Expansion Joint Sealing in Erith
Expansion and movement joint sealing in walls, decks and floors in Erith and across Greater London. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Debris jammed in movement joints
- Torn sealant in brick or block movement joints
- Chipped joint edges on forklift routes
Expansion joint sealing across Erith
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Surface by surface
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.
Podium joints
Podium joints often sit within a waterproofing system. We reseal the joint where sealant is the specified fix.
About our expansion joint sealing in Erith
Long runs of brick or block have movement joints built in, and they’re easy to miss until the sealant fails. 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. We work on blockwork control joints, precast concrete panel joints and car park decks and ramps, and the failures we’re asked to look at most are expansion joints split through the centre of the bead and layers of sealant in a movement joint. A specialist sealant contractor works differently from a general builder: on jobs in Erith, preparation and product choice get the time they need.
Around Erith, as across London, joints are under constant load, from basement car parks and loading bays to podium decks and busy mall floors. When a joint fails, grit and water get in and the arrises start to break up.
Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Erith (DA8, DA17, DA7)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
For managing agents and facilities managers
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Questions we are asked in Erith
Can you work in a London building with booked loading and goods-lift slots?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
Does your area include sites such as Madford Trade Park, near Erith?
Yes, sites like Madford Trade Park are within our area, along with the rest of Erith. Photos and a short description are enough for a first look.
What exactly is a movement joint?
Movement joint is the broad term for any joint built in to let a structure move. On site, people tend to use them interchangeably, and the sealing method is much the same.
Can you seal joints in cold or wet weather?
Sealant needs a dry joint and a temperature within the product’s range. Frost, rain and condensation on steel or concrete can hold up external work, so we plan with the forecast in mind.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Is movement joint sealing guaranteed?
Each job is backed by a 12-month guarantee on the workmanship. The guarantee covers how we sealed, not damage caused afterwards.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Our process
Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For a job in Erith, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.
- We start with photos, approximate lengths and any drawings, visiting where needed.
- Joint widths and expected movement are checked against what the sealant can take, and flag anything that needs an engineer.
- Old sealant and debris are cut out of every joint.
- Any broken arrises or friable edges are flagged before work goes further.
- The right sealant goes in at the right depth, bonded to the two sides only.
- Areas reopen once cured, and the work carries our 12-month guarantee.
Preparing the site
- Arrange parking or a loading space
- Move anything stored against the joints
- Warn occupants and staff about the work
Getting a fixed quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or email us.
Advice
Leave it or put it right?
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. Tell us what has to stay open and we’ll plan around it. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.
A quote for movement joints depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.
Why appoint us
- Over 20 years of commercial sealing
- Public liability insurance in place
- Joints cleaned back to sound surfaces
- 12 months’ guarantee on every job
Take a look at what affects the cost or how we’re accredited.
What we are called out for in Erith
Sealant peeling cleanly off one side is an adhesion failure. Poor preparation, a skipped primer, or sealant bonded to the back of the joint are typical reasons and it often shows on rushed work.
These are often picked up first by site or facilities staff:
- Water getting into the wall through a failed joint
- Hardened, cracked sealant on exposed facades
- Movement joints with split or torn sealant
- Spalled or broken joint edges in floors and decks
At places like Europa Trading Estate, which lies north-east of Erith, joints are sealed a section at a time so operations carry on.
Comparing quotes
- Are they CHAS accredited or on Constructionline?
- Which product they’ll use, and why it suits the joint
- Will failed sealant be removed rather than covered?
- Whether their applicators hold CSCS cards
What sealant work can’t fix
We check first that sealant really is the fix. It won’t put right:
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- Structural movement beyond what the joints were designed for (that needs a structural engineer)
- Joints too narrow for the movement, which need redesigning by the engineer
Not sure which it is? You can give us a call on 01277 525 020 or email us and we will tell you honestly.
What we seal
- Precast concrete panel joints
- Podiums and floor movement joints
- Car park decks and ramps
- Brickwork movement joints
- Blockwork control joints
- Cladding panel joints
Nearby places to Erith
Other services in Erith
Where floor joints take the most wear near Erith
Few London car parks or loading bays can be taken out of use for more than a short spell, so joints are sealed in sections with each area handed back once cured. Erith has at least three named business or industrial parks inside a 3-mile radius. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
On industrial estates such as Madford Trade Park, which lies north-west of Erith, saw-cut floor joints, loading bay slabs and yard joints take the heaviest traffic. Hospitals like Erith and District Hospital (under half a mile south-west of Erith) have multi-storey or surface car parks whose joints carry vehicles round the clock.
Erith is about 3 miles north-west of Dartford, in Greater London. Across the DA8 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across Greater London, 764 places are covered, including Erith. For work in that direction, see our London page.
Work on movement joints is covered throughout DA8, DA17 and DA7, whatever the building. If your site is on Church Road, Town Square and Erith High Street or close by, send details and we’ll quote for movement joints. Just outside Erith, we also work in Northumberland Heath (1 mile south), Bexley Riverside (1 mile south), Belvedere (1 mile north-west), Lessness Heath (1 mile north-west) and Barnehurst (1 mile south). A short drive away, we cover London (11 miles west), City of Westminster (14 miles west), Marylebone (14 miles west), St Pancras (13 miles west), Shoreditch (11 miles west) and Walthamstow (11 miles north-west).
Near you in Erith
In Erith, that means premises near Trinity School, The Cross Keys pub and Erith School. Erith has its own railway station: Erith station. Nearby you’ll also find Erith Museum (less than half a mile east) and Erith and District Hospital (under half a mile south-west). For a walk, there’s Crossness Nature Reserve.