Surrey · England
Merle Common Sand Mastic
Sand mastic for Merle Common, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
What we are called out for in Merle Common
Some old mastic was never deep enough. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
The problems people usually mention when they call are:
- Mastic worn away on windows facing the weather
- Gaps round a timber door in stone or brick
- Silicone on a period window that looks wrong
- Old cement repairs round a window that have failed
Letting a property close to Hurst Green station? Then any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
How we handle sand mastic in Merle Common
Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. If you’re dealing with gaps between timber frames and stone or brick and window mastic to renew ahead of painting, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Merle Common is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, large or small.
- Place
- Merle Common (RH8)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Sand mastic in Merle Common: local notes
With historic houses such as Chartwell (about 3.3 miles north-east) nearby, there’s older building stock in the area around Merle Common as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Chartwell, about 3.3 miles north-east, is one of the historic houses in the wider area around Merle Common, and older homes nearby need a sealant that suits their walls. If you look after a building such as Holland Junior School, its window and door frames need their mastic kept sound, just like a home’s.
Merle Common is about 6 miles south-east of Caterham, in Surrey. We provide sand mastic to homes and businesses in Merle Common and nearby, as part of our work across Surrey. Our area takes in 395 places across Surrey, from the larger towns to small villages. We also work in Crawley, around 12 miles away.
All of RH8 is covered for sand mastic. Neighbouring places we cover for sand mastic include Crowhurst (1 mile south-west), Troy Town (2 miles south-east), Hurst Green (2 miles north-west), Pains-Hill (2 miles north) and Crowhurst Lane End (2 miles south-west). Further out, we also cover Epsom (14 miles north-west), Horley (8 miles west), Redhill (8 miles west), Ewell (15 miles north-west), Reigate (9 miles west) and Caterham (6 miles north-west).
Landmarks near Merle Common
Locally, jobs take us to homes and businesses close to Oxted School and the streets around them. The nearest railway station is Hurst Green station, roughly 1.4 miles north. Nearby you’ll also find Tandridge Priory (2.1 miles north) and Haxted Watermill Museum (2.5 miles south). Open spaces near Merle Common include Botley Hill and Bay Pond.
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a few hours per window, depending on the condition of the joints, depending on how much there is to do. For a village or hamlet like Merle Common, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Mention if the joints have been sealed before
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.
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What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Cracked or broken glass
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Brick reveals
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
Why it’s worth doing now in Merle Common
New sash windows are a major, costly change and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like Merle Common, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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.
Why us?
- Experience in homes, commercial sites and hotels
- ARBOMaster approved applicator
- We never seal over old sealant
- Trusted Arbo and Everbuild sealants
Read what affects the cost or customer reviews.
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Questions from Merle Common
Can you help a landlord with a rental near Hurst Green station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Merle Common?
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.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Merle Common, along with the rest of our area.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
Is it possible to take out silicone and use sand mastic instead?
Yes, we do this often. The old silicone has to come out completely so the mastic beds in well.
Nearby places to Merle Common
What else we do in Merle Common
Landlords, agents and businesses in Merle Common
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.