Greater London · England
Window & door mastic in Palmers Green, Greater London
Our applicators work in Palmers Green on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Gaps left after new windows were fitted
What we are called out for in Palmers Green
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Any of these means the joints need attention:
- Cracked internal joints between frame and plaster
- Rain getting in at the frame or under the sill
- Mastic that’s falling out in pieces
- Cracked or shrunken mastic around the frame
If you live in an older home near Palmers Green United Reformed Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- Whether you can choose the colour
- What insurance they hold
- Whether VAT is included
- Which sealant they’ll use, and why
Window mastic in Palmers Green
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. We work on patio & French doors, uPVC windows and timber windows & doors, and people most often call us about cracked internal joints between frame and plaster and sealant in the wrong colour for the frame.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out.
All our work is covered by a 12-month guarantee.
- Place
- Palmers Green (N13, N22, N11)
- 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
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Landlord and commercial work in Palmers Green
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What the job involves on each surface
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We will point out any rot we find, as that is a job for a joiner.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Why deal with it now?
Failed mastic is not a reason to replace sound windows. Where the frames are sound, new mastic normally deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we’ll tell you. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Palmers Green.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why Palmers Green customers choose us
- 4.9 on Google from 180+ five-star reviews
- Trusted Arbo and Everbuild sealants
- A sealant colour to suit the surroundings
- Full insurance on every job
Take a look at our cost guide and our reviews.
The process
All our tools and materials come with us in the van. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours for a few frames, or a day or more for a whole house. In Palmers Green, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- 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.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
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Also near Palmers Green
Also in Palmers Green
Window mastic in Palmers Green: local notes
With historic houses such as Bruce Castle (about 1.9 miles south-east) nearby, there’s older building stock in the area around Palmers Green 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 it’s worth checking before booking.
If you look after a building such as St Anne's Catholic High School for Girls, the mastic around its windows and doors needs looking after like any other building’s. Palmers Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Palmers Green is about 6 miles north of St Pancras, in Greater London. Anywhere in N13, we cover window mastic for homes and businesses. Palmers Green is one of 764 places in Greater London we cover for window mastic. London is on our list too, around 8 miles away.
Work in N13, N22 and N11 is quoted and booked the same way as anywhere else. Streets in the area include Oak Lane, Fox Lane and York Road, all of which we cover. With the A105 and A1004 close by, Palmers Green is simple for us to get to. Neighbouring places we cover for window mastic include Oakthorpe Park (1 mile south-east), Arnos Grove (1 mile west), Bounds Green (1 mile south-west), Bowes Park (1 mile south) and Southgate (1 mile north-west). Further out, we also cover London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (9 miles south-west), St Pancras (6 miles south) and Shoreditch (6 miles south).
Local landmarks in Palmers Green
Locally, jobs take us to homes and businesses close to St Thomas More Catholic School, Broomfield Park and The Alfred Herring pub and the streets around them. Palmers Green has its own railway station: Palmers Green station. A little further out are Broomfield House Museum (under half a mile west) and Greentrees Hospital (0.6 miles south-east). Green spaces nearby include Highgate Hill and Darland's Lake.
Questions from Palmers Green
Do you cover Palmers Green for window mastic?
Yes. We work across London and the South East, and Palmers Green is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
Do you work for landlords with property near Palmers Green station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How do I get a quote for window mastic in Palmers Green?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or drop us an email with a short description of the job.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
How long should I leave it?
Cure times vary by product and the temperature. Before we leave, we will tell you the cure time.
Keeping the joints in good condition
Aftercare is simple:
- Avoid blasting the frames with a pressure washer
- Look round the frames every year or so
- Keep paint off silicone joints
- Use gentle cleaners on frames and sealant
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 sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.