Greater London · England
Floor & skirting joints in Selhurst, Greater London
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints for homes and businesses in Selhurst and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Open gaps along the bottom of skirting boards
- Tiled floors with no room to move
- Failed seals where bathroom floors meet baths and panels
How we handle floor joint sealing in Selhurst
Wet-area floor joints keep water out of the gap behind skirting and plinths. We seal them with a flexible, water-resistant sealant. If you have open joints that fill with dirt and skirting that has pulled away from the floor, we can put it right, whatever the surface.
London homes range from new-build flats to period conversions with new floors laid over old boards. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement.
Every job is covered by a 12-month guarantee, wherever you are in Greater London.
- Where
- Selhurst (SE25, SE20, CR0)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
If you are set on DIY, put the effort into 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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Joints and finishes in Selhurst homes
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. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
For site and facilities teams at buildings such as St Mark's Church of England Primary Academy, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. If you let a flat or house near Norwood Junction station, a tidy floor and skirting joint helps a rental look ready for the next tenant. If you look after a church, hall or community building such as Church of St Mark, floor and skirting joints in halls and kitchens wear like any others.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. From the centre of Selhurst to the outskirts, floor joint sealing is available for homes and businesses alike. Our area takes in 764 places across Greater London. You can also see our page for London, roughly 7 miles from Selhurst.
Jobs for floor joint sealing in SE25, SE20 and CR0 is quoted and booked the same way as anywhere else. If you need floor joint sealing at a property on Park Road, Court Road and Dixon Road or a nearby road, we can help. Main roads around Selhurst include the A213. If you’re just outside Selhurst, we cover South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). We also work in nearby towns such as London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Near you in Selhurst
Typical jobs here are in homes near Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub. Selhurst has its own railway station: Norwood Junction station. Nearby you’ll also find Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). Not far away are Duppas Hill and Dulwich Upper Wood.
Landlords, agents and businesses in Selhurst
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for property managers and facilities teams. We can quote a run of properties together.
How we quote for floor joint sealing
Every job gets its own quote. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Whether the work is at height
- How many areas need sealing
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- A few pictures by email, if you can
- How we’d reach the joints
- Whether it has been sealed before
- The type of property
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job, and pictures are welcome.
Different surfaces, different methods
Thresholds
Where a tiled floor meets timber or carpet, the joint takes movement from both sides. We bridge them with a flexible bead.
Skirting boards
Skirting gaps are one of the most common floor joints we seal. The old caulk is removed first so the new sealant bonds.
Why deal with it now?
Open joints along wet floors let water into the subfloor and behind skirting. Dealing with it early keeps the repair to the joint. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Selhurst, the repair is bigger than a sealant job.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first.
Why choose Mr Mastic in Selhurst
- A choice of colours where the product allows
- A 12-month guarantee on all work
- Approved under the ARBOMaster scheme
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost or what customers say.
Selhurst: your questions answered
Can parking be tricky for a visit in Selhurst?
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.
I let a flat near Norwood Junction station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we will quote it together.
How do I get a quote for floor joint sealing in Selhurst?
Size, access and the old material all affect the cost. Call for a quick quote.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Can you use decorators’ caulk instead?
Not where the floor moves or gets wet. Caulk cracks as the floor moves, so the gap comes back. A flexible sealant lasts longer there.
Do you work on commercial floors?
Yes, from warehouses and units to offices and shops. We can plan around your opening times with out-of-hours work where needed.
Is the work guaranteed?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
When something else is needed
A few problems are outside what sealant work can do:
- Floors that are uneven or need levelling
- A tiled floor that needs relaying
- Structural movement or subsidence
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Selhurst
- Concrete floor joints
- Commercial floors
- Wet room & bathroom floors
- Tiled floors
- Thresholds
- Skirting boards
What happens on the day
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a morning or an afternoon for most homes. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Selhurst. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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 cleaned, vacuumed and backed where depth needs controlling.
- 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.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
How to get a quote
Want a quote for floor joint sealing? Please ring 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.