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

Commercial washroom and wet-area sealing in Ware, Hertfordshire

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

  • Open joints at the base of cubicle panels
  • Failed sealant in a tea point or staff kitchen
  • Shower tray joints that have opened up
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Washroom sealing near Ware

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

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:

  • Leaks through tanking or membranes below the finishes
  • A dripping waste or valve behind a panel
  • Loose panels, vanity units or tiles, which need fixing first

If you’re not sure, just ring 01277 525 020 or email us and we will give you a straight answer.

Surfaces we seal

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

Washroom sealing for commercial buildings in Ware

Washroom joints need the right sealant, not whatever is to hand. Sanitary grades carry anti-mould additives, and neutral-cure types are used where acetoxy silicone could attack some metals, stone or mirror backings. Where food contact is possible, we use a hygienic, food-safe grade. The enquiries we see most involve open joints at the base of cubicle panels and resealing that didn’t last because the old bead stayed, across kitchens and tea points, urinals and WCs and IPS panels and cubicles. Whether you call it commercial sealant work, mastic application or joint sealing, in Ware it comes down to the same thing: the right product in a properly prepared joint.

Schools in towns like Ware typically want washrooms and changing rooms done in the holidays, while offices and care homes need phased work. Let us know your opening times and any access limits, and we will work to them.

Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Ware (SG12, SG9)
Region
Hertfordshire
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Doing it in-house

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

For managing agents and facilities managers

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

What sets the cost

We price every job individually. The main factors are:

  • Location, for remote and island sites
  • How accessible the joints are
  • Removal of failed or old sealant
  • Whether the work must be split into stages

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

Details that help us quote

Whether it’s one area or a whole building, the same details help:

  • Clear photographs of the problem areas
  • The type of building and who uses it
  • Rough lengths or quantities, or drawings if you have them
  • When you need the work done

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Diagnose, treat, sign off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Town-centre premises in Ware may have limited parking, so tell us what’s nearby. Industrial and business units typically have yard or car park space.

  1. We agree which washrooms close and when.
  2. Anything behind the joints that needs another trade is flagged.
  3. Failed sealant and residue are stripped out.
  4. We reseal with the grade suited to each area.
  5. We give you a reopening time for every room.

What we need from you

  • For older buildings, check the asbestos register before work
  • Let building users know which areas are affected
  • Clear stock, furniture or equipment away from the joints

Getting a fixed quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or email us.

Get a price

Read more

Questions about Ware

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

Do hotels near Ware have to close for sealant work?

Rarely, if ever. We take a few rooms out at a time. The plan is built around your bookings.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Do you work in Ware?

Yes. We take on work across Ware, and the same phone number covers every area.

Do you do washroom sealing in healthcare settings?

We do. Your infection-control rules, estates requirements and permits are followed. The work is phased around patients or residents.

Will your applicators have CSCS cards?

Yes. Our applicators hold CSCS cards, as many construction sites ask for.

Can you quote from photos?

It depends on the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.

When to call us in Ware

Occasionally a joint keeps failing because of a problem behind it: a loose panel, a leaking waste or water coming through the wall. We check for that first and tell you if another trade is needed.

Things that usually lead to an enquiry:

  • Users noticing mouldy joints
  • Sealant laid over old silicone and now peeling
  • Urinal joints that look unhygienic
  • Open joints along basins and vanity units

Clinical washrooms at sites like Hertford County Hospital (2.8 miles south-west of Ware) are scheduled with the ward so the room is out of use for as little time as possible.

Questions to ask before you book

  • Will RAMS and insurance details be available?
  • How they’ll work around occupants
  • How the existing material will be dealt with
  • Are they CHAS accredited or on Constructionline?

Questions to ask before you appoint anyone

Sanitary sealant for Ware buildings

A 2-mile radius around Ware takes in a number of hotels. Hotel en suites take daily use, and tired silicone at trays and basins is one of the first things guests notice. Ware lies roughly 22 miles out from central London, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, so we phase work to keep some facilities open.

Office washrooms on sites such as Crane Mead Business Park, 0.5 miles to the south-east of Ware, are in use all working day, so resealing is phased to keep some open. For centre management at a site such as Madford Retail Park, 2 miles south-west of Ware, washroom work is planned around footfall.

Ware is about 7 miles north-west of Harlow, in Hertfordshire. Commercial clients in Ware use us for work on washrooms and wet areas, as part of our coverage of Hertfordshire. 371 places across Hertfordshire fall within our area, Ware among them. Our London page has more on work in that area.

We cover the SG12 and SG9 postcode districts. Buildings on High Street, Station Road and London Road are within our area. With the A10 and A119 nearby, Ware is straightforward for us to reach. Close to Ware, our area also takes in Thundridge (1 mile north), Cold Christmas (2 miles north-east), Wadesmill (2 miles north), Chapmore End (2 miles north-west) and Tonwell (2 miles north-west). Nearby towns on our patch include Stevenage (9 miles north-west), St Albans (13 miles west), Bishop's Stortford (9 miles north-east), Welwyn Garden City (7 miles west), Harpenden (14 miles west) and Hitchin (14 miles north-west).

Near you in Ware

Recent enquiries here include premises near Hertford Regional College, The Chauncy School and The Albion Public House. There’s a railway station in Ware itself: Ware station. A little further out are Barrowfield (1.2 miles south-west) and Hertford County Hospital (2.8 miles south-west). Not far away are King's Meads.

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