Kent · England
Sand mastic for sash & case windows in Broomfield, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Broomfield, with a one-year guarantee on every job. Ask us for a quote.
- Silicone on a period window that looks wrong
- Patchy fillers round a sash window
- Wind and rain getting in round a sash window
Landlord and commercial work in Broomfield
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Sand mastic for homes and businesses in Broomfield
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We are often asked to deal with mastic that needs renewing before redecorating and failed mastic on an exposed elevation, across tenement windows, timber door frames and brick reveals.
Mastic can only go onto a dry, clean joint, so window work in Broomfield is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Broomfield (ME17)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
It helps to know what we cannot do:
- Masonry that needs repairing
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Tenement windows
- Timber door frames
- Period & listed homes
- Brick reveals
- Sash and case windows
- Stone surrounds
How the visit works
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before work begins. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Broomfield, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- 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
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
Getting a quote
For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
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More services for Broomfield
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. In a small place like Broomfield, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
What you get with us
- Quality sealants from Arbo and Everbuild
- Neat joints and a tidy finish
- Domestic, commercial and hotel work
- ARBOMaster approved applicator
See what affects the cost and what customers say.
What sand mastic looks like in Broomfield
With historic houses such as Leeds Castle (about 0.4 miles north-west) nearby, there’s older building stock in the area around Broomfield as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Margaret, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Leeds and Broomfield Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Hollingbourne station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Broomfield is about 5 miles east of Maidstone, in Kent. We carry out sand mastic for householders, landlords and businesses in Broomfield and nearby. Broomfield is one of 922 towns and villages in Kent where we work for sand mastic. Chelmsford is on our list too, around 35 miles away.
Every address in ME17 is within our area for sand mastic. We also cover the places around Broomfield: Chegworth (1 mile east), Ashbank (1 mile north-west), Kingswood (1 mile south), Eyhorne Street (1 mile north) and Leeds (1 mile west). Further out, we also cover Maidstone (5 miles west), Ashford (12 miles south-east), Sittingbourne (8 miles north-east), Faversham (12 miles north-east), Minster (14 miles north-east) and Kings Hill (10 miles west).
Around Broomfield
Typical jobs here are in homes near The Park Gate Inn and the streets around them. The nearest railway station is Hollingbourne station, roughly 1.6 miles north. A little further out are Leeds Castle (within half a mile north-west) and KIMS hospital (4.5 miles north-west). Open spaces near Broomfield include Detling Hill.
Quotes for sand mastic in Broomfield
Every job gets its own quote. This is what makes a difference:
- Whether the work is at height
- Any working-time requirements on site
- Any mould that needs treating
- The number of rooms or windows
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- What’s wrong with the joints now
- Roughly how big the job is
- Whether it’s a home or a business
Every job is quoted individually. Just ring 0345 464 0079 or drop us an email with the details.
Aftercare tips
After the cure time, these simple habits help:
- Plan mastic work ahead of painting
- Ask us before painting near the mastic
- Look over the window mastic once a year
- Ask a joiner to look at soft timber first
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
Your questions about sand mastic in Broomfield
Will you come out to Broomfield?
Yes, Broomfield is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Broomfield in your area for sand mastic?
Yes. Our work covers London and the South East, and Broomfield is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before we start.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels.