Medway · England
Sand Mastic in Allhallows
Sand mastic across Allhallows and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Draughts and rain around sash boxes
- Old cement repairs round a window that have failed
How we quote for sand mastic
The price is agreed before any work begins. It takes into account:
- Any mould that needs treating
- The size of the job
- The product the joint needs
- Whether old sealant or filler has to be cut out
Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- How we’d reach the joints
- The type of property
- A few photos by email, if you can
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or email us.
Sand mastic in Allhallows, done properly
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on sash and case windows, stone surrounds and timber door frames, and the jobs we see most are open joints round the window box and modern sealant on a period surround.
Around Allhallows, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months.
- Where
- Allhallows (ME3)
- Wider area
- Medway
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Allhallows homes and the weather
Allhallows is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Allhallows Primary Academy? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Chalkwell station, any sash windows need sound mastic to keep draughts and rain out. In the older streets around Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Allhallows is about 5 miles south-east of Canvey Island, in Medway. Allhallows gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Allhallows is one of 68 towns and villages in Medway where we work. You can also see our page for Chelmsford, about 20 miles away.
All of ME3 is within our area for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on St Andrew's Walk, Avery Way and St Matthew's Way. If you’re just outside Allhallows, we cover Allhallows-on-Sea (1 mile north-east), Lower Stoke (1 mile south), Middle Stoke (1 mile south), Stoke (2 miles south-west) and St Mary Hoo (2 miles west). Further out, we also cover Gillingham (7 miles south-west), Chatham (9 miles south-west), Rochester (8 miles south-west), Rainham (8 miles south), Strood (9 miles south-west) and Luton (8 miles south-west).
What’s near Allhallows
Typical jobs here are in homes near Rose And Crown Public House and the streets around them. Allhallows’s nearest station is Chalkwell station, about 5 miles north of the centre. Other landmarks nearby include Chartwell Private Hospital (5.5 miles north) and Bay Museum (3.9 miles north-west). The countryside around Allhallows includes Bishop Saltings.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job usually takes anything from a few hours to a full day, depending on how many windows, and we tell you how long to leave it before we go. Somewhere like Allhallows needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Related advice
Different surfaces, different methods
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Ask a joiner to look at soft timber first
- Don’t paint over the new mastic
- Clear gutters so water doesn’t pour onto the windows
- Check with your local planning authority if your home is listed
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
Your questions about sand mastic in Allhallows
Do you cover smaller places like Allhallows?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is sand mastic in a coastal place like Allhallows any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
What’s sand mastic made of?
Sand plus a binder based on linseed oil. It’s applied by hand and shaped to suit the surround.
Can you quote for more than one area?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Are you insured?
Yes. We are fully insured.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Nearby places to Allhallows
Also in Allhallows
DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Landlords, agents and businesses in Allhallows
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. Around Allhallows, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Why choose Mr Mastic in Allhallows
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
- One-year guarantee on every job
See what affects the cost and what customers say.