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

Washroom Sealing in Goodmayes

Commercial sealant work in Goodmayes for contractors, FMs and building owners: sealing in commercial washrooms, showers, kitchens and wet areas, quoted at a fixed price.

  • Split or peeling sealant at shower trays
  • Kitchen worktop joints that can’t be kept clean
  • 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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing in Goodmayes

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

Washroom sealing for commercial buildings in Goodmayes

Facilities managers, contractors and building owners have used us for washroom sealing for over 20 years. We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. We are fully insured. Every resealed washroom carries our 12-month guarantee. If you’re dealing with shower tray joints that have opened up and gaps where vanity tops meet the wall, we can put it right, on vanity units and basins, urinals and WCs and showers, trays and wet room floors alike. Facilities teams, main contractors and managing agents in Goodmayes tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Many London buildings can’t close every toilet at once. We work through washrooms floor by floor or core by core, at times agreed with you, so staff and visitors can always find an open washroom.

We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Where
Goodmayes (IG3, RM8, RM6)
Wider area
Greater London
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Your questions answered

Must a hotel around Goodmayes close while you work?

Almost never. The work is phased so most rooms stay available. We agree the order of rooms and the timings with you before we start.

Do you take on work at healthcare sites like Goodmayes Hospital?

Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Can you handle several sites?

Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.

Do you guarantee washroom sealing?

Every job carries our 12-month guarantee. It covers our workmanship rather than damage, leaks from plumbing or ventilation problems.

Can you clean the mould off instead of resealing?

Normally not. The mould is inside the silicone so cleaning only lightens it for a while. Replacement is the lasting fix.

Do you work in hospitals, clinics and care homes?

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

From enquiry to sign-off

Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. We inspect each washroom and record the joints to be resealed.
  2. You get a fixed quote with the phasing plan.
  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

  • Clear stock, furniture or equipment away from the joints
  • Tell staff and tenants when we’ll be in
  • For older buildings, check the asbestos register before work

Quotes

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Ask for a quote

Advice

What happens if it’s left?

Running fresh silicone along a failed bead hides the problem briefly. Silicone won’t grip silicone, so it lifts and holds moisture underneath. Cutting out completely and cleaning back takes a little longer and lasts. Getting scaffold, permits or access booked in Goodmayes takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.

The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

Why clients in Goodmayes choose us

  • RAL and finish matching where the product range allows
  • Specification-led, product-correct work
  • Colours confirmed for the specified product
  • CSCS-carded applicators

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

Signs you need washroom sealing in Goodmayes

Much of the failed sealant we remove was applied over old silicone or residue. New silicone won’t grip the old so it peels away quickly.

Any of the following is a good reason to get the joints checked over:

  • Urinal joints that look unhygienic
  • Split or peeling sealant at shower trays
  • Resealing that didn’t last because the old bead stayed
  • Failed sealant in a tea point or staff kitchen

For a site such as Goodmayes Hospital, 1 mile north of Goodmayes, sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Before you book anyone

  • The named product and why it was chosen
  • The terms of the workmanship guarantee
  • How joint depth will be controlled
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

Quoting for work in Goodmayes

Before we quote, we look at:

  • Quantities, in metres or numbers
  • Specialist products, such as fire-rated or hygienic sealants
  • Any access equipment needed
  • Location, for remote and island sites

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

What we need to price the job

Whether it’s one area or a whole building, these details speed things up:

  • Anything awkward about access or site hours
  • Clear photographs of the problem areas
  • Where the site is, with the postcode
  • Approximate linear metres or a joint schedule

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or send photos by email.

Keeping the joints sound

Keep the joints in good shape with a few simple steps:

  • Don’t leave trays and floors sitting wet
  • Photograph and log failed joints across the estate
  • Brief cleaning staff to treat joints gently
  • Tell us about infection-control or permit rules before we quote

Ask your cleaning team to use gentle products and soft cloths on sealant. Strong acids, solvents and scourers wear the surface and give mould a start.

A few failed joints can be resealed with hardly any disruption. Left, it tends to become a building-wide job and more closures to manage.

Different surfaces, different methods

Wet-room floors and floor-to-wall joints

We seal the visible joints; we don’t install or repair waterproofing below and point it out if water appears to rise from below.

IPS and cubicle panels

A panel that has already swollen won’t be fixed by sealant, and any we come across will be pointed out.

Keeping Goodmayes washrooms open while we work

The area within 2 miles of Goodmayes holds plenty of hotels. Behind every hotel door there’s a bathroom whose sealant will need renewing sooner or later. The work can go floor by floor, agreed with housekeeping. London offices and hotels typically can’t close all their washrooms at once, so we take one block of facilities out of use at a time.

Customer toilets and staff facilities at retail sites such as Grove Farm Retail Park (0.6 miles north-east of Goodmayes) need sealant that stays clean under heavy use. At a college such as New City College, 1.2 miles north of Goodmayes, washroom and kitchen sealant is best renewed in the holidays or in phases during term.

Goodmayes is about 2 miles north of Barking, in Greater London. We send applicators to Goodmayes for washrooms and wet areas. Goodmayes is one of 764 places in Greater London on our list. For work in that direction, see our London page.

Work on washrooms and wet areas is covered throughout IG3, RM8 and RM6. Buildings on High Road, Green Lane and Essex Road are within our area. Main routes into Goodmayes include the A1083, which helps when planning parking and deliveries for the job. Nearby places we also cover include Little Heath (1 mile north), Aldborough Hatch (1 mile north), Chadwell Heath (2 miles north-east), Becontree (2 miles south-east) and Becontree Heath (2 miles east) for washrooms and wet areas. Nearby towns on our patch include London (10 miles south-west), City of Westminster (12 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (10 miles west) and Shoreditch (9 miles west).

Near you in Goodmayes

Recent enquiries here include premises near The Eva Hart pub, South Park and Mayfield School, among other places. There’s a railway station in Goodmayes itself: Goodmayes station. A little further out are Redbridge Museum (1.7 miles west) and Goodmayes Hospital (0.9 miles north). The countryside around Goodmayes includes Hollow Pond and Scrattons Eco Park.

Map of Goodmayes © OpenStreetMap contributors
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