Surrey · England
Sand mastic for sash & case windows in Holmethorpe, Surrey
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Holmethorpe. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- A silicone bead on a sash window that spoils the look
- Weathered mastic on the most exposed windows
- Gaps round a timber door in stone or brick
Sand mastic in Holmethorpe, done properly
Across Holmethorpe, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. Typical jobs include gaps where the frame meets the masonry and cracked mastic round a front door frame, on period & listed homes, brick reveals and tenement windows.
In a smaller place like Holmethorpe, some walls face open ground and catch the full force of the weather. That is hard on the mastic around frames and sills.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Holmethorpe (RH1, RH9)
- Region
- Surrey
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for sand mastic
We don’t publish a price list. The quote depends on:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- The size of the job
- Whether old sealant or filler has to be cut out
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Asking for a quote
To help us quote quickly, please include:
- The address or postcode of the job
- If someone has resealed it before
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What else we do in Holmethorpe
Surface by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Around Holmethorpe, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why us?
- 180+ five-star Google reviews
- We are fully insured
- A 12-month guarantee on all work
- We never seal over old sealant
What we cannot put right
In fairness, there are a few things sealant won’t fix:
- Sashes that need overhauling
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Where we work in Holmethorpe
- Timber door frames
- Brick reveals
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Tenement windows
Holmethorpe homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Redhill station, cracked sand mastic around sash windows lets in the draughts tenants complain about. For an older house near a landmark such as Holy Trinity, the joint between an old wall and a newer frame is usually the first place rain gets in. Managing a site like East Surrey College? Then the mastic around its windows and doors needs looking after like any other building’s.
Holmethorpe is about 1 mile north-east of Redhill, in Surrey. If you need sand mastic in Holmethorpe, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Surrey from our Crawley base, Holmethorpe included. Our Surrey coverage runs to 395 places, and Holmethorpe is one of them. You can also see our page for Crawley, roughly 10 miles from Holmethorpe.
We cover every part of RH1 and RH9 for sand mastic. You’ll find streets such as Mill Lane, Devon Road and Orpin Road. If you are just outside Holmethorpe, we cover South Merstham (1 mile north-east), Redhill (1 mile south-west), Gatton (1 mile north-west), Nutfield (1 mile south-east) and Merstham (1 mile north). We also work in nearby towns such as Epsom (8 miles north-west), Horley (5 miles south), Ewell (8 miles north-west), Walton-on-Thames (14 miles north-west), Caterham (4 miles north-east) and Dorking (8 miles west).
Around Holmethorpe
We work in homes and buildings around Inn on the Pond, Lime Tree Primary School and The Carrington School, among other places. The closest station to Holmethorpe is Redhill station, roughly 0.8 miles south-west. Well-known places in the area include East Surrey Hospital (2.2 miles south) and The Belfry (0.9 miles south-west). Green spaces nearby include Colley Hill and Reigate Heath.
Aftercare tips
After the cure time, these simple habits help:
- Avoid heavy scraping on the mastic joint
- Don’t paint over the new mastic
- Plan mastic work ahead of painting
- Look over the window mastic once a year
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
The process
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. A visit to Holmethorpe 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 each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Related advice
FAQs for Holmethorpe
I let a flat near Redhill station. Can you help?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Is Holmethorpe in your area for sand mastic?
Yes, Holmethorpe is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we’re using and why.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We will tell you what to expect for your job.