Kent · England
Willington Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Willington. Fully insured, ARBOMaster approved and guaranteed for a year.
- Tired mastic found when preparing windows for paint
- Modern sealant on a period surround
- Open joints round the window box
How we handle sand mastic in Willington
Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice and we can swap the silicone for it. Common call-outs are for a silicone bead on a sash window that spoils the look and gaps round a timber door in stone or brick, across timber door frames, stone surrounds and tenement windows.
In smaller places like Willington, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or email us.

- Place
- Willington (ME15, ME17)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When to call us in Willington
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
People normally contact us after spotting something like this:
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
Managing a site like Senacre Wood Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- How the joint is cleaned and prepared
- Whether all the old sealant comes out first
- What happens if they find a problem under the old sealant
- Whether the sealant suits the joint
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
We also work for property managers and facilities teams in Willington and across Kent. Several sites can go on one quote, and we’re fully insured for the work.
What sand mastic looks like in Willington
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Stoneacre (about 0.9 miles east) nearby, there’s older building stock in the area around Willington as well as newer homes. Where a home is older, 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 St Martin's Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Rented homes near Bearsted station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Willington is about 2 miles south-east of Maidstone, in Kent. Anywhere in ME15, we can carry out sand mastic at your property. Willington is one of 922 towns and villages in Kent where we work for sand mastic. For nearby work, see our London page, about 33 miles away.
We cover every part of ME15 and ME17 for sand mastic and the streets around it. If you need sand mastic at a property on Essex Road, Oxford Road and Sutton Road or anywhere close by, we can help. You’ll find Willington on the A274, which makes it straightforward to reach. Neighbouring places we cover for sand mastic include Shepway (1 mile west), Otham (1 mile south-east), Park Wood (1 mile south), Bearsted (2 miles north-east) and Weavering (2 miles north). We also work in nearby towns such as Ashford (15 miles south-east), Sittingbourne (10 miles north-east), Royal Tunbridge Wells (15 miles south-west), Gravesend (15 miles north-west), Tonbridge (13 miles west) and Faversham (15 miles east).
Around Willington
Typical jobs here are in homes near New Line Learning Academy, Senacre Technology College and Mote Park, among other places. For rail, the closest station is Bearsted station, about 1.9 miles north-east of the centre. A little further out are KIMS hospital (2.4 miles north) and The Mall Maidstone (2 miles north-west). The countryside around Willington includes Detling Hill.
Towns and villages near Willington
Also in Willington
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Look over the window mastic once a year
- Leave the new mastic unpainted
- Avoid patching sand mastic with silicone
- Plan mastic work ahead of painting
Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Leave it or put it right?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. Homes in smaller places like Willington can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- More than 20 years in sealant work
- Fully insured
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and customer reviews.
How it works
At the end, we look at the finished work together. The work normally takes a few hours for a single window, longer for several, depending on how much there is to do. Parking around Willington is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
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 add pictures by email if you can.
Advice
Questions from Willington
Do you cover smaller places like Willington?
Yes, Willington 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 Willington in your area for sand mastic?
Yes, Willington is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
How long does the job take?
It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access.
Can I choose the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
What affects the cost of sand mastic
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- When we can work, for business premises
- The number of rooms or windows
- The product the joint needs
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- The problem you’ve noticed
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
