Kent · England
Sand Mastic in Lynsore Bottom
Problem with your window and door surrounds in Lynsore Bottom? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
How we handle sand mastic in Lynsore Bottom
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditional guidance is not to paint over it and we’ll advise if you’re redecorating. Typical jobs include gaps where the frame meets the masonry and a silicone bead on a sash window that spoils the look, across stone surrounds, sash and case windows and brick reveals.
Around Lynsore Bottom, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job is covered by a one-year guarantee, wherever you are in Kent.

- Place
- Lynsore Bottom (CT4)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need sand mastic in Lynsore Bottom?
Shallow joints are a common cause. Mastic that is too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Signs it’s time to call us include:
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Homes close to Church of St Peter and St Paul include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before booking
- Which sealant they’ll use, and why
- Whether VAT is included
- Whether all the old sealant comes out first
- Which colour the sealant will be
Why deal with it now?
New sash windows are a major, costly change and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Lynsore Bottom can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.
Why Lynsore Bottom clients choose us
- Over 20 years’ experience
- Neat joints and a tidy finish
- One-year guarantee on every job
- An ARBOMaster approved applicator
Take a look at our cost guide or our reviews.
Your questions about sand mastic in Lynsore Bottom
Can you do sand mastic in Lynsore Bottom?
Yes, Lynsore Bottom is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you cover smaller places like Lynsore Bottom?
Yes. Lynsore Bottom is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long does sand mastic take to go off?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
What we do, step by step
On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. Most jobs take a few hours for a single window, longer for several. In a small place like Lynsore Bottom, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Mention any tricky access
- Move anything stored near the joints
- Mention if the joints have been sealed before
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too in Lynsore Bottom and across Kent. We can quote a run of properties together.
Places near Lynsore Bottom
Other services in Lynsore Bottom
Windows and doors in Lynsore Bottom
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Bekesbourne station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Lynsore Bottom is about 5 miles south of Canterbury, in Kent. Homes, rented property, offices and hotels in Lynsore Bottom is covered for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. Lynsore Bottom is one of 922 towns and villages in Kent we cover. There’s also a page for Chelmsford, about 45 miles away.
Work in CT4 works the same way as everywhere else we cover. We also cover Upper Hardres (1 mile north-west), Pett Bottom (1 mile north), Lower Hardres (2 miles north), Petham (3 miles north-west) and Street End (3 miles north). Larger places within reach include Ashford (11 miles south-west), Canterbury (5 miles north), Dover (10 miles south-east), Folkestone (9 miles south), Whitstable (10 miles north) and Deal (13 miles east).
What’s near Lynsore Bottom
Typical jobs here are in homes near Jumping Downs and the streets around them. The nearest railway station is Bekesbourne station, roughly 4.2 miles north-east of the centre. Well-known places in the area include Kent and Canterbury Hospital (4.1 miles north) and Canterbury Castle (4.9 miles north).
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Ask the planning authority about consent for listed or conservation-area homes
- Take care around the mastic when scraping paint
- Ask a joiner to look at soft timber first
- Don’t paint over the new mastic
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
What affects the quote in Lynsore Bottom
For a quick quote, just ask. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- How many areas need sealing
- Any working-time requirements on site
Doing several joints on one visit is usually more efficient than separate visits. We’ll give you a clear price for the lot.
Asking for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- If someone has resealed it before
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
We quote each job on its own. Simply phone 0345 464 0079 or email us and describe the job, and photos are welcome.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
