Greater London · England
St Johns Floor Joint Sealing
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints for householders, landlords and businesses in St Johns. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Grout used at the floor edge instead of sealant
- Tiled floors with no room to move
- Failed joint filler in concrete floors
Common problems we fix in St Johns
Caulk is the usual filler for skirting. In a joint that moves or gets wet, it splits.
Look out for any of the following:
- Worn sealant at door thresholds
- Skirting that has pulled away from the floor
- Dirt and water collecting in open floor joints
- Failed seals where bathroom floors meet baths and panels
St Johns is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Before you book anyone
- What happens if the job turns out different
- What product goes in the joint
- What guarantee comes with the work
- Who turns up on the day
Floor joint sealing for homes and businesses in St Johns
The gap under a skirting board often opens as floors and walls move with the seasons. Decorators’ caulk generally cracks where there’s movement, so we use a flexible sealant that moves with the floor. We work on tiled floors, skirting boards and thresholds, and the jobs we see most are grout cracking in a straight line across a floor and grout used at the floor edge instead of sealant.
New flats are going up across London, many of them 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, large or small.
- Place
- St Johns (SE13, SE10, SE8)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Failed waterproofing under a wet room floor
- Floors that are uneven or need levelling
- Concrete repairs beyond the joint
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Thresholds
- Wet room & bathroom floors
- Concrete floor joints
- Tiled floors
- Skirting boards
- Commercial floors
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
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.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in St Johns and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
How it works
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours for most rooms, longer for large commercial floors, depending on how much there is to do. For a job in St Johns, 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.
- We clear the edges of the floor so the joints are easy to reach.
- Old material is removed from the joint.
- We clean and dry the edges of the joint.
- A flexible sealant suited to the floor is applied.
- We check the joints and explain the aftercare.
How to prepare
- Let us know about parking restrictions
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
What the job involves on each surface
Tiled floors
Perimeter joints in tiled floors should be sealant, not grout. We rake out any grout there and reseal.
Commercial floors
Shops, offices, warehouses and units all have floor joints that need sealing. The sealant is chosen for the traffic the floor takes.
What else we do in St Johns
Joints and finishes in St Johns homes
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. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.
For buildings such as Church of St John, joints in its floors, skirtings and thresholds need resealing as they wear. If you let a flat or house near St Johns station, open skirting and floor joints collect dirt and water, so seal them while the property is empty.
St Johns is about 4 miles south-east of London, in Greater London. We provide floor joint sealing to householders, landlords and businesses in St Johns and the surrounding area. Across Greater London, we cover 764 places, St Johns among them.
Postcode districts we cover here for floor joint sealing: SE13, SE10 and SE8. We cover properties on Avon Road, Mill Lane and Clare Road. Main roads around St Johns include the A2210 and A2211, which makes travel easy. Nearby, we also carry out floor joint sealing in New Cross (1 mile west), Deptford (1 mile north), Lewisham (1 mile south-east), Telegraph Hill (1 mile west) and Ladywell (1 mile south). Further out, we also cover London (4 miles north-west), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (8 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).
Local landmarks in St Johns
We work in homes and buildings around Wickham Arms, Brookmill Park and Addey and Stanhope School and the streets around them. Other local landmarks include St. Paul's (0.7 miles north) and Laban Centre (0.8 miles north). St Johns has its own railway station: St Johns station. A little further out are Fan Museum (0.9 miles north-east) and Lewisham Shopping Centre (0.7 miles south-east). For a walk, there’s Brookmill Road Local Nature Reserve and Tower Hill.
FAQs for St Johns
Can you help a landlord with a rental near St Johns station?
Yes. We work for landlords and agents as well as householders. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is St Johns in your area for floor joint sealing?
Yes, St Johns is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How long does floor joint sealing take?
That depends on the amount of work, but most jobs take a few hours, depending on the length of joint. We’ll give you a better idea when we quote.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Is there a guarantee?
Yes. Every job comes with a 12-month guarantee.
What does floor joint sealing cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email with a short description of the job.
Looking after it afterwards
Looking after new joints is easy:
- Walk round the room once a year and look at the edges
- Keep dirt out of the joints
- Lift furniture rather than dragging it across joints
- Use a well-wrung mop rather than flooding the floor
Keep off the joint for the time we give you. Feet are usually fine before mopping or wheeled traffic so we’ll give you each time.
Sealing a gap while it’s small is a quick job. Left alone, they collect dirt and widen and are harder to clean out.