Kent · England
Tankerton Sand Mastic
Sand mastic across Tankerton and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
- Weathered mastic on the most exposed windows
About our sand mastic in Tankerton
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Typical jobs include failed mastic on an exposed elevation and old cement repairs round a window that have failed, across brick reveals, period & listed homes and stone surrounds.
In smaller places like Tankerton, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Big or small, it’s backed by our one-year guarantee in Tankerton and across Kent.
- Location
- Tankerton (CT5)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Why act early in Tankerton
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a smaller place like Tankerton, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What you get with us
- Any old sealant cut out fully, not covered over
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
See what affects the cost and customer reviews.
Do you need sand mastic in Tankerton?
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
The problems people usually mention when they call include:
- Mastic dropping out of the joint
- Old cement repairs round a window that have failed
- Window mastic to renew ahead of painting
- Cracked mastic round a front door frame
For site and facilities teams at buildings such as St Mary's Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- How the surfaces are prepared before sealing
- How hidden problems are handled
- What the quote includes, VAT included or not
- What guarantee comes with the work
How the visit works
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. For a job in Tankerton, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Clear items away from the joints we’re working on
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
How to get a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.
Read more
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Timber that has rotted
- Whether work needs listed building consent
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
Tankerton questions
Can you help a landlord with a rental near Whitstable station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Does the coastal weather in Tankerton affect outside sealant?
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 do you need from me for a quote?
A short description and the location, plus photos if you have them. If we need more, we will ask.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will tell you what to expect for your job.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Frames and glazing around Tankerton
Tankerton 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. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
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. If you let a flat or house near Whitstable station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Tankerton is about 1 mile north-east of Whitstable, in Kent. Across the CT5 area, we cover sand mastic for homes and businesses. Tankerton is one of 922 places in Kent where we work. We also work in Chelmsford, around 35 miles away.
Here we cover the CT5 postcode area for sand mastic. You’ll find streets such as Gann Road, Clare Road and Athol Road, all of which we cover. Neighbouring places we cover for sand mastic include Swalecliffe (1 mile east), Chestfield (1 mile south-east), Whitstable (1 mile south-west), Radfall (2 miles south-east) and West End (2 miles south-east). We also work in nearby towns such as Canterbury (6 miles south), Margate (15 miles east), Sittingbourne (14 miles west), Faversham (8 miles south-west), Herne Bay (4 miles east) and Minster (11 miles west).
Landmarks near Tankerton
Around Tankerton, our work takes us to homes and buildings near The Whitstable School and Monument Public House and the streets around them. The nearest railway station is Whitstable station, about 0.7 miles south-west of the centre. Nearby you will also find Whitstable and Tankerton Hospital (less than half a mile south-east) and Tankerton Castle (0.5 miles west). Not far away are West Blean and Thornden Woods.
How we quote for sand mastic
We do not publish a price list. The quote depends on:
- Any mould that needs treating
- How easy the joints are to reach
- The number and length of the joints
- The old material and how stubborn it is
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it has been sealed before
- Whether it’s a home or a business
- Where the property is
- The problem you’ve noticed
For a quote, ring 0345 464 0079 or drop 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.
How the job changes by surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.