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

Expansion and movement joint sealing in St Ann's Green, Kent

Expansion and movement joint sealing in walls, decks and floors in St Ann's Green and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.

  • Debris jammed in movement joints
  • Car park joints leaking onto vehicles below
  • Hardened, cracked sealant on exposed facades
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Expansion joint sealing near St Ann's Green

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

Different surfaces, different methods

Internal floor movement joints

Wheeled traffic chips floor joint edges that aren’t supported. We match the product to the traffic and the movement, and tell you if edges need repairing first.

Cladding panel joints

Metal and composite panels shift considerably as temperatures change. A sealant with the right movement class is chosen in a colour confirmed for that product.

Expansion joint sealing in St Ann's Green, done properly

We have been sealing expansion and movement joints for over 20 years. Our applicators are CSCS-carded, we are CHAS accredited and a Constructionline member, and we carry five million pounds of public liability insurance. Each job is backed by a 12-month guarantee on the workmanship. We work on cladding panel joints, podiums and floor movement joints and blockwork control joints, and what we are called in for most is chipped joint edges on forklift routes and rain penetration at brick or block movement joints. Searching for sealant specialists in St Ann's Green? We have been sealing commercial buildings since 2005.

Jobs around smaller places like St Ann's Green are planned so the whole job is done in one visit, with the right materials on hand. Note joint widths and the traffic that uses them, and we will take it from there.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
St Ann's Green (TN12)
Region
Kent
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Common questions from St Ann's Green clients

Would you work within a site like Oakwood Hospital?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

Do we have to stop operations in St Ann's Green while the joints are sealed?

Rarely. Work is phased around your operations. Tell us which hours and entrances we can use and we’ll plan from there.

How long will the new sealant last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

How do I request a quote?

You can use the quote form on this site; alternatively, phone 01277 525 020 or send details through our quote form. Photos, drawings or a joint schedule help us quote quickly.

Can you seal car park deck joints?

Yes. These joints take wheels, salt and water, so product choice matters and broken edges are flagged before sealing.

What happens if it rains on the day?

Weather matters for any external joint: rain, frost and condensation all stop sealant bonding. Internal floor joints are far less affected.

Can you work while the building is occupied?

Yes, with some planning. Tell us your site hours and access windows and we will plan around them.

Traffic, movement and joints around St Ann's Green

St Ann's Green sits in one of the drier corners of the country, the South East. Outside joints in yards and car parks still have to be dry before sealing, and gritting in cold spells finds its way into open joints. Central London is about 34 miles from St Ann's Green. The roads out of London are lined with trade parks and distribution sheds; their floors carry heavy traffic every shift.

For an estate such as Oakwood Hospital, 5.9 miles to the north of St Ann's Green, the joints in ramps, decks and long building elevations all need attention over time.

St Ann's Green is about 6 miles south of Maidstone, in Kent. We send applicators to St Ann's Green for movement joints. We work across 931 places in Kent. There’s a separate page for London, about 34 miles away.

We take on movement joints across the TN12 postcode area, whatever the building. Just outside St Ann's Green, we also work in Milebush (1 mile west), Underling Green (1 mile north), Wanshurst Green (1 mile south), Cross-at-Hand (1 mile east) and Marden Thorn (2 miles south). A short drive away, we cover Maidstone (6 miles north), Sittingbourne (14 miles north-east), Royal Tunbridge Wells (11 miles west), Tonbridge (10 miles west), Kings Hill (8 miles north-west) and Foley Park (7 miles north).

What’s near St Ann's Green

The nearest railway station is Marden station, about 1.2 miles south-west of the centre. Other landmarks nearby include Oakwood Hospital (5.9 miles north) and Sutton Valence Castle (4 miles north-east).

Map of St Ann's Green © OpenStreetMap contributors

On site: what to expect

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself usually 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. Smaller jobs around St Ann's Green can be grouped with others nearby. A fixed quote is given before anything starts.

  1. Photos, joint lengths and drawings come to us, or we visit.
  2. We compare each joint’s width with the movement and the sealant’s capability, and flag anything that needs an engineer.
  3. Every joint is cleared of the failed seal and any grit packed into it.
  4. Any broken arrises or friable edges are flagged before work goes further.
  5. The right sealant goes in at the right depth, bonded to the two sides only.
  6. Each area is handed back after its cure time, under our 12-month guarantee.

Getting the site ready

  • Have the specification and drawings to hand
  • Arrange parking or a loading space
  • Tell us which areas need to stay in use

Quotes

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Ask for a quote

Advice

Do you need expansion joint sealing in St Ann's Green?

Three-sided adhesion is a common cause of early failure. Sealant fixed to the base and sides can’t flex, so it tears.

Any of the following is a good reason to get the joints checked over:

  • Torn sealant in brick or block movement joints
  • Expansion joints filled with dirt and stones
  • Rain penetration at brick or block movement joints
  • Sealant pulling off the joint face

In and around St Ann's Green, the right filler or sealant for each joint depends on the traffic and the movement it takes.

Comparing quotes

  • Can the work be phased to keep areas open?
  • Is the sealant right for the movement and the substrate?
  • How joint depth will be controlled
  • What the guarantee covers, and for how long

Our contractor checklist

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • Movement on a scale no sealant is meant to absorb
  • Leaks coming from the membrane rather than the joint seal
  • A joint that has to be widened or re-detailed before it can work

If in doubt, ring 01277 525 020 or email drawings and photos and we’ll say what we think before you book.

Joints and surfaces we work on

  • Brickwork movement joints
  • Cladding panel joints
  • Car park decks and ramps
  • Blockwork control joints
  • Precast concrete panel joints
  • Podiums and floor movement joints

For managing agents and facilities managers

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in St Ann's Green can sit alongside others in a wider programme across Kent.

Keeping the joints sound

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Include every elevation and deck joint in periodic inspections
  • Avoid parking heavy plant or pallets on joint lines
  • Report split or peeling joint sealant early
  • Note which joints were done, when, and with what

Our workmanship on movement joints carries a 12-month guarantee. Record which product went into which joints in the building file.

On a multi-storey car park, a failed joint typically shows up as a leak onto the deck underneath. That water often carries de-icing salts with it, which is bad news for the concrete and the people parking below. Resealing early limits the damage.

Accreditations

Trusted. Accredited. Insured.