Greater London · England
St Ann's Floor Joint Sealing
Floor joint sealing for St Ann's and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Open joints around bathroom floor edges
- Open gaps along the bottom of skirting boards
- Skirting caulk that keeps splitting
Different surfaces, different methods
Thresholds
Threshold joints get a lot of feet, so we choose a hard-wearing, flexible product and tool it flush.
Skirting boards
Skirting pulls away from the floor as floors shrink and settle. A flexible sealant closes the gap without cracking painted or coloured to match.
Floor joint sealing in St Ann's
We seal floor joints in homes, offices and commercial buildings across St Ann's. We start by checking the floor type and the joint, because the right sealant depends on both. Typical jobs include failed seals where bathroom floors meet baths and panels and open gaps along the bottom of skirting boards, across tiled floors, skirting boards and commercial floors.
Much of London’s new housing is flats in larger developments. In a new development, snags are often reported through the developer or the managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
A one-year guarantee comes as standard.
- Place
- St Ann's (N15, N4, N16)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Avoid sloshing water against skirting
- Check skirting joints after the heating season
- Don’t slide heavy items over sealed joints
- Sweep along the edges of the floor
Keep off the joint for the time we give you. Feet are generally fine before mopping or wheeled traffic.
Open skirting gaps let in draughts, dust and sometimes insects. Sealing it keeps the room tidier.
What floor joint sealing looks like in St Ann's
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.
For site and facilities teams at buildings such as St Ann's CE Primary School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. Community buildings like St Ann's Church are part of the picture too: joints in its floors, skirtings and thresholds need resealing as they wear. As a London address, St Ann's can be tricky for parking: let us know about parking bays, permits or a driveway.
St Ann's is about 2 miles north-west of West Hackney, in Greater London. Whether you are in the middle of St Ann's or further out, we cover floor joint sealing for every kind of property. Our Greater London coverage runs to 764 places, St Ann's among them. There’s also a page for London, about 6 miles away.
Jobs for floor joint sealing in N15, N4 and N16 is quoted and booked the same way as anywhere else. Floor joint sealing is available to properties on Ida Road, Elmar Road and Grove Road. We also cover the places around St Ann's: West Green (1 mile north-west), Seven Sisters (1 mile east), South Tottenham (1 mile east), Harringay (1 mile west) and Tottenham Green (1 mile north-east). Within a short drive, we also cover London (6 miles south), City of Westminster (5 miles south-west), Marylebone (5 miles south-west), Kensington (8 miles south-west), St Pancras (4 miles south) and Shoreditch (4 miles south).
Near you in St Ann's
Locally, jobs take us to homes and businesses close to Church of St Andrew, No.8 Seven Sisters pub and Moselle Upper School and the streets around them. You will also find Chestnuts Park (under half a mile west) and Park View School (0.5 miles north-west). St Ann's has its own railway station: Seven Sisters station. Well-known places in the area include City of London Maternity Hospital (1.7 miles south-west) and The Mall Wood Green (1.4 miles north-west). Green spaces nearby include Railway Fields and Hollow Pond.
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A careful DIYer can reseal a simple joint, such as a straightforward 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
For a quick quote, just ask. The main things that affect it are:
- When we can work, for business premises
- The amount of work
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
Before you ask for a quote, have a think about:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- The address or postcode of the job
- Access, such as stairs, a lift or height
Getting a quote is simple: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.
What happens on the day
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours, depending on the length of joint. In a London area like St Ann's, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We look at the gap and the floor type and agree the right sealant.
- Whatever is in the joint now, whether caulk, grout or sealant, comes out.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- The sealant goes in, chosen for the floor and coloured to suit it.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
Preparing for the visit
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we’re working on
Getting a quote
If you are in St Ann's and need floor joint sealing, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
Also near St Ann's
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Questions from St Ann's
I let a flat near Seven Sisters station. Can you help?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Can you do floor joint sealing in St Ann's?
Yes. We work across London and the South East, and St Ann's is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
How long does the job take?
That depends on how much there is to do, but as a guide it takes a morning or an afternoon for most homes. We will tell you when we quote.
When can I walk on the floor?
We’ll tell you before we leave. It depends on the sealant, and light foot traffic is generally fine before wet cleaning or wheels.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints.
Are you fully insured?
Yes. Mr Mastic is fully insured.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Concrete repairs beyond the joint
- Large cracks that need a surveyor
- Water getting under the tiles from elsewhere
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Where we work in St Ann's
- Skirting boards
- Commercial floors
- Concrete floor joints
- Wet room & bathroom floors
- Tiled floors
- Thresholds
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
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.