Greater London · England
Floor & skirting joints in North End, Greater London
Floor joint sealing across North End and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Gaps at thresholds between rooms
- Failed seals where bathroom floors meet baths and panels
- Skirting that has pulled away from the floor
Floor joint sealing for homes and businesses in North End
Large tiled floors, and those over underfloor heating, often need movement joints. Where one is needed, we rake out the grout along the right line and replace it with flexible sealant. We are often asked to deal with open joints around bathroom floor edges and grout used at the floor edge instead of sealant, across concrete floor joints, thresholds and tiled floors.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement, in North End as anywhere.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Where
- North End (W14, SW6, SW5)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in North End
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
How the job changes by surface
Wet room and bathroom floors
Wet room floors rely on sound joints at the walls. It’s resealed with a sanitary silicone and we’ll say if the problem looks like more than the joint.
Thresholds
Thresholds between rooms meet two floors and often a door frame. We seal them with a flexible sealant that suits both sides.
Joints and finishes in North End homes
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. Across Greater London, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and they do not all move the same way. That’s why the skirting and threshold joints need a flexible seal.
For site and facilities teams at buildings such as The Fulham Boys School, floor and threshold joints in busy corridors wear quickly and are best resealed early. For buildings such as St. Andrew's Fulham Fields, joints in its floors, skirtings and thresholds need resealing as they wear.
North End is about 1 mile south of Kensington, in Greater London. Homes, rented property, offices and hotels in North End can book us for floor joint sealing, old or new, large or small. Every job comes with our 12-month guarantee. Across Greater London, we cover 764 places, North End among them.
Here we cover the W14, SW6 and SW5 postcode area for floor joint sealing. Floor joint sealing is available to properties on Sun Road, Star Road and Field Road. We also cover West Kensington (1 mile east), Brook Green (1 mile north-west), Fulham (1 mile south), Hammersmith (1 mile west) and Brackenbury Village (1 mile north-west). Larger places within reach include London (5 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).
Near you in North End
Typical jobs here are in homes near Seven Stars pub, Polish Library POSK in London and Avonmore Primary School and the streets around them. The nearest railway station is Kensington Olympia station, roughly 0.5 miles north of the centre. A little further out are Hammersmith Broadway (0.7 miles west) and Montfichet's Tower (4.8 miles east). Not far away are WWT London Wetland Centre and Campden Hill.
Quotes for floor joint sealing in North End
The price is agreed before any work begins. It takes into account:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- How many areas need sealing
- The product the joint needs
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Whether it’s a home or a business
- If someone has resealed it before
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Places near North End
Also in North End
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for most rooms, longer for large commercial floors. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We start by looking at the floor, the gap and the traffic, then choose the product.
- We take out any old caulk, sealant or grout along the line.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
- We tool the joint neatly and tell you when it can be walked on and cleaned.
Getting ready for the visit
- Mention any parking rules near the property
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
When to call us in North End
Concrete floor joints break down when traffic runs over open or failed joints. Hard wheels damage the joint edges until the joint widens.
If you can see any of these, it’s time to have the joints looked at:
- Open gaps along the bottom of skirting boards
- Failed seals where bathroom floors meet baths and panels
- Grout used at the floor edge instead of sealant
- Cracked grout where a tiled floor needs a movement joint
Letting a property close to Kensington Olympia station? Then gaps at skirtings and thresholds are worth sealing between tenancies.
Comparing quotes
- Are they insured?
- When the joint can take water or movement
- Which sealant they’ll use, and why
- What guarantee comes with the work
When something else is needed
Before you book, it’s worth knowing the limits too:
- Bouncy or failing floorboards
- Water getting under the tiles from elsewhere
- A tiled floor that needs relaying
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Thresholds
- Concrete floor joints
- Tiled floors
- Commercial floors
- Skirting boards
- Wet room & bathroom floors
North End questions
I let a flat near Kensington Olympia station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Is parking an issue for floor joint sealing in North End?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Do you guarantee your work?
Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover North End.
Can I do it myself?
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.
My floor grout keeps cracking in a line. Can you help?
In many cases, yes. We replace the grout along a suitable line with flexible sealant coloured to suit. Loose or cracked tiles need a tiler first.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
What information do you need?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Vacuum floor joints regularly to stop grit building up
- Walk round the room once a year and look at the edges
- Keep floor cleaning water to a minimum at the edges
- Ask before painting over a sealed joint
Follow the cure time before walking on or cleaning the joint. Light foot traffic is generally fine sooner than wet cleaning or wheels so we’ll give you each time.
Small gaps are quick to seal. Left alone, they collect dirt and widen.