The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Bexleyheath floor joint sealing

We carry out floor joint sealing and filling in warehouses, factories and industrial units in Bexleyheath and the surrounding area. Send details for a fixed quote.

  • Joint edges breaking up under truck wheels
  • A gap opening alongside old joint filler
  • Scruffy, dirty joint lines on a shop or showroom floor
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Floor joint sealing near Bexleyheath

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Floor joint sealing in Bexleyheath

Concrete floors in warehouses and factories are cut into bays by saw-cut joints and construction joints, and every one of those joints is an exposed edge under hard wheels. Our job is to put the right filler or sealant into them for the loads and the movement they see, so the arrises are supported and grit stays out. If you have filler that has parted from one face and flexible sealant torn out by wheels, we can put it right, whatever the surface. Most enquiries from Bexleyheath start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

London’s floor joints are concentrated in warehouses and trade units, car parks, podiums and decks. In Bexleyheath, as everywhere in London, access, loading and the ULEZ all come into the plan.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

Where
Bexleyheath (DA7, DA6, DA16)
Wider area
Greater London
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Why deal with it now?

An open joint is a modest filling job while its edges are sound. Wait until the edges have spalled and the concrete needs repairing before the joint can be filled, with longer closures to match. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.

What a job costs comes down to the quantity of joints, what has to come out first and the access. Call for a quote once you have the details.

Why choose Mastic Doctor in Bexleyheath

  • Fully insured, including public liability cover
  • CHAS accredited
  • 12-month guarantee on workmanship
  • A fixed quote before work starts

See what affects the cost or how we’re accredited.

Warehouse floors and decks around Bexleyheath

Less than 3 miles from Bexleyheath there are at least three named estates and business parks. Their warehouses, yards and car parks are exactly where joints take the most punishment. In London, decks, bays and service yards usually have to keep running, so we seal in sections and hand areas back as each cures.

University campuses such as University of Greenwich Avery Hill Campus, 2.7 miles west of Bexleyheath, have car parks, paved walkways and building elevations with movement joints. Large sites such as Erith and District Hospital (to the north-east of Bexleyheath) have car parks, service roads and long elevations with movement joints in brick and panels.

Bexleyheath is about 3 miles south-east of Plumstead, in Greater London. We cover commercial sites throughout Bexleyheath, whether it’s a single job or part of a planned programme. We work across 764 places in Greater London. There’s a separate page for London, roughly 10 miles from Bexleyheath.

If you need floor joint sealing in DA7, DA6 and DA16, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Lion Road, Hyde Road and Upton Road and the roads nearby. Sites close to Bexleyheath are covered too, including Upton (1 mile west), Crook Log (1 mile west), Blendon (1 mile south-west), Bexley (1 mile south) and Welling (1 mile west). Nearby towns on our patch include London (10 miles west), City of Westminster (13 miles west), Marylebone (13 miles west), Kensington (15 miles west), St Pancras (12 miles north-west) and Shoreditch (10 miles north-west).

Landmarks near Bexleyheath

Around Bexleyheath, our work takes us to commercial buildings near Danson Park, The Volunteer pub and Bexleyheath Academy, among other places. There’s a railway station in Bexleyheath itself: Bexleyheath station. Nearby you will also find Bexley Hospital (less than half a mile west) and Bexley Museum (1.2 miles south-east). For a walk, there’s Summer Hill and Wansunt Pit.

Map of Bexleyheath © OpenStreetMap contributors

For managing agents and facilities managers

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Questions we are asked in Bexleyheath

Do you work in London buildings with loading restrictions?

Yes, we plan every London job around the building’s own access rules. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly. All of Greater London is inside the ULEZ, and our planning allows for it

Is hospital work, at somewhere like Erith and District Hospital, something you do?

Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Is it fine to apply new sealant on top of old?

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Do your applicators hold CSCS cards?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

What affects the price in Bexleyheath

To price the job, we consider:

  • Joint width, depth and condition
  • Whether the work must be split into stages
  • Which sealant the job calls for
  • Whether old sealant has to be cut out first

A quote for floor joints depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.

Details that help us quote

Whether it’s one area or a whole building, the same details help:

  • How the joints are reached, and at what height
  • Clear photographs of the problem areas
  • Your programme or deadline
  • Rough lengths or quantities, or drawings if you have them

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or email the details over.

What we can’t put right

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • A floor that rocks at the joints, which needs a structural fix
  • A failing floor coating, which is a flooring contractor’s job
  • Uneven floors that need grinding or levelling

If in doubt, give us a call on 01277 525 020 or send details through our quote form and we’ll say what we think.

Surfaces we seal

  • Saw-cut induced joints
  • Joints along racking aisles
  • Loading bays
  • Forklift and pallet-truck routes
  • Construction joints
  • Retail and showroom floors

From enquiry to sign-off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. All of Greater London is in the ULEZ, and kerbside space in Bexleyheath can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. First comes a walk of the floor to record joint sizes, broken edges and traffic routes.
  2. A fixed quote follows, listing the treatment for each area and the order of work.
  3. Old filler, debris and contamination are cut or routed out back to clean concrete.
  4. Dust is extracted from the joint and primer applied where the manufacturer specifies it.
  5. The chosen product is placed to its specified depth and trimmed level with the floor.
  6. Each phase reopens when the product is ready for wheels, then we start the next.

Before we start on site

  • Have the specification and drawings to hand
  • Flag any permit to work we’ll need
  • Tell us which areas need to stay in use

Request a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Get a price

Advice

When to call us in Bexleyheath

Oil, laitance, dust and old cleaning chemicals build up inside joints. If the faces aren’t taken back to clean concrete first the new filler can’t stay bonded.

Typical triggers for a call:

  • Broken arrises where pallet trucks cross
  • Flexible sealant torn out by wheels
  • Saw-cut joints left open and packed with grit
  • Grimy joint lines spoiling a showroom floor

Business parks such as Old Bexley Business Park (1.3 miles south-east of Bexleyheath) have car parks, paved areas and long brick and panel elevations, all with movement joints.

What your quote should include

  • Their plan for phasing and protecting the area
  • What level of public liability insurance do they hold?
  • How long is the guarantee, and what does it include?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.