Kent · England
Sheldwich Sand Mastic
We cover Sheldwich for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
About our sand mastic in Sheldwich
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditional guidance is not to paint over it and we’ll advise if you are redecorating. If you are dealing with weathered mastic on the most exposed windows and modern sealant on a period surround, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Sheldwich is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Place
- Sheldwich (ME13)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Your questions about sand mastic in Sheldwich
Do you cover Sheldwich for sand mastic?
Yes. We work across London and the South East, and Sheldwich is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Do you work for landlords with property near Selling station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
Do you guarantee sand mastic work?
Our 12-month guarantee covers every job, sand mastic included.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What should I tell you?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
Sheldwich 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. Historic houses like Belmont House and Gardens (about 1.6 miles west) are a reminder that the area around Sheldwich has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as Church of St James, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Sheldwich Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Selling station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Sheldwich is about 3 miles south of Faversham, in Kent. Jobs in Sheldwich get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Sheldwich is one of 922 towns and villages in Kent where we work for sand mastic. There’s also a page for Chelmsford, roughly 36 miles from Sheldwich.
Jobs for sand mastic in ME13 works the same way as everywhere else we cover. We cover properties on Ashford Road and Lees Court Road and the roads around them. Nearby, we also carry out sand mastic in Sheldwich Lees (1 mile south-east), North Street (1 mile north), Badlesmere (1 mile south), Throwley (1 mile south-west) and Throwley Forstal (2 miles south-west). Larger places within reach include Maidstone (15 miles west), Ashford (9 miles south), Canterbury (9 miles east), Sittingbourne (8 miles north-west), Whitstable (8 miles north-east) and Faversham (3 miles north).
Near you in Sheldwich
In Sheldwich, that means homes and buildings near The Abbey School. Sheldwich’s nearest station is Selling station, about 2.6 miles east. A little further out are Newnham Castle (3.6 miles west).
What we do, step by step
The work is kept neat and contained to the area we are working on. Expect the work to take a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. Somewhere as small as Sheldwich, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Clear the area around the work
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
If you’re in Sheldwich and need sand mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
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Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Looking after it afterwards
Aftercare is simple:
- Avoid patching sand mastic with silicone
- Take care around the mastic when scraping paint
- Ask the planning authority about consent for listed or conservation-area homes
- Ask a joiner to look at soft timber first
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
- Whether work needs listed building consent
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Timber door frames
- Sash and case windows
- Stone surrounds
- Brick reveals
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- The amount of work
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- Any mould that needs treating
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 price for the lot.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it has been sealed before
- Roughly how big the job is
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Why act early in Sheldwich
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a small place like Sheldwich, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What you get with us
- We never seal over old sealant
- One-year guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- ARBOMaster approved applicator
See our cost guide or what customers say.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
We also work for property managers and facilities teams in Sheldwich and across Kent. We can quote a run of properties together, and we’re fully insured.