Kent · England
Sand mastic for sash & case windows in Shoreham, Kent
Problem with your window and door surrounds in Shoreham? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Window mastic to renew ahead of painting
- Open joints round the window box
- Cement or filler used on old window joints that has cracked
Sand mastic in Shoreham, done properly
Across Shoreham, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. Common call-outs are for draughty sash windows at the surround and cracked mastic round a front door frame, on brick reveals, sash and case windows and stone surrounds.
Around Shoreham, 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.
You get a 12-month guarantee, the same in Shoreham as everywhere else we work.
- Place
- Shoreham (TN14)
- Region
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Shoreham
Historic houses like Lullingstone Castle (about 1.8 miles north-east) are a reminder that the area around Shoreham has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Shoreham Village School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Shoreham (Kent) station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Shoreham is about 4 miles north of Sevenoaks, in Kent. Wherever you are in the TN14 postcode area, we can carry out sand mastic at your property. Our Kent coverage runs to 922 places, Shoreham among them. London is on our list too, about 16 miles from Shoreham.
Every address in TN14 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on High Street, Boakes Meadow and Church Street or a nearby road, we can help. If you are just outside Shoreham, we cover Badgers Mount (1 mile west), Sepham Heath (1 mile south-west), Twitton (1 mile south), Otford (2 miles south) and Lullingstone (2 miles north). Within a short drive, we also cover Dartford (8 miles north), Sevenoaks (4 miles south), Royal Tunbridge Wells (14 miles south), Gravesend (11 miles north-east), Tonbridge (10 miles south-east) and Northfleet (10 miles north-east).
Near you in Shoreham
Locally, jobs take us to homes and businesses close to Raspberry Hall Park and The Old George Inn and the streets around them. There’s a railway station in Shoreham itself: Shoreham (Kent) station. A little further out are Sevenoaks Hospital (3.2 miles south) and Otford Heritage Centre (1.9 miles south). Not far away are Dryhill Nature Reserve.
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Why deal with it now?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Shoreham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or send us an email and we will talk you through it.
What you get with us
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
- Every job guaranteed for a year
How we quote for sand mastic
You will get a clear quote before we start. It’s based on:
- The old material and how stubborn it is
- Mould in or behind the old joints
- When we can work, for business premises
- Access and height
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Photos by email, if that’s easy
- The address or postcode of the job
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
FAQs for Shoreham
Can you do sand mastic in Shoreham?
Yes. Our work covers London and the South East, and Shoreham is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
I let a flat near Shoreham (Kent) station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
How do I get a quote for sand mastic in Shoreham?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
Is the work guaranteed?
Our one-year guarantee covers every job, sand mastic included.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Different surfaces, different methods
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Looking after it afterwards
Looking after new joints is easy:
- Check the mastic when you check the paintwork
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
- Plan mastic work ahead of painting
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Signs you need sand mastic in Shoreham
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
The problems people normally mention when they call include:
- Modern sealant on a period surround
- Mastic dropping out of the joint
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
For an older house near a landmark such as Church of St Peter and St Paul, the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before booking
- How hidden problems are handled
- What guarantee comes with the work
- How the colour is chosen
- Whether the sealant suits the joint
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 single window, longer for several, including the tidy-up. Somewhere like Shoreham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- Clear items away from the joints we are working on
Getting a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.