Greater London · England
Floor & skirting joints in North End, Greater London
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints in North End, with a one-year guarantee on every job. Ask us for a quote.
- Skirting that has pulled away from the floor
- Gaps between floors and kitchen plinths
- Cracked grout where a tiled floor needs a movement joint
How we handle floor joint sealing in North End
In kitchens and bathrooms, the joint where the floor meets a bath panel, plinth or skirting takes mop water every day. A flexible silicone seal keeps it out. If you’re dealing with tiled floors with no room to move and worn sealant at door thresholds, we can put it right, on thresholds, commercial floors and concrete floor joints alike.
Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover, in North End and beyond.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- North End (NW3, NW11, N2)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together. The work normally takes a few hours, depending on the length of joint, depending on the size of the job. For a job in North End, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- First we check the joint and the floor and agree which sealant suits it.
- Old caulk, grout or sealant is removed from the joint.
- The joint is vacuumed clean, with backing fitted wherever depth matters.
- We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
Before we arrive
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
Getting a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work and send you a clear quote.
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.
Look out for these signs:
- Failed seals where bathroom floors meet baths and panels
- Concrete floor joints that have broken down
- Threshold joints that have opened or worn
- Dirt and water collecting in open floor joints
Schools such as The King Alfred School are buildings too, and floor and threshold joints in busy corridors wear quickly and are best resealed early.
What to look for in a quote
- What product goes in the joint
- What preparation is included
- Whether VAT is included
- What guarantee comes with the work
Also near North End
Other services in North End
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What affects the quote in North End
Every job gets its own quote. These are the things that affect it:
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
- The amount of work
- The product the joint needs
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.
Helping us quote
There’s no need for technical detail. Just tell us:
- Roughly how big the job is
- Any previous sealing or DIY work
- What’s wrong with the joints now
- The address or postcode of the job
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Floor joint sealing in North End: local notes
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 don’t all move the same way. That is why the skirting and threshold joints need a flexible seal.
As a London address, North End can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Letting a property close to Hampstead Heath station? Then a tidy floor and skirting joint helps a rental look ready for the next tenant.
North End is about 1 mile north of Greenhill, in Greater London. From the centre of North End to the outskirts, we cover floor joint sealing for every kind of property. North End is one of 764 places in Greater London we cover. For nearby work, see our London page.
Here we cover the NW3, NW11 and N2 postcode area for floor joint sealing. Streets in the area include Sandy Road, Park Avenue and Platt's Lane. You’ll find North End on the A502, which makes it straightforward to reach. We also cover the places around North End: Vale of Health (1 mile south-east), Childs Hill (1 mile south-west), Golders Green (1 mile north-west), Greenhill (1 mile south) and West Hampstead (1 mile south). Further out, we also cover London (6 miles south-east), City of Westminster (4 miles south), Marylebone (4 miles south-east), Kensington (5 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles south-east).
Around North End
Locally, jobs take us to homes and businesses close to The Old Bull and Bush pub, Childs Hill Park and The Henrietta Barnett School. North End’s nearest station is Hampstead Heath station, about 1.1 miles south-east. Other landmarks nearby include O2 Centre (1.4 miles south) and New End Hospital (0.7 miles south). Not far away are Turner's Wood and Darland's Lake.
Why act early in North End
Dirt builds up in open joints, and they look untidy. A neat sealed joint is easier to clean and finishes the floor. In a flat in North End, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in North End
- Old sealant always removed completely
- Experience in homes, commercial sites and hotels
- Sealant colour chosen to suit
- Neat joints and a tidy finish
Read what affects the cost and our reviews.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Subfloor problems that need a flooring contractor
- Leaks from a failed tanking system
- Movement too big for a sealant joint
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Tiled floors
- Commercial floors
- Wet room & bathroom floors
- Concrete floor joints
- Skirting boards
- Thresholds
Common questions in North End
I let a flat near Hampstead Heath station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover North End for floor joint sealing?
Yes. Our work covers London and the South East, and North End is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours, depending on the length of joint. We will give you a better idea when we quote.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Is there a guarantee?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.
Can you reseal concrete floor joints in an industrial unit?
Yes. Concrete floor joints in warehouses and units are part of our work. We’ll talk through the traffic and choose a sealant suited to it.
Is caulk good enough for skirting?
Because caulk cracks where there’s movement or water. Skirting joints move with the floor, so a flexible sealant suits them better.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first.