Surrey · England
Sand mastic for sash & case windows in Mickleham, Surrey
Problem with your window and door surrounds in Mickleham? We remove the old material, prepare the joints and seal them properly.
- Cracked mastic round a front door frame
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
Common questions in Mickleham
Can you help a landlord with a rental near Box Hill & Westhumble station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Will you come out to Mickleham?
Yes, Mickleham is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
How much does sand mastic cost in Mickleham?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email with a short description of the job.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
How we handle sand mastic in Mickleham
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. We work on tenement windows, brick reveals and stone surrounds, and the jobs we see most are weathered mastic on the most exposed windows and gaps between timber frames and stone or brick.
Around Mickleham, 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.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.
- Location
- Mickleham (RH5)
- Wider area
- Surrey
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Clear gutters so water does not pour onto the windows
- Look over the window mastic once a year
- Do not paint over the new mastic
- Go gently near the mastic when preparing windows
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
What we can’t put right
New sealant cannot fix everything, and we’ll tell you before work begins. Sealant won’t put right:
- Sashes that rattle, stick or will not open
- Rotten sashes, sills or window boxes (a joiner’s job)
- Damaged stone surrounds
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Mickleham
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Timber door frames
- Tenement windows
- Brick reveals
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. Everything old must be removed first.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What we are called out for in Mickleham
Rain on the window surround works into any crack and loosens it further. Exposed elevations generally fail first.
If you can see any of these, it’s time to have the joints looked at:
- Mastic round period door frames that has failed
- Old cement repairs round a window that have failed
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
Homes close to Church of St Michael include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- Whether all the old sealant comes out first
- Whether VAT is included
- Whether you can choose the colour
- What guarantee comes with the work
Places near Mickleham
Also in Mickleham
Why it’s worth doing now in Mickleham
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Mickleham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why choose Mr Mastic in Mickleham
- Fully insured
- We never seal over old sealant
- ARBOMaster approved applicator
- Over 20 years’ experience
Read our cost guide or what customers say.
How the visit works
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere like Mickleham needs a little journey planning: 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 look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
Want a quote for sand mastic? Please call 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Different surfaces, different methods
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
What sand mastic looks like in Mickleham
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Polesden Lacey (about 2.4 miles west) are a reminder that the area around Mickleham has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For landlords with property near Box Hill & Westhumble station, older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as St Michael's CofE Aided Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Mickleham is about 2 miles south of Leatherhead, in Surrey. Across the RH5 area, we can carry out sand mastic at your property. Mickleham is one of 395 places in Surrey we cover. You can also see our page for Crawley, about 12 miles away.
Work in RH5 is quoted and booked the same way as anywhere else. Whether your property is on Old London Road, School Lane and Dell Close or anywhere close by, we can help. Close by, we work in Westhumble (1 mile south-west), Leatherhead (2 miles north), Pixham (2 miles south), Fetcham (2 miles north-west) and Great Bookham (2 miles west). We also work in nearby towns such as Guildford (11 miles west), Woking (11 miles west), Epsom (5 miles north-east), Horley (9 miles south-east), Redhill (7 miles east) and Ewell (6 miles north-east).
Landmarks near Mickleham
We work in homes and buildings around Norbury Park, The Ashcombe School and Box Hill School, among other places. Mickleham’s nearest station is Box Hill & Westhumble station, roughly 1.2 miles south. Other landmarks nearby include Headley Court (2.4 miles north-east) and Betchworth Castle (2.5 miles south-east). For a walk, there’s Box Hill and Reigate Heath.