Surrey · England
Sand mastic for sash & case windows in South Earlswood, Surrey
Sand mastic across South Earlswood and nearby, with every bit of old sealant taken out first.
- Wind and rain getting in round a sash window
- Mastic dropping out of the joint
- Open joints round the window box
How we handle sand mastic in South Earlswood
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. If you’re dealing with failed mastic on an exposed elevation and gaps between timber frames and stone or brick, we can help.
Around South Earlswood, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
All of our work is guaranteed for twelve months, in South Earlswood and everywhere else we cover.
- Where
- South Earlswood (RH1)
- Region
- Surrey
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Stone surrounds
The stone is treated with care when the old mastic comes out.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours per window, depending on the condition of the joints, depending on the amount of work. Somewhere as small as South Earlswood, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
Get a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Advice
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Honest limits
Before booking, it’s worth knowing the limits too:
- Putty and glazing repairs
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Sash and case windows
- Timber door frames
- Period & listed homes
- Brick reveals
- Tenement windows
- Stone surrounds
Should I try it myself first?
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.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Your questions about sand mastic in South Earlswood
Is South Earlswood within the area you cover?
Yes. South Earlswood is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Earlswood (Surrey) station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Do you offer different sealant colours?
We help you choose a colour that suits. The product needed can limit the range.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Do you guarantee sand mastic work?
Our 12-month guarantee covers every job.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
When to call us in South Earlswood
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint, and they generally need raking out.
If you can see any of these, it’s time to have the joints looked at:
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
If you let a flat or house near Earlswood (Surrey) station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- What guarantee comes with the work
- Who turns up on the day
- Whether all the old sealant comes out first
- How hidden problems are handled
Also in South Earlswood
Quotes for sand mastic in South Earlswood
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- Mould in or behind the old joints
- The size of the job
- When we can work, for business premises
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll go through it with you.
What we need to know
To help us quote quickly, please include:
- How we’d reach the joints
- Whether it’s a home or a business
- Where the property is
- Photos by email, if that is easy
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.
What sand mastic looks like in South Earlswood
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Christ the King, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Salfords Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
South Earlswood is about 2 miles south of Redhill, in Surrey. Homes, rented property, offices and hotels in South Earlswood is covered for sand mastic. Every job comes with our one-year guarantee. Our Surrey coverage runs to 395 places, South Earlswood among them. Our Crawley page covers work nearby.
Our applicators cover all of RH1 for sand mastic and the streets around it. That includes homes and businesses on Maple Road, Heston Road and Horley Road. We also cover Earlswood (1 mile north), Salfords (1 mile south), Meadvale (1 mile north-west), Redhill (2 miles north) and South Nutfield (2 miles north-east). Larger places within reach include Epsom (9 miles north-west), Ewell (10 miles north), Caterham (6 miles north-east), Dorking (7 miles west), Ashtead (9 miles north-west) and Leatherhead (9 miles north-west).
Near you in South Earlswood
In South Earlswood, that means homes and buildings near The Flying Scud pub, Reigate School and Earlswood Common. The closest station to South Earlswood is Earlswood (Surrey) station, about 0.9 miles north of the centre. Well-known places in the area include The Belfry (1.8 miles north) and Reigate Priory Museum (2.2 miles north-west). The countryside around South Earlswood includes Mercers Lake and Colley Hill.