West Berkshire · England
Sand mastic for sash & case windows in Hell Corner, West Berkshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Hell Corner, backed by a one-year guarantee. Ask us for a quote.
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
- Modern sealant on a period surround
For landlords and businesses
If you manage several properties in or around Hell Corner, several properties can go on one quote. Send us the addresses and the work at each.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Sand mastic in Hell Corner
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. If you are dealing with mastic that needs renewing before redecorating and cement or filler used on old window joints that has cracked, we can put it right.
Homes in small places like Hell Corner often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Big or small, it’s backed by our one-year guarantee in Hell Corner and across West Berkshire.
- Place
- Hell Corner (RG17)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Avoid heavy scraping on the mastic joint
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
- Do not paint over the new mastic
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Hell Corner questions
Will you come out to Hell Corner?
Yes. Hell Corner is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do sand mastic in Hell Corner?
Yes. We work across London and the South East, and Hell Corner is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Places near Hell Corner
Other services in Hell Corner
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes a few hours per window, depending on the condition of the joints in most cases. For a village or hamlet like Hell Corner, 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.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
What affects the quote in Hell Corner
The quote reflects the job in front of us. We look at:
- The number and length of the joints
- The type of sealant required
- How many areas need sealing
- When we can work, for business premises
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Asking for a quote
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- Where the property is
- What’s wrong with the joints now
- Whether it’s a home or a business
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
How the job changes by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Period and listed homes
A traditional finish suits a period property.
What happens if it’s left?
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. Around Hell Corner, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
Why us?
- Domestic, commercial and hotel work
- Over 20 years’ experience
- Full insurance on every job
- Old sealant always removed completely
Take a look at what affects the cost and customer reviews.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Sashes that rattle, stick or will not open
- Crumbling stone or brickwork round the window
- Cracked or broken glass
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Period & listed homes
- Sash and case windows
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
Sand mastic in Hell Corner: local notes
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. 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Kintbury station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as Inkpen Primary School, its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of St Laurence, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Hell Corner is about 6 miles west of Newbury, in West Berkshire. For sand mastic in and around Hell Corner, please ring 0345 464 0079 or email us for a quick quote. We cover West Berkshire from our Crawley base, Hell Corner included. Across West Berkshire, we cover 155 places, Hell Corner among them. Our Reading page covers work nearby (21 miles or so).
Work in RG17 is quoted and booked the same way as anywhere else. Other places close to Hell Corner include 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). Within a short drive, we also cover 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).
What’s near Hell Corner
Typical jobs here are in homes near Crown and Garter pub. The nearest railway station is Kintbury station, roughly 1.8 miles north. Nearby you’ll also find Hamstead Marshall 3 (2.8 miles north-east). For a walk, there’s Kintbury Newt Ponds and Inkpen Hill.