Surrey · England
Sand mastic for sash & case windows in Cuddington, Surrey
Sand mastic in Cuddington from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
What we do, step by step
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for a single window, longer for several. Somewhere like Cuddington needs a little journey planning: 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 start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- 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.
Before we arrive
- Let us know about earlier repairs to the joints
- Clear items away from the joints we’re working on
- Try not to wet indoor joints just before the visit
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Advice
How we handle sand mastic in Cuddington
Across Cuddington, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you’re dealing with weathered mastic on the most exposed windows and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
Somewhere as small as Cuddington, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
You get a 12-month guarantee, the same in Cuddington as everywhere else we work.
- Place
- Cuddington (KT17, SM3, SM2)
- Region
- Surrey
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Whether work needs listed building consent
- Damaged stone surrounds
- Timber that has rotted
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Where we work in Cuddington
- Sash and case windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Tenement windows
- Period & listed homes
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Ask a joiner to look at soft timber first
- Take care around the mastic when scraping paint
- Leave the new mastic unpainted
- Ask the planning authority about consent for listed or conservation-area homes
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
What the job involves on each surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
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.
Places near Cuddington
More services for Cuddington
Cuddington: your questions answered
Can you help a landlord with a rental near Cheam station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Can you do sand mastic in Cuddington?
Yes, Cuddington is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we will advise.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
How much does sand mastic cost in Cuddington?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before work begins.
What affects the cost of sand mastic
Jobs vary more than people expect. The main factors:
- When we can work, for business premises
- The number and length of the joints
- Mould in or behind the old joints
- The number of rooms or windows
What you pay reflects the work, not guesswork. That’s why we ask a few questions first.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
What sand mastic looks like in Cuddington
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. With historic houses such as Nonsuch Mansion (about 0.2 miles north-east) nearby, there’s older building stock in the area around Cuddington as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Cheam station? Then any sash windows need sound mastic to keep draughts and rain out. Schools such as Nonsuch High School for Girls are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Church of St Dunstan include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Cuddington is about 1 mile east of Ewell, in Surrey. Every kind of property in Cuddington is covered for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 395 towns and villages across Surrey. You can also see our page for London, about 11 miles away.
We cover every part of the KT17, SM3 and SM2 postcode area for sand mastic and the streets around it. Whether your property is on The Avenue, London Road and Roberts Close or a nearby road, our applicators can take on the job. Neighbouring places we cover for sand mastic include Stoneleigh (1 mile north-west), Ewell (1 mile west), Cheam (1 mile south-east), North Cheam (1 mile north-east) and North Looe (2 miles south). Further out, we also cover Woking (15 miles west), Horley (13 miles south), Redhill (9 miles south), Egham (14 miles west), Reigate (8 miles south) and Walton-on-Thames (8 miles west).
Near you in Cuddington
Typical jobs here are in homes near St Dunstan's Cheam CofE Primary School, Ewell Castle School and The Station pub and the streets around them. Cuddington’s nearest station is Cheam station, roughly 0.7 miles east of the centre. Nearby you will also find St. Anthony's Hospital (1.6 miles north) and The Ashley Centre (2.4 miles south-west). Not far away are Belmont Pastures.
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: 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.