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

Washroom Sealing contractors in High Leigh

Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in High Leigh and the surrounding area. Send details for a fixed quote.

  • Stained sealant around pans and urinals
  • Black mould inside silicone joints that cleaning can’t shift
  • Sealant laid over old silicone and now peeling
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing in High Leigh

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

Questions about High Leigh

Can you take on a job at a hospital such as Hertford County Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is High Leigh off your patch?

No. Places such as High Leigh are covered as much as the big towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

Do you use special sealant for toilets and showers?

It depends on the joint. Washrooms and showers take anti-mould sanitary silicone, and food areas take a hygienic, food-safe sealant where food contact is possible.

When is resealing likely to be due?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

How long does a typical visit take?

The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.

Do you phase washroom resealing?

Just the room being resealed is out of use. Each room reopens after the sealant’s cure time and we start the next.

Can the sealant be colour-matched?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.

Washroom sealing in High Leigh, done properly

From one staff toilet in High Leigh to washrooms across a whole estate, the route is the same: send details, get a fixed quote, we seal, guaranteed. Photos and a rough count of basins, urinals, showers and cubicles help us give a quick quote and a site visit is an option. If you’re dealing with sealant laid over old silicone and now peeling and failed sealant in a tea point or staff kitchen, we can put it right. Searching for sealant specialists in High Leigh? We’ve been sealing commercial buildings since 2005.

Halls and community buildings near places like High Leigh are used by different groups through the week, and their toilets and kitchens show it. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

Location
High Leigh (EN11)
Wider area
Hertfordshire
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What the job involves on each surface

Basins and vanity tops

Natural stone tops can be marked by acetoxy silicone and we choose a neutral-cure grade for them.

Kitchens and tea points

Kitchen joints need to be smooth and sealed so they can be cleaned properly. Where food contact is possible, we use a hygienic, food-safe sealant.

After the work

Regular inspection catches problems early. Specifically:

  • Act on the first split you see at a shower tray
  • Share your site rules when you send details
  • Keep washrooms out of use until we say the sealant has cured
  • Note failing joints building by building

Include sealant joints in your planned maintenance checks. Look for black spotting, cracks, peeling edges and gaps at the busiest fittings and log what you find.

Boards behind panels and vanity tops can swell when water gets past a failed joint. Once that happens, a reseal won’t fix them.

Owners, agents and contractors

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. For a building around High Leigh, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  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. A sanitary silicone bead is laid and given a smooth tooled finish.
  6. Each area is handed back when ready.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Tell us which areas need to stay in use
  • Explain the parking and delivery arrangements

Ask for a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.

Get a quick quote

Read more

Keeping High Leigh washrooms open while we work

Central London is about 18 miles from High Leigh. Business park offices have washrooms in daily use by staff, so we phase work to keep some facilities open.

Healthcare washrooms on sites such as Hertford County Hospital (3.5 miles north-west of High Leigh) are resealed area by area, under the site’s own infection-control rules. Halls linked to places like Church of St Catherine & St Paul host groups all week, which is hard on kitchen and toilet sealant. At a college such as Hertford Regional College, less than half a mile north of High Leigh, washroom and kitchen sealant is best renewed in the holidays or in phases during term.

High Leigh is about 1 mile north-west of Hoddesdon, in Hertfordshire. We cover High Leigh, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Hertfordshire coverage takes in 371 places, from busy centres to rural villages. We also cover London, around 18 miles from High Leigh.

Business premises anywhere in EN11 are within our area. We cover commercial and managed buildings on Lord Street, Sedgwick Grove and Box Lane. We also cover Woollensbrook (1 mile north), Goose Green (1 mile west), Hoddesdon (1 mile south-east), Broxbourne (1 mile south) and Hailey (1 mile north). Nearby towns on our patch include Stevenage (12 miles north-west), St Albans (13 miles west), Bishop's Stortford (11 miles north-east), Welwyn Garden City (8 miles west), Harpenden (14 miles west) and Cheshunt (4 miles south).

Around High Leigh

We work on buildings around Barclay Park, King William IV Public House and Robert Barclay Academy, among other places. The closest station to High Leigh is Broxbourne station, roughly 1.3 miles south-east of the centre. Nearby you’ll also find Lowewood Museum (0.8 miles south-east) and Hertford County Hospital (3.5 miles north-west). For a walk, there’s Danemead and Cheshunt Lake.

Map of High Leigh © OpenStreetMap contributors

When something else is needed

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Failed tanking beneath a wet-room floor or behind tiles
  • Loose panels, vanity units or tiles, which need fixing first
  • Condensation from failed extract fans

If in doubt, speak to us on 01277 525 020 or email drawings and photos and we’ll say what we think before you book.

Surfaces we seal

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

What sets the cost

The price varies from site to site. Expect it to depend on:

  • Distance, for remote addresses
  • Whether old sealant has to be cut out first
  • The product specified
  • Access and working height

A quote for washrooms and wet areas depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.

Sending details for a quote

A few photos plus some basic facts will normally do. It helps to include:

  • Any dates the work must fit around
  • Whether an asbestos survey exists
  • Access details, including height
  • The postcode of the building

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or send details through our quote form with what you know.

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