Greater London · England

Window Mastic in West Hackney

Specialist window mastic for West Hackney: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Sealant in the wrong colour for the frame
  • Cracked sealant at the sill ends
  • Cracked or shrunken mastic around the frame

Book window mastic in West Hackney

About our window mastic in West Hackney

Homes in West Hackney have every kind of window: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. If you are dealing with a bead that doesn’t match the frame and cracked internal joints between frame and plaster, we can help, on patio & French doors, uPVC windows and window sills 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.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

Applicator reaching up to seal an external door frame on a sunny day
Place
West Hackney (N16, E5, E8)
Region
Greater London
Guarantee
12 months on all our work
Quote
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026

What sealant work can’t fix

Sealant is not the answer to every problem, and we will tell you before we start. Sealant will not put right:

  • Damp coming through the wall itself rather than the frame joint
  • Worn gaskets, brush seals or a door that has dropped
  • A frame that has rotted at the joint

If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

What we seal

  • Timber windows & doors
  • Window sills
  • Patio & French doors
  • uPVC windows
  • Composite doors
  • Aluminium frames

West Hackney: your questions answered

Do you work for landlords with property near Rectory Road station?

Yes. We work for landlords and letting agents as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.

Can you do window mastic in West Hackney?

Yes, West Hackney is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.

How long before the joint can be used?

That depends on the sealant used, so please follow the time we give you when we finish.

Do you remove the old sealant?

Yes. We cut out all the old sealant and clean the joint.

Do you work on first-floor windows?

Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.

Can new window sealant be painted?

Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.

Do the sealants smell?

It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.

Is it worth trying it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

What we do, step by step

We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. The job normally takes a morning for a couple of windows and a door. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in West Hackney. It helps if you can point us to a visitor permit or a bay close to the door.

  1. We start by checking each window and door with you.
  2. We remove the old mastic and clean the frame and the wall.
  3. Deep gaps are filled with backing rod to set the depth.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Finally we tidy up and check each joint.

How to prepare

  • Mention any tricky access
  • Tell us if parking is tricky
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.

Ask for a quote

Related advice

How the job changes by surface

uPVC windows

uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.

Patio & French doors

Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that, where a rigid one would crack.

Why it’s worth doing now in West Hackney

The work is quick compared with the damage it prevents: it takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in West Hackney, the repair is bigger than the sealant job would have been.

Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

What you get with us

  • Arbo and Everbuild products
  • Domestic, commercial and hotel work
  • Old sealant always removed completely
  • You choose the colour before work begins

See our cost guide and customer reviews.

Aftercare tips

A little care helps the new joints last. Our advice:

  • Ventilate rooms so frames don’t stay wet inside
  • Avoid harsh chemicals near the mastic
  • Avoid blasting the frames with a pressure washer
  • Clear any debris from frame drain holes

Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.

Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.

Signs you need window mastic in West Hackney

Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.

These are the problems we’re asked about most:

  • Sealant in the wrong colour for the frame
  • Mastic that’s falling out in pieces
  • Leaking joints at the ends of sills
  • Gaps left after new windows were fitted

As a London address, West Hackney can be tricky for parking: let us know about parking bays, permits or a driveway.

What your quote should include

  • Is the old sealant removed completely?
  • Who does the work, and how experienced they are
  • What happens if they find a problem under the old sealant
  • The length of the guarantee

Our hiring checklist

Work for landlords, hotels and businesses

Landlords and agents in West Hackney can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.

If you manage several properties in or around West Hackney, several properties can be quoted together. Just tell us the addresses and what each one needs.

Frames and glazing around West Hackney

With historic houses such as Sutton House (about 1.2 miles south-east) nearby, there’s older building stock in the area around West Hackney 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.

Homes close to St Michael and All Angels include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like Benthal Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.

West Hackney is about 4 miles north of London, in Greater London. Whether you are in the middle of West Hackney or further out, we cover window mastic for every kind of property. Our Greater London coverage runs to 764 places, and West Hackney is one of them.

Work in N16, E5 and E8 is quoted and booked the same way as anywhere else. We cover properties on Muir Road, Burma Road and Piano Lane. West Hackney sits on or near the A107. If you are just outside West Hackney, we cover Shacklewell (1 mile south), Stoke Newington (1 mile west), Clapton (1 mile east), Stamford Hill (1 mile north) and Upper Clapton (1 mile north-east). Further out, we also cover London (4 miles south), City of Westminster (5 miles south-west), Marylebone (4 miles south-west), Kensington (7 miles south-west), St Pancras (3 miles south-west) and Walthamstow (3 miles north-east).

Local landmarks in West Hackney

Locally, jobs take us to homes and businesses close to The Coach And Horses Public House, Tawhid Boys School and Stoke Newington Common. Other local landmarks include Church of St Andrew (0.8 miles north-west) and The Petchey Academy (0.5 miles south). West Hackney has its own railway station: Rectory Road station. Nearby you will also find Montfichet's Tower (3.5 miles south-west) and Clowns Gallery-Museum (1.1 miles south). Not far away are Woodberry Wetlands and Hollow Pond.

Map of West Hackney © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job