West Berkshire · England
Hermitage Sand Mastic
Professional sand mastic in and around Hermitage, with every bit of old sealant taken out first and a one-year guarantee.
- Draughty sash windows at the surround
- Weathered mastic on the most exposed windows
- Mastic that needs renewing before redecorating
Sand mastic in Hermitage
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. We are often asked to deal with old cement repairs round a window that have failed and window mastic to renew ahead of painting, on timber door frames, period & listed homes and tenement windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hermitage is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Place
- Hermitage (RG18)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sand mastic looks like in Hermitage
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. 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 frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For site and facilities teams at buildings such as Hermitage Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Newbury Racecourse station, any sash windows need sound mastic to keep draughts and rain out.
Hermitage is about 4 miles north of Thatcham, in West Berkshire. Jobs in Hermitage get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our West Berkshire coverage runs to 155 places, and Hermitage is one of them. You can also see our page for Reading, roughly 13 miles from Hermitage.
Work in RG18 is quoted and booked the same way as anywhere else. You’ll find streets such as Newbury Road, Lipscomb Close and Marlston Road. Close by, we work in 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).
Near you in Hermitage
Typical jobs here are in homes near The White Horse pub. The closest station to Hermitage is Newbury Racecourse station, roughly 4 miles south. A little further out are Hampstead Norris Castle (2.4 miles north-east) and West Berkshire Community Hospital (3.3 miles south). For a walk, there’s Snelsmore Common.
What else we do in Hermitage
Your questions about sand mastic in Hermitage
Can you help a landlord with a rental near Newbury Racecourse station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Hermitage?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic beds in well.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Hermitage, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
If you are in Hermitage and need sand mastic, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Advice
When something else is needed
Before you book, it’s worth knowing the limits:
- Sashes that rattle, stick or will not open
- Timber that has rotted
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Timber door frames
- Brick reveals
- Tenement windows
- Sash and case windows
- Period & listed homes
- Stone surrounds
What happens if it’s left?
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. In a small place like Hermitage, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why Hermitage clients choose us
- We’re fully insured
- We leave the area clean and tidy
- Rated 4.9 stars on Google
- ARBOMaster approved applicator
Read how sealant jobs are priced or our reviews.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Leave the new mastic unpainted
- Go gently near the mastic when preparing windows
- Renew mastic before redecorating the windows
- Have rotten timber repaired before new mastic goes in
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
What affects the quote in Hermitage
We quote each job individually. This is what makes a difference:
- The number and length of the joints
- How many areas need sealing
- Mould in or behind the old joints
- The type of sealant required
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
There’s no need for technical detail. Just tell us:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- The address or postcode of the job
- The problem you’ve noticed
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
For landlords and businesses
Letting agents and landlords in Hermitage can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
When to call us in Hermitage
Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.
Keep an eye out for any of the following:
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
- Cracked mastic round a front door frame
- Weathered mastic on the most exposed windows
Homes close to Holy Trinity include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before you book anyone
- Who does the work, and how experienced they are
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- Whether VAT is included