Kent · England
Acol Sand Mastic
Specialist sand mastic for Acol: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Mastic that needs renewing before redecorating
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
When to call us in Acol
Water gets into small cracks in the mastic and loosens it further. Exposed elevations normally fail first.
These are the problems we are asked about most:
- Gaps between timber frames and stone or brick
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
- Cracked mastic round a front door frame
If you let a flat or house near Birchington-On-Sea station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Before booking anyone
- Are they insured?
- What the cure time is
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
Sand mastic in Acol, done properly
Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice, and we can replace one with the other. Typical jobs include a silicone bead on a sash window that spoils the look and gaps round a timber door in stone or brick, across stone surrounds, tenement windows and timber door frames.
Mastic can only go onto a dry, clean joint, so window work in Acol is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- Acol (CT7)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Acol
Do you work for landlords with property near Birchington-On-Sea station?
Yes. We work for landlords and letting agents as well as homeowners. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
Will you come out to Acol?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
How long does sand mastic take?
Most jobs take a few hours per window, depending on the condition of the joints, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
What guarantee comes with the work?
You get our one-year guarantee on every job.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Frames and glazing around Acol
Acol is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
Homes close to St Mildreds Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as Birchington Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Acol is about 4 miles south-west of Margate, in Kent. Homes, rented property, offices and hotels in Acol can book us for sand mastic. Every job comes with our one-year guarantee. Our Kent coverage runs to 922 places, Acol among them. You can also see our page for Chelmsford, roughly 44 miles from Acol.
Here we cover the CT7 postcode area for sand mastic. Streets in the area include The Street, Dilnot Lane and Margate Hill. Nearby, we also carry out sand mastic in Mount Pleasant (1 mile south), Birchington (1 mile north), Way (1 mile south-east), Minster (2 miles south) and Westgate-on-Sea (2 miles north-east). We also work in nearby towns such as Canterbury (11 miles south-west), Margate (4 miles north-east), Dover (15 miles south), Ramsgate (4 miles east), Broadstairs (5 miles east) and Whitstable (12 miles west).
Local landmarks in Acol
We work in homes and buildings around King Ethelbert School and Crown & Sceptre pub. For rail, the closest station is Birchington-On-Sea station, about 1.5 miles north. A little further out are Queen Elizabeth the Queen Mother Hospital (3.6 miles north-east) and Powell-Cotton Museum (0.7 miles north). Not far away are Sandwich and Pegwell Bay.
Also in Acol
Why it’s worth doing now in Acol
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. Around Acol, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why us?
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
- Tidy, careful work
Take a look at our cost guide and customer reviews.
Surface by surface
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
What happens on the day
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the job takes a few hours for a single window, longer for several for a typical job. For a village or hamlet like Acol, 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.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Keep pets and children clear of the area while we work
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
Ask for a quote
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Sashes that rattle, stick or will not open
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Brick reveals
- Tenement windows
- Sash and case windows
- Timber door frames
- Period & listed homes
- Stone surrounds
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Don’t paint over the new mastic
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
- Ask a joiner to look at soft timber first
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.