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

Eastleigh washroom sealing

Washroom sealing in Eastleigh, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Urinal joints that look unhygienic
  • A new bead over an old one coming away
  • Open joints along basins and vanity units
1
Send details
Photos, drawings or a schedule, or we visit.
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
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Washroom sealing for Eastleigh sites

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

Washroom sealing around Eastleigh: how the place shapes the job

A 2-mile radius around Eastleigh takes in several hotels. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. We work a handful of rooms at a time, so the hotel keeps letting the rest. Eastleigh lies roughly 65 miles out from central London. Office washrooms on business parks see heavy weekday use, so we work a block of facilities at a time.

For a college such as Eastleigh College - Desborough Campus (0.6 miles south-west of Eastleigh), half-term and summer give the windows for washroom work. For a campus such as University of Southampton, which lies south-west of Eastleigh, showers in residences and washrooms in teaching blocks can be programmed around term dates. Healthcare washrooms on sites such as Wessex Hospital (to the north of Eastleigh) are resealed area by area, under the site’s own infection-control rules.

Eastleigh is about 4 miles north-east of Southampton, in Hampshire. Businesses, contractors and managing agents in Eastleigh use us for work on washrooms and wet areas. Our Hampshire coverage takes in 723 places, large and small.

Commercial sites across SO50, SO30, SO31 and SO19 are covered for washrooms and wet areas. For a building on Market Street, High Street and Scotter Square or nearby, send details and we will quote for washrooms and wet areas. Main routes into Eastleigh include the A335 and B3033. Nearby places we also cover include Bishopstoke (1 mile east), Boyatt Wood (1 mile north-west), Allbrook (2 miles north), Lord's Wood (2 miles north-east) and Highbridge (2 miles north). Nearby towns on our patch include Winchester (6 miles north), Gosport (14 miles south-east), Fareham (10 miles south-east), Horndean (15 miles east), Totton (8 miles south-west) and Hedge End (4 miles south-east). Eastleigh ranks among the main centres of Hampshire, with offices, shops, schools and other public and commercial buildings, and we cover them all.

What’s near Eastleigh

Locally, jobs take us to sites close to The Wagon Works pub, Lakeside Country Park and Quilley School of Engineering and the streets around them. There’s a railway station in Eastleigh itself: Eastleigh station. Well-known places in the area include Moorgreen Hospital (2.9 miles south) and Eastleigh Museum (less than half a mile west). Open spaces near Eastleigh include Flexford Nature Reserve.

Map of Eastleigh © OpenStreetMap contributors

Washroom sealing in Eastleigh

In healthcare and care settings, sealing is part of keeping surfaces cleanable. Your estates and infection-control requirements, and any permits the site uses, shape how we work. Any records you need are confirmed with the quote. If you’re dealing with users noticing mouldy joints and sealant stained black around basins and showers, we can put it right. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Eastleigh is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

In a town such as Eastleigh, commercial washrooms are in schools, care homes, surgeries, gyms, offices and pubs. Anti-mould sanitary silicone, laid on clean, dry joints, keeps them looking cared for and easy to clean.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Location
Eastleigh (SO50, SO30, SO31, SO19)
Wider area
Hampshire
Cover
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How the job changes by surface

Basins and vanity tops

Vanity tops and basins are splashed all day, so the joint to the wall and around each bowl fails early. We remove the old bead and lay a fresh one of sanitary silicone.

Urinals and WC pans

The joint between a pan and the floor is easy to overlook. They are checked with everything else.

Should maintenance staff do it?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

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. In a town such as Eastleigh, most jobs are single buildings. We start with your photos, drawings or a site visit, then send a fixed quote.

  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. The right sanitary or food-safe sealant is applied.
  5. We give you a reopening time for every room.

Before we start on site

  • Agree which areas must stay open
  • Tell us your opening times and when work is allowed
  • Share the asbestos register for older buildings

Ask for a quote

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

Ask for a quote

Advice

Common questions from Eastleigh clients

Will you plan work around the academic year at somewhere like University of Southampton?

Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Do hotels near Eastleigh have to close for sealant work?

Rarely, if ever. We take a few rooms out at a time. Housekeeping and our team agree each day’s rooms.

How long do sealant joints last?

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.

Do you have public liability insurance?

Yes. We are fully insured, and the certificate can go with your quote.

Can the sealant be colour-matched?

In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We confirm what’s available for the specified product when we quote.

Do you work in Eastleigh?

Yes. We cover Eastleigh, and you can call 01277 525 020 or email us to get started.

How many days will you need on site?

The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.

Work for main contractors and building owners

We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Eastleigh can sit alongside others in a wider programme across Hampshire.

After the work

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Squeegee showers and trays after busy periods
  • Inspect washroom sealant regularly
  • Leave signs up until the cure time is over
  • Photograph and log failed joints across the estate

If a joint we sealed fails within 12 months, tell us and we’ll look at it. Beyond that, regular checks keep small problems small.

A split joint at a shower tray can leak for a long time before anyone sees it. At that stage, boards or ceilings may need repair so failed joints are worth acting on quickly.

How the quote is worked out

We price every job individually. The things that drive the figure:

  • The site’s rules and procedures
  • Specialist products, such as fire-rated or hygienic sealants
  • Backing rod, priming and other preparation
  • Whether old sealant has to be cut out first

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

To price the job accurately, we need a clear picture of the site. Useful things to include:

  • Drawings or a marked-up plan, if available
  • Any dates the work must fit around
  • The product your specification calls for
  • Access details, including height

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email the details over.

Accreditations

Trusted. Accredited. Insured.