Greater London · England
St James's Floor Joint Sealing
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints for householders, landlords and businesses in St James's. Fully insured, ARBOMaster approved and guaranteed for a year.
- Skirting that has pulled away from the floor
- Floor edges that trap water and grime
- Skirting caulk that keeps splitting
About our floor joint sealing in St James's
Concrete floors in warehouses and units have joints that take heavy wear. Each is resealed with a floor-joint product suited to what runs over it. We work on wet room & bathroom floors, skirting boards and concrete floor joints, and common reasons people get in touch are dirt and water collecting in open floor joints and failed joint filler in concrete floors.
London homes range from new-build flats to period conversions with new floors laid over old boards. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement.
Big or small, it’s backed by our 12-month guarantee in St James's and across Greater London.
- Location
- St James's (W1F, W1D, W1J)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
New homes and floors in St James's
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 snags may need reporting through the developer or the managing agent.
For site and facilities teams at buildings such as Soho Parish CofE Primary School, entrance and corridor floor joints take a lot of traffic. If you let a flat or house near London Charing Cross station, open skirting and floor joints collect dirt and water, so seal them while the property is empty.
St James's is about 1 mile south-east of City of Westminster, in Greater London. Every kind of property in St James's is covered for floor joint sealing, old or new, large or small. Every job comes with our one-year guarantee. Our Greater London coverage runs to 764 places, and St James's is one of them.
All of W1F, W1D and W1J is covered for floor joint sealing, from the main roads to the quietest streets. Whether your property is on Duck Lane, Bruton Lane and Bridle Lane or a nearby road, our applicators can take on the job. St James's sits on or near the A4 and A400, which makes travel easy. Other places close to St James's include Chinatown (1 mile north), Charing Cross (1 mile east), Soho (1 mile north), West End (1 mile north-east) and Burlington Estate (1 mile west). Within a short drive, we also cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles east) and Hampstead (4 miles north-west).
Around St James's
Typical jobs here are in homes near LITE Regal International School, Tom Cribb pub and London Library. Also close by are Harris Westminster Sixth Form (0.6 miles south) and St Anne's Churchyard (under half a mile north). There’s a railway station in St James's itself: London Charing Cross station. Other landmarks nearby include The Museum of Practical Geology (within half a mile north-west) and Montfichet's Tower (1.4 miles east). The countryside around St James's includes St. James's Park Lake and Ludgate Hill.
Signs you need floor joint sealing in St James's
Concrete floor joints break down when traffic runs over open or failed joints. Pallet trucks and trolleys knock the edges away and the joint gets wider.
Any of these means the joints need attention:
- Gaps opening between the floor and skirting
- Skirting caulk that keeps splitting
- Worn sealant at door thresholds
- Failed joint filler in concrete floors
Community buildings like St James’s Church are part of the picture too: floor and skirting joints in halls and kitchens wear like any others.
Comparing quotes
- What preparation is included
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
Surface by surface
Concrete floor joints
Sawn joints in concrete floors control where it cracks. They’re resealed with a product chosen for what runs over them.
Wet room and bathroom floors
Bathroom floor edges get wet at every clean. A neat silicone joint keeps it out.
Places near St James's
Other services in St James's
What affects the cost of floor joint sealing
The price is agreed before any work begins. It takes into account:
- The size of the job
- The type of sealant required
- Working hours on commercial sites
- Whether there’s mould to deal with
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- How we’d reach the joints
- Any previous sealing or DIY work
- Roughly how big the job is
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What sealant work can’t fix
We will not take on work that will not last, so here’s what sealant cannot put right:
- Tiles that have lifted or broken
- Concrete repairs beyond the joint
- Movement too big for a sealant joint
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Tiled floors
- Thresholds
- Commercial floors
- Concrete floor joints
- Skirting boards
- Wet room & bathroom floors
St James's questions
Is parking a problem for a job in St James's?
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.
I let a flat near London Charing Cross station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Where are you based?
We are based in Crawley, and we work across South East England, London and Scotland.
What causes gaps between the floor and skirting?
Floors shrink and settle, especially in the first year or two and through the heating season. Caulk tends to crack; a flexible sealant does not.
Will I be able to paint over the new joint?
Where the skirting will be painted, we can use a flexible sealant that takes paint. Silicone is not made to be painted, so we use it where the joint stays unpainted.
Can you seal where the floor meets the bath panel?
Yes. Floor edges in bathrooms and kitchens get wet at every clean, so a flexible silicone is the right choice.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you work on commercial floors?
Yes, from warehouses and units to offices and shops. Work can be planned around your hours, and out-of-hours work can be arranged.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Do not paint over silicone
- Sweep along the edges of the floor
- Get cracks along tile grout lines looked at early
- Use a well-wrung mop rather than flooding the floor
Check the joints after the first winter. If anything has opened, it’s easy to reseal early on.
Concrete joints damaged by traffic get worse quickly. Sealing them early protects the edges.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours, depending on the length of joint. For a job in St James's, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We clear the edges of the floor so the joints are easy to reach.
- We take out the cracked caulk, grout or old sealant.
- Edges are cleaned and dried.
- We apply a flexible sealant suited to the floor.
- We check the joints and explain the aftercare.
Preparing for the visit
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
Getting a quote
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.