Kent · England
Window & door mastic in Horsmonden, Kent
Window and door frames in Horsmonden need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Draughty joints inside around the window
- Sealant in the wrong colour for the frame
- Rain getting in at the frame or under the sill
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Window mastic in Horsmonden, done properly
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. If the draught is through the window seals instead, we will tell you. We are often asked to deal with black, perished sealant on frames and cracked or shrunken mastic around the frame, on window sills, uPVC windows and aluminium frames.
Mastic can only go onto a dry, clean joint, so window work in Horsmonden is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes as standard.
- Place
- Horsmonden (TN12)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Window mastic in Horsmonden: local notes
Historic houses like Scotney Castle (about 3.4 miles south) are a reminder that the area around Horsmonden has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Managing a site like Horsmonden Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Paddock Wood station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Horsmonden is about 7 miles east of Royal Tunbridge Wells, in Kent. Wherever you are in the TN12 postcode area, our applicators can take on window mastic. Horsmonden is one of 922 towns and villages in Kent where we work for window mastic. Our Crawley page covers work nearby (27 miles or so).
Every address in TN12 is covered for window mastic, from the main roads to the quietest streets. Whether your property is on Morley Drive, Woodgate Mews and Back Lane or a nearby road, we can help. If you are just outside Horsmonden, we cover Hazel Street (1 mile south-west), Capel Cross (1 mile south-east), Broad Ford (1 mile south-east), Palmer's Green (1 mile north-west) and Castle Hill (1 mile north-west). Further out, we also cover Maidstone (10 miles north-east), Sevenoaks (14 miles north-west), Royal Tunbridge Wells (7 miles west), Tonbridge (8 miles north-west), Kings Hill (9 miles north) and Foley Park (11 miles north-east).
Local landmarks in Horsmonden
Locally, jobs take us to homes and businesses close to The Highwayman pub and the streets around them. The closest station to Horsmonden is Paddock Wood station, about 3.4 miles north-west. Well-known places in the area include Tunbridge Wells Hospital (5.3 miles west) and Finchcocks Musical Museum (2.5 miles south).
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. In a small place like Horsmonden, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why Horsmonden clients choose us
- Sealant colour chosen to suit
- You choose the colour before work begins
- Rated 4.9 stars on Google
- We are fully insured
Read our cost guide or our reviews.
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a few frames, or a day or more for a whole house. Somewhere like Horsmonden needs a little journey planning: 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 confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
For window mastic in Horsmonden, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
Your questions about window mastic in Horsmonden
Is Horsmonden within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Horsmonden in your area for window mastic?
Yes, Horsmonden is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
Can resealing stop a draught around my window?
In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Keep jet washers away from the mastic
- Ventilate rooms so frames don’t stay wet inside
- Use gentle cleaners on frames and sealant
- Keep paint and stain on wooden frames in good order
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Nearby places to Horsmonden
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What affects the cost of window mastic
Jobs vary more than people expect. What affects the quote:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Mould in or behind the old joints
- Any working-time requirements on site
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- If someone has resealed it before
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
What sealant work cannot fix
It helps to know what we can’t do too:
- A failed sealed unit that has misted up
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Where we work in Horsmonden
- Patio & French doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
When to call us in Horsmonden
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
Most people get in touch after spotting something like this:
- Mastic that has split away from the wall
- Cracked internal joints between frame and plaster
- Leaking joints at the ends of sills
- Whistling draughts around closed windows
Historic houses such as Scotney Castle, about 3.4 miles south, show how far back building around Horsmonden goes.
What your quote should include
- Whether they seal over old material or remove it
- How long to leave it before use
- How much experience the applicator has
- How long the guarantee is