Greater London · England
Floor & skirting joints in Kingston upon Thames, Greater London
Specialist floor joint sealing for Kingston upon Thames: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Skirting that has pulled away from the floor
- Grout cracking in a straight line across a floor
- Caulk that has cracked where the floor moves
Surface by surface
Wet room and bathroom floors
Wet room floors rely on sound joints at the walls. We reseal it with a flexible silicone suited to wet areas and we will say if the problem looks like more than the joint.
Skirting boards
If the skirting is painted, a paintable flexible sealant works well. In wet rooms and kitchens, silicone is usually better.
How we handle floor joint sealing in Kingston upon Thames
Floor joint sealing is mostly about choosing the right product and preparing the joint. We remove what’s there first, the joint is cleaned and backed where needed, then the new sealant goes in. If you have rigid edge joints in tiled floors and worn sealant at door thresholds, we can put it right, whatever the surface.
New flats are going up across London, many of them in larger developments. In a new development, snags are often reported through the developer or the managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
Your job is guaranteed for a year, as with all our work.
- Where
- Kingston upon Thames (KT2, KT1, TW10)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Kingston upon Thames
Dirt builds up in open joints and makes the floor look worn. A neat sealed joint is easier to clean. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
Leaving a failed joint generally makes the job bigger, not smaller. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Kingston upon Thames
- Experience in homes, commercial sites and hotels
- Sealant colour chosen to suit
- Arbo and Everbuild products
- We’re fully insured
Your questions about floor joint sealing in Kingston upon Thames
Can you help a landlord with a rental near Kingston station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Can parking be tricky for a visit in Kingston upon Thames?
Parking in Kingston upon Thames, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours, depending on the length of joint. We’ll give you a better idea when we quote.
Is caulk good enough for skirting?
Only on dry joints that do not move. It splits once the floor shifts, so the gap comes back. A flexible sealant is the better choice.
Can you quote for more than one area?
Yes. Just list everything you need.
When can I walk on the floor?
Follow the cure time we give you. Light use comes first, cleaning and heavy traffic later, depending on the product.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Where are you based?
We work from Crawley. We cover Kingston upon Thames and the rest of Greater London, along with the rest of our area.
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It usually takes a few hours for most rooms, longer for large commercial floors. In Kingston upon Thames, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- First we check the joint and the floor and agree which sealant suits it.
- Old caulk, grout or sealant is removed from the joint.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
- Finally we tool it smooth and explain when the floor can be used and cleaned.
How to prepare
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
How to get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Related advice
Landlord and commercial work in Kingston upon Thames
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Towns and villages near Kingston upon Thames
Other services in Kingston upon Thames
New homes and floors in Kingston upon Thames
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. The joint at the skirting or threshold has to allow for that.
Kingston upon Thames is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as St Luke's CofE Primary School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. For buildings such as Church of St Luke, floor and skirting joints in halls and kitchens wear like any others.
Kingston upon Thames is about 7 miles south-west of Kensington, in Greater London. Whether you are in the middle of Kingston upon Thames or further out, we cover floor joint sealing for every kind of property. Kingston upon Thames is one of 764 places in Greater London we cover. London is on our list too, about 11 miles from Kingston upon Thames.
Jobs for floor joint sealing in KT2, KT1 and TW10 works the same way as everywhere else we cover. You’ll find streets such as Sigrist Square, Old London Road and London Road, and we cover them all. Main roads around Kingston upon Thames include the B3365, so getting to you is simple. If you are just outside Kingston upon Thames, we cover Norbiton (1 mile east), Coombe (2 miles east), New Malden (2 miles south-east), Coombe Hill (2 miles north-east) and Motspur Park (2 miles east). Within a short drive, we also cover London (11 miles north-east), City of Westminster (9 miles north-east), Marylebone (10 miles north-east), Kensington (7 miles north-east), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
Local landmarks in Kingston upon Thames
In Kingston upon Thames, that means homes and buildings near Canbury Gardens, The Grey Horse pub and Kingston Grammar School, among other places. There’s a railway station in Kingston upon Thames itself: Kingston station. A little further out are Eel Pie Island Museum (2.6 miles north-west) and Kingston Hospital (0.7 miles east). For a walk, there’s Rose Walk and Kingston Hill Road area.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we quote for floor joint sealing
You will get a clear quote before any work starts. It’s based on:
- The size of the job
- How many areas need sealing
- When we can work, for business premises
- The type of sealant required
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
- Where the property is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep heavy wheels off new concrete joints until cured
- Keep dirt out of the joints
- Don’t slide heavy items over sealed joints
- Have a cracking tiled floor checked before tiles break
Lift furniture rather than sliding it over sealed joints. Sharp edges can cut the sealant especially in the first few days.
Cracks along tile grout lines come back unless the movement is dealt with. A flexible joint added early helps protect the tiles themselves.