West Sussex · England

Pyecombe Window Mastic

Mastic around window and door frames, sills and patio doors in Pyecombe, with a one-year guarantee on every job. Ask us for a quote.

  • Cracked internal joints between frame and plaster
  • Gaps where the sill meets the wall
  • Cold air getting in at the frame edge

Window mastic in Pyecombe

What happens if it’s left?

Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic normally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. In a small place like Pyecombe, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Why us?

  • 12-month guarantee on every job
  • Rated 4.9 stars on Google
  • ARBOMaster approved applicator
  • White, clear, grey or coloured to suit, where the product allows

Take a look at our cost guide and customer reviews.

Window mastic in Pyecombe

A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have cracked or shrunken mastic around the frame and rain getting in at the frame or under the sill, we can help, whatever the surface.

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

Every job comes with our 12-month guarantee.

Where
Pyecombe (BN45)
Wider area
West Sussex
Cover
A year, on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

How we quote for window mastic

You’ll get a clear quote before any work starts. It’s based on:

  • The type of sealant required
  • Whether there’s mould to deal with
  • The old material and how stubborn it is
  • The size of the job

A failed joint rarely gets cheaper to fix by waiting. If you are unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.

Asking for a quote

Before you ask for a quote, have a think about:

  • Where the job is, and your postcode
  • Roughly how big the job is
  • Pictures of the joints, sent by email
  • Any previous sealing or DIY work

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

FAQs for Pyecombe

Will you come out to Pyecombe?

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

Can you help a landlord with a rental near Hassocks station?

Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What do you put in the joint?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.

Do I need to be at home?

If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.

Do you hold any approvals?

Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.

How long before the joint can be used?

Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.

Do the sealants smell?

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

DIY sealant or a professional job?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

What we do, step by step

All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes most of a day for a typical house, less for a few frames. In a small place like Pyecombe, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by checking each window and door with you.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. Where gaps are deep, backing rod goes in first.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Finally we tidy up and check each joint.

How to prepare

  • Let us know if you’ve seen damp or leaks
  • Let us know about stairs, lifts or work at height
  • Mention any parking rules near the property

Getting a quote

We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.

Get a price

Advice

Signs you need window mastic in Pyecombe

Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.

People usually contact us after spotting something like this:

  • Cracked or shrunken mastic around the frame
  • Untidy mastic left by window fitters
  • Cold air getting in at the frame edge
  • White mastic on grey or black frames

For an older house near a landmark such as Church of the Transfiguration, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Before booking anyone

  • Who turns up on the day
  • How long to leave it before use
  • What preparation is included
  • Is the old sealant removed completely?

10 questions to ask before booking

Window mastic in Pyecombe: local notes

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 like Preston Manor & Gardens (about 4 miles south) are a reminder that the area around Pyecombe has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.

Letting a property close to Hassocks station? Then renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Downlands Community School? Then its window and door frames need their mastic kept sound, just like a home’s.

Pyecombe is about 4 miles south of Burgess Hill, in West Sussex. Homes, rented property, offices and hotels in Pyecombe can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our West Sussex coverage runs to 371 places, and Pyecombe is one of them.

Work in BN45 works the same way as everywhere else we cover. You’ll find streets such as London Road, School Lane and Church Hill. Close by, we work in Saddlescombe (1 mile south-west), Waterhall (2 miles south), Patcham (3 miles south), Westdene (3 miles south) and Hollingbury (3 miles south-east). Within a short drive, we also cover Crawley (15 miles north), Horsham (13 miles north-west), Worthing (12 miles south-west), Haywards Heath (7 miles north-east), Burgess Hill (4 miles north) and Shoreham-by-Sea (6 miles south-west).

Local landmarks in Pyecombe

Pyecombe’s nearest station is Hassocks station, roughly 1.9 miles north-east. A little further out are Clayton Castle (1 mile north-east) and The Budding Foundation Museum of Gardening (1.7 miles north). Green spaces nearby include Wolstonbury Hill and Ladies Mile.

Map of Pyecombe © OpenStreetMap contributors

Aftercare tips

A little care helps the new joints last. We recommend:

  • Don’t paint over the silicone
  • Ventilate rooms so frames do not stay wet inside
  • Make sure the drainage slots are not blocked
  • Check the mastic once a year

Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.

Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.

When something else is needed

Before booking, it’s worth knowing the limits:

  • Damp coming through the wall itself rather than the frame joint
  • A door that needs adjusting, rehanging or new seals
  • Broken hinges, locks or handles

If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.

Joints and surfaces we work on

  • Timber windows & doors
  • Patio & French doors
  • uPVC windows
  • Composite doors
  • 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