Greater London · England
Floor Joint Sealing in Riddlesdown
Floor joint sealing across Riddlesdown and nearby, with old sealant always removed completely.
- Rigid edge joints in tiled floors
- Floor edges that trap water and grime
- Gaps at thresholds between rooms
What sealant work cannot fix
It helps to know what we cannot do too:
- Movement too big for a sealant joint
- Subfloor problems that need a flooring contractor
- Damaged concrete that needs breaking out and repairing
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Concrete floor joints
- Thresholds
- Commercial floors
- Tiled floors
- Wet room & bathroom floors
- Skirting boards
About our floor joint sealing in Riddlesdown
In commercial and industrial units, concrete floor joints take a hammering from wheels and traffic. Each is resealed with a floor-joint product suited to what runs over it. If you’re dealing with open gaps along the bottom of skirting boards and floor edges that trap water and grime, we can help, on wet room & bathroom floors, skirting boards and concrete floor joints alike.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, and new homes need their plot mastic finished properly before handover.
Each job carries a 12-month guarantee, large or small.
- Where
- Riddlesdown (CR8, CR2)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Riddlesdown
Do you work for landlords with property near Riddlesdown station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is parking a problem for a job in Riddlesdown?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Do you have insurance?
Yes. We’re fully insured, and we can confirm the details when we quote.
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.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can grout be replaced with sealant on a tiled floor?
Often, yes. Where a floor needs one, we rake out grout along the right line and replace it with flexible sealant in a matching colour. Loose or cracked tiles need a tiler first.
Can sealant along the skirting be painted?
Where the skirting will be painted, we can use a flexible sealant that takes paint. Silicone is not made to be painted, so it’s kept for wet areas and unpainted joints.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you will get one quote.
For landlords and businesses
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.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a morning or an afternoon for most homes. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We look at the gap and the floor type and agree the right sealant.
- Old caulk, grout or sealant is removed from the joint.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
- We tool the joint neatly and tell you when it can be walked on and cleaned.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Related advice
What floor joint sealing looks like in Riddlesdown
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. 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.
For site and facilities teams at buildings such as Harris Primary Academy Kenley, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. Letting a property close to Riddlesdown station? Then a tidy floor and skirting joint helps a rental look ready for the next tenant.
Riddlesdown is about 1 mile east of Purley, in Greater London. We carry out floor joint sealing for householders, landlords and businesses in Riddlesdown and the surrounding area, as part of our work across Greater London. Our Greater London coverage runs to 764 places, and Riddlesdown is one of them. London is on our list too, about 12 miles from Riddlesdown.
Here we cover the CR8 and CR2 postcode area for floor joint sealing. Whether your property is on Hyde Road, Lower Road and Famet Avenue or anywhere close by, we can help. With the A22 close by, Riddlesdown is simple for us to get to. We also cover the places around Riddlesdown: Kenley (1 mile south), Sanderstead (1 mile north-east), South Croydon (2 miles north), Hamsey Green (2 miles south-east) and Whyteleafe (2 miles south). Within a short drive, we also cover London (12 miles north), City of Westminster (13 miles north), Marylebone (13 miles north), Kensington (13 miles north), St Pancras (14 miles north) and Shoreditch (13 miles north).
Near you in Riddlesdown
Around Riddlesdown, our work takes us to homes and buildings near Riddlesdown Collegiate and Dollypers Hill, among other places. There’s a railway station in Riddlesdown itself: Riddlesdown station. Well-known places in the area include Croydon Airport Visitor Centre (2 miles north-west) and Purley War Memorial Hospital (1 mile north-west). The countryside around Riddlesdown includes Duppas Hill and Foxley Wood.
What the job involves on each surface
Wet room and bathroom floors
Bathroom floors meet baths, trays, panels and skirting. We seal them with anti-fungal sanitary silicone to keep water out of the edges.
Thresholds
Two different floors meeting at a threshold move differently. We bridge them with a flexible bead.
Towns and villages near Riddlesdown
More services for Riddlesdown
Why it’s worth doing now in Riddlesdown
An open concrete floor joint gets wider every time something heavy crosses it. A sealed joint supports the edges before they need a bigger repair. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Riddlesdown
- Anti-fungal silicone where joints get wet
- We are fully insured
- White, clear, grey or coloured to suit, where the product allows
- 180+ five-star Google reviews
Signs you need floor joint sealing in Riddlesdown
Grout is rigid, so a tiled floor with nowhere to move cracks along a grout line. Cracks often run straight along a line of joints, showing where a movement joint was needed.
Most people get in touch when they notice something like this:
- Failed joint filler in concrete floors
- Open joints around bathroom floor edges
- Caulk that has cracked where the floor moves
- Grout used at the floor edge instead of sealant
As a London address, Riddlesdown can be tricky for parking: let us know about parking bays, permits or a driveway.
What your quote should include
- What product goes in the joint
- How long the guarantee is
- How much experience the applicator has
- How long to leave it before use
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.