Kent · England
Sand Mastic in St Mary in the Marsh
Sand mastic across St Mary in the Marsh and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Mastic round period door frames that has failed
- Open joints round the window box
- Patchy fillers round a sash window
When something else is needed
It helps to know what we cannot do:
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Tenement windows
- Period & listed homes
- Timber door frames
- Sash and case windows
- Stone surrounds
- Brick reveals
Sand mastic in St Mary in the Marsh
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on period & listed homes, tenement windows and stone surrounds, and people most often call us about draughty sash windows at the surround and cracked mastic round a front door frame.
Mastic can only go onto a dry, clean joint, so window work in St Mary in the Marsh is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All our work is covered by our one-year guarantee, wherever you are in Kent.
- Location
- St Mary in the Marsh (TN29)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to St Mary in the Marsh
What else we do in St Mary in the Marsh
Landlord and commercial work in St Mary in the Marsh
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
For anyone letting property in or around St Mary in the Marsh, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. For a village or hamlet like St Mary in the Marsh, 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.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
Getting a quote
If you are in St Mary in the Marsh and need sand mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Read more
Do you need sand mastic in St Mary in the Marsh?
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Look out for these signs:
- Gaps where the frame meets the masonry
- Draughty sash windows at the surround
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
Homes close to Church of St Mary the Virgin include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Whether you can choose the colour
- Who does the work, and how experienced they are
- Are they insured?
- How the joint is cleaned and prepared
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
St Mary in the Marsh: your questions answered
Does living near the coast affect sand mastic in St Mary in the Marsh?
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. It’s worth checking the walls that face the sea first.
Do you cover St Mary in the Marsh for sand mastic?
Yes. We work across London and the South East, and St Mary in the Marsh is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in St Mary in the Marsh.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Can I do it myself?
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.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
St Mary in the Marsh homes and the weather
St Mary in the Marsh is within about 2 miles of 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like The Marsh Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
St Mary in the Marsh is about 7 miles south-west of Hythe, in Kent. Anywhere in TN29, we cover sand mastic for homes and businesses. St Mary in the Marsh is one of 922 places in Kent where we work. We also work in Brighton, around 48 miles away.
Every address in TN29 is within our area for sand mastic. Whether your property is on Wades Close, Rectory Road and Pickneybush Lane or anywhere close by, our applicators can take on the job. Other places close to St Mary in the Marsh include St Mary's Bay (1 mile east), Newchurch (2 miles north), Burmarsh (3 miles north-east), Postling Green (5 miles north) and Bonnington (5 miles north). Within a short drive, we also cover Ashford (9 miles north), Folkestone (11 miles north-east), Hythe (7 miles north-east), Hawkinge (12 miles north-east), Tenterden (12 miles west) and Cheriton (10 miles north-east).
Landmarks near St Mary in the Marsh
In St Mary in the Marsh, that means homes and buildings near Romney Warren Country Park and The Star Inn, among other places. Other landmarks nearby include Romney 'castle' (2.5 miles south-west) and Brenzett Aeronautical Museum (3.5 miles west).
Why it’s worth doing now in St Mary in the Marsh
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. In a small place like St Mary in the Marsh, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll go through it with you.
What you get with us
- 12-month guarantee on every job
- Quality sealants from Arbo and Everbuild
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
Aftercare tips
To keep the joints looking good and working properly:
- Look over the window mastic once a year
- Check with your local planning authority if your home is listed
- Sort the mastic before the decorators arrive
- Leave the new mastic unpainted
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.