Kent · England
Window & door mastic in Four Oaks, Kent
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Four Oaks. Fully insured, ARBOMaster approved and guaranteed for a year.
- Draughty joints inside around the window
- Mastic that has split away from the wall
- Rain getting in at the frame or under the sill
Window mastic in Four Oaks
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. Common call-outs are for cracked internal joints between frame and plaster and black, perished sealant on frames, across window sills, patio & French doors and timber windows & doors.
Homes in small places like Four Oaks 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.
Whatever the size of the job, you get the same 12-month guarantee.

- Location
- Four Oaks (ME13)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Four Oaks
We quote each job individually. This is what makes a difference:
- Any mould that needs treating
- Whether the work is at height
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Helping us quote
When you call or email, these details help:
- Photos by email, if that’s easy
- Roughly how big the job is
- Any access issues, like height or stairs
- Where the job is, and your postcode
To get a quote, phone 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 we start.
What we are called out for in Four Oaks
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Signs it’s time to call us include:
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
Schools such as Luddenham School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before you book
- Who turns up on the day
- What the cure time is
- Whether they’re fully insured
- Whether you can choose the colour
Four Oaks questions
Will you come out to Four Oaks?
Yes, Four Oaks is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Faversham station. Can you help?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
What should I tell you?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
Can you do upstairs windows?
Yes, in most cases. Access is planned before work begins, so mention the height and anything in the way.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
How long should I leave it?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Where do you work from?
Mr Mastic is based in Crawley. We cover Four Oaks and the rest of Kent.
How do I get a quote for window mastic in Four Oaks?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or email us with a short description of the job.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Housing providers, facilities teams and property managers book us too in Four Oaks and across Kent. We can quote a run of properties together, and we are fully insured.
Honest limits
In fairness, some problems need a different trade:
- Soft or decayed wood in the frame
- Worn gaskets, brush seals or a door that has dropped
- Broken hinges, locks or handles
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Window sills
What window mastic looks like in Four Oaks
Four Oaks is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Faversham station, renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as St Mary's Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Four Oaks is about 1 mile west of Faversham, in Kent. Four Oaks gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Kent coverage runs to 922 places, Four Oaks among them. Chelmsford is on our list too, around 33 miles away.
Work in ME13 works the same way as everywhere else we cover. Other places close to Four Oaks include Ospringe (1 mile south-east), Norton Ash (1 mile west), Oare (1 mile north-east), Deerton Street (1 mile north-west) and Davington (1 mile east). Further out, we also cover Maidstone (15 miles west), Ashford (13 miles south), Canterbury (10 miles east), Sittingbourne (5 miles west), Whitstable (8 miles east) and Herne Bay (13 miles east).
Around Four Oaks
Locally, jobs take us to homes and businesses close to The Abbey School and Oare Meadow, among other places. The closest station to Four Oaks is Faversham station, roughly 1.8 miles south-east. Other landmarks nearby include Newnham Castle (3.3 miles south-west).
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Keep solvents and bleach off the sealant
- Ventilate rooms so frames do not stay wet inside
- Wash the frames with mild soapy water
- Walk round the house once a year and look at the joints
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just phone 0345 464 0079 or email us.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Places near Four Oaks
What else we do in Four Oaks
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. Somewhere as small as Four Oaks, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Preparing for the visit
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
