Greater London · England
Floor & skirting joints in Mitcham, Greater London
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints for homes and businesses in Mitcham and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Cracked grout where a tiled floor needs a movement joint
- Floor edges that trap water and grime
- Failed seals where bathroom floors meet baths and panels
Floor joint sealing for homes and businesses in Mitcham
Gaps along the bottom of skirting are common in new and older homes alike. Caulk tends to crack there, so we use a flexible sealant that moves with the floor. We’re often asked to deal with rigid edge joints in tiled floors and open gaps along the bottom of skirting boards, across concrete floor joints, tiled floors and wet room & bathroom floors.
New flats are going up across London, many of them in larger developments. In a new development, snags are often reported through the developer or the 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 drop us an email.
- Location
- Mitcham (CR4, SW16, SM4)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need floor joint sealing in Mitcham
Wheels crossing an unfilled concrete joint chip its edges. Hard wheels damage the joint edges until the joint widens.
Signs it’s time to call us include:
- Cracked grout where a tiled floor needs a movement joint
- Floor edges that trap water and grime
- Gaps between floors and kitchen plinths
- Skirting that has pulled away from the floor
Mitcham is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- What happens if the job turns out different
- How much experience the applicator has
- What the cure time is
- Whether the sealant suits the joint
How the visit works
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the job takes a few hours for most rooms, longer for large commercial floors for a typical job. For a job in Mitcham, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- The room is cleared along the joints so we can reach them.
- Old material is removed from the joint.
- Edges are cleaned and dried.
- A flexible sealant suited to the floor is applied.
- Finally, we check the work and talk you through aftercare.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Keep pets and children clear of the area while we work
- Tell us if parking is tricky
Getting a quote
For floor joint sealing in Mitcham, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
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Why act early in Mitcham
Dirt builds up in open joints and makes the floor look worn. A neat sealed joint is easier to clean and finishes the floor. In a flat in Mitcham, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Mitcham
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- Colour picked to suit the job
- ARBOMaster approved applicator
Read our cost guide and customer reviews.
How the job changes by surface
Tiled floors
A crack running along a grout line is often a sign of a missing movement joint. We rake out that line and seal it if it’s in the right place.
Skirting boards
If the skirting is painted, a paintable flexible sealant works well. Where water is involved, silicone is the better choice.
What floor joint sealing looks like in Mitcham
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and they do not all move the same way. That is why the skirting and threshold joints need a flexible seal.
For buildings such as St. Mark's Church, joints in its floors, skirtings and thresholds need resealing as they wear. Schools such as St Thomas of Canterbury Catholic Primary School are buildings too, and floor and threshold joints in busy corridors wear quickly and are best resealed early.
Mitcham is about 2 miles west of Thornton Heath, in Greater London. Every kind of property in Mitcham can book us for floor joint sealing, old or new, large or small. Every job comes with our one-year guarantee. We cover 764 towns and villages across Greater London, from the larger towns to small villages. London is on our list too, about 7 miles from Mitcham.
We cover every part of CR4, SW16 and SM4 for floor joint sealing. That includes homes and businesses on Kings Road, Baker Lane and Manor Road. If you’re just outside Mitcham, we cover Hackbridge (1 mile north), Eastfields (1 mile north), Colliers Wood (1 mile north-west), Merton Abbey (2 miles north-west) and Furzedown (2 miles north). We also work in nearby towns such as London (7 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north), St Pancras (9 miles north) and Shoreditch (9 miles north).
What’s near Mitcham
Typical jobs here are in homes near The Archbishop Lanfranc School, St Mark's Church of England Academy and The White Lion of Mortimer pub. The closest station to Mitcham is Mitcham Eastfields station, roughly 0.5 miles north of the centre. Nearby you’ll also find Wandle Industrial Museum (0.7 miles west) and Centrale Croydon (2.7 miles south-east). Open spaces near Mitcham include Duppas Hill and Cranmer Green.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Avoid caulk in bathrooms and kitchens
- Don’t slide heavy items over sealed joints
- Keep floor cleaning water to a minimum at the edges
- Keep heavy wheels off new concrete joints until cured
Silicone sealant isn’t made to take paint. If you plan to paint, we’ll use a paintable product.
Small gaps are quick to seal. Ignored, they fill with dirt and open further over time.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Towns and villages near Mitcham
What else we do in Mitcham
Questions from Mitcham
Is Mitcham in your area for floor joint sealing?
Yes, Mitcham is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Can you help a landlord with a rental near Mitcham Eastfields station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where do you work from?
We’re based in Crawley, and we work across South East England, London and Scotland.
Why does the gap under my skirting keep coming back?
Timber floors and skirting shrink and swell through the year. We close it with a flexible sealant that moves with the floor.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours, depending on the length of joint. We will give you a better idea when we quote.
How much does floor joint sealing cost in Mitcham?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email with a short description of the job.