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

Industrial and floor joint sealing in Gravesend, Hertfordshire

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

  • Scruffy, dirty joint lines on a shop or showroom floor
  • Flexible sealant torn out by wheels
  • Saw-cut joints left open and packed with grit
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Floor joint sealing in Gravesend

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Floor joint sealing in Gravesend, done properly

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. We work on saw-cut induced joints, construction joints and loading bays, and the failures we’re asked to look at most are cracked and crumbling joint fill and saw-cut joints left open and packed with grit. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Gravesend, that means joint design, primers and backing rod as standard.

Jobs around smaller places like Gravesend are planned so the whole job is done in one visit, with the right materials on hand. Note joint widths and the traffic that uses them, and we will take it from there.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Gravesend (SG11)
Region
Hertfordshire
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026

Traffic, movement and joints around Gravesend

Rainfall across the South East, Gravesend included, is lower than in many parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, and where de-icing salt is spread in winter, open joints let it in. Central London is about 29 miles from Gravesend. Warehousing clusters around the motorways that ring and radiate from London; their floors carry heavy traffic every shift.

A healthcare site such as Herts and Essex Hospital, 4.6 miles south-east of Gravesend, depends on car parks, ramps and service yards whose joints take traffic all day. Warehouse floors on estates like Hadham Industrial Estate (to the south of Gravesend) carry pallet trucks and forklifts over every saw-cut joint.

Gravesend is about 4 miles north-west of Bishop's Stortford, in Hertfordshire. We cover Gravesend, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 371 places in Hertfordshire. For work in that direction, see our London page.

We take on floor joints across the SG11 postcode area. Just outside Gravesend, we also work in Albury (1 mile west), Clapgate (1 mile south-east), Furneux Pelham (2 miles north), Braughing (3 miles west) and Hay Street (3 miles west). Bigger towns within reach include Stevenage (12 miles west), Bishop's Stortford (4 miles south-east), Welwyn Garden City (14 miles south-west), Hoddesdon (12 miles south-west), Cheshunt (15 miles south-west) and Hertford (11 miles south-west).

Local landmarks in Gravesend

Recent enquiries here include premises near The Catherine Wheel pub and the streets around them. For rail, the closest station is Bishops Stortford station, roughly 4.2 miles south-east. Nearby you’ll also find Herts and Essex Hospital (4.6 miles south-east) and Bishops Stortford Local History Museum (3.1 miles south-east).

Map of Gravesend © OpenStreetMap contributors

Questions we’re asked in Gravesend

Is a smaller place like Gravesend outside your area?

Not at all. Gravesend is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Is Hadham Industrial Estate, near Gravesend, within your area?

Yes. Estates, retail parks and business parks around Gravesend, Hadham Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.

Do you use semi-rigid filler or flexible sealant on floor joints?

We decide joint by joint. Where hard wheels cross, a semi-rigid filler is typically right, and movement joints or perimeters need something flexible. The quote sets out what goes where.

Which sealant will you use?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Can the sealant be colour-matched?

Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We confirm what’s available for the specified product when we quote.

How soon can traffic go back on the floor?

The wait is set by the product’s cure time, and cold floors slow it down. Phasing is planned with that in mind.

Why it’s worth doing now in Gravesend

Tape, or whatever sealant is in the stores cupboard, may look like a fix for a while. Neither is made to carry wheels, and it typically ends up dragged across the floor. A product chosen for the traffic and movement does the job once. Around Gravesend, it’s better to renew all the failing joints at once. Send photographs of each area and we’ll quote for the lot.

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 you’ll have a fixed figure to work with.

What you get with us

  • Commercial sealant work since 2005
  • One contact handling all your sites
  • Workmanship guaranteed for 12 months
  • Our applicators hold CSCS cards

Read what affects the cost and our accreditations.

Commercial clients in Gravesend

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

What we’re called out for in Gravesend

A slab keeps shrinking for a long time after it is cast, and the saw cuts are there so it cracks in straight, controlled lines. As the panels contract, the joints widen, and a filler placed early can part company with one face.

Look out for the following:

  • Cracked and crumbling joint fill
  • Open saw cuts full of debris
  • Filler that has parted from one face
  • A rough ride across broken joints

Another example is Oaks Industrial Park, which lies north of Gravesend, where floors and yards would be done in stages around the occupiers.

What your quote should include

  • The terms of the workmanship guarantee
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • How the existing material will be dealt with
  • Will CSCS-carded applicators be on site?

Questions to ask before you appoint anyone

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Level or flatness problems across the floor
  • Wide or random cracking that suggests a structural issue
  • Spalled arrises, which need an edge repair first

If you’re not sure, just call 01277 525 020 or use the quote form and we’ll give you a straight answer.

Surfaces we seal

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

From enquiry to sign-off

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. Jobs in and around smaller places like Gravesend are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. We look at joint widths, edge condition and the traffic on each route.
  2. You get a fixed quote with the product and the phasing set out.
  3. Old filler, debris and contamination are cut or routed out back to clean concrete.
  4. Dust is sucked out of the joint and a primer used if the product data sheet asks for one.
  5. Filler or sealant goes in to the right depth and is finished flush with the slab.
  6. We tell you when each zone can carry trucks again and move on to the next.

Preparing the site

  • Let us know about inductions and permits
  • Tell us which areas need to stay in use
  • Send any specification or drawings in advance

Getting a fixed quote

For a fixed quote, ring 01277 525 020 or email drawings and photos. You can also send details through our quote form.

Get a price

Advice

Accreditations

Trusted. Accredited. Insured.