Kent · England

Floor & skirting joints in Knockholt, Kent

We cover Knockholt for sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly.

Rigid edge joints in tiled floors
Open joints around bathroom floor edges
Worn sealant at door thresholds

Need floor joint sealing in Knockholt?

Call 0345 464 0079

Get a quick quote

Knockholt questions

I let a flat near Knockholt station. Can you help?

Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Is Knockholt in your area for floor joint sealing?

Yes, Knockholt is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.

Is there any odour?

That depends on the sealant. Some products have a noticeable smell, others very little.

Are you fully insured?

Yes. We’re fully insured.

Can you add a movement joint to a tiled floor?

Often, yes, at the edges and along suitable lines. We remove the grout and seal the line with flexible sealant, giving the floor room to move.

Do you use a paintable sealant?

For painted skirting, we use a flexible product that can be painted. Silicone isn’t made to be painted, so we use it where the joint stays unpainted.

Do I need to be at home?

It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

Is the work guaranteed?

Yes. All our work carries our one-year guarantee.

About our floor joint sealing in Knockholt

Concrete floors in warehouses and units have joints that take heavy wear. Each is resealed with a floor-joint product suited to what runs over it. We work on tiled floors, skirting boards and concrete floor joints, and people most often call us about dirt and water collecting in open floor joints and grout used at the floor edge instead of sealant.

Older homes in small places like Knockholt often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Place: Knockholt (TN14)
Wider area: Kent
Cover: A year, on every job
Quotes: Quoted before any work starts
Telephone: 0345 464 0079
Last updated: 26 October 2026

Joints and finishes in Knockholt homes

Across Kent, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. That is why the skirting and threshold joints need a flexible seal.

For buildings such as St Katharine's Church, joints in its floors, skirtings and thresholds need resealing as they wear.

Knockholt is about 4 miles north-west of Sevenoaks, in Kent. For floor joint sealing in and around Knockholt, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover Kent from our Crawley base. Knockholt is one of 922 towns and villages in Kent we cover for floor joint sealing. For nearby work, see our London page, about 16 miles away.

All of TN14 is covered for floor joint sealing, from the main roads to the quietest streets. Local streets include Main Road and Blueberry Lane, and we cover them all. We also cover the places around Knockholt: Knockholt Pound (1 mile north-east), Halstead (2 miles north-east), Sepham Heath (2 miles north-east), Pratt's Bottom (2 miles north) and Twitton (3 miles east). Within a short drive, we also cover Dartford (11 miles north-east), Sevenoaks (4 miles south-east), Royal Tunbridge Wells (14 miles south-east), Gravesend (14 miles north-east), Tonbridge (11 miles south-east) and Northfleet (13 miles north-east).

Local landmarks in Knockholt

Around Knockholt, our work takes us to homes and buildings near The Three Horseshoes pub. Knockholt’s nearest station is Knockholt station, about 2.7 miles north-east of the centre. A little further out are Orpington Hospital (3.6 miles north) and Otford Heritage Centre (3.9 miles east). For a walk, there’s Betsom's Hill and Downe Bank.

Map of Knockholt © OpenStreetMap contributors

DIY versus a professional finish

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

What we are called out for in Knockholt

Wheels crossing an unfilled concrete joint chip its edges. Pallet trucks and trolleys knock the edges away.

The problems people usually mention when they call are:

Caulk that has cracked where the floor moves
Failed joint filler in concrete floors
Rigid edge joints in tiled floors
Worn sealant at door thresholds

For landlords with property near Knockholt station, a tidy floor and skirting joint helps a rental look ready for the next tenant.

Comparing quotes

Whether they seal over old material or remove it
Whether the sealant suits the joint
How the colour is chosen
Who turns up on the day

How to choose a mastic man

What the job involves on each surface

Thresholds

Thresholds take daily traffic, so we choose a hard-wearing, flexible product and neatly finished.

Skirting boards

Skirting-to-floor joints are a regular job for us. We take out any cracked caulk before sealing so the bead sits on a clean surface.

Why deal with it now?

Floor joints left open collect dirt that’s hard to clean out. A neat sealed joint is easier to clean and look tidier. In a small place like Knockholt, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.

Why choose Mr Mastic in Knockholt

White, clear, grey or another colour, product permitting
Trusted Arbo and Everbuild sealants
4.9 on Google from 180+ five-star reviews
An ARBOMaster approved applicator

Read how sealant jobs are priced or our reviews.

What sealant work can’t fix

A few problems are outside what sealant work can do:

Large cracks that need a surveyor
Failed waterproofing under a wet room floor
Loose, hollow or cracked tiles, which need a tiler

If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.

Where we work in Knockholt

Skirting boards
Tiled floors
Thresholds
Wet room & bathroom floors
Concrete floor joints
Commercial floors

Quotes for floor joint sealing in Knockholt

You will get a clear quote before any work starts. It takes into account:

The product the joint needs
The number and length of the joints
When we can work, for business premises
Mould in or behind the old joints

What you pay reflects the work, not guesswork. That is why we ask a few questions first and give you a clear price before work begins.

Helping us quote

When you contact us, it’s useful to know:

Any access issues, like height or stairs
If someone has resealed it before
What’s wrong with the joints now
If it’s domestic, commercial or a hotel

Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work.

The process

We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job normally takes a few hours, depending on the length of joint. For a village or hamlet like Knockholt, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.