Greater London · England

Floor Joint Sealing in South Wimbledon

Floor joint sealing for South Wimbledon, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Perimeter joints in tiled floors filled with grout
  • Grout cracking in a straight line across a floor
  • Open joints around bathroom floor edges

Floor joint sealing in South Wimbledon

Floor joint sealing in South Wimbledon, done properly

A threshold joint has to cope with feet, movement and sometimes water. We use a flexible product that suits both floors so the joint stays neat. Common call-outs are for threshold joints that have opened or worn and gaps opening between the floor and skirting, across thresholds, skirting boards and commercial floors.

New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.

We stand behind the work with a one-year guarantee.

Where
South Wimbledon (SW19, SW20, SW17)
Wider area
Greater London
Guarantee
A year, on every job
Quote
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What happens on the day

There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the job takes a morning or an afternoon for most homes in most cases. In South Wimbledon, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.

  1. We look at the gap and the floor type and agree the right sealant.
  2. Whatever is in the joint now, whether caulk, grout or sealant, comes out.
  3. The joint is vacuumed clean, with backing fitted wherever depth matters.
  4. We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
  5. Finally we tool it smooth and explain when the floor can be used and cleaned.

Getting ready for the visit

  • Let us know if you’ve seen damp or leaks
  • Tell us about access, such as stairs, a lift or high-level joints
  • Try not to wet indoor joints just before the visit

Getting a quote

To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.

Ask for a quote

Read more

DIY sealant or a professional job?

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.

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.

How the job changes by surface

Concrete floor joints

We clean concrete joints out thoroughly before sealing, vacuuming them clean. We fit backing where needed.

Skirting boards

Skirting-to-floor joints are a regular job for us. We take out any cracked caulk before sealing so the new sealant bonds.

How we quote for floor joint sealing

The price is agreed before any work begins. It’s based on:

  • The number of rooms or windows
  • The number and length of the joints
  • The product the joint needs
  • How much old sealant there is and how hard it is to remove

Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.

What to tell us for a quote

To help us quote quickly, please include:

  • How many joints, rooms or windows are involved
  • Photos by email, if that’s easy
  • Any previous sealing or DIY work
  • Any access issues, like height or stairs

If you are in South Wimbledon and need floor joint sealing, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.

Landlord and commercial work in South Wimbledon

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

If you manage several properties in or around South Wimbledon, jobs at different addresses can be quoted together. Send us the addresses and the work at each.

What we cannot put right

Before you book, it’s worth knowing the limits too:

  • Floors that are uneven or need levelling
  • Movement too big for a sealant joint
  • Damaged concrete that needs breaking out and repairing

If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.

What we seal

  • Wet room & bathroom floors
  • Tiled floors
  • Commercial floors
  • Concrete floor joints
  • Thresholds
  • Skirting boards

When to call us in South Wimbledon

Caulk is the usual filler for skirting. In a joint that moves or gets wet, it splits, which is why so many skirting joints look broken.

It’s worth asking for a quote if you see:

  • Chipped and open joints in warehouse floors
  • Perimeter joints in tiled floors filled with grout
  • Grout cracking in a straight line across a floor
  • Floor edges that trap water and grime

For landlords with property near Wimbledon station, open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Comparing quotes

  • What the quote includes, VAT included or not
  • How the surfaces are prepared before sealing
  • When the joint can take water or movement
  • Whether all the old sealant comes out first

10 questions to ask before booking

FAQs for South Wimbledon

Can you help a landlord with a rental near Wimbledon station?

Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.

Can parking be tricky for a visit in South Wimbledon?

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 offer different sealant colours?

In most cases you can choose. We will explain which colours are available.

Do you use a paintable sealant?

It depends on the sealant, so let us know first. Joints that will be painted get a paintable product, and silicone elsewhere.

How long before the joint can take traffic?

That varies with the sealant and the room. We give you the times for walking, cleaning and traffic when we finish so you can plan.

Can new sealant go over the old?

No. The old sealant always comes out first, so the new joint bonds to clean surfaces.

How much does floor joint sealing cost in South Wimbledon?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.

Does someone need to be in?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

New homes and floors in South Wimbledon

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 look after a building such as Holy Trinity CofE Primary School, floor and threshold joints in busy corridors wear quickly and are best resealed early. As a London address, South Wimbledon can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

South Wimbledon is about 1 mile south-east of Wimbledon, in Greater London. Whether you are in the middle of South Wimbledon or further out, we cover floor joint sealing for every kind of property. South Wimbledon is one of 764 places in Greater London we cover for floor joint sealing. There’s also a page for London, roughly 7 miles from South Wimbledon.

Our applicators cover all of the SW19, SW20 and SW17 postcode area for floor joint sealing and the streets around it. We cover properties on Gap Road, Mina Road and York Road. If you’re just outside South Wimbledon, we cover Merton (1 mile south-east), Merton Abbey (1 mile south-east), Summerstown (1 mile north-east), Colliers Wood (1 mile east) and Tooting Bec (1 mile north-east). We also work in nearby towns such as London (7 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north-east) and Shoreditch (9 miles north-east).

Local landmarks in South Wimbledon

We work in homes and buildings around Wimbledon High School, Wibbas Down Inn and Willington School. South Wimbledon has its own railway station: Wimbledon station. Nearby you will also find Southside Wandsworth (2.4 miles north) and Wimbledon Museum (0.9 miles west). Green spaces nearby include Battersea Park Lake and Merton Park Green Walks.

Map of South Wimbledon © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job