window mastic. We cover properties on Castor Lane, Cassilis Road and Dockyard Lane and the roads around them. Main roads around London Docklands include the A1206 and A1261. We also cover Canary Wharf (1 mile west), Poplar (1 mile north), Heron Quays (1 mile south-west), Coldharbour (1 mile east) and Blackwall (1 mile east). Larger places within reach include London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (3 miles north-west).
What’s near London Docklands
Typical jobs here are in homes near Sir John McDougall Gardens, Our Lady and St Joseph Catholic Primary School and The Ledger Building pub and the streets around them. There’s a railway station in London Docklands itself: Canary Wharf station. Other landmarks nearby include Greenwich Castle (2 miles south) and Surrey Quays Shopping Centre (1.4 miles south-west). Green spaces nearby include St. James's Park Lake and Lavender Pond.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Wipe condensation off the frames
- Keep solvents and bleach off the sealant
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Common problems we fix in London Docklands
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Any of these means the joints need attention:
- Whistling draughts around closed windows
- Mastic that is falling out in pieces
- Leaking joints at the ends of sills
- A bead that doesn’t match the frame
London Docklands is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Before you book anyone
- Whether all the old sealant comes out first
- Who turns up on the day
- What guarantee comes with the work
- What preparation is included
Quotes for window mastic in London Docklands
Jobs vary more than people expect. What affects the quote:
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Asking for a quote
When you call or email, it’s useful to know:
- Photos by email, if that is easy
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
Want a quote for window mastic? Please ring 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
FAQs for London Docklands
Is London Docklands in your area for window mastic?
Yes, London Docklands is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Can parking be tricky for a visit in London Docklands?
Parking in London Docklands, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Is the work guaranteed?
Yes. Every job comes with our one-year guarantee, and we’re fully insured.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
What do you need from me for a quote?
Let us know what needs doing and where, plus pictures if you have them. We’ll ask anything else we need to know.
How much does window mastic cost in London Docklands?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before we start.
Will resealing my frames help with draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Where do you work from?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.