Greater London · England

Window & door mastic in Turnham Green, Greater London

Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Turnham Green. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Leaking joints at the ends of sills
  • Gaps between the frame and the inside reveal
  • Gaps left after new windows were fitted

Window mastic near Turnham Green

What affects the quote in Turnham Green

Your quote is based on your job. We take into account:

  • Which sealant suits the joint
  • The number of rooms or windows
  • Mould in or behind the old joints
  • Access and height

We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.

What to tell us for a quote

Photos by email are helpful but not essential. Try to tell us:

  • Where the job is, and your postcode
  • A few photos by email, if you can
  • If it’s domestic, commercial or a hotel
  • How we’d reach the joints

For window mastic in Turnham Green, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.

Window mastic for homes and businesses in Turnham Green

There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you have cracked or shrunken mastic around the frame and old mastic that has gone black or come away, we can put it right.

London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease normally says who is responsible for the windows, so it’s worth checking before booking.

All of our work is guaranteed for twelve months, in Turnham Green and everywhere else we cover.

Applicator reaching up to seal an external door frame on a sunny day
Where
Turnham Green (W4, SW13, W6)
Region
Greater London
Guarantee
12 months on all our work
Quotes
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

What we are called out for in Turnham Green

Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.

Any of these means the joints need attention:

  • Gaps left after new windows were fitted
  • Draughts coming in around windows and doors
  • Gaps where the sill meets the wall
  • Gaps between the frame and the inside reveal

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

Comparing quotes

  • Whether VAT is included
  • Whether all the old sealant comes out first
  • What the cure time is
  • What product goes in the joint

How to choose a mastic man

Turnham Green questions

Is parking a problem for a job in Turnham Green?

Parking in Turnham Green, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.

Do you cover Turnham Green for window mastic?

Yes. We work across London and the South East, and Turnham Green is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.

What do you need from me for a quote?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

Can new sealant go over the old?

No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.

Is the work guaranteed?

Yes, with our 12-month guarantee. A yearly look at the joints helps them last.

How many windows can you do in a day?

That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.

Are you insured?

Yes, we are fully insured for every job we do.

What does window mastic cost?

Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or send us an email with a short description of the job.

What the job involves on each surface

Patio & French doors

Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.

Window sills

Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.

How to look after the new joints

To keep the joints looking good and working properly:

  • Air rooms to keep condensation down around windows
  • Wash the frames with mild soapy water
  • Walk round the house once a year and look at the joints
  • Avoid blasting the frames with a pressure washer

Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.

Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.

Frames and glazing around Turnham Green

In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. 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.

For landlords with property near Chiswick station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like The William Hogarth Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.

Turnham Green is about 2 miles south of Acton, in Greater London. Wherever you are in the W4 postcode area, our applicators can take on window mastic. Turnham Green is one of 764 places in Greater London where we work for window mastic. For nearby work, see our London page, about 7 miles away.

We cover every part of the W4, SW13 and W6 postcode area for window mastic. Whether your property is on Duke Road, Short Road and Binns Road or anywhere close by, our applicators can take on the job. We also cover Old Chiswick (1 mile east), Chiswick (1 mile north), Grove Park (1 mile south-west), Barnes (1 mile south-east) and Kew (1 mile west). Larger places within reach include London (7 miles east), City of Westminster (5 miles north-east), Marylebone (5 miles north-east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).

Landmarks near Turnham Green

In Turnham Green, that means homes and buildings near Polish Library POSK in London, George and Devonshire pub and The Swedish School. Nearby too are Chiswick School (within half a mile south-west) and Dukes Meadows (0.8 miles south-west). Turnham Green’s nearest station is Chiswick station, roughly 0.7 miles south-west of the centre. Well-known places in the area include Kurdish Museum Library and Archive (0.9 miles north-east) and Barnes Hospital (1.3 miles south). The countryside around Turnham Green includes Campden Hill and Duke's Hollow.

Map of Turnham Green © OpenStreetMap contributors

How it works

Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from an hour or two to a full day, depending on how many frames there are. In Turnham Green, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.

  1. First we look at every frame and agree the list.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. We clear up and check every joint is fully closed.

Getting ready for the visit

  • Mention any leaks or damp you’ve noticed
  • For business premises, tell us about site rules or sign-in
  • Clear the area around the work

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.

Get a price

Advice

Should I try it myself first?

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

Leave it or put it right?

Resealing frames is a short job: the visit takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Turnham Green, the repair is bigger than a sealant job.

Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

Why book with us

  • Any old sealant cut out fully, not covered over
  • Experience in homes, commercial sites and hotels
  • Neat joints and a tidy finish
  • Sealant colour chosen to suit

See our cost guide and what customers say.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job