Greater London · England
Tottenham Window Mastic
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Tottenham. Fully insured, ARBOMaster approved and guaranteed for a year.
- Draughty joints inside around the window
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
What we’re called out for in Tottenham
Frames are never completely still. 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.
The most common problems we see are:
- Cracked sealant at the sill ends
- Draughty joints inside around the window
- Mastic that has split away from the wall
- Rushed sealant from a window installation
If you look after a building such as The Mulberry Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- What the quote includes, VAT included or not
- Whether they’re fully insured
- Who turns up on the day
- Is the old sealant removed completely?
Window mastic for homes and businesses in Tottenham
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on window sills, uPVC windows and composite doors, and common reasons people get in touch are draughty joints inside around the window and mastic that has split away from the wall.
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, which is when draughts and damp patches appear in homes in Tottenham.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Tottenham (N17, N15, N18)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Tottenham
Letting agents and landlords in Tottenham 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’ll quote.
Common questions in Tottenham
Can you do window mastic in Tottenham?
Yes, Tottenham is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Can parking be tricky for a visit in Tottenham?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
What does window mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and resealing inside and out closes it.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
How it works
We keep the work tidy and contained to the joints we are treating. The job normally takes a morning for a couple of windows and a door. 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.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
How to get a quote
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 add pictures by email if you can.
Related advice
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Worn gaskets, brush seals or a door that has dropped
- Broken hinges, locks or handles
- A frame that has rotted at the joint
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Patio & French doors
- uPVC windows
- Aluminium frames
- Window sills
- Composite doors
- Timber windows & doors
Window mastic in Tottenham: local notes
With historic houses such as Bruce Castle (about 0.3 miles west) nearby, there’s older building stock in the area around Tottenham as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Bruce Grove station, renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Tottenham is about 6 miles north-east of Marylebone, in Greater London. We provide window mastic to homes and businesses in Tottenham and nearby. Our Greater London coverage runs to 764 places, and Tottenham is one of them. For nearby work, see our London page.
All of N17, N15 and N18 is within our area for window mastic, from the main roads to the quietest streets. Streets in the area include New Road, High Road and Reed Road, all of which we cover. Being close to the A10, Tottenham is simple for us to get to. We also cover the places around Tottenham: Broadwater Farm (1 mile west), Tottenham Hale (1 mile south-east), Tottenham Green (1 mile south), South Tottenham (1 mile south) and Seven Sisters (1 mile south). Further out, we also cover London (7 miles south), City of Westminster (7 miles south-west), Marylebone (6 miles south-west), Kensington (9 miles south-west), St Pancras (5 miles south-west) and Shoreditch (5 miles south).
Landmarks near Tottenham
In Tottenham, that means homes and buildings near Bruce Castle Park, The John Loughborough School and Northumberland Park Community School. Tottenham has its own railway station: Bruce Grove station. Well-known places in the area include North Middlesex University Hospital (1.1 miles north) and Markfield Beam Engine and Museum (1.1 miles south). Green spaces nearby include Highgate Hill and Railway Fields.
Nearby places to Tottenham
What else we do in Tottenham
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
A careful DIYer can reseal a simple joint, 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.
How the job changes by surface
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as that is a job for a joiner.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. We use a neutral-cure product.
What happens if it’s left?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Converted houses in London often have a bathroom above someone else’s living room, 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.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Colour picked to suit the job
- Anti-fungal silicone where joints get wet
- You choose the colour before work begins
Read what affects the cost and our reviews.