Kent · England
Window & door mastic in Hernhill, Kent
Window mastic for Hernhill and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
- Draughts coming in around windows and doors
Window mastic in Hernhill: local notes
Hernhill 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. 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.
Rented homes near Selling station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near Church of St Michael, the joint between an old wall and a newer frame is generally the first place rain gets in.
Hernhill is about 3 miles east of Faversham, in Kent. Anywhere in ME13, our applicators can take on window mastic. Our Kent coverage runs to 922 places, and Hernhill is one of them. Our Chelmsford page covers work nearby.
Postcode districts we cover here for window mastic: ME13. We also cover the places around Hernhill: Slutshole (1 mile south-west), Staplestreet (1 mile south-west), Dargate (1 mile north-east), Culmers (1 mile north-west) and Goodnestone (1 mile north-west). We also work in nearby towns such as Ashford (12 miles south), Canterbury (6 miles east), Sittingbourne (10 miles west), Whitstable (4 miles north-east), Faversham (3 miles west) and Herne Bay (8 miles north-east).
Near you in Hernhill
Locally, jobs take us to homes and businesses close to Red Lion pub and Mount Ephraim Gardens and the streets around them. Hernhill’s nearest station is Selling station, roughly 2.3 miles south-west of the centre. Nearby you will also find Chilham Castle (4.5 miles south) and Whitstable and Tankerton Hospital (5.3 miles north-east). Green spaces nearby include Blean Woods RSPB Reserve.
About our window mastic in Hernhill
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you’re dealing with cracked internal joints between frame and plaster and white mastic on grey or black frames, we can put it right.
In a village or hamlet like Hernhill, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Hernhill (ME13)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Hernhill
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Look out for these signs:
- Leaking joints at the ends of sills
- Hard, cracked sealant around windows
- White mastic on grey or black frames
- Cold air getting in at the frame edge
If you look after a building such as Hernhill Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Which colour the sealant will be
- What insurance they hold
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
What affects the cost of window mastic
The quote reflects the job in front of us. We look at:
- The amount of work
- How many rooms, windows or areas are involved
- The product the joint needs
- Whether the work is at height
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- If someone has resealed it before
- Where the job is, and your postcode
- Any access issues, like height or stairs
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and agents in Hernhill can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Wash the frames with mild soapy water
- Keep drainage slots and sill grooves clear
- Keep timber frames painted
- Do not paint over the silicone
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Why it’s worth doing now in Hernhill
Resealing frames is a short job: the visit takes most of a day for a typical house, less for a few frames. Wait for damp to appear and there may be plaster and decorating to sort out too. In a small place like Hernhill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Over 20 years’ experience
- We leave the area clean and tidy
- A 12-month guarantee on all work
Take a look at our cost guide and our reviews.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Faulty window hardware
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Hernhill
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- uPVC windows
- Composite doors
Places near Hernhill
Other services in Hernhill
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself normally takes most of a day for a typical house, less for a few frames, depending on how much there is to do. Somewhere as small as Hernhill, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
Getting a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
Hernhill questions
Is Hernhill 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.
Does living near the coast affect window mastic in Hernhill?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Hernhill, along with the rest of our area.
Do you have insurance?
Yes. We’re fully insured.
Do you work for letting agents?
Yes, often. We can quote for several properties at once.
Will new mastic stop draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we will tell you.
What does window mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Is the work guaranteed?
Yes. Each job is covered for 12 months, inside or out.