Kent · England
Arpinge Window Mastic
Mastic around window and door frames, sills and patio doors in Arpinge, with a one-year guarantee on every job. Call for a quick quote.
- Rushed sealant from a window installation
- Draughty joints inside around the window
- Mastic that has split away from the wall
How we handle window mastic in Arpinge
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We work on uPVC windows, window sills and patio & French doors, and the jobs we see most are cracked or shrunken mastic around the frame and rain getting in at the frame or under the sill.
Outdoor sealant needs dry, clean surfaces, so work on frames around Arpinge is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Every job is covered by our one-year guarantee.

- Where
- Arpinge (CT18)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we’re called out for in Arpinge
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Most people get in touch when they notice something like this:
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
If you let a flat or house near Folkestone West station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What your quote should include
- What happens if the job turns out different
- How long the guarantee is
- Which sealant they’ll use, and why
- Who turns up on the day
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Common questions in Arpinge
Is window mastic in a coastal place like Arpinge any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Arpinge within the area you cover?
Yes. Arpinge 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.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before we start.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
Can you reach windows above the ground floor?
Generally, yes. Access is planned before work begins, so mention the height and anything in the way.
How it works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a morning for a couple of windows and a door from start to finish. For a village or hamlet like Arpinge, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Mention any tricky access
- Clear the area around the work
- Tell us about any water getting in
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Related advice
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Check the mastic once a year
- Paint up to the joint, not over it
- Wipe condensation off the frames
- Make sure the drainage slots are not blocked
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
What affects the cost of window mastic
There’s no set price list, because jobs vary so much. The quote depends on:
- Access and height
- Mould in or behind the old joints
- Any working-time requirements on site
- How many rooms, windows or areas are involved
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us.
What to tell us for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
If you are in Arpinge and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Towns and villages near Arpinge
Also in Arpinge
What the job involves on each surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.
What happens if it’s left?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Where a wall is exposed, as many are in small places like Arpinge, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Why Arpinge clients choose us
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- We’re fully insured
- Neat joints and a tidy finish
See what affects the cost and customer reviews.
Window mastic in Arpinge: local notes
Arpinge is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
In the older streets around St Oswald's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as Harcourt Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Arpinge is about 1 mile south-west of Hawkinge, in Kent. Every kind of property in Arpinge can book us for window mastic. Every job comes with our 12-month guarantee. Arpinge is one of 922 towns and villages in Kent where we work for window mastic. For nearby work, see our Chelmsford page, about 52 miles away.
Every address in CT18 is covered for window mastic, from the main roads to the quietest streets. If you’re just outside Arpinge, we cover Hawkinge (1 mile north-east), Densole (2 miles north-east), Old Hawkinge (2 miles east), Swingfield Minnis (3 miles north-east) and Elham (3 miles north). We also work in nearby towns such as Ashford (12 miles west), Canterbury (12 miles north), Dover (8 miles east), Deal (14 miles north-east), Hythe (3 miles south-west) and Tower Hamlets (7 miles east).
Around Arpinge
We work in homes and buildings around The Cat & Custard Pot pub. The nearest railway station is Folkestone West station, about 1.7 miles south-east of the centre. Other landmarks nearby include Royal Victoria Hospital (2.2 miles south-east) and Folkestone Castle (1.4 miles south-east). Not far away are Cheriton Hill.
