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

Expansion Joint Sealing in Stone Street

Need expansion joint sealing in Stone Street? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Water dripping through deck or ramp joints
  • Debris jammed in movement joints
  • Sealant pulling off the joint face
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Expansion joint sealing in Stone Street

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Expansion joint sealing in Stone Street

Brickwork and blockwork walls have vertical movement joints at intervals. Once the seal fails, rain reaches the cavity and the joint can no longer close. The old seal is cut away, backing rod goes in at depth, and a low-modulus masonry sealant is gunned and tooled with primer where the maker calls for it. We work on blockwork control joints, podiums and floor movement joints and precast concrete panel joints, and what we are called in for most is weathered movement joint sealant that no longer flexes and chipped joint edges on forklift routes. A specialist sealant contractor works differently from a general builder: on jobs in Stone Street, preparation and product choice get the time they need.

Smaller community and commercial buildings around Stone Street have their own movement joints in walls and floors. They’re easily forgotten until water gets in or an edge breaks.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Location
Stone Street (TN15)
Wider area
Kent
Cover
12 months on every job
Quote
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Common questions from Stone Street clients

Is a smaller place like Stone Street outside your area?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Do you take on work at healthcare sites like Cygnet Hospital Godden Green?

Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.

Can you send site paperwork?

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.

What causes movement joint sealant to fail?

The way it has failed typically tells us why: a split through the middle points to over-stretching, while peeling from one face points to preparation or primer. Broken edges are a third possibility.

Do you guarantee expansion joint work?

Our workmanship on movement joints carries a 12-month guarantee. The guarantee covers how we sealed, not damage caused afterwards.

What’s the quickest route to a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.

How do you choose the sealant?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. For a building around Stone Street, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. We strip out the old seal and prepare the faces, and we tell you if any edges need repairing first.
  4. Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
  5. After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
  6. We check every joint before sign-off, and the work carries our 12-month guarantee.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Have the specification and drawings to hand
  • Make sure the joints can be reached

Request a quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or phone 01277 525 020 or email us to discuss it first.

Get a price

Related advice

Floors, slabs and movement joints in Stone Street

Stone Street has at least three named business or industrial parks inside a 3-mile radius. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. Stone Street is about 22 miles from central London. Warehousing clusters around the motorways that ring and radiate from London.

Large sites such as Cygnet Hospital Godden Green, 1 mile west of Stone Street, have car parks, service roads and long elevations with movement joints in brick and panels. For a school such as St Lawrence Church of England Primary School, playground and building joints can be done in the holidays. Phasing is what makes joint work possible on busy sites such as Bourne Enterprise Centre (2.9 miles north-east of Stone Street): one bay, aisle or car park row at a time.

Stone Street is about 3 miles east of Sevenoaks, in Kent. We cover commercial sites throughout Stone Street. Our Kent coverage takes in 931 places. For work in that direction, see our London page.

Work on movement joints is covered throughout TN15, for business premises of every kind. We cover commercial and managed buildings on Church Road, Stone Street Road and Pond Lane and the roads nearby. Nearby places we also cover include Bitchet Green (1 mile south-west), Ivy Hatch (1 mile east), Styants Bottom (1 mile north), Godden Green (1 mile west) and Ightham (1 mile north-east). Nearby towns on our patch include Maidstone (12 miles east), Dartford (12 miles north), Sevenoaks (3 miles west), Royal Tunbridge Wells (9 miles south), Gravesend (12 miles north-east) and Tonbridge (5 miles south).

Landmarks near Stone Street

Locally, jobs take us to sites close to Sevenoaks Preparatory School, Ivy Hatch Nature Reserve and The Plough pub and the streets around them. Stone Street’s nearest station is Kemsing station, roughly 1.9 miles north of the centre. Other landmarks nearby include Ightham Court (2.2 miles north-east) and Sevenoaks Hospital (2.8 miles north-west). Green spaces nearby include Dryhill Nature Reserve.

Map of Stone Street © OpenStreetMap contributors

Why act early in Stone Street

Combining joint work with other maintenance reduces set-up costs. Leaking joints need sealing now because damage continues. We can split the scope into urgent and planned. For buildings around smaller places like Stone Street, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

A quote for movement joints depends on how many there are, their condition and the access, plus any specification you are working to. Call for a quote.

Why us?

  • One contact handling all your sites
  • Joints cleaned back to sound surfaces
  • A range of standard colours, depending on the product
  • Fixed quotes based on photographs, drawings or a visit

Take a look at how commercial sealant jobs are priced or our accreditations.

After the work

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Look over external and deck joints after a hard winter
  • Keep product details with the building records for the next reseal
  • Reopen bays and walkways only after the stated cure time
  • Treat a small split as a warning, not a cosmetic issue

Our workmanship on movement joints carries a 12-month guarantee. Keep the handover details, product and date with your O&M records.

Once debris packs a failed joint, the structure has nowhere to expand. The edges then take the pressure and start to spall. Keeping the seal sound avoids all of that.

Different surfaces, different methods

Car park decks and ramps

Failed deck joints often show as leaks on the level below. We strip the old seal, prepare the edges and seal again, and we will tell you if any edges need repairing first.

Brickwork and blockwork joints

Masonry faces are often porous, dusty or crumbly. We clean them back to sound material and prime where the manufacturer specifies, then seal and tool the joint.

What sets the cost

To price the job, we consider:

  • Removal of failed or old sealant
  • Backing rod, priming and other preparation
  • Quantities, in metres or numbers
  • The site’s rules and procedures

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.

Sending details for a quote

It doesn’t need to be a full survey. These details are enough to start:

  • Drawings or a marked-up plan, if available
  • Where the site is, with the postcode
  • Asbestos survey details if the building is older
  • What the building is and how it’s used

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or email a schedule or drawings.

Doing it in-house

Redoing a failed joint typically 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.

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.