Expansion and movement joint sealing in Charlton, Greater London
Expansion and movement joint sealing in walls, decks and floors throughout Charlton and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Sealant peeling off one face of the joint
- Debris jammed in movement joints
- Movement joints with split or torn sealant
Expansion joint sealing across Charlton
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Common problems we fix in Charlton
Repeated failure often traces back to the wrong product. Products not classed for the movement fail early. Movement capability is set out in BS EN ISO 11600, and specifications often refer to it.
Any of the following is a good reason to get the joints checked over:
- Previous reseals laid over old sealant
- Joints where the bead has lost adhesion
- Rain penetration at brick or block movement joints
- Debris jammed in movement joints
Schools like Thorntree Primary School often have long brick elevations with movement joints that age quietly.
What to look for in a quote
- Can the work be phased to keep areas open?
- Their pre-qualification and accreditations
- Whether their applicators hold CSCS cards
- Will failed sealant be removed rather than covered?
About our expansion joint sealing in Charlton
Floor movement joints in warehouses, retail and public buildings carry wheeled traffic. Unsupported edges break up under wheels. If the arrises are already broken, we will say so before sealing and phasing can keep areas working. Most enquiries involve leaks through car park deck joints onto the level below and expansion joints split through the centre of the bead, on brickwork movement joints, cladding panel joints and car park decks and ramps. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Charlton, preparation and product choice get the time they need.
London’s floor joints are concentrated in warehouses and trade units, car parks, podiums and decks. Planning a job in Charlton means thinking about access, loading times and the ULEZ as well as the joints.
Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Where
- Charlton (SE7, SE18)
- Region
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Doing it in-house
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Nearby places to Charlton
Other services in Charlton
Surface by surface
Car park decks and ramps
Water coming through deck joints is the usual first sign. The old seal comes out, the edges are prepared and the joint resealed flagging broken edges along the way.
Concrete and precast panel joints
Precast and concrete panel joints move daily. We use a sealant classed for the movement, laid over backing to depth.
From enquiry to sign-off
We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Planning a London job such as one in Charlton starts with access. Give us the hours we can be on site and we will schedule to suit.
- Photos, joint lengths and drawings come to us, or we visit.
- We compare each joint’s width with the movement and the sealant’s capability, and flag anything that needs an engineer.
- Every joint is cleared of the failed seal and any grit packed into it.
- Edges are checked, and we tell you if any need repairing before sealing.
- The right sealant goes in at the right depth, bonded to the two sides only.
- Each area is handed back after its cure time, under our 12-month guarantee.
What we need from you
- Warn occupants and staff about the work
- Flag any permit to work we’ll need
- For older buildings, check the asbestos register before work
Ask for a quote
For a fixed quote, give us a call on 01277 525 020 or email the details over. Our quote form is another easy route.
Read more
Your questions answered
Can you take on a job at a hospital such as Queen Elizabeth Hospital?
Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.
Can you work at a site such as Stone Lake Retail Park, by Charlton?
Yes. We cover Charlton and the area around it, including industrial estates, business parks and retail parks such as Stone Lake Retail Park. A few photographs and the unit address let us price the work.
How soon can the area be used again?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
How do I request a quote?
There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.
Which product is best for expansion joints?
It depends on the movement, exposure and traffic. Low-modulus neutral-cure silicone suits many facade joints, while polyurethane is common in trafficked floor and deck joints unless the specification names something else.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Where floor joints take the most wear near Charlton
Charlton 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. In London, decks, bays and service yards normally have to keep running, so we seal in sections and hand areas back as each cures.
A campus such as Ravensbourne University London, 1.7 miles to the north-west of Charlton, has long runs of movement joint in its buildings, decks and paving. Across sites such as Charlton Gate Business Park, which lies west of Charlton, floor and movement joints can be sealed in phases so units keep working.
Charlton is about 2 miles west of Plumstead, in Greater London. We send applicators to Charlton for movement joints, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places. Sites around London have their own page, roughly 6 miles from Charlton.
Anyone looking for expansion joint sealing in SE7 and SE18 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Floyd Road, Guild Road and Priolo Road are within our area. Nearby places we also cover include New Charlton (1 mile north-west), Westcombe Park (1 mile west), Woolwich (1 mile east), Vanbrugh Park Estate (1 mile south-west) and Kidbrooke (2 miles south) for movement joints. Nearby towns on our patch include London (6 miles west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (10 miles west), St Pancras (7 miles west) and Shoreditch (6 miles north-west).
Near you in Charlton
In Charlton, that means premises near Charlton Park, Wildwood Montessori School and Royal Greenwich Trust School. Charlton has its own railway station: Charlton station. Other landmarks nearby include British Hospital for Mothers and Babies (0.5 miles east) and Gallions Reach Shopping Park (2.3 miles north-east). The countryside around Charlton includes Gilbert's Pit.
Why it’s worth doing now in Charlton
Resealing is normally the answer, not replacing the element. Where the edges are sound, cutting out and resealing is enough. If the edges have broken up, we’ll tell you they need repairing first. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Why appoint us
- CSCS-carded applicators
- Standard and matched colours in many product ranges
- Failed material removed, not covered up
- CHAS accredited contractor
Read how commercial sealant jobs are priced and our accreditations and insurance.
Looking after the joints
Keep the joints in good shape with a few simple steps:
- Put movement joints on the planned maintenance inspection round
- Report split or peeling joint sealant early
- Check joints after long freezing spells
- Reopen bays and walkways only after the stated cure time
Movement joints belong on the planned maintenance inspection list. A periodic look picks up tears and lifting before water gets in, when they’re still cheap to deal with. Should you spot a problem, you can give us a call on 01277 525 020 or use the quote form and send a picture.
When one joint fails, others of the same age are rarely far behind. Inspecting the whole run is worth the effort, so the work can be planned rather than rushed. We can suggest an order, worst joints first.