East Sussex · England

Rotherfield Sand Mastic

Our applicators work in Rotherfield on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Mastic dropping out of the joint
  • Draughty sash windows at the surround
  • Gaps round a timber door in stone or brick

Sand mastic near Rotherfield

Sand mastic in Rotherfield, done properly

If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on tenement windows, brick reveals and stone surrounds, and people most often call us about draughty sash windows at the surround and old sand mastic that has cracked, crumbled or fallen out.

Around Rotherfield, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.

We stand behind the work with a 12-month guarantee, so you’re covered after we have gone.

Place
Rotherfield (TN6)
Wider area
East Sussex
Guarantee
A year, on every job
Quote
A clear quote up front
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

Why deal with it now?

New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Where a wall is exposed, as many are in small places like Rotherfield, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.

Why us?

  • Anti-fungal sanitary silicone in wet areas
  • An ARBOMaster approved applicator
  • Tidy, careful work
  • Homes, businesses and hotels

Take a look at what affects the cost and our reviews.

Common questions in Rotherfield

Do you work for landlords with property near Crowborough station?

Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Do you cover smaller places like Rotherfield?

Yes. Rotherfield 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.

Where do you work from?

Our base is Crawley. Our area covers South East England, London and Scotland.

Do I need permission for sand mastic on a listed building?

Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish but the decision is theirs.

How long does sand mastic take?

Typically it takes anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we’ll tell you how long to expect.

What guarantee comes with the work?

Our 12-month guarantee applies to all our work.

How long does sand mastic take to harden?

A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.

Do you offer different sealant colours?

We help you choose a colour that suits. The product needed can limit the range.

When something else is needed

Before you book, it’s worth knowing the limits too:

  • Sash cords, weights and draught-proofing of the sashes
  • Planning or listed building consent (your local planning authority decides)
  • Damaged stone surrounds

If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.

Joints and surfaces we work on

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

How it works

At the end, we look at the finished work together. The visit itself normally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere as small as Rotherfield, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by checking each surround and agreeing the joints to renew.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. We dress the surface so it sits neatly against the masonry.

Getting ready for the visit

  • Let us know about stairs, lifts or work at height
  • Mention if the joints have been sealed before
  • Clear items away from the joints we’re working on

Get a quote

We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details and send photos if you have them.

Get a price

Advice

Different surfaces, different methods

Sash and case windows

Sash windows are where we do most sand mastic work. We renew the mastic round each box.

Tenement and terrace windows

Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.

What sand mastic looks like in Rotherfield

London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Letting a property close to Crowborough station? Then any sash windows need sound mastic to keep draughts and rain out. Schools such as Rotherfield Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near The Parish Church of St Denys, the joint between an old wall and a newer frame is generally the first place rain gets in.

Rotherfield is about 2 miles east of Crowborough, in East Sussex. Across the TN6 area, we can carry out sand mastic at your property. Our East Sussex coverage runs to 289 places, Rotherfield among them. We also work in Crawley, about 18 miles from Rotherfield.

We cover every part of TN6 for sand mastic and the streets around it. Local streets include Church Road, Station Road and Church Walk. Close by, we work in High Cross (1 mile south-east), Town Row (1 mile north-east), Argos Hill (1 mile south-east), Mark Cross (2 miles north-east) and Woolbridge (2 miles south-east). We also work in nearby towns such as Lewes (15 miles south-west), Hailsham (13 miles south), Uckfield (7 miles south-west), South Malling (15 miles south-west), Heathfield (6 miles south) and Southover (15 miles south-west).

Landmarks near Rotherfield

We work in homes and buildings around Beacon Academy, The King's Arms Public House and St Joseph Seminary and the streets around them. For rail, the closest station is Crowborough station, about 1.3 miles west of the centre. A little further out are Crowborough War Memorial Hospital (2.7 miles west). For a walk, there’s Crowborough Country Park.

Map of Rotherfield © OpenStreetMap contributors

Aftercare tips

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

  • Keep modern sealant off the mastic
  • Take care around the mastic when scraping paint
  • Keep sills and gutters clear so water drains away
  • Check with your local planning authority if your home is listed

Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.

Quotes for sand mastic in Rotherfield

There’s no set price list. The quote depends on:

  • Any mould that needs treating
  • Whether old sealant or filler has to be cut out
  • The size of the job
  • Which sealant suits the joint

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

What to tell us for a quote

To make quoting easier, let us know:

  • A few pictures by email, if you can
  • How many joints, rooms or windows are involved
  • Where the property is
  • How we’d reach the joints

If you’re in Rotherfield and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.

Can I do it myself?

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

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