East Sussex · England

South Chailey Window Mastic

We cover South Chailey for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.

  • Gaps where the sill meets the wall
  • Hard, cracked sealant around windows
  • Draughts coming in around windows and doors

Window mastic near South Chailey

Window mastic in South Chailey, done properly

The new joint doesn’t 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 are often asked to deal with leaking joints at the ends of sills and sealant in the wrong colour for the frame, on patio & French doors, aluminium frames and composite doors.

In a village or hamlet like South Chailey, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.

Whatever the size of the job, you get the same 12-month guarantee.

Location
South Chailey (BN8)
Wider area
East Sussex
Cover
One year on every job
Price
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

How it works

Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as South Chailey, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  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

  • Try not to wet indoor joints just before the visit
  • Mention if the joints have been sealed before
  • Let us know about parking restrictions

Getting a quote

For window mastic in South Chailey, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

Get a quick quote

Read more

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

FAQs for South Chailey

Can you do window mastic in South Chailey?

Yes, South Chailey is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.

Will you come out to South Chailey?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you guarantee window mastic?

Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.

Is it messy?

We keep the work tidy. Nearby surfaces are protected.

Do you work for landlords and businesses?

Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.

How long should I leave it?

Cure times vary by product and the temperature. We tell you how long to leave it before we go.

Are you fully insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

How much does window mastic cost in South Chailey?

Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email and tell us what needs doing and where.

Frames and glazing around South Chailey

With historic houses such as Anne of Cleves House (about 5 miles south) nearby, there’s older building stock in the area around South Chailey as well as newer homes. Where a home is older, 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Historic houses such as Anne of Cleves House, about 5 miles south, show how far back building around South Chailey goes. For landlords with property near Plumpton station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

South Chailey is about 4 miles north of Lewes, in East Sussex. South Chailey gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across East Sussex, we cover 289 places, South Chailey among them. We also work in Brighton, around 9 miles away.

All of BN8 is within our area for window mastic. Local streets include Mill Brooks, Whitegates Close and Brickyard Lane. If you are just outside South Chailey, we cover South Street (1 mile north), Chiltington (1 mile south), Chailey (2 miles north-east), East Chiltington (2 miles south-west) and Plumpton Green (2 miles west). Within a short drive, we also cover Seaford (13 miles south-east), Lewes (4 miles south), Hailsham (13 miles south-east), Crowborough (11 miles north-east), Uckfield (6 miles east) and Newhaven (11 miles south).

What’s near South Chailey

Typical jobs here are in homes near Swan Public House and the streets around them. For rail, the closest station is Plumpton station, roughly 1.7 miles south-west. Nearby you’ll also find Lewes Castle (4.8 miles south) and Lewes Victoria Hospital (4.5 miles south). For a walk, there’s Blackcap and Malling Down.

Map of South Chailey © OpenStreetMap contributors

Why deal with it now?

Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Where a wall is exposed, as many are in small places like South Chailey, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.

Why South Chailey customers choose us

  • Every job guaranteed for a year
  • Anti-fungal silicone where joints get wet
  • Full insurance on every job
  • We leave the area clean and tidy

Read what affects the cost and our reviews.

Aftercare tips

After the cure time, these simple habits help:

  • Clean frames with a soft cloth and soapy water
  • Keep paint and stain on wooden frames in good order
  • Don’t use solvent cleaners on the joint
  • Check the mastic once a year

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

Leaks usually show up in wet, windy weather, 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.

When it is not the sealant

In fairness, there are a few things sealant will not fix:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Broken hinges, locks or handles
  • Rotten timber, which needs a joiner first

If in doubt, call 0345 464 0079 or email us and we will say what we think.

Surfaces we seal

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

What we are called out for in South Chailey

A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.

Look out for any of the following:

  • Rain getting in at the frame or under the sill
  • Mastic that’s falling out in pieces
  • Whistling draughts around closed windows
  • Leaking joints at the ends of sills

For site and facilities teams at buildings such as Chailey School, the mastic around its windows and doors needs looking after like any other building’s.

What your quote should include

  • How long to leave it before use
  • How the surfaces are prepared before sealing
  • The length of the guarantee
  • Who does the work, and how experienced they are

10 questions to ask before booking

Quotes for window mastic in South Chailey

We do not publish a price list. What we look at:

  • The type of sealant required
  • When we can work, for business premises
  • Whether the work is at height
  • Any mould that needs treating

Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.

What to tell us for a quote

Photos help, but a description is a good start. Please mention:

  • Roughly how big the job is
  • Whether it has been sealed before
  • What the problem is, such as mould, gaps, leaks or cracking
  • A few photos by email, if you can

Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

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