Kent · England
Sand Mastic in Maidstone
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Maidstone. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Tired mastic found when preparing windows for paint
How we handle sand mastic in Maidstone
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you have wind and rain getting in round a sash window and tired mastic found when preparing windows for paint, we can help, on period & listed homes, timber door frames and brick reveals alike.
A place the size of Maidstone has every kind of window, from older timber frames to uPVC and aluminium in newer homes, plus conservatories, patio doors and rooflights. Each needs the right sealant, and each joint wears out eventually.
Whatever the size of the job, you get the same 12-month guarantee in Maidstone and across Kent.
What the job involves on each surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- Access and height
- Which sealant suits the joint
- Mould in or behind the old joints
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
What to tell us when you ask for a quote:
- Photos by email, if that’s easy
- The problem you’ve noticed
- If someone has resealed it before
- Where the job is, and your postcode
Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job.
Why act early in Maidstone
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In a large rental market like Maidstone, tired sealant leads to tenant complaints about mould, damp and leaks. Sorting it between tenancies is easier than dealing with it mid-let.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
Why book with us
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
Take a look at what affects the cost and what customers say.
Signs you need sand mastic in Maidstone
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint and we normally remove them.
These are the problems we’re asked about most:
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
- Mastic round period door frames that has failed
- Mastic dropping out of the joint
Managing a site like South Borough Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What happens if the job turns out different
- Who turns up on the day
- What the cure time is
- Is the old sealant removed completely?
When something else is needed
In fairness, there are a few things sealant will not fix:
- Cracked or broken glass
- Masonry that needs repairing
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Brick reveals
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Common questions in Maidstone
Do you work for landlords with property near Maidstone West station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Is sand mastic in Maidstone guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
How much does sand mastic cost in Maidstone?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we’re using and why.
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 they decide.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Will you leave 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.
What we do, step by step
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours for a single window, longer for several. Jobs in a place the size of Maidstone range from town-centre flats to offices and family homes. Whichever it is, tell us how to get in, where to park and where the work is.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
Get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
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Sand mastic in Maidstone: local notes
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. Historic houses like Stoneacre (about 2.4 miles south-east) are a reminder that the area around Maidstone has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Maidstone West station, cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around St Philip's Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Maidstone is about 31 miles south-east of London, in Kent. Homes, rented property, offices and hotels in Maidstone can book us for sand mastic. The work is guaranteed for a year. Maidstone is one of 922 towns and villages in Kent we cover for sand mastic. You can also see our page for London, about 31 miles away.
Work in ME15, ME16, ME14 and ME17 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Square Hill Road, Arundel Square and Square Hill or anywhere close by, our applicators can take on the job. With the A20 and A26 close by, Maidstone is easy for our applicators to reach for sand mastic. Neighbouring places we cover for sand mastic include Tovil (1 mile west), Foley Park (1 mile north), Shepway (1 mile south-east), Penenden Heath (1 mile north) and Weavering (1 mile east). We also work in nearby towns such as Sittingbourne (10 miles north-east), Sevenoaks (15 miles west), Royal Tunbridge Wells (14 miles south-west), Gravesend (13 miles north-west), Tonbridge (12 miles south-west) and Northfleet (14 miles north-west). Maidstone is one of the larger places we cover in Kent.
Landmarks near Maidstone
Locally, jobs take us to homes and businesses close to St Augustine Academy, River Len LNR and Maidstone Grammar School, among other places. The closest station to Maidstone is Maidstone West station, roughly 0.6 miles north-west. Other landmarks nearby include Maidstone Carriage Museum (under half a mile north-west) and Oakwood Hospital (1.8 miles west). Green spaces nearby include Burham Down and Boxley Hills.