Medway · England
Sand mastic for sash & case windows in Wallend, Medway
Sand mastic for Wallend, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- Patchy fillers round a sash window
Signs you need sand mastic in Wallend
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The most common problems we see are:
- Gaps between timber frames and stone or brick
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
Rented homes near Sheerness-On-Sea station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Before booking anyone
- Whether the sealant suits the joint
- What insurance they hold
- Who turns up on the day
- What the quote includes, VAT included or not
About our sand mastic in Wallend
Sand mastic suits most period window surrounds. Newer frames usually get a flexible sealant instead and we’ll explain which is best for yours. We’re often asked to deal with a silicone bead on a sash window that spoils the look and weathered mastic on the most exposed windows, across stone surrounds, period & listed homes and tenement windows.
Somewhere as small as Wallend, 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.
Your job is guaranteed for a year, as with all our work.

- Place
- Wallend (ME3)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Wallend
Is sand mastic in a coastal place like Wallend any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
I let a flat near Sheerness-On-Sea station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
How much does sand mastic cost in Wallend?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or drop us an email and let us know what needs doing and where.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
What is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
Why act early in Wallend
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. In a small place like Wallend, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- Trusted Arbo and Everbuild sealants
- 180+ five-star Google reviews
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
Take a look at how sealant jobs are priced or customer reviews.
Frames and glazing around Wallend
Wallend 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 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as St James Church of England Primary Academy, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Church of St James, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Wallend is about 5 miles north-west of Minster, in Medway. Wallend gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Wallend is one of 68 places in Medway we cover. Chelmsford is on our list too, around 22 miles away.
We work across the ME3 postcode area for sand mastic and the streets around it. With the B2001 close by, Wallend is simple for us to get to. Nearby, we also carry out sand mastic in Grain (1 mile east), Blue Town (2 miles east), Sheerness (3 miles east), Queenborough (3 miles south-east) and Rushenden (3 miles south-east). We also work in nearby towns such as Gillingham (8 miles south-west), Chatham (10 miles south-west), Rochester (10 miles south-west), Rainham (8 miles south-west), Strood (10 miles south-west) and Luton (9 miles south-west).
Landmarks near Wallend
Locally, jobs take us to homes and businesses close to The Hogarth Inn and the streets around them. The nearest railway station is Sheerness-On-Sea station, roughly 2.6 miles east. Other landmarks nearby include Bluetown Heritage Centre (2.3 miles east). Not far away are Bishop Saltings.
Honest limits
To be straight with you, some problems need a different trade:
- Masonry that needs repairing
- Timber that has rotted
- Cracked or broken glass
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
What we seal
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows
- Brick reveals
- Stone surrounds
Work for landlords, hotels and businesses
Landlords and agents in Wallend can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Places near Wallend
What else we do in Wallend
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
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.
What affects the quote in Wallend
For a quick quote, just ask. What matters most is:
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- Whether there’s mould to deal with
- The product the joint needs
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- The address or postcode of the job
- Any previous sealing or DIY work
- Whether it’s a home or a business
- Roughly how big the job is
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
The process
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Wallend, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
Getting a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details.
