Kent · England
Bobbing Window Mastic
Window mastic across Bobbing and nearby, with old sealant always removed completely.
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
- Cracked internal joints between frame and plaster
What happens on the day
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a morning for a couple of windows and a door. Somewhere as small as Bobbing, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
- Mention any tricky access
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Read more
How we handle window mastic in Bobbing
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. Common call-outs are for mastic that’s falling out in pieces and a bead that doesn’t match the frame, on uPVC windows, composite doors and timber windows & doors.
Somewhere as small as Bobbing, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Big or small, it’s backed by our one-year guarantee.
- Place
- Bobbing (ME9)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of window mastic
The quote reflects the job in front of us. We look at:
- Any working-time requirements on site
- The old material and how stubborn it is
- Mould in or behind the old joints
- The size of the job
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
When you call or email, it’s useful to know:
- How we’d reach the joints
- The problem you’ve noticed
- A few photos by email, if you can
- Where the job is, and your postcode
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A door that needs adjusting, rehanging or new seals
- Rotten timber, which needs a joiner first
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Where we work in Bobbing
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
Towns and villages near Bobbing
Other services in Bobbing
Bobbing homes and the weather
Bobbing is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Bartholomew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Grove Park Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Newington station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Bobbing is about 2 miles west of Sittingbourne, in Kent. Anywhere in ME9, our applicators can take on window mastic. Our Kent coverage runs to 922 places, Bobbing among them. For nearby work, see our Chelmsford page, about 28 miles away.
Our applicators cover all of ME9 for window mastic. If you need window mastic at a property on Bobbing Hill, Cold Harbour Lane and Ladyfields Close or anywhere close by, we can help. We also cover Keycol (1 mile west), Chestnut Street (1 mile south-west), Danaway (1 mile south-west), Newington (1 mile west) and Oad Street (2 miles south-west). Further out, we also cover Maidstone (9 miles south-west), Gravesend (15 miles west), Whitstable (14 miles east), Faversham (8 miles east), Minster (7 miles north-east) and Kings Hill (14 miles south-west).
Landmarks near Bobbing
Locally, jobs take us to homes and businesses close to Westlands School and the streets around them. The closest station to Bobbing is Newington station, roughly 1.4 miles west. Nearby you will also find Court Hall Museum (1.4 miles east) and Bayford Court (1.9 miles east).
How the job changes by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that’s what we find.
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Questions from Bobbing
Does living near the coast affect window mastic in Bobbing?
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.
Can you help a landlord with a rental near Newington station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Do you come to Bobbing?
Yes, we do. Our applicators work in Bobbing, and the service is the same as everywhere else.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
What do you need from me for a quote?
Let us know what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Why deal with it now?
Not every sealant suits a window. 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. In a small place like Bobbing, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Bobbing
- Neat joints and a tidy finish
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
- White, clear, grey or coloured to suit, where the product allows
Read our cost guide and customer reviews.