Gunnersbury washroom sealing
We carry out sealing in commercial washrooms, showers, kitchens and wet areas in Gunnersbury and the surrounding area. Send details for a fixed quote.
- Urinal joints that look unhygienic
- Shower tray joints that have opened up
- Complaints from staff, guests or users about tired washrooms
Washroom sealing for Gunnersbury sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Washroom sealing in Gunnersbury, done properly
In a commercial washroom, sealant is typically the first thing to wear out. Around basins, urinals, cubicles, IPS panels and shower trays it takes water, soap, cleaning chemicals and knocks every day and mould that roots into it can’t be cleaned away. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. Most enquiries involve a new bead over an old one coming away and stained sealant around pans and urinals, on showers, trays and wet room floors, vanity units and basins and IPS panels and cubicles. Searching for sealant specialists in Gunnersbury? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
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.
Work we carry out in Greater London comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or send photos by email and we will come back to it.
- Place
- Gunnersbury (W4, W3, TW8)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
What affects the price in Gunnersbury
To price the job, we consider:
- Whether the work must be split into stages
- Site requirements such as inductions and permits
- Removal of failed or old sealant
- How accessible the joints are
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Sending details for a quote
A good diagnosis starts with the right details. Tell us:
- The product your specification calls for
- What the building is and how it’s used
- Photos of the joints, close up and from further back
- Asbestos survey details if the building is older
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or send details through our quote form.
Site staff or a sealant specialist?
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Toilets, showers and kitchens around Gunnersbury
Gunnersbury has a good number of hotels close by, all within 2 miles. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. The work can go floor by floor, agreed with housekeeping. A London building with hundreds of occupants can’t lose every washroom for a day, so resealing goes floor by floor, agreed with the facilities team.
Toilets at places like Kew Retail Park, 1 mile to the south of Gunnersbury, are cleaned constantly, which is hard on silicone. En suites at hotels like Clayton Hotel, less than half a mile south-west of Gunnersbury, are cleaned daily, which wears silicone over time.
Gunnersbury is about 1 mile south of Acton, in Greater London. We cover commercial sites throughout Gunnersbury. Our Greater London coverage takes in 764 places. For work in that direction, see our London page.
Commercial sites across W4, W3 and TW8 are covered. Streets here include Kew Road, Kent Road and Power Road. Main routes into Gunnersbury include the A3000. Sites close to Gunnersbury are covered too, including Strand-on-the-Green (1 mile south), Kew (1 mile south), Grove Park (1 mile south-east), Chiswick (1 mile east) and Turnham Green (1 mile south-east). Bigger towns within reach include London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles east), Kensington (3 miles east), St Pancras (7 miles east) and Shoreditch (9 miles east).
Around Gunnersbury
Around Gunnersbury, our work takes us to commercial buildings near Clayton Hotel Chiswick, Kew College Prep and Ark Acton Academy, among other places. Also close by are Turnham Green (0.5 miles east) and Library for Iranian Studies (1 mile north). Gunnersbury has its own railway station: Gunnersbury station. Nearby you’ll also find Barnes Hospital (2 miles south-east) and Livat Hammersmith (2.1 miles east). The countryside around Gunnersbury includes Kew Gardens Lake and Castlebar Hill.
Why deal with it now?
Leaving the job until a shutdown often means living with it for months. With phasing, the work can go ahead while most facilities stay open. Getting scaffold, permits or access booked in Gunnersbury takes effort, so it makes sense to deal with every failing joint while access is in place.
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Why choose Mastic Doctor in Gunnersbury
- 12-month guarantee on workmanship
- CHAS accredited
- Fully insured
- Commercial sealant work since 2005
Read our cost guide or our accreditations.
Questions we are asked in Gunnersbury
Can you work in a London building with booked loading and goods-lift slots?
Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry.
Do hotels near Gunnersbury have to close for sealant work?
In the majority of cases no closure is needed: we work room by room or floor by floor. Housekeeping and our team agree each day’s rooms.
What do you charge?
It depends on the job: quantities, access, the product and any phasing. Call for a quote.
What about RAMS and site documents?
Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
Are you CHAS accredited and on Constructionline?
Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.
Can you handle several sites?
Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.
Do you need to see the site first?
That depends on the size and complexity of the job. Simple work can often be priced from photographs, and bigger or more complex jobs normally get a visit.
Nearby places to Gunnersbury
More services for Gunnersbury
On site: what to expect
Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. Planning a London job such as one in Gunnersbury starts with access. Send the building rules and access times with your enquiry.
- We agree which washrooms close and when.
- Anything behind the joints that needs another trade is flagged.
- Failed sealant and residue are stripped out.
- The right sanitary or food-safe sealant is applied.
- We give you a reopening time for every room.
Getting the site ready
- Warn occupants and staff about the work
- Send any specification or drawings in advance
- Share your working hours and any access restrictions
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
Read more
Maintenance after handover
Regular inspection catches problems early. Specifically:
- Include joints in routine washroom inspections
- Brief cleaning staff to treat joints gently
- Respect the cure time before reopening each room
- Report faulty extraction promptly
Mild cleaning products and non-abrasive cloths look after sanitary silicone best. Strong acids, solvents and scourers wear the surface over time.
Inspectors look at whether kitchen surfaces can be kept clean. Failed sealant around sinks and worktops is easy to put right in good time.
Signs you need washroom sealing in Gunnersbury
Low-level joints get hit by mop buckets, cleaning trolleys and feet at skirting lines, urinal bases and around pans.
What tends to prompt an enquiry:
- Sealant laid over old silicone and now peeling
- Open joints along basins and vanity units
- Sealant stained black around basins and showers
- Discoloured joints around urinals and WC pans
Student showers at universities like Richmond American University London, under half a mile east of Gunnersbury, see more use than most, and their silicone shows it.
Comparing quotes
- Will CSCS-carded applicators be on site?
- What level of public liability insurance do they hold?
- What the guarantee covers, and for how long
- How they handle RAMS and site documents