Greater London · England

Commercial Sealant in Swiss Cottage

Problem with your washrooms, bathrooms and kitchens in Swiss Cottage? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.

  • Shower leaks reaching the floor below
  • Tired sealant ahead of a health and safety audit
  • Mouldy bathrooms flagged at a tenancy check

Commercial sealant for Swiss Cottage homes and businesses

Questions from Swiss Cottage

Can parking be tricky for a visit in Swiss Cottage?

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

Do you work in hotels near Swiss Cottage?

Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.

Can you work outside opening hours?

Early starts and out-of-hours work can be arranged. Let us know your hours when you get in touch.

What do you need from me for a quote?

A short description and the location. We will ask anything else we need to know.

Do you work for landlords and letting agents?

Yes. For several properties, we can plan the work as one programme.

Do you come to Swiss Cottage?

Yes. We work in Swiss Cottage and the rest of Greater London, as part of our work across South East England, London and Scotland. To book, ring 0345 464 0079 or drop us an email.

Are you an approved applicator?

Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.

Is it worth trying it myself?

Sometimes. 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.

About our commercial sealant in Swiss Cottage

Office kitchens, staff washrooms and welfare facilities need to be usable every working day. Early starts and out-of-hours work can be arranged to keep disruption down. You’re told when each area can be used again. We work on office washrooms & kitchens, retail & leisure sites and student & care accommodation, and the jobs we see most are mouldy washroom sealant that staff and guests notice and failed floor-level joints in accessible wet rooms.

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

Every job is covered by a 12-month guarantee.

Place
Swiss Cottage (NW3, NW8, NW6)
Region
Greater London
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Landlord and commercial work in Swiss Cottage

In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

We also work for property managers and facilities teams. We can quote a run of properties together.

DIY sealant or a professional job?

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

Commercial sealant around Swiss Cottage

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

Rented homes near South Hampstead station change hands often, and several rental properties can be resealed on one programme. Community buildings like Church of All Souls are part of the picture too: any kitchen and washrooms need the same sealant care as any other building.

Swiss Cottage is about 1 mile south of Hampstead, in Greater London. We provide commercial sealant to householders, landlords and businesses in Swiss Cottage, as part of our work across Greater London. Our area takes in 764 places across Greater London, large and small.

Here we cover the NW3, NW8 and NW6 postcode area for commercial sealant. Local streets include Avenue Road, Acacia Road and Harben Road. We also cover the places around Swiss Cottage: South Hampstead (1 mile north), St John's Wood (1 mile south), Haverstock (1 mile east), Belsize Park (1 mile east) and Primrose Hill (1 mile east). Larger places within reach include London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles south-east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).

Near you in Swiss Cottage

Around Swiss Cottage, our work takes us to homes and buildings near Cafe Med pub, Holy Trinity CofE Primary School and Primrose Hill and the streets around them. Nearby too are Cecil Sharp House (1.1 miles east) and St. Mary's Town and Country School (under half a mile north-east). There’s a railway station in Swiss Cottage itself: South Hampstead station. Well-known places in the area include Montfichet's Tower (3.7 miles south-east) and Isokon Gallery (0.8 miles north-east). The countryside around Swiss Cottage includes The Long Water and Primrose Hill.

Map of Swiss Cottage © OpenStreetMap contributors

When it is not the sealant

We won’t take on work that will not last, so these are the limits:

  • Water coming from plumbing rather than sealant
  • Assessing what fire stopping a building needs
  • A shower tray, bath or basin that is cracked or broken

If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.

Joints and surfaces we work on

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

Do you need commercial sealant in Swiss Cottage?

Heavy use means more movement: different weights, constant use and daily cleaning all work at the joint. A tray that isn’t fully supported soon tears its seal.

The most common problems we see are:

  • Failed joints in office kitchens and tea points
  • Mouldy bathrooms flagged at a tenancy check
  • Water marks on ceilings under bathrooms
  • Large numbers of bathrooms needing the same work

Swiss Cottage is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Questions to ask before you book

  • What the cure time is
  • What happens if the job turns out different
  • How long the guarantee is
  • Whether the sealant suits the joint

10 questions to ask before booking

How the job changes by surface

Welfare facilities

Busy staff showers wear sealant out quickly. We reseal with anti-fungal sanitary silicone, accessible showers included.

Office washrooms & kitchens

Long vanity tops have joints that hold water and grime. It’s cut out, cleaned and resealed in one neat line.

The process

Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours per room, so whole buildings are phased. For a job in Swiss Cottage, parking and access are the things to plan: 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. Each area is protected and the old sealant cut out completely.
  3. Joints are cleaned, treated for mould and dried.
  4. New sealant suited to each area is applied and tooled.
  5. Rooms are checked and returned with a cure time so staff know when to use them.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • Clear items away from the joints we’re working on
  • Let us know about parking restrictions

Getting a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.

Get a price

Advice

Aftercare tips

How long the joints last depends on use and care. Here’s what we suggest:

  • Report broken fans quickly
  • Include the silicone on your room checklists
  • Do not leave a failed joint until the next refurbishment
  • Tell cleaning staff when each room can be used

Each room is handed back with its cure time, normally around 24 hours. Pass it on to housekeeping or cleaners so the new sealant is not wetted or scrubbed too soon.

Signs to look for: mould, splits, peeling corners or water marks downstairs. When you see them, it’s time to plan a reseal.

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