West Berkshire · England
Window & door mastic in Highclere, West Berkshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Highclere and across West Berkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
Why deal with it now?
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Older cottages and farmhouses around Highclere can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
Why us?
- Tidy, careful work
- You choose the colour before work begins
- Any old sealant cut out fully, not covered over
- Rated 4.9 stars on Google
See our cost guide or what customers say.
About our window mastic in Highclere
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. Typical jobs include rushed sealant from a window installation and cold air getting in at the frame edge, across window sills, composite doors and timber windows & doors.
Somewhere as small as Highclere, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Where
- Highclere (RG20)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of window mastic
For a quick quote, just ask. What matters most is:
- The number of rooms or windows
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- The size of the job
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 we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
To help us quote quickly, please include:
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- Where the job is, and your postcode
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work and give you a clear price.
Surface by surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a morning for a couple of windows and a door and we leave things clean and tidy. In a small place like Highclere, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
Ask for a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Related advice
When something else is needed
A few problems are outside what sealant work can do:
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp coming through the wall itself rather than the frame joint
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Highclere
- Timber windows & doors
- Composite doors
- Aluminium frames
- Window sills
- Patio & French doors
- uPVC windows
Highclere homes and the weather
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Highclere Castle (about 1.4 miles south-east) nearby, there’s older building stock in the area around Highclere as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Woolton Hill Junior School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Newbury station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Church of St Michael Archangel include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Highclere is about 4 miles south-west of Newbury, in West Berkshire. Highclere gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. Reading is on our list too, around 19 miles away.
Here we cover the RG20 postcode area for window mastic. You will find streets such as Tubb's Lane, Arkwright Close and Coombe Corner, and we cover them all. We also cover the places around Highclere: Penwood (1 mile north-east), Woolton Hill (1 mile north), Hollington (1 mile south-west), Enborne Row (2 miles north) and Wash Water (2 miles north-east). Within a short drive, we also cover Newbury (4 miles north-east), Thatcham (6 miles north-east), Burghfield Common (14 miles east), Speenhamland (5 miles north-east), Hungerford (8 miles north-west) and Lambourn (13 miles north-west).
Local landmarks in Highclere
Locally, jobs take us to homes and businesses close to The Clere School and the streets around them. For rail, the closest station is Newbury station, roughly 4.3 miles north-east. Well-known places in the area include Newbury Castle (3.9 miles north) and West Berkshire Community Hospital (5.5 miles north-east). Green spaces nearby include Audrey's Meadow and Sidown Hill.
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Questions from Highclere
Will you come out to Highclere?
Yes, we do. 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.
Can you help a landlord with a rental near Newbury station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Where do you work from?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Can you get sealant to suit coloured 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.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Is the work guaranteed?
Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.