West Berkshire · England
Window & door mastic in Hell Corner, West Berkshire
Window mastic in Hell Corner from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
Questions from Hell Corner
Will you come out to Hell Corner?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Hell Corner in your area for window mastic?
Yes. Our work covers London and the South East, and Hell Corner is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
How many windows can you do in a day?
A handful of frames is a short visit, while a whole house takes longer. We confirm the timing with your quote.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
Can new window sealant be painted?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
How we handle window mastic in Hell Corner
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. We work on uPVC windows, window sills and composite doors, and the jobs we see most are gaps where the sill meets the wall and damp patches on the reveal after heavy rain.
Somewhere as small as Hell Corner, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Hell Corner (RG17)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Faulty window hardware
- A door that needs adjusting, rehanging or new seals
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Window sills
- Composite doors
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The visit itself normally takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. For a village or hamlet like Hell Corner, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Preparing for the visit
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
When to call us in Hell Corner
Mastic ages in the weather. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
Signs it’s time to call us include:
- Gaps where the sill meets the wall
- Mastic that is falling out in pieces
- Gaps left after new windows were fitted
- Draughty joints inside around the window
Letting a property close to Kintbury station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before you book anyone
- What guarantee comes with the work
- What insurance they hold
- How the surfaces are prepared before sealing
- When the joint can take water or movement
Why act early in Hell Corner
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Where a wall is exposed, as many are in small places like Hell Corner, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- We never seal over old sealant
- Sealant colour chosen to suit
- One-year guarantee on every job
- Neat joints and a tidy finish
Take a look at our cost guide or customer reviews.
Also near Hell Corner
Other services in Hell Corner
How we quote for window mastic
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- How many areas need sealing
- Which sealant suits the joint
- The number and length of the joints
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
To help us quote quickly, let us know:
- A few photos by email, if you can
- What’s wrong with the joints now
- Whether it’s a home or a business
- How we’d reach the joints
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
What window mastic looks like in Hell Corner
With historic houses such as Stargroves (about 2.6 miles south-east) nearby, there’s older building stock in the area around Hell Corner as well as newer homes. 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. 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.
For an older house near a landmark such as Church of St Laurence, the joint between an old wall and a newer frame is normally the first place rain gets in. Schools such as Inkpen Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Hell Corner is about 6 miles west of Newbury, in West Berkshire. Hell Corner gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our West Berkshire coverage runs to 155 places, Hell Corner among them. Our Reading page covers work nearby.
Here we cover the RG17 postcode area for window mastic. We also cover the places around Hell Corner: Inkpen Common (1 mile west), Inkpen (1 mile west), Upper Green (1 mile south-west), Kintbury (2 miles north) and Lower Green (2 miles west). We also work in nearby towns such as Newbury (6 miles east), Thatcham (8 miles east), Speenhamland (6 miles east), Hungerford (4 miles north-west), Lambourn (10 miles north) and Shaw (6 miles east).
Around Hell Corner
We work in homes and buildings around Crown and Garter pub and the streets around them. The closest station to Hell Corner is Kintbury station, roughly 1.8 miles north. Other landmarks nearby include Hamstead Marshall 3 (2.8 miles north-east). Green spaces nearby include Kintbury Newt Ponds and Inkpen Hill.
What the job involves on each surface
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Make sure the drainage slots are not blocked
- Clean frames with a soft cloth and soapy water
- Keep paint and stain on wooden frames in good order
- Paint up to the joint, not over it
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.