Greater London · England

Mastic man in SE28

Our applicators cover all of the SE28 postcode district, which takes in Thamesmead, Plumstead and Crossness. Old sealant is always cut out completely, with a one-year guarantee.

Mastic and sealant across SE28

Bathroom resealing across SE28: what to expect

Across SE28, the joints we reseal are the ones that fail in any home: the long edge of the bath, the base of the shower tray, the back of the basin and the line along the worktop. Every joint is cut out, cleaned and left dry before it’s resealed. Typical jobs include a messy, uneven bead from a previous reseal and cracked, shrunken or lifting silicone, across sinks & splashbacks, kitchen worktops & upstands and shower trays & enclosures.

Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes two to three hours for a typical bath, depending on how much old sealant there is.

  1. We cover the area around the joints we are working on.
  2. Old sealant is sliced away and the residue removed.
  3. We treat any mould and let the joint dry properly.
  4. Any bath is filled with water, then we lay a bead of anti-fungal silicone in white, clear or a matching colour.
  5. The joint is finished neatly and we explain when it can get wet.

What affects the price in SE28

The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and send you a clear quote before work begins.

Why choose Mr Mastic

  • Old sealant always removed completely
  • White, clear, grey or coloured to suit, where the product allows
  • Colour agreed with you before any work starts
  • 180+ five-star Google reviews

Get a quote

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.

Around Thamesmead

Typical jobs here are in homes near Jubilee Primary School, Harris Garrard Academy and St Paul and the streets around them. The closest station to Thamesmead is Abbey Wood station, about 1 mile south. Well-known places in the area include Greenwich Borough Museum (1.7 miles south-west) and Gallions Reach Shopping Park (2 miles west). Not far away are Crossness Nature Reserve.

Bathroom resealing across SE28: local notes

Homes across SE28 range from older properties to new builds, with plenty of rented property in places like Plumstead, Thamesmead and Crossness. Bathroom resealing keeps bathrooms and kitchens watertight and looking cared for.

The South East is one of the drier parts of the UK, but outdoor sealant still needs a dry day and clean surfaces, so outside work in SE28 is planned around the forecast.

Thamesmead: Letting a property close to Abbey Wood station? Then mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets. Schools such as Jubilee Primary School are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s.

What sealant work can’t fix

A few problems are outside what sealant work can do:

  • A leaking waste, trap or valve
  • Tiles that have come away from the wall
  • Failed grout lines across the wall

Can I do it myself?

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.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Landlord and commercial work in SE28

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.

How the job changes by surface

Wet rooms

A wet room floor and its walls can move independently, so the corners need a flexible seal, not grout. Where grout in a corner has cracked, we can replace it with sealant.

Basins & vanity units

A vanity top has a joint along the wall and sometimes at the sides. If water gets in, the cabinet underneath can swell, so a neat, continuous bead matters.

Leave it or put it right?

Mould removers can fade the surface of a stained bead, but where mould is inside the silicone it normally comes back. Cutting it out and resealing with anti-fungal silicone is the fix that lasts.

What your quote should include

  • Is the old sealant removed completely?
  • How long to leave it before use
  • What insurance they hold
  • How long the guarantee is

Questions from SE28

Can you do several jobs on one visit?

Of course. Combining jobs makes good use of the visit.

Do you reseal kitchen worktops and sinks too?

Yes. Next to the sink we use a food-safe product where it’s needed.

Will there be a smell?

Possibly a little. Any smell clears as the sealant cures.

How long does a bath or shower reseal take?

A single bath or shower takes about a couple of hours, including cutting out the old sealant. A whole bathroom plus the kitchen may take most of the day.

Is it OK to put new sealant on top of the old bead?

No, and it’s one of the main reasons reseals fail. We cut out all of the old sealant, clean the joint and start again.

Do you cover SE28?

We do. SE28 is part of the area we cover.

How long does the new silicone need before I use the shower?

After around 24 hours in most cases. We will tell you the cure time for the product we used.

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