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

South Ealing commercial sealant contractors

Our CSCS-carded applicators take on sealant work for offices, shops, hotels and other commercial buildings in South Ealing. Send photos or drawings for a fixed quote.

  • Damp patches where an external joint has failed
  • Wall and floor joints that have lost their seal
  • Mouldy silicone around WCs, urinals and vanity tops
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Commercial sealant contractors across South Ealing

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

Commercial sealant contractors in South Ealing, done properly

On a commercial site, sealant turns up in more places than people expect: washroom fittings, kitchen worktops, window boards, partition heads and the line where floors meet walls. Outside, it closes facade joints, frame perimeters and movement joints against the weather. We deal with internal and external sealant joints alike, matching the sealant to the location instead of using one product throughout. The enquiries we see most involve external beads that have gone brittle and cracked and mouldy silicone around WCs, urinals and vanity tops, across washrooms and tea points, external facade joints and floor and threshold joints. One point of contact handles commercial sealant work in South Ealing from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Occupied buildings in South Ealing need the work phased: we agree the order with you and hand back each area with its cure time.

Much of the planning for a London commercial job is about getting in and out: loading bay slots, goods lifts, permits to work and somewhere to keep materials. With access agreed, we work through the sealant joints a section at a time, keeping disruption to tenants low.

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

The Mastic Doctor team beside their liveried vans in front of an office building
Where
South Ealing (W5, W13, TW8)
Wider area
Greater London
Cover
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Honest limits

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Faulty windows rather than failed perimeter sealant
  • Structural cracks or movement the joints weren’t designed for
  • A dripping trap, valve or pipe behind a fitting

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

Surfaces we seal

  • Floor and threshold joints
  • External facade joints
  • Washrooms and tea points
  • Window and door perimeters
  • Movement joints in walls and floors
  • Kitchen worktops and splashbacks

Common problems we fix in South Ealing

Outside, sunlight and rain wear sealant down year after year. UV hardens the surface while wind and rain work at the edges. A hardened bead can’t follow the building any more.

Clients typically get in touch after noticing one or more of the following:

  • Gaps behind commercial kitchen worktops and sinks
  • Earlier reseals applied straight onto the failed bead
  • Expansion joints with the sealant torn out
  • Water staining near frames, panels or ceilings

In a retail centre such as Kew Retail Park, which lies south-east of South Ealing, new tenants mean new shop fits, and the sealant at counters, frontages and floor edges is part of the finish.

Comparing quotes

  • What the guarantee covers, and for how long
  • The named product and why it was chosen
  • Their approach to joint depth and backing
  • Their public liability cover

How to choose a sealant contractor

Commercial sealant contractors in South Ealing: the local picture

The area within 2 miles of South Ealing holds a good number of hotels. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet; work is planned so the hotel keeps trading. South Ealing has at least three named business or industrial parks inside a 3-mile radius. Sites like these see regular refits, with shopfronts, offices and staff areas to seal.

Occupiers with premises at both Phoenix Trading Estate and West Cross Industrial Park could have the sealant at each handled under one quote. Trade counters and showrooms on estates such as Phoenix Trading Estate (0.6 miles south of South Ealing) need neat joints where customers see them.

South Ealing is about 1 mile south of Ealing, in Greater London. Looking for commercial sealant contractors in South Ealing? We can help. We work across 764 places in Greater London, large and small. We also cover London, some 9 miles away.

Work on sealant joints is covered throughout W5, W13 and TW8, whatever the building. We cover commercial and managed buildings on South Road, Elers Road and Carew Road and the roads nearby. We also cover Ealing (1 mile north), Hanwell (1 mile north-west), West Ealing (2 miles west), Pitshanger (2 miles north) and Brentham Garden Suburb (2 miles north). Further afield, our area takes in London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).

Around South Ealing

Locally, jobs take us to sites close to Lammas Park, Ealing Independent College and Ealing Park Tavern, among other places. Also close by are Library for Iranian Studies (1.4 miles east) and Great Ealing School (less than half a mile north). For rail, the closest station is Brentford station, roughly 0.9 miles south of the centre. Well-known places in the area include Gunnersbury Park House - Large Mansion (0.9 miles east) and Ealing Hospital (1.7 miles west). Not far away are Kew Gardens Lake and Castlebar Hill.

Map of South Ealing © OpenStreetMap contributors

On site: what to expect

On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself typically taking as long as the agreed scope needs, from a single visit to a programme spread over several weeks. 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. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Old sealant is cut out completely, never sealed over.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Point out any areas we must not close
  • Move anything stored against the joints

Quotes

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email a schedule or drawings.

Get a quick quote

Read more

Your questions answered

Do hotels near South Ealing have to close for sealant work?

In most cases no closure is needed: we work room by room or floor by floor. We agree the order of rooms and the timings with you before we start.

Do you work in London buildings with loading restrictions?

Yes, most London buildings have access rules of some kind, and we plan around them. The building manager’s rules go straight into our method.

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.

How is commercial sealant work priced?

Start with whatever information is to hand. Questions or a site visit follow where needed, then a fixed quote.

Do you take on multi-site sealant work?

Yes, across South East England, Greater London and all of Scotland. Each site gets the same process and a single contact.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Does commercial sealant work come with a guarantee?

Each job sits under our 12-month guarantee from handover. Keeping joints clean and inspected helps them last well beyond that.

How the quote is worked out

A fixed quote reflects the actual work. It takes account of:

  • Removal of failed or old sealant
  • Backing rod, priming and other preparation
  • Specialist products, such as fire-rated or hygienic sealants
  • The total length or number of joints

There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.

What we need to price the job

We can often quote from photos and a few details. It helps to include:

  • Whether the building will be occupied during the work
  • The asbestos register, for older buildings
  • A wide shot and a close-up of the area
  • Anything awkward about access or site hours

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

When to bring in a specialist

Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

There’s also the paperwork. 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.

Keeping the joints sound

Keep the joints in good shape with a few simple steps:

  • Report cracked or peeling sealant early
  • Keep a record of which joints were resealed and when
  • Check the asbestos register before anyone disturbs old sealant in an older building
  • Keep abrasive pads and scrapers off resealed joints

In washrooms and kitchens, extraction makes a real difference to sealant life. Extraction that isn’t working keeps the joints wet, which is how mould gets back in. It’s worth having fans checked while the sealant is fresh.

Each spell of wet weather pushes more water through an open joint. It can run into cavities, insulation and internal finishes long before anyone sees a stain. Resealing early keeps the problem in the sealant and out of the building.

Accreditations

Trusted. Accredited. Insured.