West Berkshire · England
Hermitage Window Mastic
Window mastic for Hermitage, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked or shrunken mastic around the frame
- White mastic on grey or black frames
- Rushed sealant from a window installation
Window mastic in Hermitage: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Shaw House (about 3.4 miles south-west) are a reminder that the area around Hermitage has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like Hermitage Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Newbury Racecourse station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Holy Trinity include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hermitage is about 4 miles north of Thatcham, in West Berkshire. We provide window mastic to homeowners, landlords and businesses in Hermitage. Hermitage is one of 155 towns and villages in West Berkshire where we work. We also work in Reading, around 13 miles away.
We work across RG18 for window mastic. We cover properties on Newbury Road, Lipscomb Close and Marlston Road. We also cover the places around Hermitage: Longlane (1 mile south-west), Little Hungerford (1 mile north-east), Oare (1 mile north), Wellhouse (1 mile east) and Curridge (1 mile south-west). Within a short drive, we also cover Newbury (4 miles south-west), Thatcham (4 miles south), Burghfield Common (10 miles east), Speenhamland (4 miles south-west), Hungerford (11 miles west) and Spencers Wood (14 miles east).
Landmarks near Hermitage
We work in homes and buildings around The White Horse pub and the streets around them. For rail, the closest station is Newbury Racecourse station, roughly 4 miles south of the centre. Well-known places in the area include Hampstead Norris Castle (2.4 miles north-east) and West Berkshire Community Hospital (3.3 miles south). Open spaces near Hermitage include Snelsmore Common.
About our window mastic in Hermitage
Homes in Hermitage have every kind of window: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Common call-outs are for cracked or shrunken mastic around the frame and old mastic that has gone black or come away, on timber windows & doors, aluminium frames and window sills.
Homes in small places like Hermitage 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.
Our work is backed for twelve months.
- Place
- Hermitage (RG18)
- Region
- West Berkshire
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Hermitage
Can you help a landlord with a rental near Newbury Racecourse station?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover Hermitage for window mastic?
Yes, Hermitage is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
How long does it take to reseal the windows on a house?
The work takes a few hours for a few frames, or a day or more for a whole house. Access and the amount of old mastic make the biggest difference.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
How the visit works
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job usually takes anything from an hour or two to a full day, depending on how many frames there are, and we explain the cure time before we leave. For a village or hamlet like Hermitage, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Related advice
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Different surfaces, different methods
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Keep jet washers away from the mastic
- Paint up to the joint, not over it
- Clear any debris from frame drain holes
- Air rooms to keep condensation down around windows
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Window sills
- Timber windows & doors
- Patio & French doors
- Composite doors
- Aluminium frames
- uPVC windows
What else we do in Hermitage
How we quote for window mastic
We do not publish a price list, because no two jobs are the same. The quote depends on:
- Working hours on commercial sites
- Whether there’s mould to deal with
- Whether the work is at height
- How many areas need sealing
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Whether it has been sealed before
- A few pictures by email, if you can
For a quote, call 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.
Why deal with it now?
Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Around Hermitage, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why us?
- A sealant colour to suit the surroundings
- Colour agreed with you before any work starts
- Tidy, careful work
- A 12-month guarantee on all work
Read what affects the cost and customer reviews.