Greater London · England

Commercial Sealant in East Dulwich

Sealant work for offices, hotels, washrooms and commercial buildings for homes and businesses in East Dulwich and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Sealant failing again soon after quick repairs
  • Leaking joints in shower rooms and changing areas
  • Mouldy bathrooms flagged at a tenancy check

Commercial sealant for East Dulwich homes and businesses

How to look after the new joints

Joint life depends on how it’s used and looked after. We suggest:

  • Report broken fans quickly
  • Add sealant to your planned maintenance checks
  • Use mild cleaners on sealant, not bleach or abrasives
  • Give housekeeping the cure time for every room

Include sealant in routine room inspections. Checking joints alongside other room checks catches failures before they leak.

It’s easier to plan a programme than to react to failures. Rooms can be scheduled around occupancy and staff, rather than closed at short notice.

Commercial sealant for homes and businesses in East Dulwich

In showers and washrooms we use anti-fungal sanitary silicone, with a food-safe sealant by kitchen sinks where needed. Products include Arbo and Everbuild sealants, applied by ARBOMaster approved applicators. We’re often asked to deal with large numbers of bathrooms needing the same work and leaking joints in shower rooms and changing areas, on office washrooms & kitchens, welfare facilities and student & care accommodation.

London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In East Dulwich, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.

Every job is covered by our one-year guarantee.

Place
East Dulwich (SE5, SE22, SE15)
Region
Greater London
Guarantee
One year on every job
Quotes
A clear price before work begins
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Landlord and commercial work in East Dulwich

From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.

Honest limits

Some problems need a builder, plumber or other trade rather than us:

  • Failed tanking or loose tiles behind the sealant
  • Assessing what fire stopping a building needs
  • A broken extractor fan behind the mould problem

If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.

What we seal

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

Commercial buildings in East Dulwich

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. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.

For buildings such as The Latter Rain Outpouring Revival Church, halls and community kitchens see heavy use, and their sealant shows it. If you look after a building such as Dog Kennel Hill School, sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.

East Dulwich is about 3 miles south of London, in Greater London. Our applicators cover commercial sealant for homeowners, landlords and businesses in East Dulwich and the surrounding area. Across Greater London, we cover 764 places, East Dulwich among them.

Our applicators cover all of the SE5, SE22 and SE15 postcode area for commercial sealant. That includes homes and businesses on Rye Lane, Wren Road and Adys Road. You’ll find East Dulwich on the A2214 and A2215, so it’s easy for us to get to. Close by, we work in Denmark Hill (1 mile north-west), Herne Hill (1 mile south-west), Dulwich Village (1 mile south), Camberwell (1 mile north) and Peckham (1 mile north-east). Larger places within reach include 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 (4 miles north).

Around East Dulwich

We work in homes and buildings around The Fox on the Hill pub, The Charter School East Dulwich and The Charter School, among other places. There’s a railway station in East Dulwich itself: East Dulwich station. Well-known places in the area include House of Dreams Museum (within half a mile south-east) and Surrey Quays Shopping Centre (2.8 miles north-east). Green spaces nearby include Knight's Hill and Centre for Wildlife Gardening.

Map of East Dulwich © OpenStreetMap contributors

Surface by surface

Rental portfolios

Between tenancies is a good time to reseal, ready for the next tenant.

Hotel bathrooms

In a hotel, every bathroom is used and cleaned daily, so joints are finished smooth and sealed with anti-fungal sanitary silicone.

When to call us in East Dulwich

In an accessible wet room, water spreads across the floor every use, so floor-to-wall joints take standing water. Any split there can let water through quickly.

Keep an eye out for these signs:

  • Whole floors of tired en suites
  • Water marks on ceilings under bathrooms
  • Sealant failing again soon after quick repairs
  • Tired sealant in let properties

If you let a flat or house near East Dulwich station, several rental properties can be resealed on one programme.

What your quote should include

  • Whether they’re fully insured
  • Whether you can choose the colour
  • How long to leave it before use
  • What happens if the job turns out different

Choosing a sealant specialist

How it works

On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. The work normally takes a few hours per area, with larger sites planned over several visits. In a London area like East Dulwich, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We walk the site with you and agree the rooms, the order and the hours.
  2. Every area is sheeted and the old silicone stripped out.
  3. Joints are cleaned, treated for mould and dried.
  4. Anti-fungal sanitary silicone goes into wet areas, with suitable sealants elsewhere.
  5. Rooms are checked and returned with a cure time so staff know when to use them.

How to prepare

  • Clear items away from the joints we are working on
  • Let us know if you’ve seen damp or leaks
  • For indoor joints, keep the area dry beforehand if you can

How to get a quote

For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.

Ask for a quote

Read more

Can I do it myself?

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

Your questions about commercial sealant in East Dulwich

Can you help a landlord with a rental near East Dulwich station?

Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.

Do you work in hotels near East Dulwich?

Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.

Is there a guarantee?

Yes. Every job comes with our 12-month guarantee.

Do you work in East Dulwich?

Yes. We are based in Crawley and work across South East England, London and Scotland, East Dulwich included.

Is out-of-hours working possible?

It can be arranged. We’ll confirm the working hours with your quote.

When can guests or staff use the shower again?

Around 24 hours is typical for sanitary silicone. Housekeeping get the cure time for each room.

Do you remove the old sealant?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.

Is it messy?

No. We protect the surfaces around the joints, and we tidy up before we go.

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