Expansion and movement joint sealing in Chislehurst, Greater London
Planning work on a movement joint in Chislehurst? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Movement joints with split or torn sealant
- Hardened, cracked sealant on exposed facades
- Damp inside where a wall movement joint has failed
Need expansion joint sealing in Chislehurst?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Our process
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing, and we clear our waste as we work. In Chislehurst, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We start with photos, approximate lengths and any drawings, visiting where needed.
- We compare each joint’s width with the movement and the sealant’s capability and tell you if the design looks wrong for the movement.
- 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.
- Areas reopen once cured, and the work carries our 12-month guarantee.
Before we start on site
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
- Agree which areas must stay open
Request a 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 the office on 01277 525 020 or email the details over.
Advice
Expansion joint sealing for commercial buildings in Chislehurst
Joints in car park decks and ramps are among the hardest-working in any building. Tyres load the edges, and de-icing salts and water work into any gap. We reseal deck and ramp joints with a trafficable sealant chosen for the movement. If you are dealing with brittle, chalky sealant on external joints and expansion joints split through the centre of the bead, we can put it right, whatever the surface. For commercial sealant work in Chislehurst, you deal with one contact from quote to sign-off, whether it’s one building or several.
Areas such as a loading bay or car park deck in Chislehurst normally have to stay in use. Joints are done in sections, with bays coned off one after another, so the site keeps operating, at times agreed with the building manager.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Place
- Chislehurst (BR7, BR1, BR2, SE9)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Different surfaces, different methods
Joints between different materials
Junctions between brick and render, or concrete and cladding, move independently. The product must bond to both substrates and cope with the movement, with primer where specified.
Concrete and precast panel joints
Precast and concrete panel joints move daily. The sealant needs the right movement capability and a controlled depth.
Slabs, ramps and loading bays in Chislehurst
London car parks, loading bays and podium decks often can’t close for long, so the work is broken into short sections agreed with the building manager. At least three named trading, business or retail sites lie within about 3 miles of Chislehurst. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
Sites like Queen Mary's Hospital, 1.7 miles to the east of Chislehurst, carry ambulances, deliveries and visitors’ cars over their road and deck joints. Retail centres such as The Mall (2.2 miles south-west of Chislehurst) have floors, service yards and car parks with joints under constant traffic.
Chislehurst is about 3 miles north-west of Orpington, in Greater London. We send applicators to Chislehurst for movement joints. 764 places across Greater London fall within our area, including Chislehurst. There’s a separate page for London, about 9 miles away.
Business premises anywhere in BR7, BR1, BR2 and SE9 are within our area. Buildings on Chislehurst High Street, Sanderson Square and Wilderness Road are within our area. Access to Chislehurst is via the A208 and B264, so getting applicators and materials to site is simple. Just outside Chislehurst, we also work in Elmstead (1 mile west), Foxbury (1 mile east), Bickley (1 mile south-west), Widmore (1 mile south-west) and Coldharbour (1 mile north-west). Bigger towns within reach include London (9 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (13 miles north-west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Landmarks near Chislehurst
In Chislehurst, that means premises near The Queens Head pub, Coopers School and Chislehurst Common. The closest station to Chislehurst is Chislehurst station, roughly 0.7 miles south-west of the centre. Well-known places in the area include The Glades (2.2 miles west) and Queen Mary's Hospital (1.6 miles east). Open spaces near Chislehurst include The Tarn and Summer Hill.
What happens if it’s left?
A failed joint seal doesn’t mean the slab, panel or wall needs replacing. If the material either side is sound, a properly prepared reseal restores the joint. We’ll flag where edges need repair before sealing. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Why us?
- Public liability insurance in place
- Coloured sealants to suit the setting, where available
- One number for every site we cover
- Fixed quotes based on photos, drawings or a visit
See our cost guide and how we’re accredited.
Also in Chislehurst
Your questions answered
Can you take on a job at a hospital such as Queen Mary's Hospital?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
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. Say when the building is occupied and when it’s quiet, and we will plan accordingly. The ULEZ covers the whole of Greater London, which we allow for
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Can you work while the building is occupied?
In the majority of cases, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Are your applicators CSCS-carded?
Yes. If you need card details for site access, let us know and we’ll send them with the quote.
When to call us in Chislehurst
The edges of the material can fail rather than the sealant. If the edge of the joint is friable, the bond fails with it so edge repair has to come before resealing.
These are often picked up first by site or facilities staff:
- Rain penetration at brick or block movement joints
- Previous reseals laid over old sealant
- Hardened, cracked sealant on exposed facades
- Car park joints leaking onto vehicles below
Another example is Chartwell Business Centre, which lies south-west of Chislehurst, where floors and yards would be done in stages around the occupiers.
Comparing quotes
- Will RAMS and insurance details be available?
- Who will actually carry out the work
- Their approach to joint depth and backing
- Their plan for phasing and protecting the area
Work for main contractors and building owners
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.
Doing it in-house
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.