Kent · England
Sand mastic for sash & case windows in Lydd, Kent
Window and door surrounds in Lydd need attention? We cut out the old, prepare the joints and apply the right sealant.
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
- Old sand mastic that has cracked, crumbled or fallen out
Common questions in Lydd
Is Lydd in your area for sand mastic?
Yes, Lydd is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Is sand mastic in a coastal place like Lydd any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are usually the first to need attention.
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 will explain why.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Can I add another job to the visit?
Yes. Just list everything you need.
Do you work for letting agents?
Yes. We work in homes, commercial premises and hotels.
Sand mastic in Lydd
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. We are often asked to deal with window mastic to renew ahead of painting and a silicone bead on a sash window that spoils the look, on tenement windows, sash and case windows and timber door frames.
Many houses in smaller places like Lydd have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
Whatever the size of the job, you get the same one-year guarantee in Lydd and across Kent.
- Place
- Lydd (TN29)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to a full day, depending on how many windows in most cases. A visit to Lydd is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Move anything stored near the joints
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
Related advice
Common problems we fix in Lydd
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
Most people get in touch after spotting one of these:
- Wind and rain getting in round a sash window
- Mastic dropping out of the joint
- Weathered mastic on the most exposed windows
- Window mastic to renew ahead of painting
Homes close to All Saints Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- How hidden problems are handled
- Which colour the sealant will be
- Is VAT in the price?
- How much experience the applicator has
What the job involves on each surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Masonry that needs repairing
- Cracked or broken glass
- Decisions on consent for listed homes
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Surfaces we seal
- Period & listed homes
- Sash and case windows
- Timber door frames
- Brick reveals
- Stone surrounds
- Tenement windows
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Sand mastic in Lydd: local notes
Lydd is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Lydd Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Lydd is about 11 miles south-west of Hythe, in Kent. If you need sand mastic in Lydd, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Kent, Lydd included. Lydd is one of 922 places in Kent we cover for sand mastic. We also work in Brighton, about 46 miles from Lydd.
Every address in TN29 is within our area for sand mastic. If you need sand mastic at a property on Church Road, Station Road and High Street or a nearby road, we can help. Lydd is on the B2075, which makes it straightforward to reach. Neighbouring places we cover for sand mastic include Lydd-on-Sea (2 miles east), Greatstone-on-Sea (3 miles north-east), Old Romney (3 miles north), New Romney (3 miles north-east) and Littlestone-on-Sea (3 miles north-east). We also work in nearby towns such as Ashford (13 miles north), Folkestone (15 miles north-east), Hythe (11 miles north-east), Tenterden (12 miles north-west), Cheriton (14 miles north-east) and Kennington (15 miles north).
Around Lydd
We work in homes and buildings around The Dolphin Hotel, among other places. Other landmarks nearby include Lydd Town Museum (within half a mile south-west) and Romney 'castle' (2.9 miles north). Green spaces nearby include Dungeness National and Burnthouse Pen.
Landlord and commercial work in Lydd
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Leave the new mastic unpainted
- Make sure water runs off the sill
- Renew mastic before redecorating the windows
- Inspect the joints round the windows every year or so
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.