Greater London · England

Herne Hill Floor Joint Sealing

Problem with your floor joints in Herne Hill? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Skirting that has pulled away from the floor
  • Concrete floor joints that have broken down
  • Open joints around bathroom floor edges

Floor joint sealing for Herne Hill homes and businesses

Floor joint sealing in Herne Hill, done properly

Across Herne Hill, we seal floor and skirting joints in homes and businesses. Each job starts with looking at the floor and the gap, because the right sealant depends on both. We work on skirting boards, wet room & bathroom floors and tiled floors, and the jobs we see most are rigid edge joints in tiled floors and chipped and open joints in warehouse floors.

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.

There’s a 12-month guarantee on every job.

Location
Herne Hill (SE22, SW2, SE24)
Region
Greater London
Cover
12 months on all our work
Price
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

How it works

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a morning or an afternoon for most homes. For a job in Herne Hill, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. First, the floor type, the gap and the traffic are checked.
  2. We remove what’s in the joint now.
  3. We vacuum out the joint and add backing where the depth needs setting.
  4. We apply the sealant in a colour that suits the floor.
  5. We tool it neatly and tell you when it can be walked on and cleaned.

Preparing for the visit

  • Mention if the joints have been sealed before
  • Try not to wet indoor joints just before the visit
  • Tell us about access, such as stairs, a lift or high-level joints

Getting a quote

Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.

Get a price

Read more

How to look after the new joints

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

  • Vacuum floor joints regularly to stop grit building up
  • Do not paint over silicone
  • Lift furniture rather than dragging it across joints
  • Avoid sloshing water against skirting

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

Concrete joints damaged by traffic get worse quickly. Sealing them early protects the edges and the surface smoother.

What happens if it’s left?

Leaving skirting gaps until the next decorating job lets dirt and draughts in. It’s a quick job to seal them now in most rooms. In a flat in Herne Hill, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

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 will go through it with you.

Why Herne Hill clients choose us

  • Fully insured
  • 4.9 on Google from 180+ five-star reviews
  • Tidy, careful work
  • Anti-fungal sanitary silicone in wet areas

Take a look at what affects the cost or what customers say.

Signs you need floor joint sealing in Herne Hill

Water and dirt collect in open floor joints. In kitchens and bathrooms, mop water gets into the gap and can reach the subfloor.

It’s worth asking for a quote if you see:

  • Perimeter joints in tiled floors filled with grout
  • Gaps between floors and kitchen plinths
  • Gaps opening between the floor and skirting
  • Open joints that fill with dirt

Letting a property close to North Dulwich station? Then gaps at skirtings and thresholds are worth sealing between tenancies.

Before booking anyone

  • Who turns up on the day
  • What guarantee comes with the work
  • How long to leave it before use
  • Whether they seal over old material or remove it

Our hiring checklist

What sealant work cannot fix

To be straight with you, there are a few things sealant won’t fix:

  • Damaged concrete that needs breaking out and repairing
  • Movement too big for a sealant joint
  • Floors that are uneven or need levelling

If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.

Where we work in Herne Hill

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

What the job involves on each surface

Skirting boards

Skirting gaps are one of the most common floor joints we seal. The old caulk is removed first.

Wet room and bathroom floors

Floor joints in bathrooms take water every day. We seal them with anti-fungal sanitary silicone to keep water out of the edges.

What affects the cost of floor joint sealing

There’s no set price list, because no two jobs are the same. The quote depends on:

  • Mould in or behind the old joints
  • Access and height
  • Whether old sealant or filler has to be cut out
  • The size of the job

Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.

What we need to know

To help us quote quickly, please include:

  • Whether it’s a home or a business
  • Roughly how big the job is
  • The address or postcode of the job
  • Pictures of the joints, sent by email

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.

Common questions in Herne Hill

Can you do floor joint sealing in Herne Hill?

Yes. Our work covers London and the South East, and Herne Hill is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.

Is parking an issue for floor joint sealing in Herne Hill?

It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.

Is it messy?

Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.

What sealant do you use?

Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.

How soon can the floor be mopped?

We give you a cure time for each joint. Light use comes first, cleaning and heavy traffic later, depending on the product.

Do I need to be at home?

We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.

Are you fully insured?

Yes. We’re fully insured.

What do you need from me for a quote?

Let us know what needs doing and where. If we need more, we’ll ask.

Floor joint sealing in Herne Hill: local notes

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. The joint at the skirting or threshold has to allow for that. Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent.

If you look after a building such as Judith Kerr Primary School, entrance and corridor floor joints take a lot of traffic. Herne Hill is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Herne Hill is about 3 miles south of London, in Greater London. If you need floor joint sealing in Herne Hill, please call 0345 464 0079 or send us an email for a quick quote. We cover Greater London from our Crawley base. Herne Hill is one of 764 places in Greater London where we work.

We work across SE22, SW2 and SE24 for floor joint sealing and the streets around it. If you need floor joint sealing at a property on Jelf Road, Dewey Lane and Talma Road or a nearby road, our applicators can take on the job. Being close to the A204 and A2214, Herne Hill is easy for our applicators to reach. Nearby, we also carry out floor joint sealing in Dulwich Village (1 mile south-east), East Dulwich (1 mile north-east), Dulwich (1 mile south-east), Denmark Hill (1 mile north) and Camberwell (1 mile north). Further out, we also cover London (3 miles north), City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles north-west), St Pancras (5 miles north) and Shoreditch (5 miles north).

What’s near Herne Hill

Around Herne Hill, our work takes us to homes and buildings near The Charter School, Half Moon pub and Belair Park. There’s a railway station in Herne Hill itself: North Dulwich station. Well-known places in the area include Surrey Quays Shopping Centre (3.5 miles north-east) and House of Dreams Museum (0.7 miles north-east). For a walk, there’s Battersea Park Lake and Knight's Hill.

Map of Herne Hill © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job