Greater London · England
Colliers Wood Floor Joint Sealing
Floor joint sealing in Colliers Wood from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Concrete floor joints that have broken down
- Threshold joints that have opened or worn
- Failed seals where bathroom floors meet baths and panels
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
A careful DIYer can reseal a simple joint, 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.
Floor joint sealing for homes and businesses in Colliers Wood
The gap under a skirting board often opens as floors and walls move with the seasons. Decorators’ caulk generally cracks where there’s movement, so we use a flexible sealant that moves with the floor. We are often asked to deal with gaps opening between the floor and skirting and open joints that fill with dirt, on thresholds, tiled floors and wet room & bathroom floors.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, while new homes need a neat, sound finish around frames, baths and kitchens before handover.
Your job is guaranteed for a year, as with all our work.
- Where
- Colliers Wood (SW17, SW19, CR4)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Colliers Wood
What else we do in Colliers Wood
Why act early in Colliers Wood
Water that gets past a floor joint can damage the floor beneath. Sealing them now keeps the problem at the surface. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in Colliers Wood
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or another colour, product permitting
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
Take a look at what affects the cost and what customers say.
The process
On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. Most jobs take a few hours, depending on the length of joint. In Colliers Wood, 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.
- The room is cleared along the joints so we can reach them.
- We take out the cracked caulk, grout or old sealant.
- We clean and dry the edges of the joint.
- We apply a flexible sealant suited to the floor.
- Finally, we check the work and talk you through aftercare.
How to prepare
- Tell us about any water getting in
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
Getting a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
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FAQs for Colliers Wood
Is parking a problem for a job in Colliers Wood?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Do you cover Colliers Wood for floor joint sealing?
Yes, Colliers Wood is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Why does the gap under my skirting keep coming back?
Timber floors and skirting shrink and swell through the year. A flexible sealant closes the gap without cracking like caulk.
Do you work on commercial floors?
Yes. Concrete floor joints in warehouses and units are part of our work. We will talk through the traffic and choose a sealant suited to it.
Why not just use caulk?
Not where the floor moves or gets wet. It splits once the floor shifts, so the gap comes back. A flexible sealant is the better choice.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do you seal kitchen plinths to the floor?
Yes. Wet-area floor joints are sealed with a flexible, water-resistant silicone to keep mop water out.
Common problems we fix in Colliers Wood
Water and dirt collect in open floor joints. In wet areas, water runs into the gap at every clean.
People normally contact us when they notice one of these:
- Skirting that has pulled away from the floor
- Skirting caulk that keeps splitting
- Perimeter joints in tiled floors filled with grout
- Gaps at thresholds between rooms
Colliers Wood is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Before you book anyone
- Are they insured?
- What preparation is included
- How much experience the applicator has
- What happens if they find a problem under the old sealant
Floor joint sealing around Colliers Wood
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. That is why the skirting and threshold joints need a flexible seal. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.
For site and facilities teams at buildings such as Sellincourt Primary School, entrance and corridor floor joints take a lot of traffic. Rented homes near Tooting station change hands often, and gaps at skirtings and thresholds are worth sealing between tenancies.
Colliers Wood is about 5 miles south of Brompton, in Greater London. From the centre of Colliers Wood to the outskirts, we cover floor joint sealing for every kind of property, from flats and houses to offices and hotels. Colliers Wood is one of 764 places in Greater London where we work for floor joint sealing. We also work in London, around 6 miles away.
Here we cover the SW17, SW19 and CR4 postcode area for floor joint sealing. That includes homes and businesses on Acre Road, Boyd Road and Park Road and the roads around them. Nearby, we also carry out floor joint sealing in Tooting (1 mile north), Tooting Bec (1 mile north), Merton Abbey (1 mile south-west), Furzedown (1 mile north-east) and Eastfields (1 mile south-east). Further out, we also cover London (6 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north) and Shoreditch (8 miles north-east).
Landmarks near Colliers Wood
Locally, jobs take us to homes and businesses close to Figge's Marsh, Ensham School and The Royal Standard pub, among other places. Colliers Wood has its own railway station: Tooting station. A little further out are Grove Hospital (0.6 miles north) and Wandle Industrial Museum (1.2 miles south). The countryside around Colliers Wood includes Henman Hill and Myrna Close.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Leaks from a failed tanking system
- Loose, hollow or cracked tiles, which need a tiler
- Large cracks that need a surveyor
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Thresholds
- Concrete floor joints
- Skirting boards
- Commercial floors
- Tiled floors
- Wet room & bathroom floors
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
If you manage several properties in or around Colliers Wood, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Keep floor cleaning water to a minimum at the edges
- Have a cracking tiled floor checked before tiles break
- Check skirting joints after the heating season
- Ask before painting over a sealed joint
Check the joints after the first winter. Small gaps at the ends can be touched up early on.
Sealing a gap while it’s small is a quick job. Left alone, they collect dirt and widen over time.