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

Expansion and movement joint sealing in Borstal, Medway

Our CSCS-carded applicators take on expansion and movement joint sealing in walls, decks and floors in Borstal. Send photographs or drawings for a fixed quote.

  • Rain penetration at brick or block movement joints
  • Previous reseals laid over old sealant
  • Arrises breaking up along floor joints
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Need expansion joint sealing in Borstal?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Questions we’re asked in Borstal

Do you cover business parks and estates near Borstal, such as Strood Retail Park?

Yes. Estates, retail parks and business parks around Borstal, Strood Retail Park among them, are all within reach. To start, just speak to us on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.

Is Borstal off your patch?

No. Places such as Borstal are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

What guarantee do you give on joint sealing?

The 12-month guarantee applies to the workmanship. If a joint we sealed fails inside the 12 months, let us know.

How long before the joints can be used?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

What timescale should we allow for resealing expansion joints?

It usually takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints. Timings are set out in the quote.

Can you fit around our working hours?

The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.

Expansion joint sealing for commercial buildings in Borstal

The seal is what lets a movement joint do its job. When the sealant splits or lets go, the gap fills with dirt and water. Resealing at the first signs of failure is far cheaper than repairing the material either side. If you have joints packed with grit and debris and sealant peeling off one face of the joint, we can help, on brickwork movement joints, cladding panel joints and car park decks and ramps alike. Searching for sealant specialists in Borstal? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

Around Borstal, most floor and movement joint jobs are single buildings or yards, so we gather photographs and measurements first. Getting widths, depths and traffic details up front means one visit, not two.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Where
Borstal (ME1, ME2)
Region
Medway
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

After the work

Cleaning and maintenance staff play a part too. Share these points with them:

  • Keep product details with the building records for the next reseal
  • Put movement joints on the planned maintenance inspection round
  • Keep traffic off new joints until the cure time is up
  • Clear dirt from joint lines during routine cleaning

Snow ploughs and scrapers catch on joint lines. Raising blades over joints where possible protects the seal.

Rain gets into walls through torn brick and block movement joints. The first sign is often a damp patch indoors. Resealing promptly prevents internal damage.

Slabs, ramps and loading bays in Borstal

Borstal sits in one of the drier corners of the country, the South East. External joints still wait for dry conditions, and winter de-icing salt on car parks and ramps works into any open joint. Borstal is about 26 miles from central London. Warehousing clusters around the motorways that ring and radiate from London.

A healthcare site such as Medway Maritime Hospital, 2.4 miles to the east of Borstal, depends on car parks, ramps and service yards whose joints take traffic all day. A campus such as University for the Creative Arts - Rochester (1.3 miles east of Borstal) has long runs of movement joint in its buildings, decks and paving.

Borstal is about 1 mile south-west of Rochester, in Medway. Our applicators travel to Borstal for work on movement joints, handled exactly as we handle every other area. We work across 54 places in Medway, large and small. For work in that direction, see our London page (26 miles or so).

We take on movement joints across the ME1 and ME2 postcode area, whatever the building. Buildings on Hill Road, Manor Lane and Mount Road are within our area. Being close to the M2, Borstal is straightforward for us to reach. Just outside Borstal, we also work in Rochester (1 mile north-east), Strood (1 mile north), Cuxton (1 mile west), North Halling (2 miles west) and Wouldham (2 miles south-west). Bigger towns within reach include Gillingham (4 miles east), Rainham (5 miles east), Park Wood (5 miles east), Lordswood (4 miles south-east), Twydall (4 miles east) and Hoo St Werburgh (5 miles north-east).

Landmarks near Borstal

In Borstal, that means premises near Sir Joseph Williamson's Mathematical School, Former Ordnance Store At Chatham Gun Wharf and St John Fisher RC Comprehensive School. For rail, the closest station is Cuxton station, about 1 mile west. Other landmarks nearby include Six Poor Travellers House (1.3 miles north-east) and Rochester Castle (1.3 miles north-east). For a walk, there’s Blue Bell Hill and Ranscombe Farm.

Map of Borstal © OpenStreetMap contributors

How the job changes by surface

Brickwork and blockwork joints

Vertical movement joints in brick and block walls let the masonry grow and shrink. They take a low-modulus sealant with a movement class to suit, with backing rod setting the depth.

Cladding panel joints

Access to cladding joints is agreed before the price is fixed. Close-up photos help us judge the joints.

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • A joint that has to be widened or re-detailed before it can work
  • Leaks coming from the membrane rather than the joint seal
  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)

If in doubt, give us a call on 01277 525 020 or email us and we’ll say what we think before you book.

Surfaces we seal

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

Cost factors for movement joints

A fixed quote reflects the actual work. It allows for:

  • Distance, for remote addresses
  • Which sealant the job calls for
  • Phasing around occupants
  • How accessible the joints are

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote when you’re ready.

Sending details for a quote

We can often quote from photographs and a few details. Please tell us:

  • Rough lengths or quantities, or drawings if you have them
  • The postcode of the building
  • How the joints are reached, and at what height
  • The type of building and who uses it

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.

When to call us in Borstal

With no backing rod or bond-breaker in place, sealant grips the base of the joint too. Sealant fixed to the base and sides can’t flex, so it tears.

Most enquiries start with one or more of the following:

  • Sealant pulling off the joint face
  • Rain penetration at brick or block movement joints
  • Joints packed with grit and debris
  • Hardened, cracked sealant on exposed facades

In a school such as St William of Perth Roman Catholic Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak.

Before you book anyone

  • Who will actually carry out the work
  • What the guarantee covers, and for how long
  • Do they follow the manufacturer’s priming guidance?
  • How they’ll work around occupants

Our contractor checklist

Diagnose, treat, sign off

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you. What matters most for a job in Borstal is a clear list of what needs doing. A fixed quote follows.

  1. The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
  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. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  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.

What we need from you

  • Point out parking and an unloading spot
  • Tell staff and tenants when we will be in
  • Tell us what induction or permit system the site runs

Request a quote

Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Get a quick quote

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