The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Washroom Sealing in Hockenden

Washroom sealing for Hockenden, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Panel joints letting water behind
  • Failed sealant behind washroom basins
  • Mould spotting along silicone joints
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Washroom sealing for Hockenden sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Washroom sealing in Hockenden

Facilities managers, contractors and building owners have used us for washroom sealing for over 20 years. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We are fully insured. Every resealed washroom carries our 12-month guarantee. If you’re dealing with users noticing mouldy joints and kitchen worktop joints that can’t be kept clean, we can put it right. Whoever orders the work in Hockenden, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.

In a London area such as Hockenden, commercial washrooms in offices, hotels and leisure buildings see constant use. Mouldy or split sealant at vanity tops, IPS panels and urinals is replaced with anti-mould sanitary silicone, in phases so some facilities stay open.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Hockenden (BR8)
Region
Greater London
Guarantee
12 months on every job
Quote
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

Building owners, agents and FMs in Hockenden

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Hockenden. Several sites can go on one quote, which keeps the paperwork simple.

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

When it isn’t the sealant

We check first that sealant really is the fix. It won’t put right:

  • A room that stays damp because ventilation isn’t working
  • Swollen or delaminated boards behind panels or vanity tops
  • Leaking pipes, traps, wastes or cisterns, which need a plumber

If you’re not sure, just phone 01277 525 020 or email the details over and we’ll give you a straight answer.

What we seal

  • Showers, trays and wet room floors
  • Accessible toilets and changing rooms
  • Urinals and WCs
  • Kitchens and tea points
  • IPS panels and cubicles
  • Vanity units and basins

General trades versus a specialist

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.

Hockenden: questions and answers

Does a hotel in Hockenden need to shut while its sealant is renewed?

Almost never. The work is phased so most rooms stay available. The plan is built around your bookings.

Can you work on a hospital site such as Queen Mary's Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

How do I request a quote?

The quote form is the simplest route, though you can also call 01277 525 020 or email drawings and photos. Include photos or drawings if you have them.

Which sealant will you use?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Will you come and look before quoting?

Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.

Will all the toilets be closed at once?

Only the area we are working in is closed. Rooms go back into use once the sealant has cured, then we move on.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

How the quote is worked out

These are the things that shape the price:

  • How much there is to seal
  • Whether old sealant has to be cut out first
  • Which sealant the job calls for
  • Access and working height

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

Before you send an enquiry

However big the job, these details speed things up:

  • Asbestos survey details if the building is older
  • Rough lengths or quantities, or drawings if you have them
  • Where the site is, with the postcode
  • A wide shot and a close-up of the area

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to phone 01277 525 020 or email the details over.

Keeping Hockenden washrooms open while we work

There are four care or nursing homes within about 2 miles of Hockenden. In care settings, wet rooms, assisted bathrooms and en suites rely on clean, sound sealant. Work is agreed with the manager, around residents’ routines. In London buildings, toilets and showers generally need to stay partly open, so we phase the work core by core or floor by floor with the building manager.

Office washrooms on sites such as Pembroke Business Centre, 0.8 miles north-east of Hockenden, are in use all working day, so resealing is phased to keep some open. For centre management at a site such as Nugent Retail Park (1.8 miles west of Hockenden), washroom work is planned around footfall. Toilets at colleges like Bird College, 2.8 miles to the north-west of Hockenden, take heavy use from students and staff alike.

Hockenden is about 2 miles north-east of Orpington, in Greater London. We send applicators to Hockenden for washrooms and wet areas, handled exactly as we handle every other area. Hockenden is one of 764 places we cover in Greater London. We also cover London, some 13 miles away.

If you need washroom sealing in BR8, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your building is just outside Hockenden, we cover Upper Ruxley (1 mile north-west), Stonehill Green (1 mile north-east), Ruxley (1 mile north-west), Puddledock (2 miles north-east) and Hextable (2 miles north-east). Bigger towns within reach include London (13 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), St Pancras (14 miles north-west), Shoreditch (13 miles north-west) and Walthamstow (15 miles north-west).

Near you in Hockenden

Around Hockenden, our work takes us to commercial buildings near Foots Cray Meadows and Orchards Academy and the streets around them. Hockenden’s nearest station is Swanley station, roughly 1 mile south-east of the centre. A little further out are London Borough of Bromley Museum (2.6 miles south-west) and Eynsford Castle (3.4 miles south-east). Green spaces nearby include The Warren and Summer Hill.

Map of Hockenden © OpenStreetMap contributors

On site: what to expect

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes between a morning and a week or so, set by the number of rooms and the phasing you need, and we clear our waste as we work. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Old sealant is stripped and the faces prepared.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

Before we start on site

  • Explain the parking and delivery arrangements
  • Agree which areas must stay open
  • Let us know about inductions and permits

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

Ask for a quote

Related advice

Aftercare for building managers

Once the work is signed off, a little attention goes a long way:

  • Keep extract fans working and vents clear
  • Inspect washroom sealant regularly
  • Don’t leave trays and floors sitting wet
  • Photograph and log failed joints across the estate

Where possible, have shower floors and trays squeegeed after busy periods. Standing water on a joint all day shortens its life.

In food areas, cleanability is something environmental health officers look at. Resealing sinks, worktops and splashbacks before an inspection is a simple step.

Accreditations

Trusted. Accredited. Insured.