Kent · England
Sand Mastic in High Brooms
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in High Brooms and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Patchy fillers round a sash window
- Mastic that needs renewing before redecorating
- Draughty sash windows at the surround
Sand mastic for homes and businesses in High Brooms
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 period & listed homes, stone surrounds and tenement windows, and people most often call us about modern sealant on a period surround and patchy fillers round a sash window.
In smaller places like High Brooms, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- High Brooms (TN2, TN4, TN1)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
When to call us in High Brooms
Timber frames move with the seasons. The movement cracks the mastic little by little.
It’s worth asking for a quote if you see:
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
- Crumbling sand mastic round a window
- Failed mastic on an exposed elevation
Homes close to St Matthew's Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
What your quote should include
- How hidden problems are handled
- Whether they’re fully insured
- Which colour the sealant will be
- How the joint is cleaned and prepared
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Housing providers, facilities teams and property managers book us too in High Brooms and across Kent. Several sites can go on one quote, and we’re fully insured for the work.
Why act early in High Brooms
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a smaller place like High Brooms, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
Why us?
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- Any old sealant cut out fully, not covered over
- We are fully insured
See our cost guide and our reviews.
Towns and villages near High Brooms
More services for High Brooms
How we quote for sand mastic
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- When we can work, for business premises
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- Where the job is, and your postcode
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details, and photos are welcome.
What we do, step by step
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a single window, longer for several. Parking around High Brooms is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Getting a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
Read more
Sand mastic in High Brooms: local notes
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. Historic houses like Groombridge Place (about 4.4 miles south-west) are a reminder that the area around High Brooms has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you look after a building such as St John's Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near High Brooms station, older sash windows in a rental need their mastic kept sound to keep the weather out.
High Brooms is about 1 mile north-east of Royal Tunbridge Wells, in Kent. If you need sand mastic in High Brooms, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Kent from our Crawley base. Our Kent coverage runs to 922 places, and High Brooms is one of them. For nearby work, see our Crawley page, about 20 miles away.
Work in TN2, TN4 and TN1 works the same way as everywhere else we cover. Streets in the area include Oak Road, Brook Road and Caley Road. Nearby, we also carry out sand mastic in Southborough (1 mile north-west), Royal Tunbridge Wells (1 mile south-west), Hawkenbury (2 miles south), Stockland Green (2 miles west) and Bidborough (2 miles north-west). Larger places within reach include Maidstone (14 miles north-east), Sevenoaks (10 miles north-west), Tonbridge (3 miles north), Kings Hill (10 miles north-east), Foley Park (14 miles north-east) and Paddock Wood (5 miles east).
Landmarks near High Brooms
Locally, jobs take us to homes and businesses close to St Gregory's Catholic School, Hilbert Woods and Longbow Court pub and the streets around them. High Brooms has its own railway station: High Brooms station. A little further out are Kent and Sussex Hospital (1.2 miles south-west) and Tunbridge Wells Museum and Art Gallery (1.2 miles south-west). Not far away are Tudeley Woods RSPB reserve and Barden Lake.
Your questions about sand mastic in High Brooms
Do you cover smaller places like High Brooms?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do sand mastic in High Brooms?
Yes. We work across London and the South East, and High Brooms is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
How long does sand mastic take?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we’ll say how long yours will take.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can tenants book the work?
Yes. Ask your landlord first, and we can send them the quote if that helps.
What do you put in the joint?
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 are using.
How the job changes by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.