East Sussex · England
Sand mastic for sash & case windows in Crowhurst, East Sussex
Sand mastic for Crowhurst and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Crumbling sand mastic round a window
- Old cement repairs round a window that have failed
How we handle sand mastic in Crowhurst
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. Common call-outs are for tired mastic found when preparing windows for paint and draughty sash windows at the surround, on stone surrounds, period & listed homes and brick reveals.
Somewhere as small as Crowhurst, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
All of our work is guaranteed for twelve months, in Crowhurst and everywhere else we cover.

- Place
- Crowhurst (TN33)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When it isn’t the sealant
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Damaged stone surrounds
- Decisions on consent for listed homes
- Putty and glazing repairs
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals
Questions from Crowhurst
Is Crowhurst within the area you cover?
Yes, Crowhurst is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Crowhurst in your area for sand mastic?
Yes, Crowhurst is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in and agree one before work begins.
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.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Places near Crowhurst
More services for Crowhurst
How it works
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Crowhurst, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
Get a quote
For sand mastic in Crowhurst, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
Crowhurst homes and the weather
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. With historic houses such as Durhamford Manor (about 3.8 miles north) nearby, there’s older building stock in the area around Crowhurst as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to The Parish Church of St George include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. For landlords with property near Crowhurst station, any sash windows need sound mastic to keep draughts and rain out. For site and facilities teams at buildings such as Crowhurst CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Crowhurst is about 3 miles north-west of Hastings, in East Sussex. If you need sand mastic in Crowhurst, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover East Sussex from our Crawley base, Crowhurst included. Crowhurst is one of 289 towns and villages in East Sussex where we work. There’s also a page for Brighton, about 28 miles away.
Postcode districts we cover here for sand mastic: TN33. Streets in the area include Station Road, Craig Close and Old Forewood Lane. If you are just outside Crowhurst, we cover Green Street (1 mile south-east), Hollington (2 miles south-east), Baldslow (2 miles east), Silverhill (3 miles south-east) and Bulverhythe (3 miles south). Within a short drive, we also cover Eastbourne (12 miles south-west), Bexhill-on-Sea (3 miles south-west), Hailsham (11 miles west), St Leonards (3 miles south-east), Polegate (12 miles west) and Hastings Old Town (4 miles south-east).
What’s near Crowhurst
In Crowhurst, that means homes and buildings near The Plough Inn and Claverham Community College. Crowhurst has its own railway station: Crowhurst station. Other landmarks nearby include Hastings Castle (4.2 miles south-east) and Bexhill Hospital (2.8 miles south-west). Open spaces near Crowhurst include Church Wood and Robsack Wood and Senlac Hill.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What happens if it’s left?
If you’re redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps, and the new mastic is traditionally left unpainted. In a small place like Crowhurst, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why book with us
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- Tidy, careful work
- 12-month guarantee on every job
Read our cost guide and what customers say.
What affects the quote in Crowhurst
The quote reflects the job in front of us. We take into account:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- The number of rooms or windows
- The product the joint needs
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
There’s no need for technical detail. Just tell us:
- How many joints, rooms or windows are involved
- The type of property
- Any access issues, like height or stairs
- A few photos by email, if you can
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details.
Landlord and commercial work in Crowhurst
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
