Kent · England
Sand mastic for sash & case windows in Waldershare, Kent
Sand mastic across Waldershare and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
- Mastic worn away on windows facing the weather
What we cannot put right
Before booking, it’s worth knowing the limits:
- Broken panes
- Crumbling stone or brickwork round the window
- Decisions on consent for listed homes
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows
- Timber door frames
- Sash and case windows
About our sand mastic in Waldershare
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic is the traditional choice, and we can replace one with the other. If you are dealing with weathered mastic on the most exposed windows and crumbling sand mastic round a window, we can put it right, on sash and case windows, tenement windows and timber door frames alike.
Around Waldershare, 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.
Each job carries a 12-month guarantee.
- Location
- Waldershare (CT15)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Waldershare, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
How to get a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Why deal with it now?
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. In a small place like Waldershare, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
Why us?
- We leave the area clean and tidy
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
Read our cost guide or our reviews.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Check with your local planning authority if your home is listed
- Ask us before painting near the mastic
- Keep modern sealant off the mastic
- Get any rot dealt with first
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Landlord and commercial work in Waldershare
For anyone letting property in or around Waldershare, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
FAQs for Waldershare
Can you help a landlord with a rental near Shepherds Well station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like Waldershare?
Yes. Waldershare is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long will you be here?
That depends on how much there is to do, but most jobs take anything from a few hours to a full day, depending on how many windows. We will tell you when we quote.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we’ll agree it with you first.
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.
What the job involves on each surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
Stone surrounds
The stone is treated with care while raking out the old mastic.
When to call us in Waldershare
Rain on the window surround works into any crack and loosens it further. Exposed elevations usually fail first.
Most people get in touch after spotting something like this:
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
- Old cement repairs round a window that have failed
For landlords with property near Shepherds Well station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- Who turns up on the day
- Which colour the sealant will be
- Are they insured?
- Is the old sealant removed completely?
Sand mastic in Waldershare: local notes
With historic houses such as Goodnestone Park (about 4 miles north) nearby, there’s older building stock in the area around Waldershare as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Pancras include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Schools such as Eythorne Elvington Community Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Waldershare is about 4 miles north-west of Dover, in Kent. For sand mastic in and around Waldershare, please ring 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Kent. Waldershare is one of 922 towns and villages in Kent where we work for sand mastic. You can also see our page for Chelmsford, roughly 50 miles from Waldershare.
We work across the CT15 postcode area for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Eythorne (1 mile north-east), Coldred (1 mile south-west), Sibertswold (1 mile west), Halfway Street (2 miles west) and Lydden (2 miles south-west). We also work in nearby towns such as Canterbury (10 miles north-west), Margate (14 miles north), Dover (4 miles south-east), Folkestone (8 miles south-west), Ramsgate (12 miles north-east) and Broadstairs (14 miles north-east).
Near you in Waldershare
In Waldershare, that means homes and buildings near The White Horse pub, among other places. The nearest railway station is Shepherds Well station, about 1.3 miles west of the centre. A little further out are Buckland Hospital (4.2 miles south) and Dover Transport Museum (3 miles south-east).