Greater London · England
Floor Joint Sealing in North Finchley
Floor joint sealing for North Finchley and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Perimeter joints in tiled floors filled with grout
- Failed joint filler in concrete floors
- Gaps opening between the floor and skirting
Floor joint sealing in North Finchley
Across North Finchley, we seal floor and skirting joints in homes and businesses. We start by checking the floor type and the joint, since that decides which sealant suits. If you have floor edges that trap water and grime and failed joint filler in concrete floors, we can put it right.
Much of London’s new housing is flats in larger developments. Snagging there often goes through the developer or managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
Each job carries a 12-month guarantee, whatever its size.
- Location
- North Finchley (N12, N20, N11)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before we start. The work usually takes a few hours, depending on the length of joint. For a job in North Finchley, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First, the floor type, the gap and the traffic are checked.
- We remove what’s in the joint now.
- We vacuum out the joint and add backing where the depth needs setting.
- The chosen sealant goes in, coloured to suit the floor.
- The joint is tooled neatly and the cure time explained.
Getting ready for the visit
- Move anything stored near the joints
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
For floor joint sealing in North Finchley, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
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What we can’t put right
To be straight with you, some problems need a different trade:
- Loose, hollow or cracked tiles, which need a tiler
- Leaks from a failed tanking system
- Movement too big for a sealant joint
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Skirting boards
- Commercial floors
- Tiled floors
- Concrete floor joints
- Thresholds
- Wet room & bathroom floors
What affects the quote in North Finchley
You’ll get a clear quote before any work starts. It’s based on:
- The number and length of the joints
- The type of sealant required
- How easy the joints are to reach
- Working hours on commercial sites
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What to tell us for a quote
When you call or email, these details help:
- Where the job is, and your postcode
- Roughly how big the job is
- What’s wrong with the joints now
- The type of property
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
North Finchley questions
I let a flat near New Southgate station. Can you help?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Is parking a problem for a job in North Finchley?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Can you do several jobs on one visit?
Yes. Just list everything you need and you’ll get one quote.
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.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
What does floor joint sealing cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Floor joint sealing in North Finchley: local notes
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. That’s why the skirting and threshold joints need a flexible seal.
If you look after a building such as Sacks Morasha Jewish Primary School, entrance and corridor floor joints take a lot of traffic. North Finchley is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
North Finchley is about 1 mile north of Finchley, in Greater London. Every kind of property in North Finchley is covered for floor joint sealing. Every job comes with our 12-month guarantee. Our Greater London coverage runs to 764 places, North Finchley among them. London is on our list too, around 9 miles away.
Here we cover the N12, N20 and N11 postcode area for floor joint sealing. Whether your property is on High Road, Lodge Lane and Percy Road or anywhere close by, we can help. Main roads around North Finchley include the A1000, which makes travel easy. We also cover the places around North Finchley: Woodside Park (1 mile west), Oakleigh Park (1 mile north), Whetstone (1 mile north), Friern Barnet (1 mile east) and Finchley (1 mile south). Larger places within reach include London (9 miles south-east), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (7 miles south) and Shoreditch (8 miles south-east).
Near you in North Finchley
In North Finchley, that means homes and buildings near Friary Park, Woodhouse College and The Bohemia pub, among other places. Nearby too are Francis Skaryna Belarusian Library and Museum (0.5 miles west) and St Michael's Catholic Grammar School (within half a mile south-west). For rail, the closest station is New Southgate station, roughly 1.4 miles east of the centre. Well-known places in the area include Finchley Memorial Hospital (0.8 miles south) and Francis Skaryna Belarusian Library and Museum (0.5 miles west). The countryside around North Finchley includes Darland's Lake and Glebelands Local Nature Reserve.
How the job changes by surface
Concrete floor joints
Old filler, dust and debris are cleaned out of the joint first. Backing goes in where the depth needs controlling.
Commercial floors
Floor joint work in businesses can be planned around your hours. We can arrange out-of-hours work if the floor is busy.
What we’re called out for in North Finchley
A new floor or screed shrinks and settles as it dries. Gaps at the edges appear in the first year or so.
These are the problems we’re asked about most:
- Worn sealant at door thresholds
- Dirt and water collecting in open floor joints
- Chipped and open joints in warehouse floors
- Grout cracking in a straight line across a floor
If you look after a church, hall or community building such as St. Barnabas Church, floor and skirting joints in halls and kitchens wear like any others.
Questions to ask before booking
- Whether they seal over old material or remove it
- Is VAT in the price?
- What guarantee comes with the work
- What happens if the job turns out different
Why act early in North Finchley
An open concrete floor joint gets wider every time something heavy crosses it. Resealing it early protects the edges. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in North Finchley, the repair is bigger than the sealant job would have been.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why us?
- Sealant colour chosen to suit
- Anti-fungal silicone where joints get wet
- A choice of colours where the product allows
- A 12-month guarantee on all work
Take a look at our cost guide and what customers say.
Also near North Finchley
What else we do in North Finchley
Landlords, agents and businesses in North Finchley
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.