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

Floor Joint Sealing contractors in Throcking

Floor joint sealing and filling in warehouses, factories and industrial units throughout Throcking and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Flexible sealant torn out by wheels
  • Joint edges breaking up under truck wheels
  • Open saw cuts full of debris
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Floor joint sealing in Throcking

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

Surface by surface

Semi-rigid joint fillers

A semi-rigid filler is stiff enough to hold the arrises up when wheels cross. They tolerate little movement so timing matters on newer slabs.

Loading bays and dock areas

We normally work through dock areas a few bays at a time so goods in and out carry on. Tell us your site hours and access windows and we’ll plan around them.

Floor joint sealing for commercial buildings in Throcking

Forklifts and pallet trucks are hard on open joints. Every pass chips at the bare concrete edge, and over time a neat cut turns into a ragged channel. A properly filled joint carries the wheel over and protects both arrises. It also smooths the route for drivers and stock. If you’re dealing with dock area joints that have failed first and joint fill separating from the concrete, we can help, on loading bays, joints along racking aisles and forklift and pallet-truck routes alike. Searching for sealant specialists in Throcking? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

For a site near Throcking, measurements and photos up front mean one trip where possible. Note joint widths and the traffic that uses them, and we’ll take it from there.

Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Where
Throcking (SG9)
Wider area
Hertfordshire
Guarantee
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Common problems we fix in Throcking

Left open, joints fill with grit, wrap and wood fragments. That debris is hard and levers at the edges as wheels pass, speeding up the damage.

Site and facilities staff are often the first to spot these:

  • Brittle joint filler breaking up
  • Open saw cuts full of debris
  • Sealant pulled out along a truck route
  • Joint edges breaking up under truck wheels

Phasing is what makes joint work possible on busy sites such as Buntingford Business Park (1.2 miles east of Throcking): one bay, aisle or car park row at a time.

Questions to ask before you book

  • The terms of the workmanship guarantee
  • Whether primer will be used where the manufacturer specifies it
  • Which product they’ll use, and why it suits the joint
  • Health and safety accreditation such as CHAS

Our contractor checklist

What sets the cost

Each job is priced on its own details. The main factors are:

  • Which sealant the job calls for
  • The total length or number of joints
  • How accessible the joints are
  • Phasing around occupants

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Drawings or a marked-up plan, if available
  • Photos of the joints, close up and from further back
  • What the building is and how it’s used
  • The site address and postcode

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. If you have questions first, call 01277 525 020 or email us.

Building owners, agents and FMs in Throcking

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.

On site: what to expect

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes a day or more, depending on the metres of joint and how many zones the floor is split into, and we clear our waste as we work. Jobs in and around smaller places like Throcking are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  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. Each joint is cleared of old fill and dirt and taken back to clean, sound edges.
  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.

Getting the site ready

  • Share the asbestos register for older buildings
  • Confirm the product named in the specification
  • Flag any permit to work we will need

Request a quote

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to call the office on 01277 525 020 or email drawings and photos.

Get a quick quote

Advice

Your questions answered

Is Throcking too small for you to travel to?

Not at all. Throcking 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.

Do you cover business parks and estates near Throcking, such as Honeywood Industrial Centre?

Yes, sites like Honeywood Industrial Centre are within our area, along with the rest of Throcking. Photos and a short description are enough for a first look.

Is colour matching possible?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.

Can you phase floor joint work around operations?

Usually only the zone we’re working in has to close. Traffic returns to each zone once it has cured, then we move to the next.

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

It depends on the traffic and the movement. Trafficked joints on truck routes normally need a semi-rigid filler to support the edges and joints with more movement take a flexible sealant.

What happens if old sealant might contain asbestos?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Warehouse floors and decks around Throcking

At least three named trading, business or retail sites lie within about 3 miles of Throcking. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. Throcking is about 31 miles from central London. Warehousing clusters around the motorways that ring and radiate from London.

In a school such as Freman College, movement joints in brick, block and hall floors tend to be forgotten until they leak. For an occupier at a site such as Honeywood Industrial Centre (0.5 miles west of Throcking), the joints at loading doors and dock levellers typically see the hardest wear.

Throcking is about 6 miles north-east of Stevenage, in Hertfordshire. Commercial clients in Throcking can call on us for floor joints. We work across 371 places in Hertfordshire, from busy centres to rural villages. London is covered too, some 31 miles away.

Business premises anywhere in SG9 are within our area. Nearby places we also cover include Cottered (1 mile south-west), Chipping (1 mile north-east), Buntingford (2 miles east), Aspenden (2 miles south-east) and Layston (2 miles east) for floor joints. Nearby towns on our patch include Stevenage (6 miles south-west), Bishop's Stortford (11 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (9 miles west), Hoddesdon (14 miles south) and Hatfield (15 miles south-west).

Around Throcking

A little further out are Clothall Castle (4.1 miles west). For a walk, there’s Hawkins Wood.

Map of Throcking © OpenStreetMap contributors

When it isn’t the sealant

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:

  • Wide or random cracking that suggests a structural issue
  • Unstable slabs moving under traffic
  • A floor that is out of level for the racking or trucks

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we’ll tell you honestly before you book.

Surfaces we seal

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

Trusted. Accredited. Insured.