Kent · England
Window & door mastic in Hillborough, Kent
Mastic around window and door frames, sills and patio doors in Hillborough, with a 12-month guarantee on every job. Ask us for a quote.
- Damp patches on the reveal after heavy rain
- Sealant in the wrong colour for the frame
- Draughts coming in around windows and doors
Signs you need window mastic in Hillborough
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
The problems people normally mention when they call include:
- Mastic that has split away from the wall
- Untidy mastic left by window fitters
- Draughts coming in around windows and doors
- Cracked internal joints between frame and plaster
Managing a site like Reculver Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- What happens if the job turns out different
- Which colour the sealant will be
- Is VAT in the price?
- Whether all the old sealant comes out first
Window mastic in Hillborough
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. If you are dealing with gaps where the sill meets the wall and white mastic on grey or black frames, we can put it right, on window sills, patio & French doors and timber windows & doors alike.
Many houses in smaller places like Hillborough have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
All our work comes with our one-year guarantee.
- Place
- Hillborough (CT6)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a smaller place like Hillborough, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why Hillborough customers choose us
- 20+ years of sealant experience
- Fully insured
- Anti-fungal silicone where joints get wet
- Colour agreed with you before work begins
See what affects the cost and customer reviews.
Towns and villages near Hillborough
What else we do in Hillborough
Hillborough: your questions answered
Can you help a landlord with a rental near Herne Bay station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Is Hillborough within the area you cover?
Yes, Hillborough is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Can new window sealant be painted?
Not generally, if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
How long does it take to reseal the windows on a house?
A few frames take a few hours. You will get a timescale with the quote.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
The process
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes most of a day for a typical house, less for a few frames. A visit to Hillborough is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
Getting a quote
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Read more
How the job changes by surface
Composite doors
A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Landlords, agents and businesses in Hillborough
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Window mastic in Hillborough: local notes
Hillborough is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Herne Bay station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around Church of St Mary the Virgin, the joint between an old wall and a newer frame is generally the first place rain gets in.
Hillborough is about 2 miles east of Herne Bay, in Kent. For window mastic in and around Hillborough, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Kent, Hillborough included. Our Kent coverage runs to 922 places, Hillborough among them. Chelmsford is on our list too, about 39 miles from Hillborough.
Jobs for window mastic in CT6 works the same way as everywhere else we cover. Whether your property is on Manor Road, Puffin Road and Neville Road or anywhere close by, we can help. You will find Hillborough on the A299, so it’s easy for us to get to. We also cover the places around Hillborough: Hawthorn (1 mile south-east), Bishopstone (1 mile north), Beltinge (1 mile north-west), Broomfield (1 mile south-west) and Highstead (1 mile south). Within a short drive, we also cover Canterbury (7 miles south-west), Margate (9 miles east), Ramsgate (11 miles east), Broadstairs (11 miles east), Whitstable (6 miles west) and Deal (14 miles south-east).
Local landmarks in Hillborough
We work in homes and buildings around Bishopstone Cliffs and The Huntsman And Horn Public House. The closest station to Hillborough is Herne Bay station, roughly 2.2 miles west. Nearby you’ll also find Whitstable and Tankerton Hospital (5.2 miles west). Green spaces nearby include West Blean and Thornden Woods.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Rotten timber, which needs a joiner first
- A sash or casement that won’t close properly
- Penetrating damp from a failed cavity tray or render
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Where we work in Hillborough
- uPVC windows
- Composite doors
- Aluminium frames
- Patio & French doors
- Window sills
- Timber windows & doors