Greater London · England

Floor Joint Sealing in Feltham

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

  • Open joints that fill with dirt
  • Rigid edge joints in tiled floors
  • Gaps between floors and kitchen plinths

Trusted floor joint sealing in Feltham

About our floor joint sealing in Feltham

Floors move, and the joint where they meet a wall, skirting, threshold or another floor has to move with them. We seal skirting gaps, tiled floor movement joints and concrete floor joints. Typical jobs include open joints that fill with dirt and tiled floors with no room to move, across commercial floors, skirting boards and wet room & bathroom 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, in Feltham and everywhere else we cover.

Place
Feltham (TW14, TW13)
Wider area
Greater London
Guarantee
A year, on every job
Quote
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

Floor joint sealing around Feltham

Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent. Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal.

As a London address, Feltham can be tricky for parking: let us know about parking bays, permits or a driveway. If you look after a church, hall or community building such as Christ Church, joints in its floors, skirtings and thresholds need resealing as they wear. For site and facilities teams at buildings such as St Lawrence Catholic Primary School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up.

Feltham is about 6 miles south-west of Ealing, in Greater London. If you need floor joint sealing in Feltham, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Greater London from our Crawley base, Feltham included. Our Greater London coverage runs to 764 places, and Feltham is one of them. For nearby work, see our London page.

Our applicators cover all of TW14 and TW13 for floor joint sealing. Whether your property is on High Street, Railway Terrace and Sandycombe Road or a nearby road, our applicators can take on the job. Main roads around Feltham include the A244 and B377, which makes travel easy. If you’re just outside Feltham, we cover Bedfont (1 mile west), Hounslow (1 mile south-west), Hatton (1 mile north), Ashford Common (2 miles south-west) and Cranford (2 miles north). Further out, we also cover London (14 miles east), City of Westminster (12 miles east), Marylebone (12 miles north-east), Kensington (10 miles east), St Pancras (14 miles north-east) and Shoreditch (15 miles east).

Landmarks near Feltham

Around Feltham, our work takes us to homes and buildings near Hounslow Heath, Moon On The Square pub and Rivers Academy West London, among other places. Feltham has its own railway station: Feltham station. Other landmarks nearby include Hounslow Hospital (2.3 miles north-east) and Kempton Steam Museum (1.6 miles south). For a walk, there’s Richmond Hill and Pevensey Road Nature Reserve.

Map of Feltham © OpenStreetMap contributors

What happens if it’s left?

Waiting until the next redecoration can mean a winter of draughts and dirt in the gaps. Sealing them now is a short job. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble.

Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.

Why us?

  • One-year guarantee on every job
  • Fully insured
  • Colour picked to suit the job
  • Sanitary silicone with an anti-fungal additive in wet areas

Take a look at how sealant jobs are priced or our reviews.

Can I do it myself?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

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.

What happens on the day

When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a morning or an afternoon for most homes. In a London area like Feltham, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.

  1. We start by looking at the floor, the gap and the traffic, then choose the product.
  2. Old caulk, grout or sealant is removed from the joint.
  3. The joint is cleaned, vacuumed and backed where depth needs controlling.
  4. A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
  5. The joint is tooled to a neat finish and we tell you when it can take feet and a mop.

How to prepare

  • Let us know about stairs, lifts or work at height
  • Let us know about earlier repairs to the joints
  • Where the joints are inside, avoid wetting them before we arrive

How to get a quote

If you are in Feltham and need floor joint sealing, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Ask for a quote

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Aftercare tips

Simple care keeps the joints in good condition. We recommend:

  • Get cracks along tile grout lines looked at early
  • Do not paint over silicone
  • Walk round the room once a year and look at the edges
  • Keep caulk for dry, still joints only

Have a look at the joints once the heating season is over. If anything has opened, it’s easy to reseal early on.

Cracks along tile grout lines come back unless the movement is dealt with. A flexible joint added early helps protect the tiles themselves.

Feltham questions

Do you cover Feltham for floor joint sealing?

Yes. We work across London and the South East, and Feltham is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.

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

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

Do you use a paintable sealant?

For painted skirting, we use a flexible product that can be painted. Silicone will not take paint, so it’s kept for wet areas and unpainted joints.

Do you have insurance?

Yes. Full insurance covers our work.

Where do you work from?

We work from Crawley. Our applicators cover Feltham.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.

How soon can the floor be mopped?

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 I do it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

What the job involves on each surface

Tiled floors

Tiled floors need movement joints at edges and across large areas. We replace grout with flexible sealant along the right lines in a matching colour.

Skirting boards

Skirting-to-floor joints are a regular job for us. The old caulk is removed first.

How we quote for floor joint sealing

Call for a quick quote. What matters most is:

  • The product the joint needs
  • How easy the joints are to reach
  • The number of rooms or windows
  • The old material and how stubborn it is

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What we need to know

To help us quote quickly, let us know:

  • The address or postcode of the job
  • The type of property
  • How we’d reach the joints
  • What the problem is, such as mould, gaps, leaks or cracking

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job