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

Expansion Joint Sealing in St Mary Hoo

Expansion joint sealing for St Mary Hoo, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Torn sealant in brick or block movement joints
  • Spalled or broken joint edges in floors and decks
  • Car park joints leaking onto vehicles below
1
Send details
Photos, drawings or a schedule, or we visit.
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.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Expansion joint sealing in St Mary Hoo

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Building owners, agents and FMs in St Mary Hoo

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules.

How we handle expansion joint sealing in St Mary Hoo

Internal floor joints take trolleys, pallet trucks and forklifts. Without a sound filler, joint edges chip and spall under load so the product has to suit both the traffic and the movement. We’ll tell you if the edges need repairing before sealing, and phased work keeps areas in use. If you are dealing with expansion joints split through the centre of the bead and damp inside where a wall movement joint has failed, we can help, on podiums and floor movement joints, car park decks and ramps and brickwork movement joints alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in St Mary Hoo, preparation and product choice get the time they need.

For a site near St Mary Hoo, measurements and photographs up front mean one trip where possible. Tell us the joint widths if you can, and what drives or walks over them.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Location
St Mary Hoo (ME3)
Wider area
Medway
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

FAQs: St Mary Hoo

Is a hospital such as Medway Maritime Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is a smaller place like St Mary Hoo outside your area?

No. Small places get the same service as large ones. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.

How do you choose the sealant?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

What will the job cost?

It depends on the job: quantities, access, the product and any phasing. Call for a quote and we will price it properly.

When can you be on site?

Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

Do you seal on top of existing sealant?

No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

Can staff carry on working while you are here?

In the majority of cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.

When to call us in St Mary Hoo

Some joints were never sealed with the right product. A stiff or general-purpose sealant across a joint with large movement won’t cope. BS EN ISO 11600 classifies building sealants by movement capability, and specifications often refer to it.

Most enquiries start with one or more of the following:

  • Hardened, cracked sealant on exposed facades
  • Spalled or broken joint edges in floors and decks
  • Movement joints with split or torn sealant
  • Expansion joints filled with dirt and stones

Campuses like University of Greenwich - Medway (4.9 miles south-west of St Mary Hoo) mix old and new buildings, with movement joints wherever they meet.

Questions to ask before you book

  • Who will actually carry out the work
  • How joint depth will be controlled
  • How long is the guarantee, and what does it include?
  • Can the work be phased to keep areas open?

How to choose a sealant contractor

Traffic, movement and joints around St Mary Hoo

The sea is no more than about 2 miles from St Mary Hoo. Near the sea, external slabs, ramps and decks see salt air and driven rain as well as their usual loads, so a failed joint lets more in and the edges break up sooner. At about 30 miles from central London, St Mary Hoo is within reach of the capital. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital.

Hospitals like Medway Maritime Hospital (6 miles south-west of St Mary Hoo) have multi-storey or surface car parks whose joints carry vehicles round the clock.

St Mary Hoo is about 4 miles south of Canvey Island, in Medway. Looking for expansion joint sealing in St Mary Hoo? We can help. 54 places across Medway fall within our area, including St Mary Hoo. London is covered too, some 30 miles away.

If you need expansion joint sealing in ME3, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Sites close to St Mary Hoo are covered too, including Fenn Street (1 mile south-west), High Halstow (1 mile south-west), Sharnal Street (2 miles south-west), Tunbridge Hill (2 miles south) and Kingsnorth (2 miles south). Nearby towns on our patch include Gillingham (6 miles south), Chatham (8 miles south), Rochester (6 miles south-west), Rainham (7 miles south), Strood (7 miles south-west) and Luton (7 miles south).

Local landmarks in St Mary Hoo

Well-known places in the area include Bay Museum (3.6 miles north) and Medway Maritime Hospital (6 miles south-west). Green spaces nearby include Bishop Saltings.

Map of St Mary Hoo © OpenStreetMap contributors

Different surfaces, different methods

Cladding panel joints

Access to cladding joints is agreed before the price is fixed. Photos taken near the joints help us price accurately, or we visit if they don’t show enough.

Brickwork and blockwork joints

Long brick and block elevations have movement joints at intervals. We use a sealant rated for the movement, normally low-modulus, with backing rod setting the depth.

How a job runs

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before the next one starts. If others near St Mary Hoo need work, visits can be combined. A fixed quote is given before anything starts.

  1. We assess the joints on site or from photos, noting widths and how each has failed.
  2. You receive a fixed quote stating the product and the movement it is rated for.
  3. Where areas have to stay open, we agree a phased sequence before starting.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Getting the site ready

  • Make sure the joints can be reached
  • Point out parking and an unloading spot
  • Let us know about inductions and permits

Get a fixed quote

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or phone 01277 525 020 or email drawings and photos to discuss it first.

Get a price

Advice

General trades versus a specialist

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

What happens if it’s left?

Patching the worst lengths of a joint can make sense short term. But if the rest of the run is the same age and product, it’s usually not far behind, and a second visit means paying for access again. Where it helps, we quote both options. Around St Mary Hoo, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

What you get with us

  • A range of standard colours, depending on the product
  • One contact handling all your sites
  • A fixed quote before work starts
  • Fully insured, including public liability cover

Read our cost guide and our accreditations.

Accreditations

Trusted. Accredited. Insured.