Greater London · England
Floor & skirting joints in Plumstead, Greater London
Floor joint sealing across Plumstead and nearby, with every bit of old sealant taken out first.
- Gaps between floors and kitchen plinths
- Open gaps along the bottom of skirting boards
- Perimeter joints in tiled floors filled with grout
Leave it or put it right?
Waiting until the next redecoration can mean a winter of draughts and dirt in the gaps. It’s a quick job to seal them now in most rooms. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble for homes in Plumstead.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why choose Mr Mastic in Plumstead
- Over 20 years’ experience
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
About our floor joint sealing in Plumstead
Wet-area floor joints keep water out of the gap behind skirting and plinths. We seal them with a flexible, water-resistant sealant so water and dirt cannot get in. If you have gaps between floors and kitchen plinths and skirting that has pulled away from the floor, we can help, whatever the surface.
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.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or send us an email.
- Location
- Plumstead (SE18, SE28, E16)
- Region
- Greater London
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need floor joint sealing in Plumstead?
A new floor or screed shrinks and settles as it dries. Gaps at the edges appear in the first year or so and anything rigid cracks.
The most common problems we see are:
- Failed joint filler in concrete floors
- Threshold joints that have opened or worn
- Skirting caulk that keeps splitting
- Tiled floors with no room to move
For site and facilities teams at buildings such as South Rise Primary School, entrance and corridor floor joints take a lot of traffic.
Comparing quotes
- What product goes in the joint
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- Who does the work, and how experienced they are
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Act on grout cracks that run in a straight line
- Mark off resealed joints in warehouses
- Don’t fill floor joints with caulk where they move or get wet
- Sweep along the edges of the floor
Check the joints after the first winter. If anything has opened, it’s easy to reseal.
A gap under the skirting collects dust and lets draughts through. Sealing it early keeps the room cleaner and the edges sound.
Landlord and commercial work in Plumstead
If you manage several properties in or around Plumstead, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Floor joint sealing in Plumstead: local notes
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. The joint at the skirting or threshold has to allow for that. Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent.
If you let a flat or house near Plumstead station, a tidy floor and skirting joint helps a rental look ready for the next tenant. Plumstead is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Plumstead is about 8 miles east of London, in Greater London. Anywhere in SE18, our applicators can take on floor joint sealing. Plumstead is one of 764 towns and villages in Greater London we cover for floor joint sealing. There’s also a page for London, roughly 8 miles from Plumstead.
Jobs for floor joint sealing in SE18, SE28 and E16 is quoted and booked the same way as anywhere else. That includes homes and businesses on Moy Lane, Love Lane and Tuam Road. Being close to the A206, Plumstead is simple for us to get to. We also cover Woolwich (1 mile west), Shooter's Hill (1 mile south-west), East Wickham (1 mile south-east), Charlton (2 miles west) and New Charlton (2 miles west). We also work in nearby towns such as London (8 miles west), City of Westminster (10 miles west), Marylebone (10 miles west), Kensington (12 miles west), St Pancras (9 miles west) and Shoreditch (7 miles west).
Around Plumstead
In Plumstead, that means homes and buildings near Shooters Hill Sixth Form College, Plumstead Manor School and Plumstead Common, among other places. Plumstead has its own railway station: Plumstead station. Other landmarks nearby include British Hospital for Mothers and Babies (1.3 miles west) and Greenwich Castle (3.6 miles west). Green spaces nearby include Gilbert's Pit.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Questions from Plumstead
Can parking be tricky for a visit in Plumstead?
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.
Do you work for landlords with property near Plumstead station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
How long does the job take?
Typically it takes a few hours, depending on the length of joint. Larger jobs naturally take longer, and we will say how long yours will take.
Do you use a paintable sealant?
Where the skirting will be painted, we can use a flexible sealant that takes paint. Silicone is not made to be painted, so we use it where the joint stays unpainted.
Is caulk good enough for skirting?
Only on dry joints that don’t move. It splits once the floor shifts and the gap reopens. A flexible sealant is the better choice.
How much does floor joint sealing cost in Plumstead?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
Why does the gap under my skirting keep coming back?
Floors shrink and settle, especially in the first year or two and through the heating season. Caulk tends to crack; a flexible sealant doesn’t.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Quotes for floor joint sealing in Plumstead
Your quote is based on your job. We look at:
- The amount of work
- Any working-time requirements on site
- Access and height
- Which sealant suits the joint
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
How the visit works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for most rooms, longer for large commercial floors. For a job in Plumstead, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First, the floor type, the gap and the traffic are checked.
- Any old caulk, grout or sealant is raked or cut out.
- The joint is vacuumed clean and backing fitted where needed.
- The chosen sealant goes in, coloured to suit the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Before we arrive
- Clear items away from the joints we are working on
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
Getting a quote
If you are in Plumstead and need floor joint sealing, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.