Kent · England

Sand Mastic in Oversland

Sand mastic in Oversland from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Open joints round the window box
  • A silicone bead on a sash window that spoils the look
  • Crumbling sand mastic round a window

Trusted sand mastic in Oversland

Aftercare tips

To keep the joints looking good and working properly:

  • Renew mastic before redecorating the windows
  • Don’t paint over the new mastic
  • Keep sills and gutters clear so water drains away
  • Take care around the mastic when scraping paint

Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.

Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.

How we handle sand mastic in Oversland

Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have old sand mastic that has cracked, crumbled or fallen out and weathered mastic on the most exposed windows, we can help, whatever the surface.

In a village or hamlet like Oversland, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

A 12-month guarantee comes as standard, so you’re covered after we have gone.

Place
Oversland (ME13)
Region
Kent
Cover
12 months on all our work
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Landlord and commercial work in Oversland

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

For anyone letting property in or around Oversland, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.

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.

Stone surrounds

Stone openings are rarely perfectly straight, so the joint varies in width. Sand mastic is shaped by hand to suit.

FAQs for Oversland

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

Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.

Is Oversland in your area for sand mastic?

Yes, Oversland is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.

Do you work for hotels and businesses?

Yes. Larger jobs can be planned room by room or area by area.

Which products do you use?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we’re using.

Which is right for my windows, sand mastic or modern sealant?

For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.

What’s sand mastic made of?

It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.

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

Often, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.

What affects the cost of sand mastic

Some jobs are bigger than they look, and some smaller. The main factors:

  • The amount of work
  • The old material and how stubborn it is
  • Any working-time requirements on site
  • Which sealant suits the joint

Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.

Helping us quote

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

  • The address or postcode of the job
  • The problem you’ve noticed
  • If it’s domestic, commercial or a hotel
  • A few pictures by email, if you can

If you’re in Oversland and need sand mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.

What happens on the day

Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Oversland, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. We fill deep gaps so the new mastic isn’t too thick.
  4. New sand mastic is applied and shaped by hand.
  5. We finish the mastic to a tidy line.

Before we arrive

  • Mention any leaks or damp you’ve noticed
  • Move anything stored near the joints
  • Try not to wet indoor joints just before the visit

How to get a quote

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

Get a price

Related advice

Sand mastic in Oversland: local notes

Historic houses like Belmont House and Gardens (about 4.8 miles west) are a reminder that the area around Oversland 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. 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 Selling station? Then any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Oversland is about 4 miles south-east of Faversham, in Kent. Whether you are in the middle of Oversland or further out, sand mastic is available for homes and businesses alike. Our Kent coverage runs to 922 places, and Oversland is one of them. We also work in Chelmsford, about 37 miles from Oversland.

Every address in ME13 is covered for sand mastic. That includes homes and businesses on Dunkirk Road and South Street. We also cover Winterbourne (1 mile north-east), South Street (1 mile west), Hickmans Green (1 mile north), Neames Forstal (1 mile south-west) and Crouch (1 mile north-west). Further out, we also cover Ashford (10 miles south), Canterbury (5 miles east), Sittingbourne (10 miles north-west), Whitstable (6 miles north-east), Faversham (4 miles north-west) and Herne Bay (10 miles north-east).

Local landmarks in Oversland

Around Oversland, our work takes us to homes and buildings near Mount Ephraim Gardens and The Sondes Arms. The closest station to Oversland is Selling station, about 0.6 miles west. A little further out are Eastbridge Hospital of St Thomas the Martyr (5.3 miles east) and Tower keep castle at Chilham (2.6 miles south). Open spaces near Oversland include Blean Woods RSPB Reserve.

Map of Oversland © OpenStreetMap contributors

Signs you need sand mastic in Oversland

Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.

Signs it’s time to call us include:

  • Gaps where the frame meets the masonry
  • Mastic worn away on windows facing the weather
  • Silicone on a period window that looks wrong
  • Tired mastic found when preparing windows for paint

Schools such as Boughton-under-Blean and Dunkirk Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

Questions to ask before you book

  • Whether you can choose the colour
  • How long to leave it before use
  • What the quote includes, VAT included or not
  • How the surfaces are prepared before sealing

Our hiring checklist

DIY sealant or a professional job?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

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