Kent · England
Window & door mastic in Mundy Bois, Kent
Specialist window mastic for Mundy Bois: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
- Cracked internal joints between frame and plaster
About our window mastic in Mundy Bois
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we’ll say so. Typical jobs include cold air getting in at the frame edge and mastic that’s falling out in pieces, on window sills, aluminium frames and patio & French doors.
Homes in small places like Mundy Bois often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job is covered by a 12-month guarantee, wherever you are in Kent.
- Where
- Mundy Bois (TN27)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Different surfaces, different methods
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain cannot run into the wall.
Common questions in Mundy Bois
Can you help a landlord with a rental near Pluckley station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Is Mundy Bois within the area you cover?
Yes. Mundy Bois is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Mundy Bois, along with the rest of our area.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
What window mastic looks like in Mundy Bois
Historic houses like Godinton House (about 5 miles east) are a reminder that the area around Mundy Bois 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 is 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 sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Schools such as Egerton Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Mundy Bois is about 7 miles north-west of Ashford, in Kent. Homes, rented property, offices and hotels in Mundy Bois can book us for window mastic. The work is guaranteed for a year. Our Kent coverage runs to 922 places, and Mundy Bois is one of them. We also work in Crawley, about 40 miles from Mundy Bois.
Our applicators cover all of the TN27 postcode area for window mastic. Local streets include Munday Bois Road, Kingsland Lane and Greenhill Lane. Nearby, we also carry out window mastic in 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). Larger places within reach include 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).
Landmarks near Mundy Bois
The nearest railway station is Pluckley station, roughly 2 miles south-east of the centre. Nearby you’ll also find Coldbridge Castle (1.7 miles north-west).
Also near Mundy Bois
What else we do in Mundy Bois
What we’re called out for in Mundy Bois
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.
Signs it’s time to call us include:
- Mastic that’s falling out in pieces
- Cracked or shrunken mastic around the frame
- Water coming in at the bottom corners of a door
- Untidy mastic left by window fitters
Homes close to Church of St James include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- What insurance they hold
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
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.
What we cannot put right
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Condensation trapped between the panes
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
What we seal
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Composite doors
- Patio & French doors
- Window sills
What affects the cost of window mastic
Your quote is based on your job. We take into account:
- How easy the joints are to reach
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Helping us quote
Before you ask for a quote, have a think about:
- Where the property is
- A few photos by email, if you can
- Any previous sealing or DIY work
- The problem you’ve noticed
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or send us an email.
How the visit works
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work usually takes a few hours for a few frames, or a day or more for a whole house. In a small place like Mundy Bois, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Getting a quote
If you are in Mundy Bois and need window mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Related advice
Landlord and commercial work in Mundy Bois
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Housing providers, facilities teams and property managers book us too in Mundy Bois and across Kent. Several sites can go on one quote, and we are fully insured for the work.
