East Sussex · England

Window & door mastic in Beckley, East Sussex

Window and door frames in Beckley need attention? We cut out the old, prepare the joints and apply the right sealant.

  • Water coming in at the bottom corners of a door
  • Cracked sealant at the sill ends
  • Untidy mastic left by window fitters

Trusted window mastic in Beckley

How we handle window mastic in Beckley

Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on uPVC windows, patio & French doors and composite doors, and the jobs we see most are gaps where the sill meets the wall and black, perished sealant on frames.

Homes in small places like Beckley often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

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

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Beckley (TN31)
Wider area
East Sussex
Cover
A year, on every job
Quote
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026

Should I try it myself first?

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.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

When something else is needed

In fairness, some problems need a different trade:

  • Condensation trapped between the panes
  • Worn gaskets, brush seals or a door that has dropped
  • Damp coming through the wall itself rather than the frame joint

If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Where we work in Beckley

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

What the job involves on each surface

Window sills

Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.

Timber windows & doors

On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.

Aftercare tips

Good habits help new joints last longer. A few tips:

  • Wipe condensation off the frames
  • Check the mastic once a year
  • Wash the frames with mild soapy water
  • Keep paint and stain on wooden frames in good order

Most silicone sealants won’t take paint, so mention any painting plans before work begins. We can use a paintable sealant where that matters.

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.

Beckley homes and the weather

With historic houses such as Great Dixter (about 2.3 miles west) nearby, there’s older building stock in the area around Beckley as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Letting a property close to Winchelsea station? Then renewing tired window mastic between tenants heads off draught and damp complaints. If you live in an older home near The Parish Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Beckley is about 9 miles north-east of Hastings, in East Sussex. Homes, rented property, offices and hotels in Beckley is covered for window mastic. The work is guaranteed for a year. Across East Sussex, we cover 289 places, Beckley among them. There’s also a page for Brighton, about 35 miles away.

Postcode districts we cover here for window mastic: TN31. Local streets include King's Bank Lane, Royal Oak Close and Whitebread Lane. Beckley is on the B2088, which makes it straightforward to reach with everything needed for window mastic. We also cover Flackley Ash (2 miles east), Northiam (2 miles north-west), Beckley Furnace (2 miles south-west), Peasmarsh (2 miles south-east) and Broadland Row (3 miles south). Within a short drive, we also cover Hastings (9 miles south-west), Bexhill-on-Sea (12 miles south-west), St Leonards (10 miles south-west), Hastings Old Town (9 miles south), Belmont (9 miles south) and Hollington (9 miles south-west).

Landmarks near Beckley

Locally, jobs take us to homes and businesses close to The Rose And Crown Inn. The nearest railway station is Winchelsea station, about 4.4 miles south-east. A little further out are Ypres Tower (4.7 miles south-east). For a walk, there’s Flatropers Wood.

Map of Beckley © OpenStreetMap contributors

What happens on the day

There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. Somewhere as small as Beckley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First, we go round the frames with you and agree the list.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Where the gap is deep, backing rod goes in first.
  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.

How to prepare

  • Tell us about any previous sealing or DIY attempts
  • Move anything stored near the joints
  • Mention any tricky access

Getting a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.

Get a quick quote

Advice

When to call us in Beckley

Sills take more water than any other part of a window, 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.

Most people get in touch when they notice one of these:

  • Cracked sealant at the sill ends
  • Mastic that is falling out in pieces
  • A bead that does not match the frame
  • Gaps left after new windows were fitted

For site and facilities teams at buildings such as Beckley Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

Questions to ask before you book

  • What the cure time is
  • What the quote includes, VAT included or not
  • Whether you can choose the colour
  • What happens if they find a problem under the old sealant

Choosing a sealant specialist

Landlord and commercial work in Beckley

For anyone letting property in or around Beckley, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Common questions in Beckley

Do you work for landlords with property near Winchelsea station?

Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.

Will you come out to Beckley?

Yes, Beckley is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can I paint over the new sealant?

Most silicone cannot be painted. Let us know beforehand, and we’ll use a paintable product where it suits.

How many windows can you do in a day?

Allow anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.

Will new mastic stop draughts?

If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.

What do you put in the joint?

Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.

Is the work guaranteed?

Yes. Our one-year guarantee covers every job, inside or out.

Can you seal the gap between the frame and the plaster indoors?

Yes. Draughts often come through the inside gap too, so it can be worth sealing both.

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