Greater London · England

Roundshaw Commercial Sealant

Problem with your washrooms, bathrooms and kitchens in Roundshaw? We cut out the old, prepare the joints and apply the right sealant.

  • Tired sealant in let properties
  • Tired sealant ahead of a health and safety audit
  • Leaking joints in shower rooms and changing areas

Trusted commercial sealant in Roundshaw

Commercial sealant in Roundshaw, done properly

Commercial work is planned around the building, not the other way round. We can work room by room, floor by floor or in batches, and early starts or out-of-hours working can be arranged where it helps. If you’re dealing with split sealant where wet room floors meet walls and tired sealant ahead of a health and safety audit, we can put it right, whatever the surface.

Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. For a building in Roundshaw, we agree timings and access before anything starts.

All our work is covered by our one-year guarantee.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Place
Roundshaw (SM6, CR8, CR0)
Region
Greater London
Guarantee
A year, on every job
Price
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

Why deal with it now?

In a building with rooms above rooms, a failed shower seal can soon show on a ceiling below. That means a second room out of use and a repair to pay for. Resealing first is the smaller job. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Roundshaw.

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.

Why book with us

  • Anti-fungal sanitary silicone in wet areas
  • White, clear, grey or another colour, product permitting
  • You choose the colour before work begins
  • Colour picked to suit the job

See our cost guide and our reviews.

Landlords, agents and businesses in Roundshaw

Housing providers, facilities teams and property managers book us too in Roundshaw and across Greater London. We can quote a run of properties together.

In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Common questions in Roundshaw

Do you work for landlords with property near Wallington station?

Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.

Is parking an issue for commercial sealant in Roundshaw?

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.

Do the sealants smell?

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

Do you provide RAMS?

We’re fully insured, and we’ll go through your site’s requirements with you. We will confirm what we can supply when we quote.

Do you take on large, multi-room jobs?

Yes. We’ll walk the site, agree the scope and the order, and you get one clear quote.

When can guests or staff use the shower again?

Most areas can be used after around 24 hours. Each room is handed back with the cure time for the product used.

Will the old sealant be removed?

Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.

How long does commercial sealant take?

It depends on the size of the job, but as a guide it takes a few hours per room, so whole buildings are phased. We will give you a better idea when we quote.

Commercial buildings in Roundshaw

London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.

Letting a property close to Wallington station? Then sealant work can be quoted for a single flat or a whole portfolio. For site and facilities teams at buildings such as Wallington Primary Academy, washroom and kitchen sealant can be programmed around term times or opening hours.

Roundshaw is about 2 miles south-west of Croydon, in Greater London. Wherever you are in the SM6 postcode area, we cover commercial sealant for homes and businesses. Roundshaw is one of 764 towns and villages in Greater London we cover. You can also see our page for London, roughly 10 miles from Roundshaw.

All of SM6, CR8 and CR0 is covered for commercial sealant. Local streets include Link Lane, Milton Road and Redwing Road, and we cover them all. If you are just outside Roundshaw, we cover Russell Hill (1 mile east), Bandonhill (1 mile north), Peaks Hill (1 mile south), Waddon (1 mile north-east) and Wallington (1 mile north-west). Larger places within reach include London (10 miles north), City of Westminster (11 miles north), Marylebone (11 miles north), Kensington (11 miles north), St Pancras (12 miles north) and Shoreditch (12 miles north).

What’s near Roundshaw

Locally, jobs take us to homes and businesses close to Wilson's School, Waddon Ponds and The John Fisher School and the streets around them. Roundshaw’s nearest station is Wallington station, roughly 0.9 miles north-west. A little further out are Purley War Memorial Hospital (1.2 miles south-east) and Croydon Airport Visitor Centre (0.6 miles east). For a walk, there’s Roundshaw Downs and Duppas Hill.

Map of Roundshaw © OpenStreetMap contributors

Do you need commercial sealant in Roundshaw?

A rushed reseal between guests rarely lasts. Sealing over old silicone, sealing wet joints or using the wrong product all lead to the same thing: another reseal before long.

Any of these means the joints need attention:

  • Washrooms that need sorting before an inspection
  • Repeated reseals that don’t last
  • Whole floors of tired en suites
  • Shower leaks reaching the floor below

If you look after a church, hall or community building such as St. Paul's, any kitchen and washrooms need the same sealant care as any other building.

What your quote should include

  • What happens if the job turns out different
  • How the colour is chosen
  • Whether the sealant suits the joint
  • The length of the guarantee

Choosing a sealant specialist

What we can’t put right

In fairness, there are a few things sealant won’t fix:

  • Assessing what fire stopping a building needs
  • Leaking pipework, valves or wastes (a plumber’s job)
  • Failed tanking or loose tiles behind the sealant

If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.

What we seal

  • Rental portfolios
  • Office washrooms & kitchens
  • Student & care accommodation
  • Hotel bathrooms
  • Retail & leisure sites
  • Welfare facilities

Can I do it myself?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

How the visit works

The work is kept neat and contained to the area we are working on, so you can get on with your day. The job generally takes a morning for a small washroom, and a planned programme for bigger sites, and we tell you how long to leave it before we go. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.

  1. The first visit is a look round the site to agree the scope.
  2. We agree when we will work, with early or out-of-hours slots where they can be arranged.
  3. Each area is protected and stripped of old sealant.
  4. Joints are dried, then resealed and tooled neatly.
  5. We let your team know the cure time for every area.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know about parking restrictions
  • Let us know about earlier repairs to the joints

How to get a quote

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.

Ask for a quote

Advice

Aftercare tips

No joint lasts for ever, but care makes a real difference. A few tips:

  • Schedule work around occupancy
  • Include the silicone on your room checklists
  • Encourage users to squeegee shower walls
  • Act on lifting sealant before it leaks

Keep the extraction running and maintained. In internal bathrooms, a weak or broken fan lets moisture linger, and that is what keeps mould away.

Watch for the warning signs: black spots in the silicone, corners lifting, staining on the ceiling below or a musty smell. Any of these means the joints need attention.

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