Kent · England
Dymchurch Sand Mastic
Sand mastic across Dymchurch and nearby, with old sealant always removed completely.
- Modern sealant on a period surround
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
How we handle sand mastic in Dymchurch
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted, so ask us before you decorate. Common call-outs are for old cement repairs round a window that have failed and cracked mastic round a front door frame, on stone surrounds, sash and case windows and tenement windows.
Many houses in smaller places like Dymchurch have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.
- Where
- Dymchurch (TN29, CT21)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need sand mastic in Dymchurch?
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
People generally contact us after spotting one of these:
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
Letting a property close to Westenhanger station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- How much experience the applicator has
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- What preparation is included
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What we do, step by step
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a single window, longer for several. A visit to Dymchurch 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.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Related advice
What sealant work cannot fix
We will not take on work that will not last, so these are the limits:
- Sash cords, weights and draught-proofing of the sashes
- Masonry that needs repairing
- Cracked or broken glass
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Tenement windows
- Period & listed homes
- Stone surrounds
- Timber door frames
- Sash and case windows
- Brick reveals
Frames and glazing around Dymchurch
Dymchurch is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Westenhanger Castle (about 4.5 miles north) are a reminder that the area around Dymchurch has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Homes close to Church of St Peter and St Paul include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Dymchurch Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Dymchurch is about 4 miles south-west of Hythe, in Kent. From the centre of Dymchurch to the outskirts, sand mastic is available for homes and businesses alike. Dymchurch is one of 922 towns and villages in Kent we cover for sand mastic. There’s also a page for Brighton, about 51 miles away.
Here we cover the TN29 and CT21 postcode area for sand mastic. Sand mastic is available to properties on High Street, Station Road and The Oval. Other places close to Dymchurch include Donkey Street (1 mile north), West Hythe (3 miles north-east), Palmarsh (3 miles north-east), Lympne (3 miles north) and Berwick (4 miles north). Within a short drive, we also cover Ashford (10 miles north-west), Dover (15 miles north-east), Folkestone (8 miles north-east), Hythe (4 miles north-east), Tower Hamlets (15 miles north-east) and Hawkinge (9 miles north-east).
Local landmarks in Dymchurch
We work in homes and buildings around The Ship Inn. The nearest railway station is Westenhanger station, about 4.6 miles north of the centre. Nearby you’ll also find Lympne Castle (2.9 miles north).
Dymchurch questions
Does living near the coast affect sand mastic in Dymchurch?
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.
Is Dymchurch within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Can landlords and businesses book you?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Should I check with the council before work on a listed or conservation-area home?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Landlords, agents and businesses in Dymchurch
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Nearby places to Dymchurch
More services for Dymchurch
Leave it or put it right?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. In a smaller place like Dymchurch, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why Dymchurch clients choose us
- Tidy, careful work
- ARBOMaster approved applicator
- Domestic, commercial and hotel work
- Every job guaranteed for a year
See what affects the cost and customer reviews.
Different surfaces, different methods
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Stone surrounds
Old stone surrounds are often uneven, so the gap isn’t the same all the way round. We shape it by hand to follow the stone.