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

Commercial washroom and wet-area sealing in Newtown, Reading

Need washroom sealing in Newtown? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Failed sealant in a tea point or staff kitchen
  • A new bead over an old one coming away
  • Failed joints along IPS and cubicle panels
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Washroom sealing for businesses in Newtown

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

How we handle washroom sealing in Newtown

Since 2005 we have resealed commercial washrooms for facilities teams, contractors and building owners. We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. There is public liability insurance behind every job. Every resealed washroom carries our 12-month guarantee. We work on IPS panels and cubicles, vanity units and basins and accessible toilets and changing rooms, and what we’re called in for most is resealing that didn’t last because the old bead stayed and black mould inside silicone joints that cleaning can’t shift. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Newtown is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

In and around places like Newtown, hospitality kitchens and toilets see heavy use in busy spells. Sealed joints at sinks, worktops and splashbacks help keep the kitchen cleanable.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Where
Newtown (RG1, RG6, RG4)
Wider area
Reading
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

When it isn’t the sealant

We check first that sealant really is the fix. It isn’t the answer for:

  • Hollow tiles or loose panels behind the joint
  • Leaking pipes, traps, wastes or cisterns, which need a plumber
  • A room that stays damp because ventilation isn’t working

Not sure which it is? You can ring 01277 525 020 or email us and we will tell you honestly.

Surfaces we seal

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

Owners, agents and contractors

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, and our applicators hold CSCS cards.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Different surfaces, different methods

Healthcare and care settings

In healthcare, sealed joints are part of infection control. Your infection-control and estates rules are followed as well as site permits.

Kitchens and tea points

We plan kitchen sealing around when the kitchen is in use. Your site hours and access windows set the timing.

Why it’s worth doing now in Newtown

Washrooms shape how visitors judge a building. Visitors notice black sealant before they notice much else. Fresh sanitary silicone lifts a room with very little disruption. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.

The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a quote once you have the details.

Why choose Mastic Doctor in Newtown

  • 12 months’ guarantee on every job
  • Health and safety: CHAS accredited
  • Public liability insurance in place
  • Products installed to the manufacturer’s instructions

Read our cost guide or our accreditations and insurance.

On site: what to expect

At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. For a site in Newtown, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. Every room is surveyed and the failed joints listed.
  2. The fixed quote sets out the rooms, the products and the phasing.
  3. Old sealant is removed completely and the faces cleaned.
  4. Each joint is cleaned and left dry.
  5. A sanitary silicone bead is laid and given a smooth tooled finish.
  6. Each area is handed back when ready.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Agree which areas must stay open
  • Tell staff and tenants when we’ll be in

Getting 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, ring 01277 525 020 or send photos by email.

Get a price

Advice

Questions about Newtown

Would you work within a site like Royal Berkshire Hospital?

Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.

Can you work around term dates at a campus such as University of Reading?

Yes. We plan campus work around teaching, exams and residence turnarounds. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is colour matching possible?

That depends on the product specified. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.

Is it possible to just clean mouldy silicone?

Surface cleaning won’t reach mould that has rooted into the bead. New anti-mould sanitary silicone is the treatment and check the ventilation isn’t the cause.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

How do we ask for a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

Does weather matter for sealant work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Signs you need washroom sealing in Newtown

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.

Typical triggers for a call:

  • Sealant laid over old silicone and now peeling
  • Sealant lifting along a tray edge
  • Open joints along basins and vanity units
  • Stained sealant around pans and urinals

Office washrooms on sites such as Suttons Business Park (under half a mile north-east of Newtown) are in use all working day, so resealing is phased to keep some open.

Questions to ask before you book

  • How they’ll work around occupants
  • What the guarantee covers, and for how long
  • How the existing material will be dealt with
  • Is the sealant right for the movement and the substrate?

Choosing a commercial sealant contractor

Toilets, showers and kitchens around Newtown

There are plenty of hotels within about 2 miles of Newtown. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. Rooms are done in turn so most stay available. At about 37 miles from central London, Newtown is within reach of the capital. Office washrooms on business parks see heavy weekday use, which is why the work is phased.

Healthcare washrooms on sites such as Royal Berkshire Hospital (to the south-west of Newtown) are resealed area by area, under the site’s own infection-control rules. At a college such as Reading College, less than half a mile to the west of Newtown, washroom and kitchen sealant is best renewed in the holidays or in phases during term.

Newtown is about 1 mile east of Reading, in Reading. We cover Newtown and the rest of Reading, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Newtown is one of 17 places in Reading on our list for washrooms and wet areas.

Commercial sites across RG1, RG6 and RG4 are covered. Among the streets we cover are Orts Road, Eldon Road and Amity Road, and sites on any of them can send details for a fixed quote. Just outside Newtown, we also work in Lower Caversham (1 mile north-west), Reading (1 mile west), Earley (2 miles south-east), Caversham (2 miles north-west) and Play Hatch (2 miles north). Nearby towns on our patch include Norcot (3 miles west), Tilehurst (4 miles west), Tilehurst Within (4 miles west), Horncastle (3 miles west), Whitley Wood (3 miles south) and Southcote (3 miles west).

What’s near Newtown

Around Newtown, our work takes us to commercial buildings near University of Reading library, Maiden Erlegh School and Eldon Square. Also close by are The Fisherman's Cottage pub (under half a mile west) and Bulmershe College (less than half a mile west). The nearest railway station is Reading station, about 1.1 miles west of the centre. A little further out are The Oracle (1.1 miles west) and Royal Berkshire Hospital (0.6 miles south-west). The countryside around Newtown includes Fobney Island Wetland Reserve and Sonning Hill.

Map of Newtown © OpenStreetMap contributors
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