
Expansion Joint Sealing in Kemsing
Expansion joint sealing in Kemsing, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Rain penetration at brick or block movement joints
- Weathered movement joint sealant that no longer flexes
- Chipped joint edges on forklift routes
Expansion joint sealing for Kemsing sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
On site: what to expect
When we get to site, 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 normally taking a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing. For a site in Kemsing, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.
- Photos, joint lengths and drawings come to us, or we visit.
- We compare each joint’s width with the movement and the sealant’s capability, and flag anything that needs an engineer.
- Old sealant and debris are cut out of every joint.
- Any broken arrises or friable edges are flagged before work goes further.
- A sealant suited to the movement and traffic is laid to depth and tooled.
- Areas reopen once cured, and the work carries our 12-month guarantee.
Preparing the site
- Send any specification or drawings in advance
- Agree which areas must stay open
- Clear stock, furniture or equipment away from the joints
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, phone 01277 525 020 or email the details over.
Advice
Expansion joint sealing for commercial buildings in Kemsing
We cover the full range of movement joints: vertical joints in brick and block facades, joints between precast or cladding panels, concrete slab and deck joints, ramps, podiums and internal floors. Every one calls for a sealant picked for its movement, exposure and traffic. We work on car park decks and ramps, brickwork movement joints and podiums and floor movement joints, and the failures we are asked to look at most are expansion joints split through the centre of the bead and debris jammed in movement joints. For commercial sealant work in Kemsing, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Rural business units around smaller places such as Kemsing often have new slabs laid inside older buildings. Saw-cut and construction joints in those floors need the right filler or sealant for the forklifts and trolleys that use them.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Where
- Kemsing (TN15)
- Wider area
- Kent
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Work for main contractors and building owners
We work for building owners and managing agents on everything from one building to a spread of sites around Kemsing. Several sites can go on one quote, so there’s one set of paperwork to deal with.
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
When something else is needed
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Leaks coming from the membrane rather than the joint seal
- Concrete or masonry repairs along the arrises
- Movement on a scale no sealant is meant to absorb
If you are not sure, just phone 01277 525 020 or send photos by email and we will give you a straight answer.
Where we work in Kemsing
- Precast concrete panel joints
- Cladding panel joints
- Podiums and floor movement joints
- Car park decks and ramps
- Brickwork movement joints
- Blockwork control joints
Doing it in-house
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 usually costs more in the end than doing them right.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
Joints that move: notes for Kemsing
Kemsing lies roughly 19 miles out from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital, and their floor joints take forklift and pallet-truck traffic all day. At least three named trading, business or retail sites lie within about 3 miles of Kemsing. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic.
Parks like Goya Business Park Sevenoaks (1.3 miles south-west of Kemsing) combine paved areas, car parks and building elevations, each with joints that move. Schools like Kemsing Primary School often have long brick elevations with movement joints that age quietly. Sites like Sevenoaks Hospital, 1.6 miles to the south-west of Kemsing, carry ambulances, deliveries and visitors’ cars over their road and deck joints.
Kemsing is about 2 miles north-east of Sevenoaks, in Kent. Businesses, contractors and managing agents in Kemsing use us for work on movement joints. 931 places across Kent fall within our area, including Kemsing. We also cover London, some 19 miles away.
Anyone looking for expansion joint sealing in TN15 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on High Street, Copperfields Walk and Childsbridge Lane. Close to Kemsing, our area also takes 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). Bigger towns within reach include 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).
Near you in Kemsing
Locally, jobs take us to sites close to St Michael's Preparatory School, Knole Academy and Kemsing Down, among other places. For rail, the closest station is Otford station, roughly 1 mile north-west of the centre. A little further out are Kemsing Castle Bank (0.5 miles east) and Otford Heritage Centre (1 mile west). The countryside around Kemsing includes Dryhill Nature Reserve.
Also in Kemsing
Aftercare for building managers
Regular inspection catches problems early. In particular:
- Keep stones and debris out of open joint lines
- Keep racking legs and heavy point loads off floor joints
- Reopen bays and walkways only after the stated cure time
- Check joints after long freezing spells
Movement joints belong on the planned maintenance inspection list. Early splits and edges starting to lift show up on a routine check and long before edges start to break. Should you spot a problem, you can ring 01277 525 020 or email drawings and photos and send a picture.
External wall joints that fail let rain into the masonry and cavity. The first sign is often a damp patch indoors by which time the joint has been open for a while. Resealing promptly prevents internal damage.
What affects the price in Kemsing
What shapes the price:
- Removal of failed or old sealant
- How accessible the joints are
- Site requirements such as inductions and permits
- Distance, for remote addresses
There’s no price list, because the scope varies so much from one building to the next. Call for a quote.
What to include in your enquiry
Good information means a firmer quote. When you get in touch, include:
- The asbestos register, for older buildings
- Approximate linear metres or a joint schedule
- Any dates the work must fit around
- Any specification or named product
To get a fixed quote, ring 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.
FAQs: Kemsing
Can you work on a hospital site such as Sevenoaks Hospital?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
Is a smaller place like Kemsing outside your area?
No. Places such as Kemsing are covered as much as the big towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
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 inspection is the best way to catch problems early.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can the building stay open while you work?
Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
Do you seal on top of existing sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.