Surrey · England
Sand mastic for sash & case windows in Epsom Downs, Surrey
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Epsom Downs and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
Sand mastic in Epsom Downs, done properly
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on period & listed homes, sash and case windows and stone surrounds, and people most often call us about open joints round the window box and mastic that needs renewing before redecorating.
Somewhere as small as Epsom Downs, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Epsom Downs (KT17)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new work lasts. Where a wall is exposed, as many are in small places like Epsom Downs, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Why choose Mr Mastic in Epsom Downs
- A 12-month guarantee on all work
- We’re fully insured
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
Read our cost guide and what customers say.
Signs you need sand mastic in Epsom Downs
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
Keep an eye out for any of the following:
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
- Silicone on a period window that looks wrong
- Patchy fillers round a sash window
In the older streets around Parish Church of St Martin, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- What product goes in the joint
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Check the mastic when you check the paintwork
- Make sure water runs off the sill
- Go gently near the mastic when preparing windows
- Leave the new mastic unpainted
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
How it works
Before we leave, we go over the finished joints with you. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. Somewhere as small as Epsom Downs, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
Get a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Related advice
What affects the quote in Epsom Downs
Your quote is based on your job. We take into account:
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Access and height
- Any working-time requirements on site
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Where the property is
- The problem you’ve noticed
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or drop us an email and describe the job.
Different surfaces, different methods
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Nearby places to Epsom Downs
Also in Epsom Downs
What sand mastic looks like in Epsom Downs
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 Fitznells Manor (about 2.1 miles north) nearby, there’s older building stock in the area around Epsom Downs as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Warren Mead Infant School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Epsom Downs station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Epsom Downs is about 1 mile south-east of Epsom, in Surrey. Anywhere in KT17, our applicators can take on sand mastic. Across Surrey, we cover 395 places, and Epsom Downs is one of them. Our London page covers work nearby, about 14 miles away.
Postcode districts we cover here for sand mastic: KT17. You will find streets such as Longdown Lane South, Bunbury Way and Burgh Heath Road. Close by, we work in Nork (1 mile east), North Looe (1 mile north), Great Burgh (1 mile south-east), Tattenham Corner (1 mile south) and Langley Vale (1 mile south-west). Further out, we also cover Guildford (15 miles west), Woking (14 miles west), Horley (10 miles south), Redhill (7 miles south-east), Egham (15 miles north-west) and Reigate (6 miles south).
Local landmarks in Epsom Downs
Locally, jobs take us to homes and businesses close to Laine Theatre Arts, Priest Hill and Derby Arms and the streets around them. Epsom Downs has its own railway station: Epsom Downs station. Well-known places in the area include Epsom General Hospital (1.3 miles west) and The Ashley Centre (1.3 miles north-west). Not far away are Colley Hill and Cuddington Meadows.
Epsom Downs: your questions answered
Is Epsom Downs in your area for sand mastic?
Yes, Epsom Downs is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Epsom Downs 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’ll give you a fixed price before we start.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like, but they decide.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
When will the new mastic be hard?
The surface skins quite quickly and it hardens fully over a longer time. Timing depends on the weather and the joint.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.