Greater London · England
Tufnell Park Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Tufnell Park and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mastic that’s falling out in pieces
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
How we handle window mastic in Tufnell Park
The new joint does not have to be white. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. We work on uPVC windows, window sills and composite doors, and people most often call us about mastic that’s falling out in pieces and leaking joints at the ends of sills.
Many London homes are flats, with windows high above the street. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Tufnell Park is something to talk through when you book.
Each job carries a 12-month guarantee.
- Location
- Tufnell Park (NW5, N19, N7)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
Sealant is not the answer to every problem, and we will tell you before work begins. It won’t solve:
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
- Penetrating damp from a failed cavity tray or render
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Aluminium frames
- Window sills
- Patio & French doors
- Composite doors
- uPVC windows
- Timber windows & doors
Windows and doors in Tufnell Park
In a converted house or block, who looks after the windows depends on the lease, so check that before you book. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
As a London address, Tufnell Park can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For landlords with property near Upper Holloway station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. If you look after a building such as Eleanor Palmer Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Tufnell Park is about 2 miles west of Highbury, in Greater London. Anywhere in NW5, we cover window mastic for homes and businesses. 764 places in Greater London are on our list, from the larger towns to small villages.
Every address in NW5, N19 and N7 is within our area for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Hugo Road, Ward Road and Anson Road. If you are just outside Tufnell Park, we cover Dartmouth Park (1 mile west), Upper Holloway (1 mile north), Gospel Oak (1 mile west), Lissenden Gardens (1 mile west) and Holloway (1 mile east). Within a short drive, we also cover London (4 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (5 miles north-east).
What’s near Tufnell Park
Around Tufnell Park, our work takes us to homes and buildings near Musical Theatre Academy, The Boston Arms Public House and Vaughan Williams Memorial Library. You will also find Acland Burghley School (under half a mile west) and Whittington Park (under half a mile north-east). For rail, the closest station is Upper Holloway station, about 0.5 miles north-east of the centre. Nearby you will also find Royal Northern Hospital (0.5 miles north-east) and Montfichet's Tower (3.3 miles south-east). Open spaces near Tufnell Park include St. James's Park Lake and Dartmouth Park Hill.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Common questions in Tufnell Park
Can you do window mastic in Tufnell Park?
Yes. We work across London and the South East, and Tufnell Park is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Can parking be tricky for a visit in Tufnell Park?
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.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit. You’ll get a timescale with the quote.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or send us an email.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Can new window sealant be painted?
That depends on the product. Some hybrid sealants can be painted; silicone cannot. Tell us if you’re decorating and we’ll choose accordingly.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Keep drainage slots and sill grooves clear
- Wash the frames with mild soapy water
- Paint up to the joint, not over it
- Repaint timber before it’s bare
Check the drainage slots in the frames aren’t blocked, so water can run away instead of sitting against the joint.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Why act early in Tufnell Park
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. 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.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why book with us
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
- An ARBOMaster approved applicator
See what affects the cost and what customers say.
Nearby places to Tufnell Park
Other services in Tufnell Park
What the job involves on each surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain can’t run into the wall.
How the visit works
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of frames, longer for a whole house. For a job in Tufnell Park, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Related advice
Landlord and commercial work in Tufnell Park
If you manage several properties in or around Tufnell Park, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.