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

Commercial washroom and wet-area sealing in Crawley, Oxfordshire

Planning work on a washroom in Crawley? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Stained or open joints at kitchen sinks and worktops
  • Mould spotting along silicone joints
  • Users noticing mouldy joints
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing for businesses in Crawley

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our washroom sealing in Crawley

When mould has spotted a silicone joint, more cleaning won’t remove it. The mould has rooted into the silicone itself so it returns whatever the cleaning regime. Replacing the bead is the lasting treatment. If you have complaints from staff, guests or users about tired washrooms and a new bead over an old one coming away, we can put it right, whatever the surface. A specialist sealant contractor works differently from a general builder: in Crawley, that means joint design, primers and backing rod as standard.

Community buildings around smaller places like Crawley have kitchens and toilets used by many people. Fresh anti-mould sanitary silicone at sinks, worktops and toilets keeps them cleanable.

Every job is signed off with a 12-month guarantee. It’s a plain promise: 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
Place
Crawley (OX29)
Wider area
Oxfordshire
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

Questions we are asked in Crawley

Can work at a site such as Abingdon & Witney College: Witney Campus fit around teaching?

Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Is a hospital such as Witney Community Hospital somewhere you can work?

Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Is there a guarantee on the work?

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

Are your applicators CSCS-carded?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

What sealant do you use in washrooms?

Sanitary silicone with anti-mould additives in the majority of cases. We use neutral-cure versions on stone, some metals and near mirrors.

Who decides which product is used?

A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

What do you charge?

Each job is quoted on its own details. To get one, speak to us on 01277 525 020 or send details through our quote form with a description of the work.

Signs you need washroom sealing in Crawley

Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They aren’t made for constant wetting, and they stain, crack or wash out.

Site and facilities staff are often the first to spot these:

  • Urinal joints that look unhygienic
  • Resealing that didn’t last because the old bead stayed
  • Failed sealant in a tea point or staff kitchen
  • Mould spotting along silicone joints

Welfare facilities in units on estates such as Crawley Mill Industrial Estate, less than half a mile to the south-west of Crawley, have showers, toilets and kitchens with sealant that works hard.

What to look for in a quote

  • Health and safety accreditation such as CHAS
  • Whether old or failed sealant will be cut out, not overlaid
  • What the guarantee covers, and for how long
  • Their approach to joint depth and backing

Our contractor checklist

On site: what to expect

Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. Jobs in and around smaller places like Crawley are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.

  1. Every washroom is checked joint by joint, with loose panels, leaks or damp noted for the right trade.
  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. Joints are cleaned, degreased and dried before sealing.
  5. We lay a sanitary silicone bead and tool it smooth so it is easy to clean.
  6. You get a reopening time for every room, with signage left up until then.

Before we start on site

  • Point out parking and an unloading spot
  • Let us know about inductions and permits
  • Warn occupants and staff about the work

Ask for a quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Advice

Commercial washrooms in Crawley

The 2 miles around Crawley include two care or nursing homes. Care home wet rooms and en suites are used every day and cleaned hard, which tells on the silicone. Each room is kept out of use only as long as the sealant needs. A 2-mile radius around Crawley takes in a good number of hotels. Hotel en suites take daily use, and tired silicone at trays and basins is one of the first things guests notice. Rooms are done in turn so most stay available.

Colleges such as Abingdon & Witney College: Witney Campus, 1.6 miles to the south-east of Crawley, have toilets, changing rooms and catering kitchens that can be resealed around term dates. In a centre such as Windrush Valley Shopping Centre, 1.3 miles south of Crawley, public washrooms are resealed a block of facilities at a time.

Crawley is about 1 mile north-west of Witney, in Oxfordshire. We cover commercial sites throughout Crawley, whether it’s a single job or part of a planned programme. Our Oxfordshire coverage takes in 423 places, large and small. We also cover Oxford, around 12 miles from Crawley.

Business premises anywhere in OX29 are within our area for washrooms and wet areas. If your site is on Witney Hill, Farm Lane and Foxburrow Lane or close by, send details and we will quote for washrooms and wet areas. Sites close to Crawley are covered too, including Leafield (2 miles north-west), Swinbrook (4 miles west), Ascott d'Oyley (4 miles north-west), Ascott-under-Wychwood (5 miles north-west) and Ascott Earl (5 miles north-west). Bigger towns within reach include Oxford (12 miles east), Abingdon-on-Thames (13 miles south-east), Carterton (5 miles south-west), Wantage (15 miles south), Grove (14 miles south) and Faringdon (11 miles south).

Local landmarks in Crawley

In Crawley, that means premises near Wood Green School and The Lamb Inn. The closest station to Crawley is Finstock station, roughly 3.6 miles north-east of the centre. Other landmarks nearby include Cogges Manor Farm Museum (1.9 miles south-east). Not far away are Blenheim Farm.

Map of Crawley © OpenStreetMap contributors

Owners, agents and contractors

CHAS accredited and a Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.

How the job changes by surface

Kitchens and tea points

Kitchen work can be phased around service. Tell us your site hours and access windows and we’ll plan around them.

Urinals and WC pans

The joint between a pan and the floor is easy to overlook. We include them in the survey.

What sets the cost

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

  • How much existing material needs removing
  • The total length or number of joints
  • How accessible the joints are
  • Backing rod, priming and other preparation

Access can matter as much as the joints themselves: 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

To price the job accurately, we need a clear picture of the site. Send us:

  • Drawings or a marked-up plan, if available
  • Photos of the joints, close up and from further back
  • Asbestos survey details if the building is older
  • Any dates the work must fit around

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or send photos by email.

Why act early in Crawley

Washrooms shape how visitors judge a building. Guests, clients, pupils and patients notice stained joints even when the room is otherwise spotless. Resealing is a modest task with a very visible payoff. For buildings around smaller places like Crawley, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

A quote for washrooms and wet areas depends on quantities, condition and access. Call for a quote.

Why us?

  • Products installed to the manufacturer’s instructions
  • Health and safety: CHAS accredited
  • Over 20 years of commercial sealing
  • Our applicators hold CSCS cards

See what affects the cost or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.