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

Industrial and floor joint sealing in Hexton, Hertfordshire

We carry out floor joint sealing and filling in warehouses, factories and industrial units in Hexton and the surrounding area. Send photos or drawings for a fixed quote.

  • Brittle joint filler breaking up
  • Joint fill separating from the concrete
  • Sealant pulled out along a truck route
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Need floor joint sealing in Hexton?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Why it’s worth doing now in Hexton

A floor coating laid over open joints soon cracks along the joint lines. The joints have to be filled or sealed as joints, whether or not the floor is coated. Older rural buildings around Hexton move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

What you get with us

  • A fixed quote before work starts
  • CHAS accredited
  • One contact handling all your sites
  • Failed material removed, not covered up

See how commercial sealant jobs are priced or our accreditations.

Floor joint sealing in Hexton, done properly

Open joints take a beating from forklift and pallet-truck wheels. Each crossing knocks the unsupported edge, and over time a neat cut turns into a ragged channel. A properly filled joint carries the wheel over and protects both arrises, which is kinder to trucks, loads and operators. Site teams most often ask us about unfilled floor joints collecting dirt and grit and failing joints at loading bays and dock doors, across loading bays, construction joints and joints along racking aisles. Searching for sealant specialists in Hexton? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.

Around smaller places such as Hexton, floor joints are often in barns and farm buildings turned into workshops, stores and offices. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.

We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and if something we did falls short, we return to it.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Hexton (SG5)
Wider area
Hertfordshire
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026

Keeping the joints sound

After handover, a little attention goes a long way:

  • Treat loading bay joints first if they’re failing
  • Plan for a top-up on newer floors
  • Tell us about strong cleaning chemicals before we quote
  • Photograph any joint that starts to chip

Young concrete carries on shrinking, so some fillers part slightly from one face. It is a known trait of new floors and a later top-up deals with it in most cases.

Treating joints while the arrises are sound keeps the work simple. After the edges go, repairs come into it and that takes longer and closes areas for longer.

Diagnose, treat, sign off

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes between a day and a number of days, set by the joint lengths, the edge condition and the phasing you need, and our waste is bagged and taken away as we go. Smaller jobs around Hexton can be grouped with others nearby. You’ll have a fixed quote before work starts.

  1. We walk the floor and mark up joint widths, edge damage and traffic routes.
  2. The treatment and the zones are set out in a fixed quote.
  3. Each joint is cut or routed back to clean, sound concrete.
  4. We extract the dust and prime the faces if the product needs it.
  5. Filler or sealant is placed to depth and finished flush.
  6. Zones reopen once cured and the work moves on.

Getting the site ready

  • Point out any areas we must not close
  • Tell us what induction or permit system the site runs
  • Send your site hours and access windows

Get a fixed quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Get a price

Related advice

Questions we’re asked in Hexton

Is Hexton too far out for you?

No. Small places get the same service as large ones. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

Can you work at a site such as Manor Farm Business Park, by Hexton?

Yes. Our area takes in Hexton and its surroundings, with estates and business parks such as Manor Farm Business Park included. Send details of the unit and the work through our quote form for a quick quote.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Is it normal for joint filler to separate?

On newer slabs, the concrete keeps shrinking after the joints are filled, so a semi-rigid filler can part from one face. It is typically dealt with by topping up.

How long before trucks can use the joints?

Each product has its own cure time, and cold floors slow it down. We plan the phasing so that waiting time fits your operation.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Slabs, ramps and loading bays in Hexton

Rainfall across the South East, Hexton 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. Hexton has two named business or industrial parks inside a 3-mile radius. Their warehouses, yards and car parks are exactly where joints take the most punishment.

In a school such as Hexton Junior Mixed and Infant School, movement joints in brick, block and hall floors tend to be forgotten until they leak. Office parks like Manor Farm Business Park, 1.3 miles to the north of Hexton, have decks, ramps and clad elevations whose joints take movement every day.

Hexton is in Hertfordshire. We send applicators to Hexton for floor joints. We work across 371 places in Hertfordshire, from busy centres to rural villages. There’s a separate page for London, roughly 34 miles from Hexton.

Postcode districts covered here: SG5. Nearby places we also cover include Pegsdon (1 mile east), Apsley End (2 miles north-east), Hanscombe End (2 miles north), Shillington (3 miles north-east) and Pirton (3 miles east). Bigger towns within reach include Hemel Hempstead (15 miles south), Stevenage (10 miles south-east), St Albans (15 miles south), Welwyn Garden City (14 miles south-east), Harpenden (10 miles south) and Hitchin (5 miles east).

Landmarks near Hexton

Around Hexton, our work takes us to commercial buildings near Recreation Ground, among other places. For rail, the closest station is Harlington station, about 4.5 miles west. A little further out are Ravensburgh Castle (0.9 miles south-west) and John Dony Field Centre (3.9 miles south). The countryside around Hexton includes Butts Hill and Barton Gravel Pit.

Map of Hexton © OpenStreetMap contributors

When to call us in Hexton

Joints near dock doors see colder air, rain blown in and water off vehicles, as well as the tightest turning loads. They are often the first on a site to break down.

Clients usually get in touch after noticing something like this:

  • Loading bay joints breaking down
  • Sealant pulled out along a truck route
  • Cracked and crumbling joint fill
  • Untidy open joints in a retail unit

Across sites such as Barton Industrial Estate, 2.2 miles to the west of Hexton, floor and movement joints can be sealed in phases so units keep working.

Comparing quotes

  • Is the sealant right for the movement and the substrate?
  • Can the work be phased to keep areas open?
  • Will failed sealant be removed rather than covered?
  • Their pre-qualification and accreditations

Our contractor checklist

How the quote is worked out

To price the job, we consider:

  • Whether old sealant has to be cut out first
  • Whether the work must be split into stages
  • Joint width, depth and condition
  • How much there is to seal

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

What to include in your enquiry

The more we know, the firmer the quote. Helpful details to send:

  • What the building is and how it’s used
  • Whether an asbestos survey exists
  • Access details, including height
  • Clear photos of the problem areas

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to phone 01277 525 020 or send details through our quote form.

Should maintenance staff do it?

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Accreditations

Trusted. Accredited. Insured.