Expansion and movement joint sealing in Bexley, Greater London
We carry out expansion and movement joint sealing in walls, decks and floors in Bexley. Send photos or drawings for a fixed quote.
- Debris jammed in movement joints
- Torn sealant in brick or block movement joints
- Water getting into the wall through a failed joint
Expansion joint sealing across Bexley
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Our process
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Most London premises stay occupied while we’re on site, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- First, the joints are inspected for width, movement and the type of failure.
- Next, we fix a price and confirm the sealant we propose for the movement.
- We strip out the old seal and prepare the faces, flagging any broken edges that need repair before sealing.
- Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
- Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
- We check every joint before sign-off, and the work carries our 12-month guarantee.
What we need from you
- Point out parking and an unloading spot
- Point out any areas we must not close
- Let building users know which areas are affected
Ask for a quote
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
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Expansion joint sealing in Bexley, done properly
Few joints take as much punishment as those in a car park. Tyres load the edges, and de-icing salts and water work into any gap, so failed seals soon lead to leaks onto the level below and broken edges. A sealant suited to traffic and the expected movement goes in, phasing bays so the car park can stay in use. We work on cladding panel joints, brickwork movement joints and blockwork control joints, and the failures we’re asked to look at most are debris jammed in movement joints and car park joints leaking onto vehicles below. A specialist sealant contractor works differently from a general builder: on jobs in Bexley, preparation and product choice get the time they need.
Most London buildings can’t shut a car park, loading bay or warehouse floor for long. 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 behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant.
- Location
- Bexley (DA5, DA6, DA14, DA1)
- Region
- Greater London
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Places near Bexley
More services for Bexley
Common questions from Bexley clients
Can you work at a site such as Old Bexley Business Park, by Bexley?
Yes. We cover Bexley and the area around it, including industrial estates, business parks and retail parks such as Old Bexley Business Park. To start, just call 01277 525 020 or email us with the unit, the joints involved and your access times.
Would you work within a site like Queen Mary's Hospital?
Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you work on car park ramps and decks?
Yes. Let us know the opening hours and which levels or bays have to stay available and we will plan around them.
What causes movement joint sealant to fail?
Most often the movement is too much for the product or the joint width. We review the joint design as well as the sealant before pricing so the same failure isn’t repeated.
How do we ask for a quote?
The quote form is the simplest route, though you can also call 01277 525 020 or use the quote form. Include photos or drawings if you have them.
How long will the joint resealing take?
It usually 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. We confirm the timescale with the quote along with the phasing plan.
Cost factors for movement joints
A fixed quote reflects the actual work. It takes account of:
- Joint width, depth and condition
- Site requirements such as inductions and permits
- Location, for remote and island sites
- Access and working height
The specified product makes a difference, and so does the preparation. Access, phasing and site requirements come into it too.
Before you send an enquiry
Diagnosis starts before we arrive. Let us know:
- The postcode of the building
- Rough lengths or quantities, or drawings if you have them
- The asbestos register, for older buildings
- Specification clauses that apply
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or send details through our quote form.
What happens if it’s left?
Some quotes just add sealant over the old bead. A bead over the old seal can’t bond or flex. Full removal and preparation is in every quote. In Bexley, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
What you get with us
- Standard and matched colours in many product ranges
- Colours chosen to suit frames, cladding or finishes where possible
- Colour options checked against the specified product
- Constructionline member for supplier checks
See how commercial sealant jobs are priced or our accreditations and insurance.
Where floor joints take the most wear near Bexley
Few London car parks or loading bays can be taken out of use for more than a short spell, so we seal in sections and hand areas back as each cures. Bexley has at least three named business or industrial parks inside a 3-mile radius. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic.
Large sites such as Queen Mary's Hospital (to the south-west of Bexley) have car parks, service roads and long elevations with movement joints in brick and panels. For buildings at a park such as Old Bexley Business Park, 0.7 miles to the east of Bexley, brick and panel movement joints are easy to forget until one leaks.
Bexley is about 3 miles east of Eltham, in Greater London. If you are looking for expansion joint sealing in Bexley, we can help, as we do across Greater London. Bexley is one of 764 places we cover in Greater London for movement joints. London is covered too, around 11 miles from Bexley.
We take on movement joints across the DA5, DA6, DA14 and DA1 postcode area, whatever the building. We cover commercial and managed buildings on Bexley High Street, Camden Road and The North Glade and the roads nearby. Being close to the A2018 and B2210, Bexley is easy to get to with materials and equipment. If your building is just outside Bexley, we cover Blendon (1 mile north-west), North Cray (1 mile south), Bexleyheath (1 mile north), Upton (1 mile north) and Coldblow (1 mile east). Bigger towns within reach include London (11 miles west), City of Westminster (13 miles west), Marylebone (13 miles north-west), Kensington (15 miles west), St Pancras (12 miles north-west) and Shoreditch (11 miles north-west).
Near you in Bexley
Locally, jobs take us to sites close to St Columba's Catholic Boys' School, Danson Park and Townley Grammar School, among other places. Bexley’s nearest station is Bexley station, about 0.6 miles east. A little further out are Broadway Shopping Centre (1 mile north-east) and Bexley Museum (1.1 miles east). Open spaces near Bexley include Summer Hill and Wansunt Pit.
Different surfaces, different methods
Concrete and precast panel joints
Precast panels often have surface residues that sealant won’t bond to. We prepare the faces thoroughly and prime where the maker calls for it, so the new seal holds.
Podium joints
Podium decks are exposed and often trafficked. We choose a product that copes with feet, wheels and weather.
Signs you need expansion joint sealing in Bexley
Some joints were never sealed with the right product. Products not classed for the movement fail early. Movement capability is set out in BS EN ISO 11600.
Most enquiries start with something like this:
- Weathered movement joint sealant that no longer flexes
- Spalled or broken joint edges in floors and decks
- Damp inside where a wall movement joint has failed
- Sealant pulling off the joint face
At a retail site such as Broadway Shopping Centre (1 mile north-east of Bexley), trolleys, cages and cars run over floor and slab joints all day.
What your quote should include
- Are they CHAS accredited or on Constructionline?
- Their plan for phasing and protecting the area
- Do they follow the manufacturer’s priming guidance?
- How they handle RAMS and site documents
For managing agents and facilities managers
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.