Kent · England
Lympne Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Lympne and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
- Old cement repairs round a window that have failed
When to call us in Lympne
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber and we normally remove them.
Signs it’s time to call us include:
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
- Cracked mastic round a front door frame
If you let a flat or house near Westenhanger station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What to look for in a quote
- How long the guarantee is
- Whether they seal over old material or remove it
- What the cure time is
- Who turns up on the day
About our sand mastic in Lympne
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. Common call-outs are for cracked mastic round a front door frame and mastic dropping out of the joint, across stone surrounds, period & listed homes and timber door frames.
In a village or hamlet like Lympne, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Your job is guaranteed for a year, as with all our work.
- Location
- Lympne (CT21)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Take care around the mastic when scraping paint
- Ask a joiner to look at soft timber first
- Leave the new mastic unpainted
- Check with your local planning authority if your home is listed
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
What sand mastic looks like in Lympne
Lympne is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Westenhanger Castle (about 1.3 miles north) nearby, there’s older building stock in the area around Lympne as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to Church of St Stephen include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. Schools such as Lympne Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Lympne is about 2 miles west of Hythe, in Kent. Anywhere in CT21, our applicators can take on sand mastic. Our area takes in 922 places across Kent, large and small. There’s also a page for Chelmsford, roughly 51 miles from Lympne.
Jobs for sand mastic in CT21 works the same way as everywhere else we cover. If you need sand mastic at a property on The Street, Harman Avenue and Tourney Close or a nearby road, we can help. Neighbouring places we cover for sand mastic include Berwick (1 mile north-east), West Hythe (1 mile south-east), Newingreen (1 mile north-east), Westenhanger (1 mile north-east) and Pedlinge (1 mile east). Within a short drive, we also cover Ashford (8 miles north-west), Canterbury (14 miles north), Dover (13 miles east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles north-east).
Landmarks near Lympne
Typical jobs here are in homes near The Royal Oak Public House, Sandling Park and Brockhill Park Performing Arts College. The nearest railway station is Westenhanger station, about 1.4 miles north-east of the centre. Nearby you will also find Lympne Castle (under half a mile south) and Hythe Museum (2.6 miles east). For a walk, there’s Tolsford Hill.
How the job changes by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is normally favoured.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Nearby places to Lympne
Also in Lympne
Lympne questions
Will you come out to Lympne?
Yes, Lympne is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is sand mastic in a coastal place like Lympne any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Where are you based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is it OK to seal over old sealant?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you offer different sealant colours?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before we start.
What we do, step by step
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. For a village or hamlet like Lympne, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Clear the area around the work
Getting a quote
If you are in Lympne and need sand mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, 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. We can quote a run of properties together, and we are fully insured for the work.
Why it’s worth doing now in Lympne
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. In a small place like Lympne, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What you get with us
- We leave the area clean and tidy
- Old sealant always removed completely
- ARBOMaster approved applicator
- Arbo and Everbuild products
Take a look at how sealant jobs are priced and what customers say.
How we quote for sand mastic
You’ll get a clear quote before work begins. It’s based on:
- How many rooms, windows or areas are involved
- How much there is to do
- Working hours on commercial sites
- How easy the joints are to reach
Leaving a failed joint usually 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.
What we need to know
To make quoting easier, let us know:
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.