Greater London · England
Floor Joint Sealing in Anerley
Specialist floor joint sealing for Anerley: careful preparation, the right product and tidy work. Call for a quick quote.
- Threshold joints that have opened or worn
- Caulk that has cracked where the floor moves
- Gaps between floors and kitchen plinths
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Floor joint sealing in Anerley
Large tiled floors, and those over underfloor heating, often need movement joints. Where one is needed, we rake out the grout along the right line and replace it with flexible sealant coloured to suit the grout. Typical jobs include concrete floor joints that have broken down and grout cracking in a straight line across a floor, on thresholds, skirting boards and tiled floors.
Much of London’s new housing is flats 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.
Our work is backed for twelve months.
- Where
- Anerley (SE20, SE19, SE26)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for floor joint sealing
Your quote is based on your job. We look at:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Helping us quote
There’s no need for technical detail. Just tell us:
- How we’d reach the joints
- Whether it’s a home or a business
- Photos by email, if that’s easy
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- A tiled floor that needs relaying
- Subfloor problems that need a flooring contractor
- Concrete repairs beyond the joint
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Tiled floors
- Concrete floor joints
- Skirting boards
- Commercial floors
- Wet room & bathroom floors
- Thresholds
Nearby places to Anerley
Also in Anerley
Floor joint sealing around Anerley
Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent. Across Greater London, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. The joint at the skirting or threshold has to allow for that.
For buildings such as St Paul's, joints in its floors, skirtings and thresholds need resealing as they wear. Rented homes near Anerley station change hands often, and a tidy floor and skirting joint helps a rental look ready for the next tenant. As a London address, Anerley can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Anerley is about 2 miles north-east of Thornton Heath, in Greater London. Across the SE20 area, we can carry out floor joint sealing at your property. Across Greater London, we cover 764 places, and Anerley is one of them. You can also see our page for London, about 6 miles away.
We work across SE20, SE19 and SE26 for floor joint sealing and the streets around it. If you need floor joint sealing at a property on Maple Road, Padua Road and Genoa Road or anywhere close by, our applicators can take on the job. We also cover Penge (1 mile east), Crystal Palace (1 mile north), Sydenham (1 mile north-east), Gipsy Hill (1 mile north-west) and Upper Norwood (1 mile west). Further out, we also cover London (6 miles north), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (8 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
Near you in Anerley
We work in homes and buildings around Crystal Palace School, Crystal Palace Dinosaurs and Harris City Academy Crystal Palace. Anerley has its own railway station: Anerley station. Nearby you’ll also find Crystal Palace Museum (0.5 miles north-west) and Whitgift Centre (3.1 miles south-west). Open spaces near Anerley include Dulwich Upper Wood and Knight's Hill.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Keep caulk for dry, still joints only
- Ask before painting over a sealed joint
- Have a cracking tiled floor checked before tiles break
- Lift furniture rather than dragging it across joints
Check the joints after the first winter. Small gaps at the ends can be touched up.
Once concrete joint edges start to break, wheels make it worse. Sealing them early protects the edges and the floor safer.
Anerley: your questions answered
I let a flat near Anerley station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Is parking an issue for floor joint sealing in Anerley?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Do you seal floor joints in bathrooms and kitchens?
Yes. Where a floor meets a bath panel, kitchen plinth or skirting in a wet area, we use a flexible silicone.
Why does the gap under my skirting keep coming back?
Normally it’s movement: timber drying in winter, floors settling, or caulk that can’t stretch. A flexible sealant stays closed as the floor moves.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months, large or small.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
How long before the joint can take traffic?
You’ll get the times before we go. That depends on the product, and light foot traffic is generally fine before wet cleaning or wheels.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. It normally takes a few hours for most rooms, longer for large commercial floors. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- We start by checking the floor, the joint and what traffic it takes.
- 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.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
Ask for a quote
For floor joint sealing in Anerley, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Read more
Why deal with it now?
Caulk is quick and cheap, but it cracks where the joint moves or gets wet, but the movement soon cracks it. A flexible sealant stretches instead and keeps the joint sealed. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Anerley, the repair is bigger than a sealant job.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Why book with us
- Full insurance on every job
- Quality sealants from Arbo and Everbuild
- A 12-month guarantee on all work
- More than 20 years in sealant work
See our cost guide and our reviews.
Surface by surface
Wet room and bathroom floors
Bathroom floor edges get wet at every clean. A flexible seal stops water running into the gap.
Thresholds
Thresholds take daily traffic, so we choose a hard-wearing, flexible product and tool it flush.