West Sussex · England

Window & door mastic in Little London, West Sussex

Window mastic across Little London and nearby, with every bit of old sealant taken out first and a 12-month guarantee.

  • Leaking joints at the ends of sills
  • Damp patches on the reveal after heavy rain
  • Whistling draughts around closed windows

Window mastic in Little London

For landlords and businesses

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Window mastic in Little London

There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you have whistling draughts around closed windows and mastic that has split away from the wall, we can help, on patio & French doors, aluminium frames and uPVC windows alike.

Somewhere as small as Little London, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.

We stand behind the work with a one-year guarantee.

Location
Little London (RH17)
Wider area
West Sussex
Guarantee
A year, on every job
Quotes
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

The process

On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a morning for a couple of windows and a door, including the tidy-up. For a village or hamlet like Little London, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Each frame is looked over and we agree which ones need resealing.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. A flexible exterior sealant is applied in a colour to suit the frame.
  5. We tool each bead neatly and check every joint is closed.

Getting ready for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear the area around the work
  • Tell us about any previous sealing or DIY attempts

Get a quote

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved before giving you a price.

Ask for a quote

Advice

Little London: your questions answered

Do you cover Little London for window mastic?

Yes, Little London is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.

Will you come out to Little London?

Yes. Little London is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is there any odour?

It depends on the product. Some smell for a while, some hardly at all.

Can tenants book the work?

We can work for tenants, landlords or agents. Just make sure your landlord agrees.

What does window mastic cost?

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

Does someone need to be in?

It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.

Can resealing stop a draught around my window?

In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.

What do you put in the joint?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Window mastic in Little London: local notes

With historic houses such as Priest House (about 1.8 miles north-east) nearby, there’s older building stock in the area around Little London as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts 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 Balcombe station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near St Peter's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as St Peter's CofE Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

Little London is about 4 miles north of Haywards Heath, in West Sussex. If you need window mastic in Little London, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We’re based in Crawley and cover West Sussex, Little London included. Across West Sussex, we cover 371 places, Little London among them. We also work in Crawley, around 6 miles away.

All of RH17 is within our area for window mastic. We also cover the places around Little London: Ardingly (1 mile south), Highbrook (1 mile east), West Hoathly (2 miles north-east), Sharpthorne (2 miles north-east) and Selsfield Common (2 miles north). Larger places within reach include Crawley (6 miles north-west), Horsham (10 miles west), Haywards Heath (4 miles south), Burgess Hill (7 miles south), East Grinstead (6 miles north-east) and Broadfield (6 miles north-west).

Around Little London

Around Little London, our work takes us to homes and buildings near The Gardeners Arms and the streets around them. The closest station to Little London is Balcombe station, roughly 2.3 miles west. Other landmarks nearby include Princess Royal Hospital (4.6 miles south) and Waterbury Castle (2.5 miles south-east). Open spaces near Little London include Tilgate Lake and Blunts Wood and Paiges Meadow.

Map of Little London © OpenStreetMap contributors

Why it’s worth doing now in Little London

Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Where a wall is exposed, as many are in small places like Little London, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear price before we start.

Why Little London customers choose us

  • Any old sealant cut out fully, not covered over
  • Colour picked to suit the job
  • Tidy, careful work
  • Sanitary silicone with an anti-fungal additive in wet areas

See what affects the cost and customer reviews.

Surface by surface

Aluminium frames

Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.

Composite doors

Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

Quotes for window mastic in Little London

There’s no set price list, because jobs vary so much. What we look at:

  • Whether there’s mould to deal with
  • Any working-time requirements on site
  • The type of sealant required
  • How easy the joints are to reach

A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.

What we need to know

What to tell us when you ask for a quote:

  • How we’d reach the joints
  • The type of property
  • Pictures of the joints, sent by email
  • What’s wrong with the joints now

There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.

When something else is needed

We will always be straight with you, so here’s what new sealant will not do:

  • Worn gaskets, brush seals or a door that has dropped
  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Faulty window hardware

Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.

What we seal

  • Composite doors
  • Patio & French doors
  • Timber windows & doors
  • uPVC windows
  • Aluminium frames
  • Window sills
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job