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

Haverstock washroom sealing

Work needed on a washroom in Haverstock? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Split or peeling sealant at shower trays
  • Stained sealant around pans and urinals
  • Panel joints letting water behind
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need washroom sealing in Haverstock?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Do you need washroom sealing in Haverstock?

Sometimes the sealant fails because something behind it is moving or wet: loose fixings, a dripping trap or damp in the wall. We check for that first and tell you if another trade is needed.

What tends to prompt an enquiry:

  • Complaints from staff, guests or users about tired washrooms
  • Sealant lifting along a tray edge
  • Panel joints letting water behind
  • Black mould inside silicone joints that cleaning can’t shift

Student showers at universities like Regent's University London, 1.4 miles to the south of Haverstock, see more use than most, and their silicone shows it.

What your quote should include

  • Are they CHAS accredited or on Constructionline?
  • What the guarantee covers, and for how long
  • Will CSCS-carded applicators be on site?
  • Which product they’ll use, and why it suits the joint

How to choose a sealant contractor

Washroom sealing in Haverstock, done properly

You can’t shut every toilet in an office, school or hotel at once. Work is phased by room or by section, so staff, guests or pupils always have somewhere to go. Tell us your site hours and access windows and we’ll plan around them. If you are dealing with sealant laid over old silicone and now peeling and sealant stained black around basins and showers, we can put it right. Whoever orders the work in Haverstock, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In a London area such as Haverstock, 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.

Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Where
Haverstock (NW3, NW5, NW1)
Region
Greater London
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Toilets, showers and kitchens around Haverstock

In London buildings, toilets and showers generally need to stay partly open, so resealing goes floor by floor, agreed with the facilities team. There are three care or nursing homes within about 2 miles of Haverstock. Care home wet rooms and en suites are used every day and cleaned hard, which tells on the silicone. Each room is kept out of use only as long as the sealant needs.

For buildings on a site such as Regis Road Business Park, which lies north-east of Haverstock, washrooms and tea points can be resealed in phases through the working week. Colleges such as Working Men’s College (to the east of Haverstock) have toilets, changing rooms and catering kitchens that can be resealed around term dates.

Haverstock is about 1 mile south-east of Hampstead, in Greater London. We cover Haverstock and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Greater London coverage takes in 764 places, large and small.

We take on washrooms and wet areas across the NW3, NW5 and NW1 postcode area, whatever the building. Buildings on Eton Road, Lawn Road and Ornan Road are within our area for washrooms and wet areas. Close to Haverstock, our area also takes in Belsize Park (1 mile north), Primrose Hill (1 mile south), South Hampstead (1 mile west), Swiss Cottage (1 mile west) and Chalk Farm (1 mile east). Bigger towns within reach include London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).

What’s near Haverstock

We work on buildings around Cecil Sharp House, Primrose Hill and St. Mary's Town and Country School and the streets around them. Also close by are St Paul's Church of England Primary School (less than half a mile south) and The Washington pub (under half a mile north). The nearest railway station is South Hampstead station, about 0.7 miles west of the centre. Nearby you’ll also find Wellington Hospital (0.9 miles south-west) and Isokon Gallery (0.5 miles north). The countryside around Haverstock includes Adelaide Nature Reserve and Primrose Hill.

Map of Haverstock © OpenStreetMap contributors

What we can’t put right

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be any of the following:

  • Vanity carcasses that have swollen
  • Fittings that move too much to hold a bead
  • Mould caused by poor ventilation, which will return until the extract is fixed

If you are not sure, just speak to us on 01277 525 020 or email drawings and photos and we’ll give you a straight answer before you book.

Where we work in Haverstock

  • Urinals and WCs
  • Showers, trays and wet room floors
  • Accessible toilets and changing rooms
  • Vanity units and basins
  • IPS panels and cubicles
  • Kitchens and tea points

Common questions from Haverstock clients

Do you take on jobs in Haverstock where loading and access are tightly controlled?

Yes, we plan every London job around the building’s own access rules. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly.

Do you work in occupied care homes around Haverstock?

Yes, with the manager deciding the order and timing of rooms. Any site rules, from signing in to infection control, are agreed before we start.

Can you handle several sites?

Yes. Several buildings can share a single quote, with one point of contact.

How many days will you need on site?

That varies with the scale of the job, but the work typically takes between a morning and a week or so, set by the number of rooms and the phasing you need. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.

Do your applicators hold CSCS cards?

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

Which silicone is right for commercial washrooms?

Sanitary silicone with anti-mould additives for most washroom joints. We use neutral-cure versions on stone, some metals and near mirrors.

Cost factors for washrooms and wet areas

Each job is priced on its own details. The main factors are:

  • How much existing material needs removing
  • Travel to remote or island sites
  • The total length or number of joints
  • Phasing around occupants

Pricing washrooms and wet areas depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

What to include in your enquiry

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

  • The asbestos register, for older buildings
  • Drawings or a marked-up plan, if available
  • Access details, including height
  • The site address and postcode

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

Doing it in-house

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Aftercare for building managers

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Avoid scourers and harsh descalers on silicone
  • Report split joints at trays and basins early
  • Photograph and log failed joints across the estate
  • Leave signs up until the cure time is over

Where possible, have shower floors and trays squeegeed after busy periods. Joints that sit wet for hours fail sooner.

In food areas, cleanability is something environmental health officers look at. Failed sealant around sinks and worktops is easy to put right in good time.

How a job runs

In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed before the next one starts. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  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. New anti-mould sealant goes in and is tooled neat.
  6. Rooms reopen after the cure time.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Tell us which areas need to stay in use
  • Arrange parking or a loading space

Quotes

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or email us if you’d rather talk the job through.

Ask for a quote

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