Greater London · England

Commercial & hotel sealant in South Street, Greater London

Commercial sealant for South Street, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Repeated reseals that do not last
  • Split sealant where wet room floors meet walls
  • Whole floors of tired en suites

Book commercial sealant in South Street

Commercial sealant in South Street, done properly

Bigger commercial jobs in South Street begin with a site walk to agree the scope, the order and the working hours. You then get one clear quote for the whole job. We’re often asked to deal with split sealant where wet room floors meet walls and washroom sealant that looks dirty however often it’s cleaned, on office washrooms & kitchens, hotel bathrooms and rental portfolios.

In London, a commercial job often starts with access: loading bays, building rules and lifts. For a building in South Street, we agree timings and access before anything starts.

We stand behind the work with a 12-month guarantee, so you are covered after we have gone.

Place
South Street (TN16)
Wider area
Greater London
Guarantee
A year, on every job
Price
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

How the job changes by surface

Hotel bathrooms

We can plan around check-out and check-in times, with the order agreed with your team.

Welfare facilities

Failed sealant in welfare areas is a simple fix before an audit. Tell us your deadline and we will plan the work and cure time around it.

DIY sealant or a professional job?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

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.

Why deal with it now?

Refitting a washroom is a big, disruptive project. If the fittings are in good order, new sealant is often all it needs. We will tell you if we find anything that needs another trade. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in South Street, the repair is bigger than the sealant job would have been.

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

Why South Street clients choose us

  • Trusted Arbo and Everbuild sealants
  • We leave the area clean and tidy
  • 20+ years of sealant experience
  • A choice of colours where the product allows

Read our cost guide and customer reviews.

South Street: your questions answered

Do you cover South Street for commercial sealant?

Yes, South Street is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.

Is parking an issue for commercial sealant in South Street?

In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.

How much does commercial sealant cost in South Street?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.

Can you take on a whole building?

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

Is it worth trying it myself?

Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

What do you need from me for a quote?

Only a few details: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.

Can I choose the sealant colour?

In most cases you can choose. We’ll explain which colours are available and agree one before work begins.

Can you reseal hotel rooms while we stay open?

Yes. The order and timing are agreed with your team, and each room is handed back with a cure time.

What happens on the day

There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes as long as the scope needs, from one welfare room to a full building, including the tidy-up. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.

  1. We walk the site with you and agree the rooms, the order and the hours.
  2. Room by room, we protect the area and remove all the old sealant.
  3. We clean the joints, treat any mould and let them dry.
  4. Anti-fungal sanitary silicone goes into wet areas, with suitable sealants elsewhere.
  5. We check every room and give its cure time for housekeeping.

Before we arrive

  • Plan for the work area to be out of bounds to pets and children
  • Let us know about parking restrictions
  • Move anything stored near the joints

Ask for a quote

If you’re in South Street and need commercial sealant, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Get a quick quote

Read more

Landlords, agents and businesses in South Street

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

What commercial sealant looks like in South Street

London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed.

If you look after a church, hall or community building such as Church of St Mary the Virgin, halls and community kitchens see heavy use, and their sealant shows it. Managing a site like Charles Darwin School? Then sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.

South Street is about 4 miles north-east of Oxted, in Greater London. Across the TN16 area, we cover commercial sealant for homes and businesses. We cover 764 towns and villages across Greater London, from the larger towns to small villages. We also work in London, about 15 miles from South Street.

Every address in TN16 is covered for commercial sealant, from the main roads to the quietest streets. Nearby, we also carry out commercial sealant in Tatsfield (1 mile west), Force Green (2 miles south-east), Titsey (2 miles south-west), Westerham (2 miles south-east) and Moorhouse Bank (3 miles south). Larger places within reach include London (15 miles north-west), Stockwell (14 miles north-west), Orpington (6 miles north), Wimbledon (14 miles north-west), Kennington (15 miles north-west) and New Cross (13 miles north).

What’s near South Street

The closest station to South Street is Oxted station, roughly 3.7 miles south-west of the centre. Well-known places in the area include Tandridge Priory (3.2 miles south). Not far away are West Kent Golf Course nature reserve and Betsom's Hill.

Map of South Street © OpenStreetMap contributors

How we quote for commercial sealant

We don’t publish a price list. The quote depends on:

  • Whether old sealant or filler has to be cut out
  • How many areas need sealing
  • Any working-time requirements on site
  • The number and length of the joints

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

What we need to know

To help us quote quickly, please include:

  • The address or postcode of the job
  • The type of property
  • How many joints, rooms or windows are involved
  • The problem you’ve noticed

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.

Common problems we fix in South Street

Plenty of commercial bathrooms have no window at all, and where extraction is poor, damp hangs around. Mould then takes hold in the silicone.

Common reasons people contact us are:

  • Washroom sealant that looks dirty however often it’s cleaned
  • Leaks from showers into rooms or ceilings below
  • Silicone laid over old silicone by a previous contractor
  • Split sealant around staff kitchen worktops and sinks

Letting a property close to Oxted station? Then we can quote for one property or a whole portfolio of rentals.

Questions to ask before booking

  • Is the old sealant removed completely?
  • How much experience the applicator has
  • What insurance they hold
  • What happens if they find a problem under the old sealant

Choosing a sealant specialist

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