East Sussex · England
Robertsbridge Sand Mastic
Sand mastic for Robertsbridge and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
What affects the cost of sand mastic
Jobs vary more than people expect. The main factors:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- The type of sealant required
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 we need extra access for height. We take all of that into account in your quote.
Helping us quote
There’s no need for technical detail. Just tell us:
- Photos by email, if that’s easy
- The problem you’ve noticed
- The type of property
- The rough size of the job
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before work begins.
Sand mastic for homes and businesses in Robertsbridge
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. We work on period & listed homes, brick reveals and sash and case windows, and common reasons people get in touch are weathered mastic on the most exposed windows and gaps round a timber door in stone or brick.
Around Robertsbridge, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Robertsbridge (TN32)
- Region
- East Sussex
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
Before booking, it’s worth knowing the limits too:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Sash cords, weights and draught-proofing of the sashes
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Timber door frames
- Tenement windows
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Brick reveals
Landlords, agents and businesses in Robertsbridge
Housing providers, facilities teams and property managers book us too in Robertsbridge and across East Sussex. Several sites can go on one quote.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Robertsbridge: your questions answered
Is Robertsbridge within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Robertsbridge station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Should I try it myself first?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Older cottages and farmhouses around Robertsbridge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and send you a clear quote before work begins.
Why choose Mr Mastic in Robertsbridge
- 180+ five-star Google reviews
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- We leave the area clean and tidy
See how sealant jobs are priced and our reviews.
Towns and villages near Robertsbridge
Also in Robertsbridge
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per window, depending on the condition of the joints. Somewhere like Robertsbridge needs a little journey planning: 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 agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Clear the area around the work
- Keep children and pets away from the work area
- Let us know about parking restrictions
Ask for 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 add pictures by email if you can.
Related advice
Robertsbridge homes and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Durhamford Manor (about 3.8 miles south-east) nearby, there’s older building stock in the area around Robertsbridge as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Letting a property close to Robertsbridge station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Salehurst Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Robertsbridge United Reformed Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Robertsbridge is about 9 miles north-west of Hastings, in East Sussex. Anywhere in TN32, our applicators can take on sand mastic. Our area takes in 289 places across East Sussex, from the larger towns to small villages. For nearby work, see our Brighton page.
Jobs for sand mastic in TN32 is quoted and booked the same way as anywhere else. That includes homes and businesses on Station Road, High Street and Glenleigh Walk. We also cover the places around Robertsbridge: Northbridge Street (1 mile north-east), Salehurst (1 mile north-east), John's Cross (2 miles south-east), Mountfield (2 miles south) and Oxley's Green (3 miles south-west). We also work in nearby towns such as Hastings (9 miles south-east), Bexhill-on-Sea (9 miles south), Hailsham (12 miles south-west), Crowborough (14 miles west), St Leonards (10 miles south) and Polegate (15 miles south-west).
Landmarks near Robertsbridge
In Robertsbridge, that means homes and buildings near The Ostrich Hotel and Robertsbridge Community College. There’s a railway station in Robertsbridge itself: Robertsbridge station. Well-known places in the area include Ticehurst House Hospital (5.4 miles north-west). For a walk, there’s Senlac Hill.
How the job changes by surface
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.