Greater London · England
Surbiton Park Sand Mastic
Sand mastic in Surbiton Park from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
- Silicone on a period window that looks wrong
Sand mastic in Surbiton Park, done properly
We work across Surbiton Park renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have cement or filler used on old window joints that has cracked and a silicone bead on a sash window that spoils the look, we can put it right.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Surbiton Park.
There’s a 12-month guarantee on every job, large or small.
- Where
- Surbiton Park (KT6, KT1, KT5)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What sand mastic looks like in Surbiton Park
Historic houses like Hampton Court Palace (about 1.4 miles west) are a reminder that the area around Surbiton Park has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking.
Rented homes near Surbiton station change hands often, and any sash windows need sound mastic to keep draughts and rain out. Homes close to St John's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Surbiton Park is about 1 mile north-west of Surbiton, in Greater London. From the centre of Surbiton Park to the outskirts, sand mastic is available for homes and businesses alike. Our Greater London coverage runs to 764 places, Surbiton Park among them. You can also see our page for London, about 11 miles away.
Our applicators cover all of the KT6, KT1 and KT5 postcode area for sand mastic. You’ll find streets such as Maple Road, Grove Road and North Road, all of which we cover. If you’re just outside Surbiton Park, we cover Seething Wells (1 mile south-west), Long Ditton (1 mile south-west), Thames Ditton (1 mile south-west), Ditton Hill (1 mile south) and Weston Green (2 miles south-west). Larger places within reach include London (11 miles north-east), City of Westminster (10 miles north-east), Marylebone (11 miles north-east), Kensington (8 miles north-east), St Pancras (12 miles north-east) and Shoreditch (13 miles north-east).
Around Surbiton Park
Locally, jobs take us to homes and businesses close to The Hollyfield School and Sixth Form Centre, Hampton Court Park and Coronation Hall pub, among other places. The closest station to Surbiton Park is Surbiton station, roughly 0.5 miles south of the centre. Other landmarks nearby include Bentall Centre (0.9 miles north) and Chessington Castle Hill (2.9 miles south). Green spaces nearby include Kingston Hill Road area and The Lake.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Clear gutters so water does not pour onto the windows
- Plan mastic work ahead of painting
- Find out about consent before window work on a listed home
- Avoid heavy scraping on the mastic joint
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
When to call us in Surbiton Park
Timber frames move with the seasons. That movement opens up the mastic joint over time.
It’s worth asking for a quote if you see:
- Draughty sash windows at the surround
- Old sand mastic that has cracked, crumbled or fallen out
- Silicone on a period window that looks wrong
- Cracked mastic round a front door frame
If you look after a building such as St Andrew's and St Mark's CofE Junior School, larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Is VAT in the price?
- What guarantee comes with the work
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Different surfaces, different methods
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Surbiton Park questions
Is parking a problem for a job in Surbiton Park?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Can you do sand mastic in Surbiton Park?
Yes. Our work covers London and the South East, and Surbiton Park is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
When will the new mastic be hard?
It forms a skin fairly soon and it hardens fully over a longer time. The weather and joint depth both affect it.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels, and we’re fully insured.
What does sand mastic cost?
We do not 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. We agree the price before any work begins.
How long does the job take?
As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we’ll say how long yours will take.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per window, depending on the condition of the joints. In a London area like Surbiton Park, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we agree which joints need doing.
- 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.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Getting a quote
For sand mastic in Surbiton Park, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Advice
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
For anyone letting property in or around Surbiton Park, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Cracked or broken glass
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
- Timber door frames
- Period & listed homes