Kent · England
Oversland Window Mastic
Window mastic for Oversland and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Draughty joints inside around the window
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
Window mastic for homes and businesses in Oversland
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you are dealing with cracked or shrunken mastic around the frame and whistling draughts around closed windows, we can put it right.
Homes in small places like Oversland often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Your job is guaranteed for a year, as with all our work.

- Where
- Oversland (ME13)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Oversland homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Belmont House and Gardens (about 4.8 miles west) are a reminder that the area around Oversland 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.
Letting a property close to Selling station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Schools such as Boughton-under-Blean and Dunkirk Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Oversland is about 4 miles south-east of Faversham, in Kent. Oversland gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. 922 places in Kent are on our list. Chelmsford is on our list too, about 37 miles from Oversland.
Here we cover the ME13 postcode area for window mastic. Window mastic is available to properties on Dunkirk Road and South Street. If you are just outside Oversland, we cover Winterbourne (1 mile north-east), South Street (1 mile west), Hickmans Green (1 mile north), Neames Forstal (1 mile south-west) and Crouch (1 mile north-west). Larger places within reach include Ashford (10 miles south), Canterbury (5 miles east), Sittingbourne (10 miles north-west), Whitstable (6 miles north-east), Faversham (4 miles north-west) and Herne Bay (10 miles north-east).
Landmarks near Oversland
Locally, jobs take us to homes and businesses close to Mount Ephraim Gardens and The Sondes Arms and the streets around them. The nearest railway station is Selling station, roughly 0.6 miles west of the centre. Other landmarks nearby include Eastbridge Hospital of St Thomas the Martyr (5.3 miles east) and Tower keep castle at Chilham (2.6 miles south). Open spaces near Oversland include Blean Woods RSPB Reserve.
When something else is needed
A few problems are outside what sealant work can do:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Timber windows & doors
- uPVC windows
- Composite doors
- Patio & French doors
- Window sills
- Aluminium frames
Why deal with it now?
If you’re painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Around Oversland, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is generally more efficient than separate visits. We’ll give you a clear quote for the lot.
Why Oversland clients choose us
- 20+ years of sealant experience
- 180+ five-star Google reviews
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
Read what affects the cost and our reviews.
How to look after the new joints
So the new joints stay in good condition:
- Wipe condensation off the frames
- Avoid harsh chemicals near the mastic
- Check the mastic once a year
- Repaint timber before it’s bare
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Your questions about window mastic in Oversland
Can you help a landlord with a rental near Selling station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is Oversland within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
How long will my window job take?
Allow a morning for a couple of windows and a door. Access and the amount of old mastic make the biggest difference.
Are you insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
Towns and villages near Oversland
Also in Oversland
Do you need window mastic in Oversland?
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.
Look out for these signs:
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
For an older house near a landmark such as Church of St Peter and St Paul, the joint between an old wall and a newer frame is normally the first place rain gets in.
What your quote should include
- What guarantee comes with the work
- What product goes in the joint
- What insurance they hold
- Whether you can choose the colour
The process
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take most of a day for a typical house, less for a few frames. In a small place like Oversland, access is usually 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.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, 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.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
- On commercial sites, let us know about site rules
How to get a quote
Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
