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

Commercial washroom and wet-area sealing in Newington, Kent

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

  • Users noticing mouldy joints
  • Kitchen worktop joints that can’t be kept clean
  • Stained sealant around pans and urinals
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Washroom sealing for businesses in Newington

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our washroom sealing in Newington

Accessible WCs, showers and changing areas have their own pinch points: shower trays, wet-room floor edges, basins and floor-to-wall junctions. Gaps in those places let water get under the floor or behind panels so they get particular attention. We work on accessible toilets and changing rooms, vanity units and basins and urinals and WCs, and the failures we are asked to look at most are failed sealant behind washroom basins and sealant laid over old silicone and now peeling. A specialist sealant contractor works differently from a general builder: in Newington, that means joint design, primers and backing rod as standard.

Smaller places such as Newington still have commercial washrooms and kitchens: in halls, pubs, schools, care homes and farm-based businesses. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Location
Newington (CT18, CT20, CT19)
Region
Kent
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Different surfaces, different methods

Changing rooms and gyms

Gym and leisure changing rooms see showers running most of the day so sealant there works very hard. We use anti-mould sanitary silicone throughout.

Showers and trays

Shower joints in hotels, gyms and workplaces work hard. Each bead is stripped, the joint dried and new sealant laid.

After the work

Once the work is signed off, these steps help:

  • Tell us about infection-control or permit rules before we quote
  • Clear standing water from shower floors where possible
  • Brief cleaning staff to treat joints gently
  • Note failing joints building by building

Squeegeeing showers and trays after heavy use helps. Joints that sit wet for hours fail sooner.

Mouldy sealant only gets harder to ignore and users notice. Replacing it early keeps the job to a reseal.

Wet areas in Newington’s workplaces

Newington sits close to the coast, within about 2 miles, and places by the sea often rely on visitors, so their hotels and holiday lets see heavy seasonal use. Washrooms used guest after guest wear their sanitary silicone faster, so we plan the work for quieter weeks where possible. There are a number of hotels within about 2 miles of Newington. 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.

Student showers at universities like University Centre Folkestone, 3 miles east of Newington, see more use than most, and their silicone shows it. Welfare facilities in units on estates such as Shorncliffe Industrial Estate (1.4 miles south-east of Newington) have showers, toilets and kitchens with sealant that works hard. Colleges such as Folkestone College, 2.3 miles east of Newington, have toilets, changing rooms and catering kitchens that can be resealed around term dates.

Newington is about 2 miles north-east of Hythe, in Kent. We cover Newington, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Kent coverage takes in 931 places, large and small. There’s a separate page for Brighton, roughly 57 miles from Newington.

We take on washrooms and wet areas across the CT18, CT20 and CT19 postcode area, whatever the building. If your site is on School Lane, Newington Road and Boulevard D'erlanger or close by, send details and we’ll quote for washrooms and wet areas. Sites close to Newington are covered too, including Peene (1 mile north-east), Cheriton (1 mile east), Arpinge (1 mile north-east), Seabrook (1 mile south) and Etchinghill (2 miles north-west). A short drive away, we cover Ashford (11 miles west), Canterbury (13 miles north), Dover (9 miles east), Deal (15 miles north-east), Tower Hamlets (8 miles east) and Walmer (15 miles north-east).

Near you in Newington

Recent enquiries here include premises near The Britannia pub and the streets around them. The nearest railway station is Folkestone West station, about 1.8 miles east of the centre. Other landmarks nearby include Royal Victoria Hospital (2.5 miles east) and Elham Valley Countryside Centre And Railway Museum (0.5 miles north). For a walk, there’s Tolsford Hill.

Map of Newington © OpenStreetMap contributors

Building owners, agents and FMs in Newington

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Newington can form part of a wider programme.

Common questions from Newington clients

Is hospital work, at somewhere like Royal Victoria Hospital, something you do?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can work at a site such as University Centre Folkestone fit around teaching?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

Can you reseal washrooms in healthcare buildings?

We do. We work to your estates and infection-control requirements and any site permits, and phase the work so areas keep facilities.

Do you guarantee washroom sealing?

A 12-month guarantee covers the work. It applies to our workmanship, not to plumbing leaks or damp from poor ventilation.

Is it possible to just clean mouldy silicone?

Cleaning may lighten it, but the mould returns. New anti-mould sanitary silicone is the treatment and point out if ventilation is part of the problem.

Will your applicators have CSCS cards?

Yes. We use CSCS-carded applicators, as many construction sites ask for.

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a building around Newington, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We survey each room, count the joints and note anything behind them that needs another trade.
  2. The phasing is agreed so there are always facilities open.
  3. The failed silicone is stripped and every face scraped clean of residue.
  4. Each joint is degreased and left dry, because silicone won’t bond to damp or soapy surfaces.
  5. New sanitary silicone with anti-mould additives goes in and is tooled neat.
  6. Each room is handed back once the sealant has had its cure time.

Preparing the site

  • Share the asbestos register for older buildings
  • Agree which areas must stay open
  • Clear stock, furniture or equipment away from the joints

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, phone 01277 525 020 or email the details over.

Get a quick quote

Read more

What affects the price in Newington

Before we quote, we look at:

  • Quantities, in metres or numbers
  • Induction, permit and paperwork requirements
  • Backing rod, priming and other preparation
  • Whether old sealant has to be cut out first

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

What we need to price the job

Whether it’s one area or a whole building, the same details help:

  • Any specification or named product
  • Photos of the joints, close up and from further back
  • Where the site is, with the postcode
  • Approximate linear metres or a joint schedule

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or send photos by email.

Why act early in Newington

A failed joint behind a basin or along a shower tray lets water run where it shouldn’t. In a commercial building that can mean damaged boards, stained ceilings on the floor below and odours, and fixing that takes far more work than resealing. Older rural buildings around Newington move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

A quote for washrooms and wet areas depends on quantities, condition and access, and any specification that applies. Call for a quote.

What you get with us

  • Specification-led, product-correct work
  • Colours chosen to suit frames, cladding or finishes where possible
  • One number for every site we cover
  • Failed material removed, not covered up

See what affects the cost or our accreditations.

Accreditations

Trusted. Accredited. Insured.