Medway · England
Sand mastic for sash & case windows in Mockbeggar, Medway
Problem with your window and door surrounds in Mockbeggar? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
Surface by surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Sand mastic in Mockbeggar
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have wind and rain getting in round a sash window and silicone on a period window that looks wrong, we can put it right.
Somewhere as small as Mockbeggar, 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.
All of our work is guaranteed for twelve months.
- Where
- Mockbeggar (ME3)
- Region
- Medway
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. For a village or hamlet like Mockbeggar, 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 look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.
Advice
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What happens if it’s left?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. Older cottages and farmhouses around Mockbeggar can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why book with us
- Tidy, careful work
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
Take a look at what affects the cost and what customers say.
Mockbeggar homes and the weather
Mockbeggar 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. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Higham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Cliffe Woods Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Mockbeggar is about 2 miles north of Rochester, in Medway. If you need sand mastic in Mockbeggar, please ring 0345 464 0079 or send us an email for a quick quote. We cover Medway from our Crawley base. 68 places in Medway are on our list. Our Chelmsford page covers work nearby (22 miles or so).
Work in ME3 is quoted and booked the same way as anywhere else. Local streets include Bunters Hill Road and Town Road, all of which we cover. If you are just outside Mockbeggar, we cover Cliffe Woods (1 mile north-east), Lower Higham (1 mile west), Church Street (2 miles north-west), Higham (2 miles west) and Gadshill (2 miles south-west). Larger places within reach include Gillingham (5 miles south-east), Chatham (5 miles south), Rainham (7 miles south-east), Luton (4 miles south-east), Park Wood (7 miles south-east) and Lordswood (6 miles south).
Near you in Mockbeggar
In Mockbeggar, that means homes and buildings near Temple School, Strood Academy and Broomhill Park and the streets around them. For rail, the closest station is Higham station, roughly 1.2 miles west of the centre. Well-known places in the area include French Hospital (2.4 miles south) and Pentagon Shopping Centre (3 miles south-east). The countryside around Mockbeggar includes Rede Common and Gad's Hill.
Landlord and commercial work in Mockbeggar
We also work for property managers and facilities teams in Mockbeggar and across Medway. We can quote a run of properties together.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
Do you need sand mastic in Mockbeggar?
Rain on the window surround works into any crack and pushes it out. Exposed elevations normally fail first.
The problems people normally mention when they call include:
- Tired mastic found when preparing windows for paint
- Mastic dropping out of the joint
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
Historic houses such as Temple Manor, about 2.3 miles south, show how far back building around Mockbeggar goes.
Comparing quotes
- What the quote includes, VAT included or not
- What preparation is included
- How the colour is chosen
- What happens if they find a problem under the old sealant
Nearby places to Mockbeggar
Other services in Mockbeggar
Mockbeggar: your questions answered
Does living near the coast affect sand mastic in Mockbeggar?
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.
Is Mockbeggar within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What guarantee comes with the work?
All our work has a 12-month guarantee, and we are fully insured.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
How much does sand mastic cost in Mockbeggar?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Keep modern sealant off the mastic
- Plan mastic work ahead of painting
- Make sure water runs off the sill
- Ask a joiner to look at soft timber first
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.