Mastic Sealing in Folkestone
Mastic sealing for building owners, managing agents and housing associations in Folkestone. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Patchy repairs in mismatched sealant
- Estate-wide sealant that is simply worn out
- Draught complaints from residents or tenants
Mastic sealing for Folkestone sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our mastic sealing in Folkestone
For blocks and buildings in Folkestone and across Kent, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. If you have movement joints with sealant missing and occupiers reporting cold air round windows, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Folkestone from the first photos to the final walk-round, whether it’s one building or several.
In Folkestone, as in most towns, a block may have frames from several eras, which leaves perimeter mastic of very different ages. Looking at the whole building first shows what needs doing now and what can wait.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Folkestone (CT20, CT19, CT21)
- Wider area
- Kent
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How a job runs
On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking a day or two for a single block, longer for an estate programme. Most work in Folkestone is one building at a time: a school, a unit, an office or a block. We start with your photographs, drawings or a site visit, then send a fixed quote.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Tell us your opening times and when work is allowed
- Have the specification and drawings to hand
- Send asbestos survey details if the building is pre-2000
Request a quote
To get a fixed quote, ring 01277 525 020 or send details through our quote form with the site address and an outline of the work. You can also send details through our quote form.
Related advice
Do you need mastic sealing in Folkestone?
We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and splits as the building moves.
It’s worth sending us details if you spot any of the following:
- Open joints in brickwork or panels
- Patchy repairs in mismatched sealant
- Damaged joints in communal entrances and corridors
- Repeated reactive repairs to the same buildings
Site managers at schools like Stella Maris Catholic Primary School can fit frame mastic into the summer works.
What to look for in a quote
- Can the work be phased to keep areas open?
- Proof of insurance
- The named product and why it was chosen
- Whether primer will be used where the manufacturer specifies it
Questions about Folkestone
Will you work in a care home in Folkestone without moving residents out?
Yes, with the manager deciding the order and timing of rooms. Tell us about any infection-control or safeguarding requirements and we will work to them.
Will you take on a block within reach of Folkestone Central station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.
Can weather delay the job?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
How do you choose the sealant?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
Do you supply RAMS and insurance details?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.
Doing it in-house
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
How the job changes by surface
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
External movement joints
The joint width has to suit the movement and the sealant’s capability, often around 2:1 width to depth, as the manufacturer advises.
What affects the price in Folkestone
What shapes the price:
- Whether the work must be split into stages
- Location, for remote and island sites
- Removal of failed or old sealant
- The size and state of each joint
The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Sending details for a quote
To price the job accurately, we need to understand the site. Send us:
- How the joints are reached, and at what height
- What the building is and how it’s used
- Photos of the joints, close up and from further back
- Where the site is, with the postcode
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or send details through our quote form if you’d rather talk the job through.
Looking after buildings in and around Folkestone
Folkestone sits close to the coast, within about 1 mile. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints. Folkestone sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.
For agents with blocks near Folkestone Central station, less than half a mile to the south-east of Folkestone, a block-wide mastic programme deals with frames, balconies and entrances in one go. If you manage student housing near a university such as University Centre Folkestone, which lies east of Folkestone, the summer turnaround is the time for mastic.
Folkestone is in Kent. We cover Folkestone and the rest of Kent, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 931 places across Kent fall within our area, Folkestone among them. There’s a separate page for Brighton, roughly 59 miles from Folkestone.
Business premises anywhere in CT20, CT19 and CT21 are within our area. If your site is on Christ Church Road, Middelburg Square and Station Road or close by, send details and we’ll quote for mastic joints. You’ll find Folkestone on or near the A259 and A260, so getting applicators and materials to site is simple. Nearby places we also cover include Cheriton (1 mile west), Sandgate (1 mile south-west), Hawkinge (2 miles north), Arpinge (2 miles north-west) and Seabrook (2 miles west) for mastic joints. Further afield, our area takes in Ashford (14 miles west), Canterbury (14 miles north), Dover (7 miles north-east), Deal (13 miles north-east), Hythe (4 miles west) and Tower Hamlets (7 miles north-east). Folkestone ranks among the main centres of Kent, with offices, shops, schools and other public and commercial buildings.
Near you in Folkestone
Around Folkestone, our work takes us to commercial buildings near The Park Inn Hotel, Lower Leas Coastal Park and The Harvey Grammar School, among other places. Folkestone has its own railway station: Folkestone Central station. Well-known places in the area include Folkestone Museum (0.7 miles south-east) and Folkestone Castle (1 mile north). For a walk, there’s Sugar Loaf Hill.
Commercial clients in Folkestone
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, so there’s one set of paperwork to deal with.