Greater London · England
Floor & skirting joints in St Giles, Greater London
Our applicators work in St Giles on sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Grout cracking in a straight line across a floor
- Perimeter joints in tiled floors filled with grout
- Open joints around bathroom floor edges
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
How we handle floor joint sealing in St Giles
Wet-area floor joints keep water out of the gap behind skirting and plinths. A flexible silicone seal keeps it out so water and dirt can’t get in. We work on commercial floors, concrete floor joints and thresholds, and people most often call us about skirting caulk that keeps splitting and tiled floors with no room to move.
London homes range from new-build flats to period conversions with new floors laid over old boards. Every joint between floor, skirting and threshold has to cope with some movement.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- St Giles (W1F, W1D, W1T)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near St Giles
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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 work begins. Most jobs take a morning or an afternoon for most homes. In a London area like St Giles, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We start by checking the floor, the joint and what traffic it takes.
- We remove what’s in the joint now.
- We vacuum out the joint and add backing where the depth needs setting.
- We apply the sealant in a colour that suits the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Before we arrive
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Get a quote
Every job is quoted individually. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.
Advice
Why deal with it now?
Water that gets past a floor joint can damage the floor beneath. Sealing them now keeps the problem at the surface. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in St Giles, the repair is bigger than the sealant job would have been.
Doing several joints on one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- Fully insured
- Over 20 years’ experience
- Old sealant always removed completely
- Sealant colour chosen to suit
Read how sealant jobs are priced and our reviews.
Questions from St Giles
Can parking be tricky for a visit in St Giles?
Parking in St Giles, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you do floor joint sealing in St Giles?
Yes. Our work covers London and the South East, and St Giles is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Is caulk good enough for skirting?
Caulk works on still, dry joints, but it splits where the joint moves or gets wet. We use a flexible sealant for most skirting and floor joints.
Do you seal kitchen plinths to the floor?
Yes. These joints get wet every time the floor is cleaned, so a flexible silicone is the right choice.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Is there any odour?
There can be a smell while the sealant cures. Opening a window helps.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What we’re called out for in St Giles
Wheels crossing an unfilled concrete joint chip its edges. Pallet trucks and trolleys knock the edges away.
Look out for these signs:
- Gaps at thresholds between rooms
- Open joints that fill with dirt
- Caulk that has cracked where the floor moves
- Cracked grout where a tiled floor needs a movement joint
St Giles 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
- Whether they’re fully insured
- Which sealant they’ll use, and why
- How hidden problems are handled
- Who does the work, and how experienced they are
Quotes for floor joint sealing in St Giles
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How easy the joints are to reach
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Helping us quote
What to tell us when you ask for a quote:
- A few pictures by email, if you can
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
Want a quote for floor joint sealing? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before work begins.
Floor joint sealing around St Giles
Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and they don’t all move the same way. That is why the skirting and threshold joints need a flexible seal. Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent.
Schools such as St Josephs Catholic Primary School are buildings too, and entrance and corridor floor joints take a lot of traffic. For buildings such as Soho Baptist Chapel, joints in its floors, skirtings and thresholds need resealing as they wear.
St Giles is about 1 mile east of City of Westminster, in Greater London. If you need floor joint sealing in St Giles, please phone 0345 464 0079 or email us for a quick quote. We cover Greater London from our Crawley base. Our Greater London coverage runs to 764 places, and St Giles is one of them.
Work in W1F, W1D and W1T is quoted and booked the same way as anywhere else. You’ll find streets such as Duck Lane, Drury Lane and Bridle Lane. Main roads around St Giles include the A301 and A400, so getting to you is simple. We also cover Seven Dials (1 mile south), West End (1 mile south-west), Soho (1 mile south-west), Covent Garden (1 mile south-east) and Chinatown (1 mile south-west). Within a short drive, we also cover Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Near you in St Giles
In St Giles, that means homes and buildings near LSE Shaw Library, The Crown pub and Mercers' School, among other places. Other local landmarks include London Nautical School (1 mile south-east) and St Anne's Churchyard (under half a mile south-west). St Giles has its own railway station: Tottenham Court Road station. Nearby you will also find Montfichet's Tower (1.1 miles east) and Kingly Court (0.5 miles west). Open spaces near St Giles include Barnsbury Wood and Ludgate Hill.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Keep dirt out of the joints
- Don’t slide heavy items over sealed joints
- Do not paint over silicone
- Avoid sloshing water against skirting
Silicone sealant is not made to take paint. If you plan to paint, we will use a paintable product.
A tiled floor that cracks along a line will keep cracking until it can move. A flexible joint added early helps protect the tiles themselves.