Kent · England
Lydd-on-Sea Sand Mastic
Sand mastic across Lydd-on-Sea and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
Sand mastic for homes and businesses in Lydd-on-Sea
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic is the traditional choice, and we can replace one with the other. If you’re 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, stone surrounds and tenement windows alike.
Somewhere as small as Lydd-on-Sea, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Lydd-on-Sea (TN29, TN28)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How it works
You do not need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes a few hours for a single window, longer for several in most cases. Somewhere like Lydd-on-Sea needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
- Clear the area around the work
Getting a quote
For sand mastic in Lydd-on-Sea, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Leave it or put it right?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Where a wall is exposed, as many are in small places like Lydd-on-Sea, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Lydd-on-Sea
- Trusted Arbo and Everbuild sealants
- 180+ five-star Google reviews
- Every job guaranteed for a year
- 20+ years of sealant experience
See how sealant jobs are priced and our reviews.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Look over the window mastic once a year
- Ask a joiner to look at soft timber first
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Nearby places to Lydd-on-Sea
Also in Lydd-on-Sea
Quotes for sand mastic in Lydd-on-Sea
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- Mould in or behind the old joints
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- Where the property is
- Pictures of the joints, sent by email
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or send us an email.
Frames and glazing around Lydd-on-Sea
Lydd-on-Sea is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Greatstone Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near St Peter's, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Lydd-on-Sea is about 10 miles south-west of Hythe, in Kent. We carry out sand mastic for householders, landlords and businesses in Lydd-on-Sea. Our area takes in 922 places across Kent. You can also see our page for Brighton, about 48 miles away.
Our applicators cover all of the TN29 and TN28 postcode area for sand mastic. Streets in the area include Taylor Road, Lade Fort Crescent and Williamson Road, all of which we cover. Close by, we work in Greatstone-on-Sea (2 miles north), Dungeness (2 miles south), Littlestone-on-Sea (2 miles north), Lydd (2 miles west) and New Romney (3 miles north). We also work in nearby towns such as Ashford (14 miles north), Folkestone (13 miles north-east), Hythe (10 miles north-east), Hawkinge (14 miles north-east), Tenterden (15 miles north-west) and Cheriton (12 miles north-east).
Landmarks near Lydd-on-Sea
Well-known places in the area include Romney 'castle' (4.2 miles north-west) and Lydd Town Museum (2.5 miles west). Open spaces near Lydd-on-Sea include Dungeness National and Burnthouse Pen.
What we can’t put right
In fairness, some problems need a different trade:
- Cracked or broken glass
- Sashes that need overhauling
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Brick reveals
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Tenement windows
- Timber door frames
Lydd-on-Sea questions
Can you do sand mastic in Lydd-on-Sea?
Yes, Lydd-on-Sea is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Does the coastal weather in Lydd-on-Sea affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
How long will you be here?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we will tell you how long to expect.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Can landlords and businesses book you?
Yes, regularly. Several properties can go on one quote.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. Timing depends on the weather and the joint.