Slough · England
Window & door mastic in Horton, Slough
Problem with your window and door frames in Horton? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Hard, cracked sealant around windows
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
Window mastic for homes and businesses in Horton
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just call 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. We work on patio & French doors, uPVC windows and composite doors, and the jobs we see most are rushed sealant from a window installation and mastic that’s falling out in pieces.
In a village or hamlet like Horton, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Location
- Horton (SL3, TW19)
- Region
- Slough
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Horton
I let a flat near Sunnymeads station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is Horton within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you get sealant to suit coloured frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
Can new window sealant be painted?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Tell us if you are decorating and we’ll choose accordingly.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
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. We remove it all first.
Horton homes and the weather
With historic houses such as Frogmore House (about 2.5 miles west) nearby, there’s older building stock in the area around Horton as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
Letting a property close to Sunnymeads station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Colnbrook Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Horton is about 3 miles north of Egham, in Slough. Whether you’re in the middle of Horton or further out, we cover window mastic for every kind of property. 31 places in Slough are on our list, large and small. We also work in London, about 19 miles from Horton.
Here we cover the SL3 and TW19 postcode area for window mastic. That includes homes and businesses on Stanwell Road, Bells Lane and Foundry Lane and the roads around them. We also cover Brands Hill (1 mile north), Colnbrook (1 mile north-east), Sunnymeads (1 mile west), Poyle (1 mile north-east) and Wraysbury (1 mile south-west). We also work in nearby towns such as Slough (4 miles north-west), Cippenham (5 miles north-west), Chalvey (4 miles north-west), Britwell (6 miles north-west), Upton (3 miles north-west) and Burnham (7 miles north-west).
Landmarks near Horton
In Horton, that means homes and buildings near The Five Bells Public House, Langley Grammar School and Arthur Jacob Nature Reserve. Horton’s nearest station is Sunnymeads station, roughly 1 mile west of the centre. Other landmarks nearby include Upton Hospital (3.3 miles north-west) and Windsor Castle (3 miles west). The countryside around Horton includes Staines Reservoirs.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Towns and villages near Horton
Also in Horton
When to call us in Horton
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Common reasons people contact us include:
- Mastic that has split away from the wall
- Rain getting in at the frame or under the sill
- Leaking joints at the ends of sills
- Old mastic that has gone black or come away
If you live in an older home near Church of St Michael, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- Is the old sealant removed completely?
- What happens if they find a problem under the old sealant
- Are they insured?
- Who does the work, and how experienced they are
Landlord and commercial work in Horton
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. In a small place like Horton, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Clear the area around the work
- Mention any tricky access
- Keep pets and children clear of the area while we work
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or send us an email.
Advice
Looking after it afterwards
Aftercare is simple:
- Keep timber frames painted
- Wash the frames with mild soapy water
- Keep paint off silicone joints
- Wipe condensation off the frames
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- A sash or casement that won’t close properly
- Rotten timber, which needs a joiner first
- Worn gaskets, brush seals or a door that has dropped
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
What we seal
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
- uPVC windows
- Patio & French doors
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Older cottages and farmhouses around Horton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.
Why us?
- Colour agreed with you before work begins
- Full insurance on every job
- White, clear, grey or another colour, product permitting
- Trusted Arbo and Everbuild sealants
See our cost guide and customer reviews.