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

South Harewood washroom sealing

Need washroom sealing in South Harewood? It’s simple: send details, get a quote, we seal, guaranteed.

  • Gaps where vanity tops meet the wall
  • Stained sealant around pans and urinals
  • Panel joints letting water behind
1
Send details
Tell us about the site, with photos if you have them.
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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Washroom sealing across South Harewood

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

Our process

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. Rural sites near South Harewood may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. The phasing is agreed so there are always facilities open.
  3. The failed silicone is stripped and every face scraped clean of residue.
  4. Joints are cleaned, degreased and dried before sealing.
  5. A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
  6. Rooms reopen after the product’s cure time, and we move to the next.

Preparing the site

  • Let us know about inductions and permits
  • Make sure the joints can be reached
  • Explain the parking and delivery arrangements

Getting a fixed quote

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or ring 01277 525 020 or send photos by email if you’d rather talk the job through.

Get a quick quote

Advice

Washroom sealing in South Harewood, done properly

Black spotting along a sealant bead is not a cleaning problem. The growth is inside the sealant, which is why it comes back however often it is treated. Only replacement gets rid of it for good. If you have sealant laid over old silicone and now peeling and washrooms that look worn because of the sealant, we can help, on IPS panels and cubicles, urinals and WCs and showers, trays and wet room floors alike. A single leaking joint is often how a building in South Harewood first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Rural businesses near smaller places such as South Harewood, from cafés to event venues, rely on washrooms and kitchens that stay clean. Tell us your opening times and quiet periods and we’ll plan around them.

Work we carry out in Hampshire comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or email us and we will come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
South Harewood (SP11)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Commercial washrooms in South Harewood

At about 61 miles from central London, South Harewood is within reach of the capital, 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.

Clinical washrooms at sites like Andover War Memorial Hospital, 4.3 miles north-west of South Harewood, are scheduled with the ward so the room is out of use for as little time as possible. At a school such as Wherwell Primary School, changing rooms and kitchens need cleanable joints as much as the toilets.

South Harewood is about 4 miles south-east of Andover, in Hampshire. Commercial clients in South Harewood use us for work on washrooms and wet areas, as part of our coverage of Hampshire. We work across 723 places in Hampshire, from busy centres to rural villages. Our Southampton page has more on work in that area.

Work on washrooms and wet areas is covered throughout SP11, whatever the building. Nearby places we also cover include Wherwell (1 mile south-west), Wherwell Wood (2 miles west), Chilbolton (2 miles south-west), Cottonworth (2 miles south-west) and Fullerton (3 miles south-west). Further afield, our area takes in Basingstoke (15 miles north-east), Winchester (9 miles south-east), Eastleigh (15 miles south), Andover (4 miles north-west), Chandler's Ford (13 miles south) and Romsey (13 miles south).

Around South Harewood

South Harewood’s nearest station is Andover station, roughly 4 miles north-west. Nearby you’ll also find Andover War Memorial Hospital (4.3 miles north-west) and Finkley Down Farm Museum (3.5 miles north-west). The countryside around South Harewood includes Mill Lake and Anton Lakes.

Map of South Harewood © OpenStreetMap contributors

Why act early in South Harewood

Water gets behind panels and under floors through a failed joint. That can lead to swollen boards, marked ceilings below and lingering smells which costs more to fix than a reseal. Converted and older buildings near places like South Harewood tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

Why us?

  • Constructionline member
  • CHAS accredited
  • Over 20 years of commercial sealing
  • One phone line for London, the South East and Scotland

Take a look at how commercial sealant jobs are priced or how we’re accredited.

Common problems we fix in South Harewood

A lot of failed washroom sealant was laid over an old bead or a dirty surface. Silicone won’t adhere to a silicone bead so it peels away quickly.

If one of these sounds familiar, it’s time for a closer look:

  • Urinal joints that look unhygienic
  • Split or peeling sealant at shower trays
  • Panel joints letting water behind
  • Failed sealant in a tea point or staff kitchen

Welfare facilities in units on estates such as Harewood Forest Industrial Estate, 0.7 miles to the north of South Harewood, have showers, toilets and kitchens with sealant that works hard.

What to look for in a quote

  • How the existing material will be dealt with
  • Proof of insurance
  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing

Our contractor checklist

Should maintenance staff do it?

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.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Maintenance after handover

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Include joints in routine washroom inspections
  • Tell us about infection-control or permit rules before we quote
  • Report faulty extraction promptly
  • Avoid scourers and harsh descalers on silicone

Mild cleaning products and non-abrasive cloths look after sanitary silicone best. Strong acids, solvents and scourers wear the surface and give mould a start.

Leaks through tray and wet-floor joints can go unseen until a ceiling marks below. By then, other trades may be needed as well, so reseal when you first spot a split.

What affects the price in South Harewood

These are the things that shape the price:

  • Quantities, in metres or numbers
  • The product specified
  • How accessible the joints are
  • The site’s rules and procedures

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote once you have the details.

Before you send an enquiry

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

  • Rough lengths or quantities, or drawings if you have them
  • The product your specification calls for
  • Any dates the work must fit around
  • Asbestos survey details if the building is older

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.

FAQs: South Harewood

Is a smaller place like South Harewood outside your area?

No. Small places get the same service as large ones. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Would you work within a site like Andover War Memorial Hospital?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Will all the toilets be closed at once?

The work is phased so there are always facilities open. We work through the building a room or section at a time around your site hours and access windows.

Do you work in hospitals, clinics and care homes?

Yes. Your infection-control rules, estates requirements and permits are followed, and phase the work so areas keep facilities.

What guarantee comes with washroom resealing?

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

Are you CHAS accredited?

Yes. We are CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Are you insured?

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

Accreditations

Trusted. Accredited. Insured.