The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Expansion and movement joint sealing in Lenham, Kent

Commercial sealant work in Lenham for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.

  • Sealant pulling off the joint face
  • Rain penetration at brick or block movement joints
  • New sealant over old, now failing
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Expansion joint sealing near Lenham

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our expansion joint sealing in Lenham

Buildings and slabs are never completely still: temperature, moisture, shrinkage and loading all make materials grow and shrink. Movement joints are where that movement is absorbed. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors for buildings in Lenham. We work on brickwork movement joints, precast concrete panel joints and car park decks and ramps, and what we’re called in for most is spalled or broken joint edges in floors and decks and sealant pulling off the joint face. A single leaking joint is often how a building in Lenham first comes to us: we look at the rest while we are there and tell you what we find.

Rural business units around smaller places such as Lenham 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.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.

Where
Lenham (ME17)
Wider area
Kent
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Aftercare for building managers

Problems stay small when the joints are checked regularly. Specifically:

  • Inspect exposed joints once the cold weather has passed
  • Keep racking legs and heavy point loads off floor joints
  • Treat a small split as a warning, not a cosmetic issue
  • Brief car park operatives to protect joint lines during winter clearance

On car parks, winter clearance can damage deck joint sealant. Raising blades over joints where possible protects the seal.

An open joint fills with grit, and a joint full of grit can’t close. The edges then take the pressure and start to spall, turning a sealant job into a repair job. Keeping the seal sound avoids all of that.

Why act early in Lenham

Closing a car park for a reseal is rarely an option. Phased work by bay or zone lets the rest stay in use, compared with a full closure. We agree phasing with you before work starts. A failed joint lets water into a building whatever its size. Catching it early means a reseal rather than repairs.

A quote for movement joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

Why appoint us

  • Public liability insurance in place
  • RAL and finish matching where the product range allows
  • Workmanship guaranteed for 12 months
  • Colour agreed before work starts

See what affects the cost and how we’re accredited.

What the job involves on each surface

Podium joints

Podium joints often sit within a waterproofing system. We reseal the joint where sealant is the specified fix, and tell you if the problem looks like the waterproofing below.

Concrete and precast panel joints

Concrete edges can be weak or carry release agents that stop adhesion. We prepare the faces thoroughly and prime where the maker calls for it, so the new seal holds.

How the quote is worked out

There’s no standard rate for sealant work, since sites vary so much. What we look at:

  • The site’s rules and procedures
  • Which sealant the job calls for
  • Access and working height
  • Quantities, in metres or numbers

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we’ll price your job on its own details.

What to include in your enquiry

However big the job, the same details help:

  • Any specification or named product
  • Anything awkward about access or site hours
  • Where the site is, with the postcode
  • Drawings or a marked-up plan, if available

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.

From enquiry to sign-off

Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a job in Lenham, the main thing is a clear picture of the work. A fixed quote follows.

  1. We look at the joints, their width and how they’ve failed.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  3. We strip out the old seal and prepare the faces.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
  6. We check every joint before sign-off, and the work carries our 12-month guarantee.

What we need from you

  • Make sure the joints can be reached
  • Tell us your opening times and when work is allowed
  • Tell us which areas need to stay in use

Quotes

Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Get a quick quote

Advice

Questions we’re asked in Lenham

Is Lenham too far out for you?

Not at all. Lenham is within our area. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Do you cover business parks and estates near Lenham, such as Roebuck Business Park?

Yes. Estates, retail parks and business parks around Lenham, Roebuck Business Park among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.

What about RAMS and site documents?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.

How much does the work cost?

Every job gets its own fixed quote. For yours, speak to us on 01277 525 020 or send photos by email with a description of the work.

Can you handle several sites?

Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Can you work while the building is occupied?

Normally, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

Do you use silicone or polyurethane in movement joints?

The specification comes first, then the joint’s movement and exposure. The quote states the sealant and its movement class, so you know what’s going in.

When to bring in a specialist

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.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Slabs, ramps and loading bays in Lenham

Lenham is about 39 miles from central London. The South East has large numbers of industrial estates and warehouses along the motorway corridors. Lenham sits in one of the drier corners of the country, the South East. Even so, yard and car park joints are only sealed when they’re dry and clean, and gritting in cold spells finds its way into open joints.

Campuses like Canterbury Christ Church University (to the north-west of Lenham) mix old and new buildings, with movement joints wherever they meet. For buildings at a park such as Roebuck Business Park, 1.7 miles to the west of Lenham, brick and panel movement joints are easy to forget until one leaks. Schools like Lenham Primary School often have long brick elevations with movement joints that age quietly.

Lenham is about 7 miles south of Sittingbourne, in Kent. We cover Lenham and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Lenham is one of 931 places we cover in Kent for movement joints. We also cover London, around 39 miles from Lenham.

We take on movement joints across the ME17 postcode area, whatever the building. Streets here include High Street, Mitchell Close and Hatch Road. If your building is just outside Lenham, we cover Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). Bigger towns within reach include Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).

What’s near Lenham

Locally, jobs take us to sites close to Kiln Wood, The Red Lion pub and The Lenham School, among other places. Lenham has its own railway station: Lenham station. Other landmarks nearby include Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).

Map of Lenham © OpenStreetMap contributors
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