
Mastic Sealing in Sheerness
Planning work on a mastic joint in Sheerness? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Window mastic that has split and shrunk
- Damaged joints in communal entrances and corridors
- Occupiers reporting cold air round windows
Mastic sealing across Sheerness
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How the quote is worked out
There’s no standard rate for sealant work, because every site is different. What we take into account:
- Whether the work must be split into stages
- Whether old sealant has to be cut out first
- Travel to remote or island sites
- The size and state of each joint
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
What to include in your enquiry
A few photographs plus some basic facts will normally do. It helps to include:
- Clear photographs of the problem areas
- Approximate linear metres or a joint schedule
- The product your specification calls for
- Anything awkward about access or site hours
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call 01277 525 020 or email the details over.
Mastic sealing for commercial buildings in Sheerness
Owners and agents usually inherit a building’s mastic rather than choose it and it slowly wears out: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. Most enquiries involve open joints in brickwork or panels and draught complaints from residents or tenants, on window and door perimeters on blocks, communal kitchens and washrooms and communal entrances and stairwells. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Sheerness is the same: the right product in a properly prepared joint.
Owners with buildings around smaller places like Sheerness often group mastic work so one visit covers several properties. One quote can cover a whole list of addresses.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Where
- Sheerness (ME12)
- Wider area
- Kent
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Building owners, agents and FMs in Sheerness
For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sheerness can form part of a wider programme across Kent.
Surface by surface
Estate-wide resealing programmes
Using the same products throughout keeps the estate consistent and easier to manage.
Tenement and older buildings
Older buildings, including Scotland’s sandstone tenements, have their own joint details. The material either side of the joint shapes the product choice.
What happens if it’s left?
Open external joints let water into walls and around frames. Damp patches, stained plaster and decorating claims can follow and those cost far more to put right. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
The price depends on the quantity of joints, what has to come out first and the access. Call for a fixed quote once you have the details.
Why us?
- Clear, fixed quotes
- A range of standard colours, depending on the product
- Colour agreed before work starts
- 12-month guarantee on workmanship
See our cost guide and our accreditations.
Frames, entrances and external joints in Sheerness
Sheerness lies within about 1 mile of the sea. On buildings near the shore, the side facing the weather typically needs its mastic renewed first, so it’s worth inspecting those sides more often. Rainfall across the South East, Sheerness included, is lower than in many parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Site managers at schools like Rose Street Primary School can fit frame mastic into the summer works. Churches, halls and community buildings such as Parish Church of the Holy Trinity are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. Buildings close to stations like Sheerness-On-Sea station (to the north-west of Sheerness) are often flats over shops, with frame mastic to keep sound.
Sheerness is about 7 miles north of Sittingbourne, in Kent. Commercial clients in Sheerness can call on us for mastic joints. Across Kent, 931 places are covered, including Sheerness. London is covered too, some 37 miles away.
Anyone looking for mastic sealing in ME12 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on High Street, Granville Road and Millennium Way. With the A249 and A250 nearby, Sheerness is easy to get to with materials and equipment. We also cover Blue Town (1 mile north-west), Halfway Houses (1 mile south-east), Queenborough (2 miles south), Rushenden (2 miles south-west) and Grain (2 miles north-west). Bigger towns within reach include Sittingbourne (7 miles south), Whitstable (13 miles south-east), Faversham (10 miles south-east), Davington (10 miles south-east), Foley Park (15 miles south-west) and Preston (10 miles south-east).
Local landmarks in Sheerness
Recent enquiries here include premises near Oasis Academy Isle of Sheppey, Barton's Point Coastal Park and The Crown pub, among other places. There’s a railway station in Sheerness itself: Sheerness-On-Sea station. Well-known places in the area include Rose Street Cottage of Curiosities (less than half a mile north).
Nearby places to Sheerness
More services for Sheerness
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before we move to the next. Several jobs near Sheerness can be grouped on one trip. Mention the building’s opening times and we’ll work within them.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
What we need from you
- Tell us your opening times and when work is allowed
- Share the asbestos register for older buildings
- Let building users know which areas are affected
Request a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or send photos by email.
Related advice
Questions about Sheerness
Is Sheerness too small for you to travel to?
No. Small places get the same service as large ones. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Does the sea air around Sheerness change the choice of sealant?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
What paperwork can you provide?
Our credentials include CHAS, Constructionline and public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
How long does a typical visit take?
That varies with the scale of the job, though a typical visit normally takes a few days for most blocks, with larger programmes scheduled building by building. For bigger or phased jobs, we will set out a timescale with the quote.
How much does the work cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
When it isn’t the sealant
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Water coming in from the roof or rainwater goods
- Asbestos-containing sealant, which we don’t remove
- Broken glass or failed sealed units
If you’re not sure, just call the office on 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.
What we seal
- Balcony and threshold joints
- Communal entrances and stairwells
- External wall and movement joints
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal kitchens and washrooms