
Washroom Sealing contractors in Falconwood
We carry out sealing in commercial washrooms, showers, kitchens and wet areas in Falconwood. Send photos or drawings for a fixed quote.
- Open joints at the base of cubicle panels
- Stained sealant around pans and urinals
- Sealant stained black around basins and showers
Washroom sealing near Falconwood
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Washroom sealing for commercial buildings in Falconwood
In a commercial washroom, sealant is normally 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. We strip it out and lay new anti-mould sanitary silicone. The enquiries we see most involve sealant lifting along a tray edge and gaps where vanity tops meet the wall, on vanity units and basins, IPS panels and cubicles and kitchens and tea points. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Falconwood is the same: the right product in a properly prepared joint.
In a London area such as Falconwood, commercial washrooms in offices, hotels and leisure buildings see constant use. We cut out tired sealant around vanity units, cubicles, IPS panels and showers and lay fresh anti-mould sanitary silicone, a block of facilities at a time.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

- Place
- Falconwood (DA16, DA15, SE9)
- Region
- Greater London
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
When something else is needed
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:
- A room that stays damp because ventilation isn’t working
- Swollen or delaminated boards behind panels or vanity tops
- Loose panels, vanity units or tiles, which need fixing first
If you’re not sure, just phone 01277 525 020 or send photos by email and we will give you a straight answer.
Where we work in Falconwood
- Showers, trays and wet room floors
- Kitchens and tea points
- Vanity units and basins
- Accessible toilets and changing rooms
- Urinals and WCs
- IPS panels and cubicles
Nearby places to Falconwood
Also in Falconwood
Common questions from Falconwood clients
Can you work in a London building with booked loading and goods-lift slots?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Share the building’s contractor rules and we will work to them.
Must a hotel around Falconwood 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 small jobs?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
What do you charge?
We don’t publish prices, as every site differs. With photos or drawings, we can give you a fixed quote.
Do you offer coloured sealant?
Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.
What site paperwork can you supply?
Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we’ll confirm with the quote.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Site staff or a sealant specialist?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
From enquiry to sign-off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a morning or so for a small washroom, longer where showers and changing rooms are included, and we clear our waste as we work. In Falconwood, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- Every room is surveyed and the failed joints listed.
- The fixed quote sets out the rooms, the products and the phasing.
- Old sealant is removed completely and the faces cleaned.
- Joints are degreased and dried.
- A sanitary silicone bead is laid and given a smooth tooled finish.
- Each area is handed back when ready.
Preparing the site
- Let us know about inductions and permits
- Point out parking and an unloading spot
- Tell us your opening times and when work is allowed
Quotes
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.
Related advice
When to call us in Falconwood
Much of the failed sealant we remove was applied over old silicone or residue. Silicone won’t adhere to a silicone bead, so it soon lets go.
Clients typically get in touch after noticing one or more of the following:
- Kitchen worktop joints that can’t be kept clean
- A new bead over an old one coming away
- Open joints along basins and vanity units
- Complaints from staff, guests or users about tired washrooms
If you manage an office at a site such as Green Lane Business Park, which lies south-west of Falconwood, the washrooms and tea points can be done a floor at a time.
Questions to ask before you book
- How the existing material will be dealt with
- Are they CHAS accredited or on Constructionline?
- Is the sealant right for the movement and the substrate?
- How long is the guarantee, and what does it include?
Washroom sealing around Falconwood: how the place shapes the job
There are several hotels within about 2 miles of Falconwood. 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. Falconwood has four care or nursing homes no more than 2 miles away. In a care setting, a mouldy or lifting joint in a wet room is a hygiene issue as much as a cosmetic one. Work is agreed with the manager, around residents’ routines.
Healthcare washrooms on sites such as Memorial Hospital (to the west of Falconwood) are resealed area by area, under the site’s own infection-control rules. In a centre such as Broadway Shopping Centre (2.2 miles east of Falconwood), public washrooms are resealed a block of facilities at a time.
Falconwood is about 2 miles north-east of Eltham, in Greater London. We cover Falconwood, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Greater London coverage takes in 764 places, from busy centres to rural villages. For work in that direction, see our London page (9 miles or so).
We cover the DA16, DA15 and SE9 postcode districts for washrooms and wet areas. Among the streets we cover are Hook Lane, Gordon Road and Kent Avenue, and sites on any of them can send details for a fixed quote. We also cover Blackfen (1 mile south), East Wickham (1 mile north), Avery Hill (1 mile south-west), Shooter's Hill (1 mile north-west) and New Eltham (2 miles south-west) for washrooms and wet areas. Further afield, our area takes in London (9 miles west), City of Westminster (11 miles west), Marylebone (11 miles west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Local landmarks in Falconwood
We work on buildings around The Plough and Harrow pub, Shoulder of Mutton Green and Harris Academy Falconwood and the streets around them. For rail, the closest station is Welling station, roughly 0.5 miles north-east of the centre. Other landmarks nearby include Broadway Shopping Centre (2.2 miles east) and Memorial Hospital (1.4 miles north-west). Open spaces near Falconwood include The Tarn and Summer Hill.
What happens if it’s left?
Water gets behind panels and under floors through a failed joint. That can lead to swollen boards, marked ceilings below and lingering smells, and fixing that takes far more work than resealing. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.
Why choose Mastic Doctor in Falconwood
- Workmanship guaranteed for 12 months
- Colour options checked against the specified product
- A range of standard colours, depending on the product
- CHAS accredited
Read our cost guide or how we’re accredited.
How the job changes by surface
IPS and cubicle panels
Panels flex slightly in use, so the sealant has to take that movement. We check fixings before sealing.
Showers and trays
Shower trays move under foot and are wet all day. Tray perimeters are a frequent source of leaks.