Greater London · England

Floor Joint Sealing in Somers Town

We cover Somers Town for sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.

  • Rigid edge joints in tiled floors
  • Cracked grout where a tiled floor needs a movement joint
  • Chipped and open joints in warehouse floors

Book floor joint sealing in Somers Town

Why deal with it now?

Waiting until the next redecoration can mean a winter of draughts and dirt in the gaps. Sealing them now is a short job in most rooms. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Somers Town, the repair is bigger than a sealant job.

Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.

What you get with us

  • We agree the colour with you first
  • We’re fully insured
  • Anti-fungal silicone where joints get wet
  • Sealant colour chosen to suit

See what affects the cost or our reviews.

Floor joint sealing in Somers Town, done properly

The gap under a skirting board often opens as floors and walls move with the seasons. Caulk tends to crack there, so we close it with a flexible sealant instead. We work on tiled floors, thresholds and commercial floors, and the jobs we see most are failed joint filler in concrete floors and skirting caulk that keeps splitting.

From brand-new flats to converted terraces with new flooring, London has every kind of floor. Every joint between floor, skirting and threshold has to cope with some movement, in Somers Town as anywhere.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Somers Town (NW1W, NW1, W1T)
Region
Greater London
Cover
A year, on every job
Price
A clear price before we start
Phone
0345 464 0079
Last updated
26 October 2026

The process

We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for most rooms, longer for large commercial floors, and the area is left clean. In Somers Town, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.

  1. First we check the joint and the floor and agree which sealant suits it.
  2. We take out any old caulk, sealant or grout along the line.
  3. The joint is cleaned, vacuumed and backed where depth needs controlling.
  4. The sealant goes in, chosen for the floor and coloured to suit it.
  5. We tool the joint neatly and tell you when it can be walked on and cleaned.

Preparing for the visit

  • Mention any leaks or damp you’ve noticed
  • Let us know about parking restrictions
  • For business premises, tell us about site rules or sign-in

Ask for a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or drop us an email.

Ask for a quote

Related advice

What affects the cost of floor joint sealing

Jobs vary more than people expect. The main factors:

  • The size of the job
  • Which sealant suits the joint
  • The old material and how stubborn it is
  • The number of rooms or windows

We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.

What we need to know

Photos by email are helpful but not essential. Please mention:

  • If it’s domestic, commercial or a hotel
  • Whether it has been sealed before
  • What’s wrong with the joints now
  • How we’d reach the joints

Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or drop us an email with the details.

Floor joint sealing around Somers Town

Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. 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.

Rented homes near London Euston station change hands often, and open skirting and floor joints collect dirt and water, so seal them while the property is empty. As a London address, Somers Town can be tricky for parking: let us know about parking bays, permits or a driveway.

Somers Town is about 1 mile north-west of St Pancras, in Greater London. Somers Town gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Greater London, we cover 764 places, Somers Town among them.

Jobs for floor joint sealing in NW1W, NW1 and W1T works the same way as everywhere else we cover. If you need floor joint sealing at a property on Euston Road, Duke's Road and Phoenix Road or a nearby road, we can help. With the A400 and A501 close by, Somers Town is simple for us to get to for floor joint sealing. We also cover Euston (1 mile south), Kings Cross (1 mile east), Agar Town (1 mile north), Bloomsbury (1 mile south-east) and Fitzrovia (1 mile south-west). Further out, we also cover London (3 miles south-east), Kensington (4 miles south-west), Walthamstow (6 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).

What’s near Somers Town

Locally, jobs take us to homes and businesses close to Regent High School, Wellcome Collection and Lewis Cubitt Park and the streets around them. Nearby too are UCL School of Slavonic and East European Studies (under half a mile south) and Prince Arthur pub (within half a mile south-west). There’s a railway station in Somers Town itself: London Euston station. Well-known places in the area include Brunswick Centre (0.6 miles south-east) and Montfichet's Tower (1.8 miles south-east). Green spaces nearby include Barnsbury Wood and St. James's Park Lake.

Map of Somers Town © OpenStreetMap contributors

What the job involves on each surface

Thresholds

Thresholds between rooms meet two floors and often a door frame. We seal them with a flexible sealant that suits both sides.

Wet room and bathroom floors

Wet room floors rely on sound joints at the walls. We reseal it with a flexible silicone suited to wet areas and we’ll say if the problem looks like more than the joint.

DIY versus a professional finish

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.

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

Looking after it afterwards

Aftercare is simple, and it makes a real difference:

  • Vacuum floor joints regularly to stop grit building up
  • Don’t paint over silicone
  • Check skirting joints after the heating season
  • Cone off fresh joints until they’re ready

Lift furniture rather than sliding it over sealed joints. Dragging can tear the bead.

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

Common questions in Somers Town

I let a flat near London Euston station. Can you help?

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

Do you cover Somers Town for floor joint sealing?

Yes, Somers Town is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.

Which products do you use?

Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.

What information do you need?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

Do you seal warehouse floor joints?

Yes, from warehouses and units to offices and shops. We can plan around your opening times with out-of-hours work where needed.

Where is Mr Mastic based?

We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Is there any odour?

That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

What we’re called out for in Somers Town

New floors settle once they’re in use. The edges pull away from the skirting.

Most people get in touch after spotting something like this:

  • Floor edges that trap water and grime
  • Failed seals where bathroom floors meet baths and panels
  • Open gaps along the bottom of skirting boards
  • Perimeter joints in tiled floors filled with grout

For buildings such as St Mary's Church, joints in its floors, skirtings and thresholds need resealing as they wear.

Comparing quotes

  • What insurance they hold
  • What product goes in the joint
  • What the quote includes, VAT included or not
  • What happens if the job turns out different

How to choose a mastic man

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