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

Commercial washroom and wet-area sealing in Surrex, Essex

Commercial sealant work in Surrex for contractors, FMs and building owners: sealing in commercial washrooms, showers, kitchens and wet areas, quoted at a fixed price.

  • Sealant lifting along a tray edge
  • Failed sealant in a tea point or staff kitchen
  • Discoloured joints around urinals and WC pans
1
Send details
Drawings, photos, a joint schedule or a site 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
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Washroom sealing across Surrex

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

Questions we are asked in Surrex

Do we have to close all our washrooms in Surrex for resealing?

Typically only some of them, for a short time. We work in phases so other facilities stay open. Sanitary silicone needs time to cure before the area is used, and we’ll tell you how long for the product used.

Is a smaller place like Surrex outside your area?

Not at all. Surrex is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

How do we ask for a quote?

You can use the quote form on this site; alternatively, phone 01277 525 020 or email us. Include photos or drawings if you have them.

Can one quote cover more than one building?

Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.

How do you choose the sealant?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Is old silicone taken out first?

We strip every bit of the failed bead and wipe away the residue before resealing. That’s what makes the new joint last.

Washroom sealing in Surrex, done properly

Accessible WCs, showers and changing areas have their own pinch points: wet-floor edges, tray perimeters, basin tops and the line where flooring meets the wall. Gaps in those places let water get under the floor or behind panels so they get particular attention. The enquiries we see most involve kitchen worktop joints that can’t be kept clean and failed sealant behind washroom basins, across vanity units and basins, accessible toilets and changing rooms and urinals and WCs. Whether you call it commercial sealant work, mastic application or joint sealing, in Surrex it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Surrex still have commercial washrooms and kitchens: in halls, pubs, schools, care homes and farm-based businesses. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

Location
Surrex (CO6)
Region
Essex
Cover
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Doing it in-house

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

How a job runs

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For work around Surrex, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
  2. A phasing plan keeps part of the building’s facilities in use at all times.
  3. The failed silicone is stripped and every face scraped clean of residue.
  4. We clean and dry every surface so the new sealant can grip.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. You get a reopening time for every room, with signage left up until then.

What we need from you

  • Tell us your opening times and when work is allowed
  • Point out parking and an unloading spot
  • Point out any areas we must not close

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, ring 01277 525 020 or send photos by email.

Get a quick quote

Related advice

Leave it or put it right?

Gaps and mould in joints give dirt and bacteria somewhere to sit, and in kitchens, clinics and schools that is a real concern. A smooth, sealed joint can be cleaned properly. Older rural buildings around Surrex move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why us?

  • A range of standard colours, depending on the product
  • Matching to RAL references, product permitting
  • Old sealant cut out, never sealed over
  • One phone line for London, the South East and Scotland

Read how commercial sealant jobs are priced and our accreditations and insurance.

What sealant work can’t fix

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

  • Vanity carcasses that have swollen
  • Condensation from failed extract fans
  • Hollow tiles or loose panels behind the joint

If in doubt, call 01277 525 020 or email the details over and we will say what we think before you book.

What we seal

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

Commercial washrooms in Surrex

Surrex has a number of hotels close by, all within 2 miles. En suite bathrooms, staff changing rooms and kitchens all need their sanitary silicone renewed in time. The work can go floor by floor, agreed with housekeeping. At about 43 miles from central London, Surrex is within reach of the capital. Office washrooms on business parks see heavy weekday use, so we work a block of facilities at a time.

At a school such as Honywood Community Science School, changing rooms and kitchens need cleanable joints as much as the toilets. Office toilets at parks like Threshelfords Business Park (2.2 miles south of Surrex) take steady weekday use, and mouldy silicone soon shows. Church halls and community buildings, such as those at St Peter ad Vincula, have kitchens and toilets used by many groups, and their sanitary sealant works hard.

Surrex is about 6 miles south-east of Halstead, in Essex. Businesses, contractors and managing agents in Surrex use us for work on washrooms and wet areas, as part of our coverage of Essex. Our Essex coverage takes in 644 places, large and small. London is covered too, some 43 miles away.

We take on washrooms and wet areas across the CO6 postcode area, for business premises of every kind. For a building on Old Road and Colchester Road or nearby, we can quote for washrooms and wet areas. Sites close to Surrex are covered too, including Skye Green (1 mile south-east), Broad Green (1 mile east), Stocks Green (1 mile south), Little Tey (1 mile east) and Feering (2 miles south). Further afield, our area takes in Colchester (8 miles east), Chelmsford (14 miles south-west), Braintree (7 miles west), Maldon (10 miles south), Witham (6 miles south-west) and Camulodunum (7 miles east).

Around Surrex

Locally, jobs take us to sites close to The Queens Head pub, among other places. The nearest railway station is Kelvedon station, about 2.3 miles south of the centre. Well-known places in the area include Laundry & Mangle Museum (1.8 miles west) and Birch Castle (5 miles south-east). Green spaces nearby include Belcher's and Broadfield Woods.

Map of Surrex © OpenStreetMap contributors

Surface by surface

Showers and trays

Shower joints in hotels, gyms and workplaces work hard. Each bead is stripped, the joint dried and new sealant laid.

Wet-room floors and floor-to-wall joints

Wet-room floors and the joints where flooring turns up the wall need to stay sound. Floor perimeters and sealant joints near drains are resealed.

Looking after the joints

After handover, a little attention goes a long way:

  • Avoid scourers and harsh descalers on silicone
  • Include joints in routine washroom inspections
  • Keep extract fans working and vents clear
  • Keep a record of which washrooms need attention

Each room goes back into use only when the sealant has cured enough. You will be told when showers and basins can be used again and signage stays in place until that time.

Mould in a joint spreads along the bead and into nearby grout and users notice. Replacing it early keeps the job to a reseal.

Accreditations

Trusted. Accredited. Insured.