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

Floor Joint Sealing contractors in Mortlake

Floor joint sealing and filling in warehouses, factories and industrial units in Mortlake and across Greater London. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Sealant pulled out along a truck route
  • Old filler gone hard, cracked or loose
  • Drivers complaining about joints on a route
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Floor joint sealing across Mortlake

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Floor joint sealing in Mortlake, done properly

Most industrial slabs are divided into panels with saw cuts and day 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. We work on saw-cut induced joints, retail and showroom floors and forklift and pallet-truck routes, and the usual reasons a site gets in touch are scruffy, dirty joint lines on a shop or showroom floor and drivers complaining about joints on a route. Facilities teams, main contractors and managing agents in Mortlake tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Areas such as a loading bay or car park deck in Mortlake usually 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.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Location
Mortlake (SW14, SW13, SW15)
Region
Greater London
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Questions about Mortlake

Does your area include sites such as Kew Retail Park, near Mortlake?

Yes. Estates, retail parks and business parks around Mortlake, Kew Retail Park among them, are all within reach. A few photos and the unit address let us price the work.

Can you take on a job at a hospital such as Barnes 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.

Which sealant will you use?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you cover Mortlake?

Yes. We cover Mortlake and the rest of Greater London. For a quote, give us a call on 01277 525 020 or email a schedule or drawings.

Is the floor joint work guaranteed?

There is a 12-month guarantee on our workmanship, and we hold public liability insurance.

Can you send site paperwork?

Each site asks for different documents, so tell us what you need and we will confirm it when we quote.

Can you fill joints where the arrises have spalled?

A filler needs sound edges to grip. If the arrises have spalled, we’ll say they need repair before filling and set out how that affects the job.

Work for main contractors and building owners

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.

Building owners and managing agents use us on everything from one building to a spread of sites around Mortlake. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Why act early in Mortlake

Broken joints shake trucks, stock and operators alike. Wheels and bearings wear faster and loads can shift, adding costs nobody plans for. A filled joint takes most of that out. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

Why us?

  • Fully insured
  • Constructionline member
  • Our applicators hold CSCS cards
  • One contact handling all your sites

Take a look at what affects the cost and how we’re accredited.

How the job changes by surface

Loading bays and dock areas

Dock areas see tight turns, heavy loads and weather blowing in. Joints here normally fail first so many programmes begin here.

Flexible floor sealants

Polyurethane sealants suit floor joints with larger movement. They give less edge support than semi-rigid fillers so they are used where movement matters more than wheel load.

Our process

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before we move to the next. Planning a London job such as one in Mortlake starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.

  1. First, the zones and order of work are agreed with you.
  2. We point out joints whose edges need repairing first.
  3. We clear each run back to clean concrete.
  4. We fill the joints with the agreed product, finished level.
  5. You get a time for each zone to reopen.

What we need from you

  • For older buildings, check the asbestos register before work
  • Warn occupants and staff about the work
  • Let us know about inductions and permits

Get a fixed quote

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, ring 01277 525 020 or send details through our quote form.

Ask for a quote

Read more

Joints that move: notes for Mortlake

At least three named trading, business or retail sites lie within about 3 miles of Mortlake. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. In London, decks, bays and service yards typically have to keep running, so the work is broken into short sections agreed with the building manager.

A campus such as University of Roehampton (1.1 miles south-east of Mortlake) has long runs of movement joint in its buildings, decks and paving. Schools like Thomson House School often have long brick elevations with movement joints that age quietly. Phasing is what makes joint work possible on busy sites such as Phoenix Trading Estate (2.5 miles north-west of Mortlake): one bay, aisle or car park row at a time.

Mortlake is about 3 miles west of Fulham, in Greater London. Mortlake sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 764 places across Greater London fall within our area, including Mortlake. Our London page has more on work in that area, about 8 miles away.

We cover the SW14, SW13 and SW15 postcode districts for floor joints. We cover commercial and managed buildings on Elm Road, Well Lane and Coval Road and the roads nearby. Being close to the A3003, Mortlake is straightforward for us to reach. We also cover East Sheen (1 mile south-west), North Sheen (1 mile north-west), Barnes (1 mile north-east), Grove Park (1 mile north) and Roehampton (1 mile south-east). A short drive away, we cover London (8 miles east), City of Westminster (6 miles north-east), Marylebone (6 miles north-east), Kensington (4 miles north-east), St Pancras (8 miles north-east) and Shoreditch (9 miles north-east).

Local landmarks in Mortlake

Locally, jobs take us to sites close to Richmond Park Academy, Hare and Hounds pub and Palewell Park and the streets around them. Mortlake has its own railway station: Mortlake station. Well-known places in the area include Ubuntu Museum: African Museum of Humanity (1.1 miles south-east) and Barnes Hospital (under half a mile east). Open spaces near Mortlake include Richmond Hill and Kew Gardens Lake.

Map of Mortlake © OpenStreetMap contributors

What we can’t put right

Being straight saves everyone time. New sealant won’t cure:

  • Uneven floors that need grinding or levelling
  • Structural cracking in the slab
  • A floor that rocks at the joints, which needs a structural fix

If you are not sure, just give us a call on 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.

Where we work in Mortlake

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

What sets the cost

Your fixed quote is built from the real scope. It allows for:

  • Whether the work must be split into stages
  • Whether old sealant has to be cut out first
  • Quantities, in metres or numbers
  • Access and working height

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote once you have the details.

Before you send an enquiry

Good information means a firmer quote. When you get in touch, include:

  • What the building is and how it’s used
  • Approximate linear metres or a joint schedule
  • Any specification or named product
  • The asbestos register, for older buildings

For a fixed quote, call the office on 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.

Accreditations

Trusted. Accredited. Insured.