West Sussex · England

Sand mastic for sash & case windows in Woodmancote, West Sussex

Sand mastic in Woodmancote from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Cracked mastic round a front door frame
  • Old cement repairs round a window that have failed
  • Tired mastic found when preparing windows for paint

Sand mastic for Woodmancote homes and businesses

How we handle sand mastic in Woodmancote

Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice and we can swap the silicone for it. If you have gaps between timber frames and stone or brick and wind and rain getting in round a sash window, we can help, whatever the surface.

Around Woodmancote, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

There’s a 12-month guarantee on every job, whatever its size.

Location
Woodmancote (BN5)
Wider area
West Sussex
Guarantee
A year, on every job
Price
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What we cannot put right

We won’t take on work that won’t last, so here’s what sealant can’t put right:

  • Sashes that need overhauling
  • Decisions on consent for listed homes
  • Timber that has rotted

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

Joints and surfaces we work on

  • Stone surrounds
  • Brick reveals
  • Tenement windows
  • Sash and case windows
  • Timber door frames
  • Period & listed homes

What sand mastic looks like in Woodmancote

London and the South East are among the drier parts 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 Hassocks station, any sash windows need sound mastic to keep draughts and rain out. For an older house near a landmark such as The Parish Church of St Peter, the joint between an old wall and a newer frame is normally the first place rain gets in.

Woodmancote is about 6 miles south-west of Burgess Hill, in West Sussex. Anywhere in BN5, our applicators can take on sand mastic. Our area takes in 371 places across West Sussex, large and small. For nearby work, see our Brighton page, about 8 miles away.

We work across BN5 for sand mastic and the streets around it. Other places close to Woodmancote include Blackstone (1 mile north-east), Small Dole (2 miles south-west), Henfield (2 miles north-west), Albourne (2 miles north-east) and High Cross (2 miles north-east). Further out, we also cover Crawley (14 miles north), Horsham (11 miles north), Worthing (9 miles south-west), Haywards Heath (8 miles north-east), Burgess Hill (6 miles north-east) and Littlehampton (15 miles south-west).

Local landmarks in Woodmancote

We work in homes and buildings around Tottington Wood. The closest station to Woodmancote is Hassocks station, about 4.3 miles east of the centre. Other landmarks nearby include The Dene Hospital (4.7 miles north-east) and The Budding Foundation Museum of Gardening (4 miles east). The countryside around Woodmancote includes Woods Mill and Truleigh Hill.

Map of Woodmancote © OpenStreetMap contributors

Looking after it afterwards

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Plan mastic work ahead of painting
  • Avoid heavy scraping on the mastic joint
  • Find out about consent before window work on a listed home
  • Ask a joiner to look at soft timber first

When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.

Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.

FAQs for Woodmancote

Do you cover Woodmancote for sand mastic?

Yes. Our work covers London and the South East, and Woodmancote is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.

Will you come out to Woodmancote?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you have insurance?

Yes. Full insurance covers our work.

What is sand mastic?

A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.

How long does the job take?

A typical job takes a few hours per window, depending on the condition of the joints, including preparation and clearing up. We’ll confirm how long when we quote.

What does sand mastic cost?

Size, access and the old material all affect the cost. Call for a quick quote.

Can old silicone round a sash window be swapped for sand mastic?

Normally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.

Can you match the sealant colour?

In most cases you can choose. We will tell you which colours the right product comes in and agree one before we start.

Different surfaces, different methods

Stone surrounds

We take care not to mark the stone while raking out the old mastic.

Timber door frames

Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.

What happens if it’s left?

Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Older cottages and farmhouses around Woodmancote can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • Any old sealant cut out fully, not covered over
  • A 12-month guarantee on all work
  • Quality sealants from Arbo and Everbuild
  • Rated 4.9 stars on Google

See our cost guide and our reviews.

What happens on the day

On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a single window, longer for several, including the tidy-up. In a small place like Woodmancote, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. We fill deep gaps so the new mastic is not too thick.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Preparing for the visit

  • Clear items away from the joints we are working on
  • Let us know about earlier repairs to the joints
  • Where the joints are inside, avoid wetting them before we arrive

Get a quote

Want a quote for sand mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before we start.

Get a price

Advice

Landlords, agents and businesses in Woodmancote

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.

We also work for property managers and facilities teams. We can quote a run of properties together.

What affects the quote in Woodmancote

Every job gets its own quote. This is what makes a difference:

  • Mould in or behind the old joints
  • Whether old sealant or filler has to be cut out
  • How easy the joints are to reach
  • How much there is to do

Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

Helping us quote

When you contact us, these details help:

  • How many joints, rooms or windows are involved
  • Access, such as stairs, a lift or height
  • If it’s domestic, commercial or a hotel
  • Whether it has been sealed before

Every job is quoted individually. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.

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