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

Commercial washroom and wet-area sealing in Lee, Hampshire

Sealing in commercial washrooms, showers, kitchens and wet areas across Lee, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Black mould inside silicone joints that cleaning can’t shift
  • Washrooms that look worn because of the sealant
  • Failed sealant in a tea point or staff kitchen
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Washroom sealing near Lee

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Washroom sealing for commercial buildings in Lee

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, plus the kitchens and tea points that go with them. The products and the method are chosen for how heavily each space is used. Most enquiries involve open joints along basins and vanity units and open joints at the base of cubicle panels, on urinals and WCs, accessible toilets and changing rooms and kitchens and tea points. For commercial sealant work in Lee, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

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

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 standing beside their branded vans outside an office building
Place
Lee (SO51)
Region
Hampshire
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

When something else is needed

Honesty saves time and money. New sealant won’t cure:

  • A room that stays damp because ventilation isn’t working
  • A dripping waste or valve behind a panel
  • Failed tanking beneath a wet-room floor or behind tiles

Not sure which it is? You can speak to us on 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Where we work in Lee

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

Leave it or put it right?

Open or mouldy joints are hard to keep hygienic, and in kitchens, clinics and schools that is a real concern. A smooth, sealed joint can be cleaned properly. Converted and older buildings near places like Lee tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

Why clients in Lee choose us

  • Coloured sealants to suit the setting, where available
  • Commercial sealant work since 2005
  • Health and safety: CHAS accredited
  • One contact handling all your sites

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

Surface by surface

Showers and trays

A tray that rocks or has cracked won’t be fixed by sealant, and we’ll say so before resealing.

Wet-room floors and floor-to-wall joints

Wet floors are common in accessible showers and changing rooms so the edges are checked carefully.

Questions about Lee

Is Lee too far out for you?

Not at all. Lee is within our area. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Do hotels near Lee have to close for sealant work?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. Tell us your quiet periods and access windows and we will plan around them.

How soon can a washroom be used after resealing?

That varies with the sealant and the room temperature. You will get a reopening time for each area, and signs stay up until then.

Which sealant will you use?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

How long does a typical visit take?

It depends on the scope, though a typical visit normally takes half a day to a day per washroom, depending on the number of fittings. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Will your applicators have CSCS cards?

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

Can you quote from photos?

Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.

Do you need washroom sealing in Lee?

Washrooms are warm, damp and full of organic residue, and sealant joints trap all three. Even anti-mould grades can be colonised over time where extraction is poor.

Common reasons buildings call us in:

  • Complaints from staff, guests or users about tired washrooms
  • Discoloured joints around urinals and WC pans
  • Black mould inside silicone joints that cleaning can’t shift
  • Split or peeling sealant at shower trays

Units at estates like Crescent Industrial Estate (to the south of Lee) have welfare blocks whose showers and toilets see shift after shift.

Comparing quotes

  • How they handle RAMS and site documents
  • Health and safety accreditation such as CHAS
  • Who will actually carry out the work
  • Their approach to joint depth and backing

Questions to ask before you appoint anyone

How a job runs

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a building around Lee, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.

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

What we need from you

  • Point out any areas we must not close
  • For older buildings, check the asbestos register before work
  • Tell staff and tenants when we will be in

Get a fixed quote

Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or email a schedule or drawings.

Ask for a quote

Related advice

Washroom sealing around Lee: how the place shapes the job

The sea is no more than about 3 miles from Lee, and seaside hospitality normally has a peak season that works washrooms hard. Washrooms used guest after guest wear their sanitary silicone faster, and the quieter months are the natural time to reseal. Lee has two care or nursing homes no more than 2 miles away. Assisted bathrooms and wet rooms in care settings need sanitary sealant that stays cleanable. Each room is kept out of use only as long as the sealant needs.

At a college such as Totton College, which lies south of Lee, washroom and kitchen sealant is best renewed in the holidays or in phases during term. For a campus such as University of Southampton, which lies south-east of Lee, showers in residences and washrooms in teaching blocks can be programmed around term dates.

Lee is about 2 miles south of Romsey, in Hampshire. We send applicators to Lee for washrooms and wet areas, handled exactly as we handle every other area. Lee is one of 723 places in Hampshire on our list.

Work on washrooms and wet areas is covered throughout SO51. Among the streets we cover are Lee Lane and Lee Church Lane. Just outside Lee, we also work in Ashfield (1 mile east), Toothill (1 mile east), Upton (1 mile south-east), Nursling (1 mile south-east) and Rownhams (2 miles south-east). Nearby towns on our patch include Winchester (10 miles north-east), Eastleigh (6 miles east), Fareham (15 miles south-east), Totton (3 miles south), Chandler's Ford (5 miles north-east) and Hedge End (9 miles east).

What’s near Lee

Lee’s nearest station is Romsey station, roughly 2.4 miles north of the centre. Nearby you will also find King Johns House (2.3 miles north) and Romsey Community Hospital (2.3 miles north). Green spaces nearby include Testwood Lakes.

Map of Lee © OpenStreetMap contributors

Commercial clients in Lee

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Building owners and managing agents use us on everything from one building to a spread of sites around Lee. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Accreditations

Trusted. Accredited. Insured.