The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Commercial washroom and wet-area sealing in Kent Street, West Sussex

Work needed on a washroom in Kent Street? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Panel joints letting water behind
  • Sealant lifting along a tray edge
  • Sealant stained black around basins and showers
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
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing in Kent Street

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Signs you need washroom sealing in Kent Street

Cubicle panels, IPS panels and vanity units flex when people lean on them or doors are slammed and trays shift slightly with each user. If the joint wasn’t laid to take that movement, it tears or peels away.

Most enquiries start with one or more of the following:

  • Shower tray joints that have opened up
  • Discoloured joints around urinals and WC pans
  • Mould spotting along silicone joints
  • Open joints along basins and vanity units

On an industrial estate such as Oakendene Industrial Estate, 0.8 miles to the north of Kent Street, staff toilets, showers and canteens are where sanitary sealant takes the most wear.

Questions to ask before you book

  • Their pre-qualification and accreditations
  • Will RAMS and insurance details be available?
  • What level of public liability insurance do they hold?
  • Which product they’ll use, and why it suits the joint

How to choose a sealant contractor

Washroom sealing in Kent Street, done properly

We reseal washrooms and wet areas in offices, hotels, schools, universities, gyms, healthcare buildings and care homes, along with staff kitchens and tea points. Product and method follow how hard each area is used and cleaned. If you have shower tray joints that have opened up and a new bead over an old one coming away, we can put it right, on kitchens and tea points, urinals and WCs and accessible toilets and changing rooms alike. For commercial sealant work in Kent Street, you deal with one contact from quote to sign-off, whether it’s one building or several.

Farm shops, cafés and venues in converted rural buildings around places like Kent Street have busy toilets and kitchens. We plan the work around bookings and opening times.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Kent Street (RH13)
Region
West Sussex
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026

Owners, agents and contractors

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Kent Street can sit alongside others in a wider programme.

Keeping Kent Street washrooms open while we work

Kent Street lies roughly 37 miles out from central London. Business park offices have washrooms in daily use by staff, so we phase work to keep some facilities open.

For a site such as The Dene Hospital, 3.8 miles east of Kent Street, sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Kent Street is about 5 miles west of Burgess Hill, in West Sussex. Commercial clients in Kent Street can call on us for washrooms and wet areas, as part of our coverage of West Sussex. Across West Sussex, 373 places are covered, including Kent Street. For work in that direction, see our Brighton page (11 miles or so).

We take on washrooms and wet areas across the RH13 postcode area, for business premises of every kind. Just outside Kent Street, we also work in Wineham (1 mile south-east), Cowfold (1 mile north-west), Twineham Green (2 miles east), Shermanbury (2 miles south-west) and Twineham (2 miles south-east). Nearby towns on our patch include Crawley (10 miles north), Horsham (7 miles north-west), Worthing (12 miles south-west), Haywards Heath (7 miles east), Burgess Hill (5 miles east) and East Grinstead (15 miles north-east).

Near you in Kent Street

Other landmarks nearby include The Dene Hospital (3.8 miles east). Open spaces near Kent Street include Knepp Wildland.

Map of Kent Street © OpenStreetMap contributors

Honest limits

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Leaks through tanking or membranes below the finishes
  • Fittings that move too much to hold a bead
  • Leaking pipes, traps, wastes or cisterns, which need a plumber

Not sure which it is? You can call the office on 01277 525 020 or use the quote form and we will tell you honestly before you book.

Where we work in Kent Street

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

Our process

Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. Smaller jobs around Kent Street can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. Every room is surveyed and the failed joints listed.
  2. You get a fixed quote with the phasing plan.
  3. The whole of the old bead is removed.
  4. Joints are degreased and dried.
  5. New anti-mould sealant goes in and is tooled neat.
  6. Rooms reopen after the cure time.

Preparing the site

  • For older buildings, check the asbestos register before work
  • Explain the parking and delivery arrangements
  • Let building users know which areas are affected

Getting a fixed quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Get a price

Read more

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Why deal with it now?

Running fresh silicone along a failed bead hides the problem briefly. It doesn’t bond, so it peels and traps dirt behind it. Full removal and proper cleaning is what makes the new joint last. One visit to deal with every failing joint makes more sense than several trips to a place like Kent Street, rather than one at a time. Photos of every joint help us quote for the whole job.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why us?

  • Standard and matched colours in many product ranges
  • Clear, fixed quotes
  • One phone line for London, the South East and Scotland
  • Constructionline member for supplier checks

Read how commercial sealant jobs are priced and our accreditations.

Questions about Kent Street

Will all the washrooms in our Kent Street building be closed at once?

Rarely all at once: work is phased so some facilities are always available. Each area is handed back once the sealant has cured enough to use.

Is Kent Street too far out for you?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you work in hospitals, clinics and care homes?

We do. Your infection-control rules, estates requirements and permits are followed, and phase the work so areas keep facilities.

Can you quote from photographs?

That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.

What guarantee comes with washroom resealing?

A 12-month guarantee covers the work. It applies to our workmanship, not to plumbing leaks or damp from poor ventilation.

Can weather delay the job?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

Accreditations

Trusted. Accredited. Insured.