Dulwich expansion joint sealing
We carry out expansion and movement joint sealing in walls, decks and floors in Dulwich and the surrounding area. Send details for a fixed quote.
- Damp inside where a wall movement joint has failed
- Expansion joints filled with dirt and stones
- Sealant peeling off one face of the joint
Need expansion joint sealing in Dulwich?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle expansion joint sealing in Dulwich
If you need expansion joint sealing in Dulwich, start with photos and joint lengths. We will come and look where photographs don’t show enough, then send a fixed quote that names the sealant. You can also call the office on 01277 525 020 or email a schedule or drawings to talk the joints through. Most enquiries involve hardened, cracked sealant on exposed facades and sealant pulling off the joint face, across cladding panel joints, precast concrete panel joints and blockwork control joints. Most enquiries from Dulwich start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
Floor and movement joints in London take heavy use: car park decks, loading bays, shopping centre malls and podiums over occupied space. A failed joint lets water and debris in, and the edges soon spall, so it pays to act early.
A 12-month guarantee applies to all our work. If an installation problem shows up, speak to us on 01277 525 020 or email drawings and photos and we’ll arrange a return visit.
- Place
- Dulwich (SE22, SE21, SE23)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Why deal with it now?
Re-sealing with the same product that failed is often a false economy. A higher movement class, or a design change by the engineer, may be needed, and we’ll say so before quoting. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote when you’re ready.
Why appoint us
- A fixed quote before work starts
- Fully insured, including public liability cover
- Specification-led, product-correct work
- CHAS accredited
Take a look at how commercial sealant jobs are priced or how we’re accredited.
Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically 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, and we clear our waste as we work. Planning a London job such as one in Dulwich starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- First the joints are inspected, widths measured and the type of failure noted.
- You receive a fixed quote stating the product and the movement it is rated for.
- Where areas have to stay open, we agree a phased sequence before starting.
- We strip the old sealant or filler and prepare each face until it’s sound and dry.
- Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
- Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.
Preparing the site
- Explain the parking and delivery arrangements
- Let us know about inductions and permits
- Send asbestos survey details if the building is pre-2000
Ask for a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or email us.
Related advice
Traffic, movement and joints around Dulwich
Dulwich 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. London car parks, loading bays and podium decks often can’t close for long, so joints are sealed in sections with each area handed back once cured.
Another example is Parkhall Business Centre, 1.1 miles south-west of Dulwich, where floors and yards would be done in stages around the occupiers. A campus such as King's College London (to the north of Dulwich) has long runs of movement joint in its buildings, decks and paving.
Dulwich is about 1 mile south-east of Herne Hill, in Greater London. Commercial clients in Dulwich can call on us for movement joints, as part of our coverage of Greater London. We work across 764 places in Greater London.
If you need expansion joint sealing in SE22, SE21 and SE23, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Court Lane, Druce Road and Boxall Road or close by, we can quote for movement joints. Access to Dulwich is via the A2216, so getting applicators and materials to site is simple. Nearby places we also cover include Dulwich Village (1 mile north-west), West Dulwich (1 mile south), Herne Hill (1 mile north-west), Sydenham Hill (1 mile south-east) and Forest Hill (1 mile east). Bigger towns within reach include London (4 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (6 miles north) and Shoreditch (6 miles north).
Local landmarks in Dulwich
Around Dulwich, our work takes us to commercial buildings near The Crown and Greyhound pub, Dulwich Park and Alleyn's School. The nearest railway station is West Dulwich station, roughly 0.7 miles south-west. A little further out are Dulwich Community Hospital (0.9 miles north) and Greenwich Castle (4 miles north-east). For a walk, there’s Knight's Hill and Centre for Wildlife Gardening.
Surface by surface
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.
Brickwork and blockwork joints
Mortar snots and debris in the joint stop it working. Everything is raked out before backing and sealant go in.
Commercial clients in Dulwich
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Broken or spalled joint edges, which need repairing before any sealant goes in
- Proprietary pre-formed expansion joint systems
- Structural movement beyond what the joints were designed for (that needs a structural engineer)
If in doubt, ring 01277 525 020 or email the details over and we will say what we think.
Joints and surfaces we work on
- Precast concrete panel joints
- Car park decks and ramps
- Podiums and floor movement joints
- Brickwork movement joints
- Blockwork control joints
- Cladding panel joints
Questions about Dulwich
Does your area include sites such as Goose Green Trading Estate, near Dulwich?
Yes. We cover Dulwich and the area around it, including industrial estates, business parks and retail parks such as Goose Green Trading Estate. Photos and a short description are enough for a first look.
Do you work in London buildings with loading restrictions?
Yes. Inductions, permits and timed loading are routine for us in London. Send the building rules and access times with your enquiry.
Can you seal joints in cold or wet weather?
Sealant needs a dry joint and a temperature within the product’s range. Cold, damp or frosty mornings can stop work outside so external dates keep some flexibility.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.
Can you seal car park deck joints?
Yes, we do. These joints take wheels, salt and water, so product choice matters, and we’ll tell you if any edges need repairing first.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we will schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.
Nearby places to Dulwich
What else we do in Dulwich
When to call us in Dulwich
The edges of the material can fail rather than the sealant. If the edge of the joint is friable, the bond fails with it.
These are often picked up first by site or facilities staff:
- Spalled or broken joint edges in floors and decks
- Layers of sealant in a movement joint
- Rain penetration at brick or block movement joints
- Joints where the bead has lost adhesion
For an estate such as Maudsley Hospital, which lies north of Dulwich, the joints in ramps, decks and long building elevations all need attention over time.
What your quote should include
- Proof of insurance
- How they’ll work around occupants
- Who will actually carry out the work
- How joint depth will be controlled