Greater London · England

Woolwich Commercial Sealant

Commercial sealant across Woolwich and nearby, with every bit of old sealant taken out first and a 12-month guarantee.

  • Washroom sealant that looks dirty however often it’s cleaned
  • Leaks from showers into rooms or ceilings below
  • Too many rooms to reseal without closing the building

Commercial sealant for Woolwich homes and businesses

Commercial sealant for homes and businesses in Woolwich

With over 20 years in sealant work, we’re a fully insured, ARBOMaster approved team. If your site needs RAMS or insurance details, tell us, and we will confirm what we can provide. We work on office washrooms & kitchens, hotel bathrooms and rental portfolios, and the jobs we see most are rental bathrooms that need resealing between tenants and split sealant around staff kitchen worktops and sinks.

Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in Woolwich needs to stay open, work can be planned outside normal hours.

All our work is covered by a one-year guarantee, wherever you are in Greater London.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Location
Woolwich (SE18, E16, SE7)
Wider area
Greater London
Cover
One year on every job
Price
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

How the visit works

Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours per area, with larger sites planned over several visits. For a job in Woolwich, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.

  1. We agree a programme with you: which rooms, in what order, at what times.
  2. We go through your site’s paperwork needs, such as RAMS, before work begins.
  3. Old sealant is cut out room by room and joints cleaned and treated.
  4. Anti-fungal sanitary silicone goes into wet areas, with suitable sealant elsewhere.
  5. Rooms are handed back in order, each with its cure time.

Before we arrive

  • Mention any tricky access
  • Try not to wet indoor joints just before the visit
  • Let us know about earlier repairs to the joints

Getting a quote

It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, phone 0345 464 0079 or drop us an email.

Get a quick quote

Advice

Should I try it myself first?

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Woolwich questions

Can parking be tricky for a visit in Woolwich?

Parking in Woolwich, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.

Can you do commercial sealant in Woolwich?

Yes, Woolwich is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.

Do you provide RAMS?

We’re fully insured, so start by telling us what your site asks for. We will confirm what we can supply when we quote.

Should I try DIY first?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

Do you offer different sealant colours?

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

Can the hotel stay open while you work?

Yes, in most cases. We agree a batch of rooms for each visit, working around check-out and check-in where possible.

How long do rooms need to be out of use?

Follow the cure time we give you, which is normally around 24 hours. A room-by-room programme keeps only a few rooms out at once.

Is it OK to seal over 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. Removing the old sealant completely is the only lasting way.

Work for landlords, hotels and businesses

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Aftercare tips

To keep the joints looking good and working properly:

  • Check extract fans are actually running
  • Get split or lifting joints looked at early
  • Ask cleaners to go gently on the silicone
  • Keep a record of which rooms were resealed and when

Make it easy for staff to flag a failing joint. Catching one split early can save a leak later.

It’s easier to plan a programme than to react to failures. Rooms can be scheduled around occupancy and staff, instead of rooms closing without warning.

Quotes for commercial sealant in Woolwich

Jobs vary more than people expect. The main factors:

  • Any working-time requirements on site
  • How much old sealant there is and how hard it is to remove
  • Whether the work is at height
  • How many rooms, windows or areas are involved

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.

What we need to know

Before you ask for a quote, have a think about:

  • If it’s domestic, commercial or a hotel
  • Any access issues, like height or stairs
  • A few pictures by email, if you can
  • Any previous sealing or DIY work

To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.

Workplaces and buildings in Woolwich

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

If you look after a building such as Mulgrave Primary School, washroom and kitchen sealant can be programmed around term times or opening hours. For landlords with property near Woolwich Dockyard station, sealant work can be quoted for a single flat or a whole portfolio.

Woolwich is about 6 miles south-east of Leyton, in Greater London. Our applicators cover commercial sealant for homes and businesses in Woolwich, as part of our work across Greater London. Our Greater London coverage runs to 764 places, Woolwich among them. For nearby work, see our London page (7 miles or so).

Every address in SE18, E16 and SE7 is within our area for commercial sealant, from the main roads to the quietest streets. Streets in the area include Market Street, Woolwich High Street and Beresford Square Market Place, all of which we cover. Neighbouring places we cover for commercial sealant include Plumstead (1 mile east), Charlton (1 mile west), New Charlton (1 mile west), Shooter's Hill (1 mile south) and Kidbrooke (2 miles south-west). We also work in nearby towns such as London (7 miles west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (8 miles west) and Shoreditch (7 miles north-west).

Landmarks near Woolwich

In Woolwich, that means homes and buildings near Woolwich Common, Oasis Academy Silvertown and Oasis Academy Silvertown. Woolwich has its own railway station: Woolwich Dockyard station. Well-known places in the area include Royal Artillery Museum (0.5 miles north-east) and British Hospital for Mothers and Babies (0.5 miles west). Green spaces nearby include Gilbert's Pit.

Map of Woolwich © OpenStreetMap contributors

Common problems we fix in Woolwich

Larger buildings move, and stud walls move more than solid ones. The sealant between walls, trays and fittings absorbs that strain until it tears.

People usually contact us after spotting one of these:

  • Rental bathrooms that need resealing between tenants
  • Joints that need doing before an inspection or audit
  • Repeated reseals that don’t last
  • Whole floors of tired en suites

As a London address, Woolwich can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

Questions to ask before you book

  • Are they insured?
  • Who does the work, and how experienced they are
  • The length of the guarantee
  • How the joint is cleaned and prepared

Our hiring checklist

Why act early in Woolwich

Refitting a washroom is a big, disruptive project. If the fittings are in good order, new sealant is often all it needs. If something else is wrong, we will say so. Converted houses in London often have a bathroom above someone else’s living room, 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 Woolwich.

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • We leave the area clean and tidy
  • Every job guaranteed for a year
  • Colour picked to suit the job
  • We’re fully insured

Read how sealant jobs are priced and our reviews.

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