Greater London · England

Floor & skirting joints in Southgate, Greater London

Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints in Southgate, with a 12-month guarantee on every job. Ask us for a quote.

  • Dirt and water collecting in open floor joints
  • Cracked caulk along skirting in bathrooms and kitchens
  • Perimeter joints in tiled floors filled with grout

Book floor joint sealing in Southgate

What floor joint sealing looks like in Southgate

Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. Across Greater London, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and they do not all move the same way. That’s why the skirting and threshold joints need a flexible seal.

Southgate is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For buildings such as Christ Church Southgate Parish Church, joints in its floors, skirtings and thresholds need resealing as they wear.

Southgate is about 3 miles south-east of Barnet, in Greater London. If you need floor joint sealing in Southgate, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base. Across Greater London, we cover 764 places, Southgate among them. London is on our list too, about 9 miles from Southgate.

Jobs for floor joint sealing in N14, N11, N21 and N13 is quoted and booked the same way as anywhere else. Floor joint sealing is available to properties on High Street, Station Road and Blagden's Close. Main roads around Southgate include the A111 and A1004. Neighbouring places we cover for floor joint sealing include Osidge (1 mile north-west), Brunswick Park (1 mile west), Arnos Grove (1 mile south), New Southgate (1 mile south) and Oakwood (1 mile north). We also work in nearby towns such as London (9 miles south), City of Westminster (8 miles south), Marylebone (8 miles south), Kensington (9 miles south), St Pancras (7 miles south) and Shoreditch (7 miles south).

Around Southgate

We work in homes and buildings around The New Crown pub, Grovelands Park and Ashmole Academy. Southgate’s nearest station is New Southgate station, roughly 1 mile south-west. Well-known places in the area include Grand Arcade (2.1 miles south-west) and Greentrees Hospital (1.9 miles south-east). Not far away are Highgate Hill and Barfield Allotments Nature Park.

Map of Southgate © OpenStreetMap contributors

Floor joint sealing for homes and businesses in Southgate

Large tiled floors, and those over underfloor heating, often need movement joints. Where one is needed, we rake out the grout along the right line and replace it with flexible sealant coloured to suit the grout. We work on concrete floor joints, thresholds and wet room & bathroom floors, and common reasons people get in touch are failed joint filler in concrete floors and worn sealant at door thresholds.

Across London, commercial floors have movement joints that break down under heavy foot traffic, and new homes need their plot mastic finished properly before handover.

Big or small, it’s backed by our 12-month guarantee in Southgate and across Greater London.

Location
Southgate (N14, N11, N21, N13)
Wider area
Greater London
Guarantee
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

What the job involves on each surface

Concrete floor joints

Hard wheels break down the edges of open joints. A sealed joint protects the edges.

Thresholds

Where a tiled floor meets timber or carpet, the joint takes movement from both sides. We bridge them with a flexible bead.

Quotes for floor joint sealing in Southgate

We quote each job individually. These are the things that affect it:

  • Whether there’s mould to deal with
  • The old material and how stubborn it is
  • How many rooms, windows or areas are involved
  • The amount of work

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

Asking for a quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • The rough size of the job
  • If someone has resealed it before
  • What the problem is, such as mould, gaps, leaks or cracking
  • Access, such as stairs, a lift or height

Want a quote for floor joint sealing? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

When it is not the sealant

We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:

  • Floors that are uneven or need levelling
  • Large cracks that need a surveyor
  • Water getting under the tiles from elsewhere

Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.

Joints and surfaces we work on

  • Tiled floors
  • Thresholds
  • Concrete floor joints
  • Commercial floors
  • Skirting boards
  • Wet room & bathroom floors

How it works

We work through the job in order: protect, prepare, seal, tidy. Typically it takes a morning or an afternoon for most homes, and the area is left clean. In Southgate, 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. We clean and vacuum the joint and fit backing where the depth needs setting.
  4. We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
  5. The joint is tooled to a neat finish and we tell you when it can take feet and a mop.

Getting ready for the visit

  • For indoor joints, keep the area dry beforehand if you can
  • Mention any leaks or damp you’ve noticed
  • Mention any parking rules near the property

How to get a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.

Get a quick quote

Related advice

How to look after the new joints

So the new joints stay in good condition:

  • Have a cracking tiled floor checked before tiles break
  • Don’t slide heavy items over sealed joints
  • Walk round the room once a year and look at the edges
  • Avoid sloshing water against skirting

Lift furniture rather than sliding it over sealed joints. Sharp edges can cut the sealant especially in the first few days.

Sealing a gap while it’s small is a quick job. Ignored, they fill with dirt and open further.

Landlords, agents and businesses in Southgate

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured for the work.

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.

FAQs for Southgate

Can parking be tricky for a visit in Southgate?

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.

Can you help a landlord with a rental near New Southgate station?

Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures, and ventilation helps.

What does floor joint sealing cost?

Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.

Do you offer different sealant colours?

Most of the time, yes. We’ll explain which colours are available.

Do you come to Southgate?

Yes. We are based in Crawley and work across South East England, London and Scotland.

Why does the gap under my skirting keep coming back?

Movement from drying timber and settling floors opens the gap. Rigid fillers split, so we use a flexible sealant.

Will it make a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Common problems we fix in Southgate

A new floor or screed shrinks and settles as it dries. Gaps at the edges appear in the first year or so, and rigid fillers crack.

These are the problems we’re asked about most:

  • Failed joint filler in concrete floors
  • Skirting caulk that keeps splitting
  • Failed seals where bathroom floors meet baths and panels
  • Rigid edge joints in tiled floors

Letting a property close to New Southgate station? Then open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Comparing quotes

  • Who turns up on the day
  • How hidden problems are handled
  • Is the old sealant removed completely?
  • What guarantee comes with the work

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