Surrey · England
Window & door mastic in Horton, Surrey
Mastic around window and door frames, sills and patio doors for Horton, backed by a 12-month guarantee. Ask us for a quote.
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
- White mastic on grey or black frames
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
Window mastic in Horton
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you are dealing with mastic that’s falling out in pieces and hard, cracked sealant around windows, we can help, whatever the surface.
Around Horton, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, in Horton and everywhere else we cover.
- Location
- Horton (KT19, KT9)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Ventilate rooms so frames do not stay wet inside
- Clear any debris from frame drain holes
- Clean frames with a soft cloth and soapy water
- Look round the frames every year or so
Silicone can’t usually be painted, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of frames, longer for a whole house, and the area is left clean. For a village or hamlet like Horton, 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.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
- Tell us about any previous sealing or DIY attempts
Ask for a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Read more
Also near Horton
More services for Horton
Why it’s worth doing now in Horton
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we will tell you. Around Horton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Horton
- Tidy, careful work
- Old sealant always removed completely
- We are fully insured
- Trusted Arbo and Everbuild sealants
Horton: your questions answered
Can you help a landlord with a rental near Chessington South station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is Horton in your area for window mastic?
Yes. Our work covers London and the South East, and Horton is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
Where do you work from?
We work from Crawley. Our applicators cover Horton.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
What affects the quote in Horton
You’ll get a clear quote before any work starts. It’s based on:
- The amount of work
- Any working-time requirements on site
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What we need to know
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Windows and doors in Horton
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Fitznells Manor (about 1.7 miles east) are a reminder that the area around Horton has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For landlords with property near Chessington South station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. If you live in an older home near Church of St Mary the Virgin, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Horton is about 1 mile north-west of Epsom, in Surrey. Jobs in Horton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 395 towns and villages across Surrey, from the larger towns to small villages. We also work in London, around 13 miles away.
Our applicators cover all of KT19 and KT9 for window mastic and the streets around it. Streets in the area include Horton Lane, Oakwood Avenue and Jenner Way, all of which we cover. Neighbouring places we cover for window mastic include Chessington (1 mile north), Epsom (1 mile south-east), Ewell (2 miles east), Old Malden (2 miles north-east) and Stoneleigh (2 miles north-east). We also work in nearby towns such as Guildford (14 miles south-west), Woking (12 miles west), Horley (13 miles south-east), Redhill (9 miles south-east), Egham (12 miles north-west) and Reigate (9 miles south-east).
What’s near Horton
We work in homes and buildings around Chessington Community College, Horton Country Park and Kingswood House School and the streets around them. Horton’s nearest station is Chessington South station, roughly 0.9 miles north-west of the centre. Nearby you will also find Epsom Cluster (0.6 miles south-east) and Cockney Museum (2.1 miles north-east). The countryside around Horton includes Bonesgate Open Space and The Lake.
What we’re called out for in Horton
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
People normally contact us when they notice one of these:
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
If you look after a building such as St Mary's CofE (Aided) Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- Who does the work, and how experienced they are
- What happens if the job turns out different
- The length of the guarantee
- What product goes in the joint
Different surfaces, different methods
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.