
Mastic Sealing in Broadstairs
Mastic sealing for building owners, managing agents and housing associations throughout Broadstairs and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Movement joints with sealant missing
- Water getting in round frames after rain
- Worn sealant at communal door frames
Mastic sealing in Broadstairs
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Your questions answered
Can you work at a site such as Northdown Industrial Estate, by Broadstairs?
Yes. Estates, retail parks and business parks around Broadstairs, Northdown Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Can you work in a care home near Broadstairs with residents in?
Yes. Care settings are planned area by area, at times agreed with the home. Tell us about any infection-control or safeguarding requirements and we’ll work to them.
How long will the new sealant last?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Can you send RAMS and CSCS details before starting?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
How soon can the area be used again?
We will confirm how long the chosen product needs to cure.
Do you seal on top of existing sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Do you do block-wide mastic programmes?
Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.
About our mastic sealing in Broadstairs
On a residential block, the work happens around people’s lives. Dates, areas and the order of work are agreed with you in advance so you can let residents know what is happening. Communal entrances and stairs stay usable throughout. If you are dealing with leaks at window and door perimeters and cracked, hardened mastic round windows on a block, we can help. A specialist sealant contractor works differently from a general builder: in Broadstairs, that means joint design, primers and backing rod as standard.
For housing associations with stock in a town such as Broadstairs, mastic is easiest to handle as a planned programme. Work can move block by block, with you handling resident notices.
A 12-month guarantee applies to all our work. If an installation problem shows up, ring 01277 525 020 or use the quote form and we will arrange a return visit.
- Where
- Broadstairs (CT10, CT9, CT12)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

Maintenance after handover
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Check the asbestos register before any old mastic is disturbed
- Encourage occupiers to report problems at frames
- Reduce knocks to communal area joints
- Prioritise elevations facing the weather
If a joint we sealed fails within 12 months, tell us and we will look at it. Beyond that, routine checks spot the next round of repairs.
Leaks at window perimeters spoil finishes and can affect frames. Resealing early keeps the job small.
Planned mastic for Broadstairs portfolios
The sea is no more than about 1 mile from Broadstairs. On buildings near the shore, the side facing the weather typically needs its mastic renewed first, and they deserve more regular inspection. Broadstairs sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first.
For a school such as St Joseph's Catholic Primary School, perimeter mastic on windows and doors is a holiday job. Older community buildings, Parish Church of St Peter the Apostle among them, often have frames of mixed ages whose mastic varies. Blocks of flats and mixed-use buildings often cluster around stations such as Broadstairs station (less than half a mile south-east of Broadstairs) and their window and balcony mastic tends to age at the same rate across a building.
Broadstairs is about 16 miles east of Canterbury, in Kent. Looking for mastic sealing in Broadstairs? We can help, as we do across Kent. Our Kent coverage takes in 931 places, from busy centres to rural villages. For work in that direction, see our London page (66 miles or so).
If you need mastic sealing in CT10, CT9 and CT12, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are High Street, Union Square and Church Road, and sites on any of them can send details for a fixed quote. You will find Broadstairs on or near the A254 and A255. Sites close to Broadstairs are covered too, including Upton (1 mile south-west), St Peter's (1 mile north-west), Northwood (1 mile south-west), Kingsgate (2 miles north) and Northdown (2 miles north). Bigger towns within reach include Deal (10 miles south), Herne Bay (13 miles west), Walmer (11 miles south), Whitfield (15 miles south-west), Sandwich (7 miles south-west) and Aylesham (14 miles south-west).
Landmarks near Broadstairs
We work on buildings around The Charles Dickens School, The Charles Dickens School and The Little Albion Inn. Broadstairs has its own railway station: Broadstairs station. Nearby you will also find Queen Elizabeth the Queen Mother Hospital (2 miles north-west) and Westwood Cross (1.5 miles west). Not far away are Sandwich and Pegwell Bay.
Honest limits
Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be one of these:
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Leaks from above rather than through a joint
Not sure which it is? You can speak to us on 01277 525 020 or email us and we’ll tell you honestly before you book.
What we seal
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.
Nearby places to Broadstairs
What else we do in Broadstairs
How the job changes by surface
Tenement and older buildings
Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. If it’s suspected, work stops until it’s tested.
Estate-wide resealing programmes
Priority order can follow condition, complaints or your maintenance plan. You get one fixed quote per building or for the whole estate.
How a job runs
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Most work in Broadstairs is one building at a time: a school, a unit, an office or a block. Your photographs, drawings or a site visit come first, followed by a fixed quote.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
Getting the site ready
- Point out parking and an unloading spot
- Make sure the joints can be reached
- For older buildings, check the asbestos register before work
Quotes
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Related advice
Cost factors for mastic joints
A fixed quote reflects the actual work. It allows for:
- Whether old sealant has to be cut out first
- Site requirements such as inductions and permits
- Any access equipment needed
- Specialist products, such as fire-rated or hygienic sealants
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Before you send an enquiry
There’s no need for a formal survey. A few details are enough to get going:
- Any specification or named product
- Photos of the joints, close up and from further back
- Whether the building will be occupied during the work
- Drawings or a marked-up plan, if available
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call the office on 01277 525 020 or email the details over if you’d rather talk the job through.