Surrey · England
Sand Mastic in Ranmore Common
Specialist sand mastic for Ranmore Common: careful preparation, the right product and tidy work. Call for a quick quote.
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
- Crumbling sand mastic round a window
How we handle sand mastic in Ranmore Common
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. Typical jobs include weathered mastic on the most exposed windows and old cement repairs round a window that have failed, across stone surrounds, period & listed homes and brick reveals.
Mastic can only go onto a dry, clean joint, so window work in Ranmore Common is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Each job carries a 12-month guarantee.
- Location
- Ranmore Common (RH5)
- Region
- Surrey
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
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.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Landlords, agents and businesses in Ranmore Common
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Do you need sand mastic in Ranmore Common?
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
People normally contact us after spotting something like this:
- Old cement repairs round a window that have failed
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
- Cracked mastic round a front door frame
Schools such as Surrey Hills All Saints Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- What the quote includes, VAT included or not
- Whether you can choose the colour
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
Towns and villages near Ranmore Common
What else we do in Ranmore Common
Common questions in Ranmore Common
Do you work for landlords with property near Dorking West station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Will you come out to Ranmore Common?
Yes. Ranmore Common is within the area we cover, which takes in towns, villages and rural addresses. 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 offer different sealant colours?
In most cases you can choose. We will tell you which colours the right product comes in.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
What happens if it’s left?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and finishes neatly against the masonry. Where a wall is exposed, as many are in small places like Ranmore Common, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why Ranmore Common clients choose us
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
- More than 20 years in sealant work
Read what affects the cost and what customers say.
Different surfaces, different methods
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we’ll confirm what’s needed.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Keeping the joints in good condition
So the new joints stay in good condition:
- Leave the new mastic unpainted
- Go gently near the mastic when preparing windows
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
How it works
Most of a good job is in the preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Ranmore Common, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details and send photos if you have them.
Related advice
Frames and glazing around Ranmore Common
Historic houses like Polesden Lacey (about 1.2 miles north) are a reminder that the area around Ranmore Common has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Barnabas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Dorking West station, any sash windows need sound mastic to keep draughts and rain out.
Ranmore Common is about 2 miles north-west of Dorking, in Surrey. Every kind of property in Ranmore Common is covered for sand mastic. The work is guaranteed for a year. Our Surrey coverage runs to 395 places, and Ranmore Common is one of them. There’s also a page for Crawley, about 12 miles away.
Postcode districts we cover here for sand mastic: RH5. Other places close to Ranmore Common include Westcott (1 mile south), Westhumble (2 miles north-east), Dorking (2 miles south-east), Pixham (2 miles east) and Wotton (2 miles south-west). Further out, we also cover Guildford (9 miles west), Woking (10 miles north-west), Epsom (8 miles north-east), Horley (10 miles south-east), Redhill (8 miles east) and Ewell (9 miles north-east).
Local landmarks in Ranmore Common
We work in homes and buildings around Pippbrook House, The Priory CofE Voluntary Aided School and Milton Heath and The Nower and the streets around them. For rail, the closest station is Dorking West station, roughly 1.1 miles east of the centre. Well-known places in the area include Betchworth Castle (3 miles east) and Mesolithic Museum (3.3 miles south-west). The countryside around Ranmore Common includes Box Hill and Combe Bottom.