Medway · England
Tunbridge Hill Sand Mastic
Window and door surrounds in Tunbridge Hill need attention? We remove the old material, prepare the joints and seal them properly.
- Mastic that needs renewing before redecorating
- Draughts and rain around sash boxes
- Old cement repairs round a window that have failed
Should I try it myself first?
What a professional job adds is preparation and the right 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.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Sand mastic in Tunbridge Hill, done properly
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you’re dealing with tired mastic found when preparing windows for paint and gaps where the frame meets the masonry, we can put it right.
Around Tunbridge Hill, 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.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.

- Location
- Tunbridge Hill (ME3)
- Wider area
- Medway
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a single window, longer for several, depending on the amount of work. Somewhere as small as Tunbridge Hill, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Get a quote
For sand mastic in Tunbridge Hill, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
When to call us in Tunbridge Hill
Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.
Common reasons people contact us are:
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
- Cracked mastic round a front door frame
For site and facilities teams at buildings such as The Hundred of Hoo Academy, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- How much experience the applicator has
- The length of the guarantee
- What preparation is included
- Whether they seal over old material or remove it
Why deal with it now?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. In a small place like Tunbridge Hill, 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 and we will talk you through it.
Why choose Mr Mastic in Tunbridge Hill
- We never seal over old sealant
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
- We’re fully insured
Read what affects the cost and customer reviews.
Sand mastic in Tunbridge Hill: local notes
Tunbridge Hill 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. 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Gillingham (Kent) station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Tunbridge Hill is about 5 miles north of Gillingham, in Medway. For sand mastic in and around Tunbridge Hill, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Medway from our Crawley base, Tunbridge Hill included. We cover 68 towns and villages across Medway. Our Chelmsford page covers work nearby (21 miles or so).
All of ME3 is within our area for sand mastic. Other places close to Tunbridge Hill include Kingsnorth (1 mile south), Fenn Street (1 mile north-west), Sharnal Street (1 mile north-west), St Mary Hoo (2 miles north) and High Halstow (2 miles north-west). Within a short drive, we also cover Gillingham (5 miles south), Chatham (6 miles south-west), Rochester (5 miles south-west), Rainham (5 miles south), Strood (6 miles south-west) and Luton (5 miles south-west).
Local landmarks in Tunbridge Hill
For rail, the closest station is Gillingham (Kent) station, about 3.9 miles south-west. Well-known places in the area include Medway Maritime Hospital (4.5 miles south-west) and Upnor Castle (3.6 miles south-west). For a walk, there’s Bishop Saltings.
Landlord and commercial work in Tunbridge Hill
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Also near Tunbridge Hill
Other services in Tunbridge Hill
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Leave the new mastic unpainted
- Plan mastic work ahead of painting
- Ask a joiner to look at soft timber first
- Avoid heavy scraping on the mastic joint
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
When it isn’t the sealant
We will not take on work that won’t last, so these are the limits:
- Timber that has rotted
- Sash cords, weights and draught-proofing of the sashes
- Putty and glazing repairs
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Brick reveals
- Sash and case windows
- Timber door frames
- Tenement windows
- Period & listed homes
- Stone surrounds
Common questions in Tunbridge Hill
Does living near the coast affect sand mastic in Tunbridge Hill?
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.
Will you come out to Tunbridge Hill?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you work for landlords and businesses?
Yes, regularly. Several properties can be quoted together, and between tenancies is a good time for the work.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
Can you match the sealant colour?
We help you choose a colour that suits. The product needed can limit the range.
