Floor Joint Sealing contractors in Platt
Floor joint sealing and filling in warehouses, factories and industrial units across Platt, by CSCS-carded applicators. CHAS accredited and fully insured.
- Sealant pulled out along a truck route
- Saw-cut joints left open and packed with grit
- Drivers complaining about joints on a route
Need floor joint sealing in Platt?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our floor joint sealing in Platt
Mastic Doctor has worked on joints in commercial buildings for over 20 years. Our CSCS-carded applicators follow your site induction and rules, and the business is CHAS accredited and a Constructionline member, with public liability insurance in place. Completed joints come with a 12-month guarantee on our workmanship. We work on joints along racking aisles, loading bays and construction joints, and the usual reasons a site gets in touch are joint fill separating from the concrete and loading bay joints breaking down. Facilities teams, main contractors and managing agents in Platt tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For a site near Platt, measurements and photographs up front mean one trip where possible. Note joint widths and the traffic that uses them, and we will take it from there.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Place
- Platt (TN15)
- Wider area
- Kent
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
From enquiry to sign-off
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Smaller jobs around Platt can be grouped with others nearby. You will have a fixed quote before work starts.
- First comes a walk of the floor to record joint sizes, broken edges and traffic routes.
- A fixed quote follows, listing the treatment for each area and the order of work.
- Each joint is cleared of old fill and dirt and taken back to clean, sound edges.
- Dust is extracted from the joint and primer applied where the manufacturer specifies it.
- The chosen product is placed to its specified depth and trimmed level with the floor.
- Each phase reopens when the product is ready for wheels, then we start the next.
What we need from you
- For older buildings, check the asbestos register before work
- Move anything stored against the joints
- Tell us what induction or permit system the site runs
Request a quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or send photos by email.
Read more
Traffic, movement and joints around Platt
The 3 miles around Platt take in two named trading estates, business parks or retail parks. Their warehouses, yards and car parks are exactly where joints take the most punishment. Central London is about 23 miles from Platt. The roads out of London are lined with trade parks and distribution sheds.
Schools like Platt Church of England Voluntary Aided Primary School often have long brick elevations with movement joints that age quietly. Parks like Bourne Enterprise Centre (0.8 miles west of Platt) combine paved areas, car parks and building elevations, each with joints that move. Sites like Sevenoaks Hospital, 5.7 miles west of Platt, carry ambulances, deliveries and visitors’ cars over their road and deck joints.
Platt is about 6 miles east of Sevenoaks, in Kent. Commercial clients in Platt can call on us for floor joints. Across Kent, 931 places are covered, including Platt. Our London page has more on work in that area (23 miles or so).
If you need floor joint sealing in TN15, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on St Mary's Close, Grange Road and Platt Common and the roads nearby. Nearby places we also cover include Comp (1 mile south-east), Borough Green (1 mile west), Crouch (1 mile south-west), Wrotham Heath (1 mile north-east) and Basted (1 mile south-west). Nearby towns on our patch include Maidstone (9 miles east), Dartford (12 miles north-west), Sevenoaks (6 miles west), Royal Tunbridge Wells (11 miles south), Gravesend (10 miles north) and Tonbridge (7 miles south).
What’s near Platt
Locally, jobs take us to sites close to Wrotham School, The Blue Anchor pub and Wrotham School and the streets around them. Platt’s nearest station is Borough Green & Wrotham station, about 0.9 miles west of the centre. Well-known places in the area include Ightham Court (1.8 miles west) and Beechin Wood Archery Museum (less than half a mile south-east).
What else we do in Platt
Questions about Platt
Can you work on a hospital site such as Sevenoaks Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Is Platt too small for you to travel to?
Not at all. Platt is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Are you CHAS accredited and on Constructionline?
Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.
Is it normal for joint filler to separate?
Young concrete carries on shrinking for a long time, so a semi-rigid filler can part from one face. A top-up normally puts it right.
Will you just go over the old sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
How do you choose the sealant?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How long does a job like this take?
That varies with the scale of the job, though a typical visit normally takes between a day and a number of days, set by the joint lengths, the edge condition and the phasing you need. Larger or phased jobs take longer, and we will give you a timescale with the quote.
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Damaged or worn floor coatings and screeds
- Uneven floors that need grinding or levelling
- Cracks across panels caused by settlement or overload
Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly.
Where we work in Platt
- Forklift and pallet-truck routes
- Construction joints
- Joints along racking aisles
- Retail and showroom floors
- Saw-cut induced joints
- Loading bays
Quoting for work in Platt
Before we quote, we look at:
- Induction, permit and paperwork requirements
- The size and state of each joint
- Removal of failed or old sealant
- Specialist products, such as fire-rated or hygienic sealants
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
We can often quote from photographs and a few details. It helps to include:
- What the building is and how it’s used
- Anything awkward about access or site hours
- Approximate linear metres or a joint schedule
- Your programme or deadline
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or send details through our quote form.
For managing agents and facilities managers
Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
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, with each stage agreed with your site contact.
Aftercare for building managers
A few simple habits keep the new joints working:
- Remind operators to lift rather than drag
- Make joint checks part of your floor inspections
- Keep trucks off new joints until we say they’re ready
- Tell us about strong cleaning chemicals before we quote
On younger slabs, a fine line can open down one side of a filled joint as the concrete keeps shrinking. It is a known trait of new floors and a later top-up deals with it in the majority of cases.
Every day an open joint stays full of grit, the edges take more punishment. Getting it filled stops the damage before it becomes a repair.
Leave it or put it right?
Holding off until the whole floor can close can take a long time. Phased in zones, the busiest routes can be treated first and the remainder follows on a plan that suits you. Halls, stores and units around places like Platt may not be checked every day, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What you get with us
- 12 months’ guarantee on every job
- Clear, fixed quotes
- Products installed to the manufacturer’s instructions
- Failed material removed, not covered up
Read our cost guide or how we’re accredited.