Facade Sealing contractors in Kemsing
Facade sealing in Kemsing, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Failed sealant on precast panel joints
- Damp patches beside frames after rain
- Weathered joints at frame-to-structure perimeters
Facade sealing across Kemsing
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
General trades versus a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
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, which is what makes a joint last.
Facade sealing in Kemsing, done properly
Sealant around windows, doors and cladding panels stops rain reaching the wall behind. Once a perimeter seal fails, water tracks in around frames and panels. We cut out failed facade joints and reseal them with a facade-grade sealant suited to the movement. If you have leaks at window and door perimeters and sealant pulling away from frames or panels, we can help. Searching for sealant specialists in Kemsing? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
In a smaller place such as Kemsing, construction tends to mean small housing schemes, conversions and extensions to community buildings. Small schemes still need window perimeters, facade joints and internal sealant done to the specification.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Location
- Kemsing (TN15)
- Region
- Kent
- Guarantee
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Quoting for work in Kemsing
Each job is priced on its own details. The things that drive the figure:
- Location, for remote and island sites
- Access and working height
- How much existing material needs removing
- Working within restricted access windows
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Sending details for a quote
For an accurate fixed quote, we need to understand the site. Send us:
- The postcode of the building
- A wide shot and a close-up of the area
- Any dates the work must fit around
- Access details, including height
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or email drawings and photos.
Do you need facade sealing in Kemsing?
Product choice matters: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Most external joints call for a neutral-cure, facade-grade sealant.
What tends to prompt an enquiry:
- Water coming in around window frames
- Patch repairs that keep failing
- Air leaks through failed facade joints
- Failed seals around shopfront and entrance frames
Units on estates such as Goya Business Park Sevenoaks (1.3 miles south-west of Kemsing) tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
Questions to ask before you book
- The terms of the workmanship guarantee
- How the joint faces will be prepared and primed
- What level of public liability insurance do they hold?
- Their approach to joint depth and backing
Our process
We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. What matters most for a job in Kemsing is a clear list of what needs doing, so send photographs of each area. A fixed quote follows.
- We start with photos, drawings or a visit to see the joints and agree access.
- We confirm the joint type, movement and the specified product.
- The existing bead comes out in full.
- Primer goes on where the product data asks for it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
What we need from you
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
- Tell staff and tenants when we will be in
Ask for a quote
For a fixed quote, phone 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.
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Common questions from Kemsing clients
Does your area include sites such as Goya Business Park Sevenoaks, near Kemsing?
Yes, sites like Goya Business Park Sevenoaks are within our area, along with the rest of Kemsing. Photos and a short description are enough for a first look.
Can you take on a job at a hospital such as Sevenoaks Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
How is access to upper-level joints handled?
We agree access with the client at the start. Tell us about access: existing scaffold, what you’re arranging and any site restrictions.
Does weather matter for sealant work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Can you quote from photographs?
That depends on the size and complexity of the job. Simple work can often be priced from photographs, and bigger or more complex jobs usually get a visit.
Should we check old sealant for asbestos?
In older non-domestic buildings, old sealant can contain asbestos. Check the asbestos register or survey before it is disturbed. We don’t remove asbestos-containing materials.
Who decides which product is used?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
More services for Kemsing
Keeping the joints sound
For the best life from the joints:
- Share access with other external trades
- Keep the sealant details on the building file
- Don’t wait for a second leak before calling
- Check that rainwater leaves the facade the way it was designed to
Keep gutters, sills and drainage paths clear. Sealant copes better when water runs off the facade as designed instead of soaking the joints.
Don’t wait for a full elevation to fail. Small repairs stop small leaks becoming large ones inside the building.
Commercial clients in Kemsing
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Kemsing can sit alongside others in a wider programme.
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Contractors’ notes for Kemsing
Kemsing sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager. Kemsing is about 19 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, which keeps mastic packages in demand.
Historic houses such as Knole House (to the south of Kemsing) are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products. Projects at schools like Kemsing Primary School work to term dates, so mastic is programmed tightly.
Kemsing is about 2 miles north-east of Sevenoaks, in Kent. Businesses, contractors and managing agents in Kemsing can call on us for facade joints. Kemsing is one of 931 places we cover in Kent for facade joints. For work in that direction, see our London page.
We take on facade joints across the TN15 postcode area. Among the streets we cover are High Street, Copperfields Walk and Childsbridge Lane, and sites on any of them can send details for a fixed quote. Just outside Kemsing, we also work in Cotman's Ash (1 mile north-east), Heaverham (2 miles east), Woodlands (2 miles north-east), Romney Street (2 miles north) and Knatts Valley (2 miles north-east). Further afield, our area takes in Maidstone (14 miles east), Dartford (9 miles north), Royal Tunbridge Wells (12 miles south), Gravesend (11 miles north-east), Tonbridge (8 miles south) and Northfleet (10 miles north-east).
What’s near Kemsing
We work on buildings around St Michael's Preparatory School, Knole Academy and Kemsing Down and the streets around them. Kemsing’s nearest station is Otford station, roughly 1 mile north-west of the centre. Other landmarks nearby include Kemsing Castle Bank (0.5 miles east) and Otford Heritage Centre (1 mile west). The countryside around Kemsing includes Dryhill Nature Reserve.