Surrey · England
Sand mastic for sash & case windows in Dawesgreen, Surrey
Sand mastic in Dawesgreen from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughty sash windows at the surround
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
Sand mastic for homes and businesses in Dawesgreen
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead, and we will talk through which suits your home. We work on stone surrounds, sash and case windows and timber door frames, and people most often call us about old sand mastic that has cracked, crumbled or fallen out and gaps between timber frames and stone or brick.
Around Dawesgreen, 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.
We stand behind the work with a 12-month guarantee, so you’re covered after we have gone.
- Location
- Dawesgreen (RH2)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. The work generally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Dawesgreen, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Mention any tricky access
- Keep pets and children clear of the area while we work
- Let us know if you’ve seen damp or leaks
Ask for a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved.
Related advice
What affects the quote in Dawesgreen
For a quick quote, just ask. What matters most is:
- The size of the job
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What to tell us for a quote
What to tell us when you ask for a quote:
- The rough size of the job
- Whether it’s a home or a business
- What’s wrong with the joints now
- The address or postcode of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Common questions in Dawesgreen
Can you do sand mastic in Dawesgreen?
Yes. Our work covers London and the South East, and Dawesgreen is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Will you come out to Dawesgreen?
Yes, Dawesgreen is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How much does sand mastic cost in Dawesgreen?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Dawesgreen.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Is the work guaranteed?
You get our 12-month guarantee to all our work.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Sand mastic in Dawesgreen: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Betchworth station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to Church of St Bartholomew include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Dawesgreen is about 3 miles south-west of Reigate, in Surrey. From the centre of Dawesgreen to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Dawesgreen is one of 395 towns and villages in Surrey we cover. Our Crawley page covers work nearby (7 miles or so).
All of RH2 is covered for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on Tapner's Road and Bunce Common Road and the roads around them. Nearby, we also carry out sand mastic in Leigh (1 mile south-east), Bunce Common (1 mile west), Strood Green (1 mile north-west), Irons Bottom (2 miles east) and Brockham (2 miles north-west). Within a short drive, we also cover Guildford (14 miles west), Epsom (9 miles north), Horley (4 miles south-east), Redhill (4 miles north-east), Ewell (10 miles north) and Reigate (3 miles north-east).
Around Dawesgreen
We work in homes and buildings around The Seven Stars Public House. The closest station to Dawesgreen is Betchworth station, roughly 2.6 miles north of the centre. Nearby you’ll also find East Surrey Hospital (4 miles east) and Reigate Priory Museum (2.8 miles north-east). Green spaces nearby include Reigate Heath and Colley Hill.
Common problems we fix in Dawesgreen
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they normally need raking out.
People generally contact us when they notice one of these:
- Window mastic to renew ahead of painting
- Modern sealant on a period surround
- Mastic dropping out of the joint
- Mastic round period door frames that has failed
Managing a site like Burys Court School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- The length of the guarantee
- Whether VAT is included
- Whether all the old sealant comes out first
- How much experience the applicator has
When it isn’t the sealant
It helps to know what we can’t do:
- Damaged stone surrounds
- Sash cords, weights and draught-proofing of the sashes
- Rotten sashes, sills or window boxes (a joiner’s job)
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
What we seal
- Brick reveals
- Sash and case windows
- Timber door frames
- Tenement windows
- Period & listed homes
- Stone surrounds
Places near Dawesgreen
Also in Dawesgreen
Surface by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Aftercare tips
To keep the joints looking good and working properly:
- Don’t run silicone over sand mastic
- Take care around the mastic when scraping paint
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.