West Sussex · England
Balcombe Sand Mastic
Window and door surrounds in Balcombe need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
- Draughts and rain around sash boxes
Landlord and commercial work in Balcombe
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Sand mastic in Balcombe
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and mastic that needs renewing before redecorating, on brick reveals, timber door frames and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Balcombe is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Our work is backed for twelve months, in Balcombe and everywhere else we cover.
- Location
- Balcombe (RH17)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. For a village or hamlet like Balcombe, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
- Tell us about any water getting in
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or email us.
Advice
Different surfaces, different methods
Period and listed homes
A traditional finish suits a period property.
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 sealant work can’t fix
A few problems are outside what sealant work can do:
- Whether work needs listed building consent
- Sash cords, weights and draught-proofing of the sashes
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Timber door frames
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
Frames and glazing around Balcombe
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Tyes Place (about 2.1 miles south-west) nearby, there’s older building stock in the area around Balcombe as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Balcombe CofE Controlled Primary School, the mastic around its windows and doors needs looking after like any other building’s. Homes close to The Parish Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Balcombe is about 4 miles north of Haywards Heath, in West Sussex. Every kind of property in Balcombe is covered for sand mastic. The work is guaranteed for a year. Our West Sussex coverage runs to 371 places, Balcombe among them.
All of RH17 is covered for sand mastic, from the main roads to the quietest streets. Local streets include London Road, Stockcroft Road and Deanland Road, all of which we cover. Balcombe sits on or near the B2036. If you’re just outside Balcombe, we cover Balcombe Lane (1 mile north), Brook Street (2 miles south), Staplefield (2 miles south-west), Worth Abbey (3 miles north) and Whitemans Green (3 miles south). Within a short drive, we also cover Crawley (5 miles north-west), Horsham (8 miles west), Haywards Heath (4 miles south), Burgess Hill (7 miles south), East Grinstead (7 miles north-east) and Broadfield (4 miles north-west).
Near you in Balcombe
Balcombe has its own railway station: Balcombe station. Well-known places in the area include Princess Royal Hospital (4.9 miles south) and Cuckfield Museum (3.5 miles south). The countryside around Balcombe includes Blunts Wood and Paiges Meadow and Tilgate Lake.
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Balcombe: your questions answered
Do you work for landlords with property near Balcombe station?
Yes. We work for landlords and agents as well as homeowners, 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.
Will you come out to Balcombe?
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 offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How much does sand mastic cost in Balcombe?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
Towns and villages near Balcombe
Also in Balcombe
Why it’s worth doing now in Balcombe
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. In a small place like Balcombe, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts.
Why us?
- Homes, businesses and hotels
- One-year guarantee on every job
- An ARBOMaster approved applicator
- More than 20 years in sealant work
Read what affects the cost or customer reviews.
Common problems we fix in Balcombe
Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.
Keep an eye out for these signs:
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
Letting a property close to Balcombe station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- How hidden problems are handled
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- Whether you can choose the colour