Greater London · England
Victoria Window Mastic
We cover Victoria for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Cold air getting in at the frame edge
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
What the job involves on each surface
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We will tell you if that is what we find.
How we handle window mastic in Victoria
From a single sill to a whole house of windows, you will get a clear quote before any work starts. Just ring 0345 464 0079 or email us and tell us how many frames there are and how they’re reached. If you have cracked internal joints between frame and plaster and untidy mastic left by window fitters, we can help, on uPVC windows, composite doors and aluminium frames alike.
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.
We stand behind the work with a 12-month guarantee.
- Place
- Victoria (SW1V, SW1P, SW1X)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
Before you book, it’s worth knowing the limits too:
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- uPVC windows
- Composite doors
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
Work for landlords, hotels and businesses
Landlords and agents in Victoria can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Common questions in Victoria
Can you do window mastic in Victoria?
Yes. We work across London and the South East, and Victoria is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Do you work for landlords with property near London Victoria station?
Yes. We work for letting agents and landlords as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Are you insured?
Yes. We’re fully insured.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal.
How long before the joint can be used?
Cure times vary by product. Before we leave, we will tell you the cure time.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
What affects the quote in Victoria
Some jobs are bigger than they look, and some smaller. The main factors:
- Any mould that needs treating
- The amount of work
- Working hours on commercial sites
- How easy the joints are to reach
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Helping us quote
To help us quote quickly, please include:
- Where the property is
- The problem you’ve noticed
- The rough size of the job
- Access, such as stairs, a lift or height
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Windows and doors in Victoria
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.
Rented homes near London Victoria station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like St Peter's Eaton Square CofE Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Victoria is about 1 mile south of City of Westminster, in Greater London. We carry out window mastic for householders, landlords and businesses in Victoria and nearby. Our area takes in 764 places across Greater London, from the larger towns to small villages.
Every address in SW1V, SW1P and SW1X is within our area for window mastic, from the main roads to the quietest streets. You’ll find streets such as Eaton Lane, Gerald Road and Wilton Road. Main roads around Victoria include the A202 and A302, so getting to you is simple. Other places close to Victoria include Belgravia (1 mile north-west), Pimlico (1 mile south-east), Westminster (1 mile north-east), Millbank (1 mile north-east) and Brompton (1 mile west). Within a short drive, we also cover Shoreditch (4 miles north-east), Walthamstow (8 miles north-east), Hoxton (4 miles north-east), Whitechapel (4 miles north-east), Hampstead (4 miles north) and Ruislip (13 miles north-west).
Local landmarks in Victoria
Locally, jobs take us to homes and businesses close to Westminster Cathedral Choir School, Wetherspoons pub and Green Park. Nearby too are Westminster City School (under half a mile north-east) and London Library (0.9 miles north). Victoria has its own railway station: London Victoria station. Nearby you’ll also find Baynard's Castle (2.2 miles north-east) and Harrods (0.9 miles west). For a walk, there’s Ludgate Hill and St. James's Park Lake.
Do you need window mastic in Victoria?
Every frame moves through the day. 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.
Keep an eye out for any of the following:
- Draughts coming in around windows and doors
- Gaps where the sill meets the wall
- Rain getting in at the frame or under the sill
- Old mastic that has gone black or come away
If you live in an older home near St. Michael's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- Which sealant they’ll use, and why
- Whether they’re fully insured
- Who does the work, and how experienced they are
- How hidden problems are handled
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes a morning for a couple of windows and a door. In a London area like Victoria, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
How to get a quote
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Related advice
Places near Victoria
What else we do in Victoria
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Victoria, the repair is bigger than a sealant job.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What you get with us
- Rated 4.9 stars on Google
- We agree the colour with you first
- White, clear, grey or coloured to suit, where the product allows
- Quality sealants from Arbo and Everbuild