Kent · England
Sand mastic for sash & case windows in Mundy Bois, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Mundy Bois, backed by a one-year guarantee. Ask us for a quote.
- Modern sealant on a period surround
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant won’t do:
- Masonry that needs repairing
- Sashes that need overhauling
- Cracked or broken glass
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Timber door frames
- Stone surrounds
Sand mastic in Mundy Bois
Across Mundy Bois, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We are often asked to deal with patchy fillers round a sash window and silicone on a period window that looks wrong, across stone surrounds, sash and case windows and period & listed homes.
Outdoor sealant needs dry, clean surfaces, so work on frames around Mundy Bois is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Mundy Bois (TN27)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
When we get to you, 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 per window, depending on the condition of the joints. For a village or hamlet like Mundy Bois, the journey is planned in advance: 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.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Mention if the joints have been sealed before
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
How to get a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Related advice
Sand mastic in Mundy Bois: local notes
With historic houses such as Godinton House (about 5 miles east) nearby, there’s older building stock in the area around Mundy Bois 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Pluckley station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near Church of St James, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Mundy Bois is about 7 miles north-west of Ashford, in Kent. For sand mastic in and around Mundy Bois, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Kent from our Crawley base. We cover 922 towns and villages across Kent. You can also see our page for Crawley, roughly 40 miles from Mundy Bois.
Work in TN27 works the same way as everywhere else we cover. We cover properties on Munday Bois Road, Kingsland Lane and Greenhill Lane and the roads around them. If you are just outside Mundy Bois, we cover Newland Green (1 mile west), Egerton Forstal (1 mile west), Egerton (1 mile north), Potter's Forstal (1 mile north-west) and Pluckley Thorne (1 mile south-east). Further out, we also cover Maidstone (10 miles north-west), Ashford (7 miles south-east), Sittingbourne (11 miles north), Faversham (12 miles north-east), Kings Hill (15 miles north-west) and Davington (12 miles north-east).
What’s near Mundy Bois
Mundy Bois’s nearest station is Pluckley station, roughly 2 miles south-east. Other landmarks nearby include Coldbridge Castle (1.7 miles north-west).
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What affects the cost of sand mastic
For a quick quote, just ask. What matters most is:
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The number and length of the joints
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Pictures of the joints, sent by email
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Where the property is
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Landlord and commercial work in Mundy Bois
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in Mundy Bois and across Kent. We can quote a run of properties together, and we are fully insured.
Places near Mundy Bois
More services for Mundy Bois
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Do you need sand mastic in Mundy Bois?
Some old mastic was never deep enough. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
The problems people normally mention when they call are:
- Open joints round the window box
- Tired mastic found when preparing windows for paint
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
For site and facilities teams at buildings such as Egerton Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- The length of the guarantee
- Whether you can choose the colour
- What insurance they hold
- How the surfaces are prepared before sealing
Mundy Bois questions
Do you cover Mundy Bois for sand mastic?
Yes, Mundy Bois is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Will you come out to Mundy Bois?
Yes. Mundy Bois is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Can you replace silicone on a period window with sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.