Greater London · England

Floor & skirting joints in Poplar, Greater London

Floor joint sealing in Poplar from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Cracked grout where a tiled floor needs a movement joint
  • Gaps between floors and kitchen plinths
  • Caulk that has cracked where the floor moves

Trusted floor joint sealing in Poplar

Floor joint sealing in Poplar

We seal floor joints in homes, offices and commercial buildings across Poplar. Each job starts with looking at the floor and the gap, because the right sealant depends on both. If you have concrete floor joints that have broken down and gaps at thresholds between rooms, we can put it right.

Much of London’s new housing is flats in larger developments. In a new development, snags are often reported through the developer or the managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.

A 12-month guarantee comes as standard, so you are not left on your own once the job is done.

Place
Poplar (E14, SE16, E22)
Region
Greater London
Guarantee
One year on every job
Price
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

How to look after the new joints

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

  • Check the sealant is paintable before decorating
  • Use a well-wrung mop rather than flooding the floor
  • Look at floor joints each spring
  • Act on grout cracks that run in a straight line

Have a look at the joints once the heating season is over. If anything has opened, it’s easy to reseal early on.

In wet areas, an open floor joint lets water reach the subfloor. Resealing early keeps it out.

The process

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take a morning or an afternoon for most homes. In Poplar, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.

  1. We clear the edges of the floor so the joints are easy to reach.
  2. Old material is removed from the joint.
  3. Edges are cleaned and dried.
  4. We apply a flexible sealant suited to the floor.
  5. We check the joints and explain the aftercare.

How to prepare

  • Keep children and pets away from the work area
  • On commercial sites, let us know about site rules
  • Let us know about stairs, lifts or work at height

Getting a quote

Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will take it from there.

Ask for a quote

Advice

Work for landlords, hotels and businesses

Landlords and agents in Poplar can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.

We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.

How we quote for floor joint sealing

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Working hours on commercial sites
  • Whether old sealant or filler has to be cut out
  • The number and length of the joints
  • Any mould that needs treating

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

Helping us quote

Photos by email are helpful but not essential. Try to tell us:

  • Pictures of the joints, sent by email
  • Where the property is
  • What the problem is, such as mould, gaps, leaks or cracking
  • Roughly how big the job is

If you’re in Poplar and need floor joint sealing, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.

FAQs for Poplar

Is parking an issue for floor joint sealing in Poplar?

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 Canary Wharf station?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Do you seal warehouse floor joints?

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

Will it make a mess?

Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.

Why not just use caulk?

Only on dry joints that do not move. Caulk cracks as the floor moves. A flexible sealant lasts longer there.

Can you seal over the old sealant?

No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.

Can sealant along the skirting be painted?

If you tell us beforehand, yes. We use a paintable flexible sealant on joints you plan to paint.

Do you come to Poplar?

Yes. From our base in Crawley, we cover South East England, London and all of Scotland, Poplar included.

When it is not the sealant

It helps to know what we cannot do:

  • Subfloor problems that need a flooring contractor
  • Damaged concrete that needs breaking out and repairing
  • A tiled floor that needs relaying

If in doubt, phone 0345 464 0079 or email us and we will say what we think.

What we seal

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

Why deal with it now?

Left open, concrete joints break down under traffic. Resealing it early protects the edges. In a flat in Poplar, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email.

Why book with us

  • Colour picked to suit the job
  • Anti-fungal sanitary silicone in wet areas
  • Arbo and Everbuild products
  • You choose the colour before work begins

See what affects the cost or our reviews.

Joints and finishes in Poplar homes

Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. 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. That is why the skirting and threshold joints need a flexible seal.

Community buildings like St Peter's Church are part of the picture too: joints in its floors, skirtings and thresholds need resealing as they wear. Managing a site like Tower Hamlets College? Then entrance and corridor floor joints take a lot of traffic. Poplar is in London, so parking needs planning: let us know about parking bays, permits or a driveway.

Poplar is about 2 miles south-west of Plaistow, in Greater London. Homes, rented property, offices and hotels in Poplar can book us for floor joint sealing, old or new, large or small. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, Poplar among them.

Our applicators cover all of E14, SE16 and E22 for floor joint sealing. Whether your property is on Market Way, Castor Lane and Dockyard Lane or a nearby road, our applicators can take on the job. You will find Poplar on the A102 and A1261, which makes it straightforward to reach. If you’re just outside Poplar, we cover London Docklands (1 mile south), Canary Wharf (1 mile south-west), Heron Quays (1 mile south-west), Coldharbour (1 mile south-east) and Blackwall (1 mile east). Larger places within reach include London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (3 miles north-west).

What’s near Poplar

In Poplar, that means homes and buildings near Bartlett Park, Langdon Park Secondary School and Our Lady and St Joseph Catholic Primary School. Poplar has its own railway station: Canary Wharf station. A little further out are Museum of the Book (0.8 miles north-west) and Poplar Hospital (0.6 miles north-east). Not far away are Lavender Pond and St. James's Park Lake.

Map of Poplar © OpenStreetMap contributors

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.

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