Slough · England
Window Mastic in Huntercombe
Professional window mastic in and around Huntercombe, with every bit of old sealant taken out first.
- Rain getting in at the frame or under the sill
- Gaps between the frame and the inside reveal
- White mastic on grey or black frames
Common problems we fix in Huntercombe
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant cannot stretch, it splits.
People usually contact us after spotting something like this:
- Cracked sealant at the sill ends
- A bead that doesn’t match the frame
- Whistling draughts around closed windows
- Water coming in at the bottom corners of a door
Schools such as Cippenham Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- How long to leave it before use
- Is the old sealant removed completely?
- Who does the work, and how experienced they are
- How long the guarantee is
Window mastic in Huntercombe, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We’re often asked to deal with damp patches on the reveal after heavy rain and a bead that doesn’t match the frame, on composite doors, uPVC windows and timber windows & doors.
Many houses in smaller places like Huntercombe have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Huntercombe (SL1, SL6, SL2)
- Region
- Slough
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Around Huntercombe, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why choose Mr Mastic in Huntercombe
- 180+ five-star Google reviews
- Old sealant always removed completely
- A 12-month guarantee on all work
- Colour agreed with you before work begins
Take a look at our cost guide and our reviews.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
- Patio & French doors
- Aluminium frames
Questions from Huntercombe
Is Huntercombe in your area for window mastic?
Yes, Huntercombe is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
I let a flat near Burnham station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
How do I get a quote for window mastic in Huntercombe?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or send us an email and let us know what needs doing and where.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can you do upstairs windows?
Yes, where it’s safe. For high or awkward windows, we’ll tell you what access is needed.
What information do you need?
Tell us what needs doing and where. We’ll ask anything else we need to know.
Can you seal over the old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How the job changes by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
Landlords, agents and businesses in Huntercombe
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We also work for property managers and facilities teams in Huntercombe and across Slough. We can quote a run of properties together, and we are fully insured.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve 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. For a job in Huntercombe, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
Get a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Advice
Also near Huntercombe
Also in Huntercombe
Aftercare tips
Good habits help new joints last longer. Our tips:
- Avoid blasting the frames with a pressure washer
- Keep drainage slots and sill grooves clear
- Keep timber frames painted
- Paint up to the joint, not over it
Keep the new mastic undisturbed while it cures, for as long as we advise. Do not point a pressure washer at the joints.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
Window mastic in Huntercombe: local notes
Historic houses like Dorney Court (about 1.4 miles south-west) are a reminder that the area around Huntercombe 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 is traditional sand mastic. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to St. Andrew's Shared Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Burnham station, renewing tired window mastic between tenants heads off draught and damp complaints.
Huntercombe is about 2 miles west of Slough, in Slough. Our applicators cover window mastic for homeowners, landlords and businesses in Huntercombe. 31 places in Slough are on our list. You can also see our page for Reading, about 15 miles away.
Work in SL1, SL6 and SL2 is quoted and booked the same way as anywhere else. That includes homes and businesses on Bath Road, Clare Road and Conway Road. If you’re just outside Huntercombe, we cover Burnham (1 mile north), Cippenham (1 mile south-east), Lake End (1 mile south-west), Dorney (1 mile south) and Dorney Reach (1 mile south-west). Within a short drive, we also cover Langley (5 miles east), Upton (3 miles south-east), Datchet (4 miles south-east), Stoke Poges (3 miles north-east), Ditton (4 miles south-east) and Farnham Common (3 miles north-east). Huntercombe is one of the larger places we cover in Slough.
What’s near Huntercombe
We work in homes and buildings around Haymill Valley, Westgate School and Ye Olde Huntercombe Arms. Huntercombe has its own railway station: Burnham station. Well-known places in the area include Windsor Castle (3.3 miles south-east) and Upton Hospital (2.8 miles east). For a walk, there’s Taplow Lake and Bray Pit.