Southfleet washroom sealing
Sealing in commercial washrooms, showers, kitchens and wet areas in Southfleet and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.
- Stained sealant around pans and urinals
- Sealant laid over old silicone and now peeling
- Failed sealant behind washroom basins
Washroom sealing for Southfleet sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How a job runs
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Jobs in and around smaller places like Southfleet are usually planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- We start by inspecting the fittings and joints and flagging problems sealant can’t solve.
- A phasing plan keeps part of the building’s facilities in use at all times.
- Failed silicone is removed completely and the surfaces cleaned of every trace.
- Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
- A bead of anti-mould sanitary silicone goes in and is tooled to a smooth, cleanable profile.
- Rooms reopen after the product’s cure time, and we move to the next.
Getting the site ready
- Tell us which areas need to stay in use
- Have the specification and drawings to hand
- Tell staff and tenants when we will be in
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.
Related advice
How we handle washroom sealing in Southfleet
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. We are fully insured. Every resealed washroom carries our 12-month guarantee. Site teams most often ask us about users noticing mouldy joints and failed sealant in a tea point or staff kitchen, across accessible toilets and changing rooms, showers, trays and wet room floors and kitchens and tea points. Whoever orders the work in Southfleet, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
In and around smaller places like Southfleet, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Location
- Southfleet (DA13)
- Region
- Kent
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What happens if it’s left?
Cleaning mouldy sealant only masks it, but the mould is rooted in the silicone and comes back. A full reseal deals with it and your cleaning team stops chasing it. One visit to deal with every failing joint makes more sense than several trips to a place like Southfleet, rather than one at a time. Photos of every joint help us quote for the whole job.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why choose Mastic Doctor in Southfleet
- Products installed to the manufacturer’s instructions
- Clear, fixed quotes
- Sealing commercial buildings since 2005
- One number for every site we cover
Read how commercial sealant jobs are priced and how we’re accredited.
Places near Southfleet
Also in Southfleet
Common questions from Southfleet clients
Can work at a site such as University of Greenwich fit around teaching?
Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Would you work within a site like Gravesham Community Hospital?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you quote from photographs?
It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.
Can you clean the mould off instead of resealing?
Cleaning may lighten it, but the mould returns. We replace the sealant with an anti-mould sanitary grade and check the ventilation isn’t the cause.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
Does the weather affect the 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. Internal work is rarely affected.
Do you guarantee washroom sealing?
There is a 12-month guarantee on our workmanship, and we carry public liability insurance.
Quoting for work in Southfleet
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Whether old sealant has to be cut out first
- Travel to remote or island sites
- The size and state of each joint
- The site’s rules and procedures
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.
What we need to price the job
To price the job accurately, we need to understand the site. Send us:
- Any dates the work must fit around
- The product your specification calls for
- The asbestos register, for older buildings
- Anything awkward about access or site hours
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
Washroom sealing in Southfleet: the local picture
There are a number of hotels within about 2 miles of Southfleet. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. Central London is about 19 miles from Southfleet, in a commuter belt where offices and business parks are common. Office washrooms on business parks see heavy weekday use, and resealing in phases keeps facilities available.
On a healthcare site such as Gravesham Community Hospital (2.8 miles north-east of Southfleet), washroom work starts with the infection-control team’s sign-off. Office washrooms on sites such as Fawkham Business Park, 1.7 miles south-west of Southfleet, are in use all working day, so resealing is phased to keep some open. Halls linked to places like Church of St Nicholas host groups all week, which is hard on kitchen and toilet sealant.
Southfleet is about 2 miles south-west of Northfleet, in Kent. We send applicators to Southfleet for washrooms and wet areas. Southfleet is one of 931 places we cover in Kent for washrooms and wet areas. We also cover London, some 19 miles away.
Work on washrooms and wet areas is covered throughout DA13, for business premises of every kind. For a building on Red Street, Gloxinia Road and Brakefield Road or nearby, send details and we will quote for washrooms and wet areas. Just outside Southfleet, we also work in Hook Green (1 mile south-west), Northfleet Green (1 mile east), Betsham (1 mile north-west), Painters Ash (1 mile north-east) and Springhead (1 mile north). Bigger towns within reach include Maidstone (13 miles south-east), Dartford (5 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north-east), Tonbridge (15 miles south) and Swanley (7 miles west).
Local landmarks in Southfleet
We work on buildings around Northfleet School for Girls, Black Lion pub and Longfield Chalk Bank. The closest station to Southfleet is Longfield station, about 1.5 miles south-west of the centre. Other landmarks nearby include Gravesham Community Hospital (2.7 miles north-east) and Bluewater (2.9 miles north-west). For a walk, there’s Sawyers Lake.
How the job changes by surface
IPS and cubicle panels
Cubicle and IPS panels move when leaned on or knocked, so the sealant has to take that movement. We check fixings before sealing.
Basins and vanity tops
Natural stone tops can be marked by acetoxy silicone, so the product is chosen to suit.
Site staff or a sealant specialist?
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Work for main contractors and building owners
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.