Surrey · England
Window Mastic in Keeper's Corner
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Keeper's Corner. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
- Cracked sealant at the sill ends
Window mastic in Keeper's Corner
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include gaps between the frame and the inside reveal and sealant in the wrong colour for the frame, across uPVC windows, timber windows & doors and composite doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Keeper's Corner is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Place
- Keeper's Corner (RH6, RH10)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Keeper's Corner
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Older cottages and farmhouses around Keeper's Corner can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Arbo and Everbuild products
- Tidy, careful work
- Fully insured
Take a look at what affects the cost and our reviews.
What we can’t put right
We’ll always be straight with you, so here’s what sealant cannot fix:
- Rotten timber, which needs a joiner first
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Where we work in Keeper's Corner
- Patio & French doors
- uPVC windows
- Window sills
- Timber windows & doors
- Composite doors
- Aluminium frames
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Walk round the house once a year and look at the joints
- Ventilate rooms so frames don’t stay wet inside
- Don’t paint over the silicone
- Repaint timber before it’s bare
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
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.
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
How it works
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Keeper's Corner, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Tell us if parking is tricky
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Read more
Do you need window mastic in Keeper's Corner?
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Common reasons people contact us include:
- White mastic on grey or black frames
- Hard, cracked sealant around windows
- Draughts coming in around windows and doors
- Gaps left after new windows were fitted
In the older streets around Church of St Bartholomew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- How long the guarantee is
- When the joint can take water or movement
- What happens if the job turns out different
- How the colour is chosen
Common questions in Keeper's Corner
Can you do window mastic in Keeper's Corner?
Yes, Keeper's Corner is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Is Keeper's Corner within the area you cover?
Yes, Keeper's Corner is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you get sealant to suit coloured frames?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
How much does window mastic cost in Keeper's Corner?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Also near Keeper's Corner
Other services in Keeper's Corner
Keeper's Corner homes and the weather
Historic houses like Saint Hill Manor (about 4.8 miles south-east) are a reminder that the area around Keeper's Corner 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’s traditional sand mastic. 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.
If you look after a building such as Copthorne CofE Junior School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Gatwick Airport station, renewing tired window mastic between tenants heads off draught and damp complaints.
Keeper's Corner is about 3 miles south-east of Horley, in Surrey. If you need window mastic in Keeper's Corner, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Surrey. Keeper's Corner is one of 395 places in Surrey where we work for window mastic.
Work in RH6 and RH10 works the same way as everywhere else we cover. You will find streets such as Effingham Road and Redehall Road. Keeper's Corner is on the B2037, so it’s easy for us to get to with everything needed for window mastic. Other places close to Keeper's Corner include Burstow (1 mile west), Shipley Bridge (1 mile west), Copthorne (1 mile south-west), Fernhill (1 mile west) and Smallfield (1 mile north). Larger places within reach include Epsom (14 miles north-west), Horley (3 miles north-west), Redhill (6 miles north-west), Ewell (15 miles north-west), Reigate (7 miles north-west) and Caterham (9 miles north).
Local landmarks in Keeper's Corner
In Keeper's Corner, that means homes and buildings near The Curious Pig in the Parlour pub and Oakwood School. The closest station to Keeper's Corner is Gatwick Airport station, about 2.3 miles west of the centre. Well-known places in the area include Langley Green Hospital (3.9 miles west) and Effingham Park Motor Museum (1.1 miles south-east). For a walk, there’s Hedgecourt Lake.
How the job changes by surface
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We’ll tell you which suits your home.
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.