Surrey · England
Mid Holmwood Sand Mastic
Problem with your window and door surrounds in Mid Holmwood? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Failed mastic on an exposed elevation
- Tired mastic found when preparing windows for paint
- Draughty sash windows at the surround
Sand mastic for homes and businesses in Mid Holmwood
Sand mastic skins over fairly quickly but full hardening takes longer. Traditional guidance is not to paint over it, so ask us before you decorate. We work on tenement windows, period & listed homes and sash and case windows, and people most often call us about draughty sash windows at the surround and window mastic to renew ahead of painting.
In a village or hamlet like Mid Holmwood, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Location
- Mid Holmwood (RH5)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Places near Mid Holmwood
More services for Mid Holmwood
Common problems we fix in Mid Holmwood
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
Most people get in touch after spotting one of these:
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
If you let a flat or house near Holmwood station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- Is VAT in the price?
- When the joint can take water or movement
- Whether you can choose the colour
- What insurance they hold
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Mid Holmwood: your questions answered
I let a flat near Holmwood station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Mid Holmwood?
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 information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
Is the work guaranteed?
Every job comes with our 12-month guarantee, and we’re fully insured.
How the visit works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Mid Holmwood, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
Get a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Read more
Windows and doors in Mid Holmwood
Historic houses like Polesden Lacey (about 4.2 miles north-west) are a reminder that the area around Mid Holmwood has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as St John's Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of St John the Evangelist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Mid Holmwood is about 2 miles south of Dorking, in Surrey. For sand mastic in and around Mid Holmwood, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We are based in Crawley and cover Surrey. Across Surrey, we cover 395 places, and Mid Holmwood is one of them. You can also see our page for Crawley, about 9 miles away.
Postcode districts we cover here for sand mastic: RH5. Local streets include Horsham Road, Swallow Lane and Mid Holmwood Lane. Neighbouring places we cover for sand mastic include North Holmwood (1 mile north-east), Blackbrook (1 mile north-east), Dorking (2 miles north), Westcott (2 miles north-west) and Wotton (3 miles west). Larger places within reach include Guildford (11 miles west), Woking (13 miles north-west), Epsom (10 miles north), Horley (7 miles east), Redhill (7 miles east) and Ewell (11 miles north).
Around Mid Holmwood
In Mid Holmwood, that means homes and buildings near Inholms Clay Pit, The Priory CofE Voluntary Aided School and The Norfolk Arms, among other places. For rail, the closest station is Holmwood station, about 1.6 miles south. A little further out are Betchworth Castle (2.7 miles north-east) and Mesolithic Museum (3.4 miles west). The countryside around Mid Holmwood includes Vann Lake and Leith Hill.
How the job changes by surface
Period and listed homes
Period homes look their best with traditional materials.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Why it’s worth doing now in Mid Holmwood
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. Around Mid Holmwood, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- Over 20 years’ experience
- Experience in homes, commercial sites and hotels
- Neat joints and a tidy finish
- Arbo and Everbuild products
See what affects the cost or our reviews.
How to look after the new joints
Aftercare is simple:
- Sort the mastic before the decorators arrive
- Find out about consent before window work on a listed home
- Go gently near the mastic when preparing windows
- Make sure water runs off the sill
Do not run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.