Kent · England
Window & door mastic in Wormshill, Kent
Window mastic for Wormshill, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant in the wrong colour for the frame
- Hard, cracked sealant around windows
- Untidy mastic left by window fitters
What affects the cost of window mastic
You’ll get a clear quote before any work starts. It’s based on:
- Whether there’s mould to deal with
- The size of the job
- Any working-time requirements on site
- Whether the work is at height
The cost depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Helping us quote
When you call or email, it’s useful to know:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
About our window mastic in Wormshill
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on composite doors, window sills and aluminium frames, and common reasons people get in touch are sealant in the wrong colour for the frame and hard, cracked sealant around windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Wormshill is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, you get the same one-year guarantee in Wormshill and across Kent.
- Where
- Wormshill (ME9)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Wormshill
Also in Wormshill
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from an hour or two to a full day, depending on how many frames there are, and the area is left clean. Somewhere like Wormshill needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
Get a quote
Every job is quoted individually. Simply ring 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Advice
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Don’t use solvent cleaners on the joint
- Keep drainage slots and sill grooves clear
- Look round the frames every year or so
- Do not aim a pressure washer at the joints
Keep the new mastic undisturbed while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Questions from Wormshill
Will you come out to Wormshill?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Wormshill for window mastic?
Yes. We work across London and the South East, and Wormshill is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months, inside or out.
Is there any odour?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Is the new sealant paintable?
Not usually, if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
Surface by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
For landlords and businesses
For anyone letting property in or around Wormshill, several properties can be quoted together. Just tell us the addresses and what each one needs.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What we can’t put right
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Penetrating damp from a failed cavity tray or render
If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Surfaces we seal
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Composite doors
- Window sills
Window mastic in Wormshill: local notes
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. Historic houses like Leeds Castle (about 3.7 miles south-west) are a reminder that the area around Wormshill 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.
Rented homes near Harrietsham station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Wormshill is about 4 miles south-west of Sittingbourne, in Kent. Whether you’re in the middle of Wormshill or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Wormshill is one of 922 places in Kent we cover. There’s also a page for Chelmsford, about 33 miles away.
Work in ME9 works the same way as everywhere else we cover. Whether your property is on The Street, Dray's Field and Bottom Pond Road or a nearby road, we can help. We also cover Bicknor (1 mile north-west), Hucking (2 miles west), Hollingbourne (3 miles south-west), Marley (3 miles south) and Harrietsham (3 miles south). Larger places within reach include Maidstone (7 miles west), Ashford (12 miles south-east), Sittingbourne (4 miles north-east), Whitstable (15 miles east), Faversham (9 miles east) and Minster (10 miles north-east).
Near you in Wormshill
We work in homes and buildings around The Blacksmith's Arms Public House. For rail, the closest station is Harrietsham station, roughly 2.9 miles south of the centre. Nearby you’ll also find KIMS hospital (6 miles west) and Leeds Castle (3.7 miles south-west). Open spaces near Wormshill include Detling Hill.
What we are called out for in Wormshill
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
Look out for these signs:
- Black, perished sealant on frames
- Rain getting in at the frame or under the sill
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
Homes close to St Giles include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Before booking anyone
- How hidden problems are handled
- Is the old sealant removed completely?
- What the cure time is
- Which colour the sealant will be