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

Ealing commercial sealant contractors

Commercial sealant contractors in Ealing, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Expansion joints with the sealant torn out
  • Damp patches where an external joint has failed
  • Gaps behind commercial kitchen worktops and sinks
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors in Ealing

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

Commercial sealant contractors in Ealing, done properly

If you look after more than one building, a single sealant contractor saves a lot of chasing. Single jobs, multi-site packages and planned programmes all come to us: send details, get a fixed quote, we seal, and a 12-month guarantee once it’s signed off. For sites in Ealing, the quickest start is to ring 01277 525 020 or use the quote form with a list of addresses. If you have mouldy silicone around WCs, urinals and vanity tops and hardened, chalky sealant on south-facing or exposed elevations, we can put it right. A specialist sealant contractor works differently from a general builder: in Ealing, that means joint design, primers and backing rod as standard.

In Ealing, as anywhere, the first joints to go are typically the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.

London’s commercial stock mixes period buildings turned into offices with modern glass and steel, which means one visit can cover joints against stone, brickwork, coated aluminium and shop-fit panels. Each surface gets its own preparation and, where it’s seen, a sealant colour that sits with it.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Ealing (W5, W13, W3, NW10)
Region
Greater London
Guarantee
A 12-month guarantee
Quotes
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

Looking after the joints

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Keep a record of which joints were resealed and when
  • Act on the first lifting edges rather than waiting
  • On pre-2000 buildings, share the asbestos information before work starts
  • Make sure ventilation in wet areas is switched on and working

Our workmanship on each job is backed by a 12-month guarantee. File the handover note with the building records so it’s easy to find if a joint we sealed gives trouble inside the 12 months.

Once sealant fails in a movement joint, grit and debris get in. The joint can no longer close, so its edges crack or spall. At that point it’s a repair job rather than a reseal.

How a job runs

Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before the next one starts. Planning a London job such as one in Ealing starts with access. Give us the hours we can be on site and we will schedule to suit.

  1. First, details come to us: photographs, drawings or a schedule of the areas, and a site visit is booked where it helps.
  2. Next comes a diagnosis and a fixed quote.
  3. We plan around your site hours and access windows, phasing the work where areas have to stay in use.
  4. Failed sealant is cut out and each joint cleaned back to sound, dry faces.
  5. Backing and primer go in where needed, then the chosen sealant is applied and tooled.
  6. We walk the completed areas with you and sign them off under the 12-month guarantee.

What we need from you

  • Tell us which areas need to stay in use
  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we’ll need

Quotes

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Read more

Questions about Ealing

Do you work in London buildings with loading restrictions?

Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Send the building rules and access times with your enquiry. We allow for the ULEZ, which covers every borough

Do you cover business parks and estates near Ealing, such as Phoenix Trading Estate?

Yes. Our area takes in Ealing and its surroundings, with estates and business parks such as Phoenix Trading Estate included. Photos and a short description are enough for a first look.

Can areas stay open during the work?

Most of the buildings we work in stay occupied. Only the area being sealed is closed, and the sequence is agreed in advance.

Does the weather affect the work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How do we get a quote?

The main factors are metres of joint, removal, access, the product and how many phases there are. For a fixed quote, send details through our quote form.

How do you choose the sealant?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

Surface by surface

Commercial kitchens and tea points

In kitchens, sealant lines at worktops, sinks and wall panels take heat, grease and daily cleaning. Proper degreasing comes before any new sealant.

Shop fronts and retail fit-outs

Most shops can’t close for a reseal. We plan around the access windows the store gives us, working in sections where that helps.

How the quote is worked out

We price every job individually. The things that drive the figure:

  • The total length or number of joints
  • Site requirements such as inductions and permits
  • The product specified
  • Any access equipment needed

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

What we need to price the job

Good information means a firmer quote. Helpful details to send:

  • Rough lengths or quantities, or drawings if you have them
  • When you need the work done
  • Asbestos survey details if the building is older
  • What the building is and how it’s used

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or email us if you’d rather talk the job through.

What happens if it’s left?

A cheaper quote sometimes means the old bead stays in. Sealing over looks tidy at handover, then lifts once the joint starts moving. Every quote we give includes full removal and preparation, because that’s what makes the new bead last. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.

The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.

Why us?

  • Products installed to the manufacturer’s instructions
  • Matching to RAL references, product permitting
  • Work carried out by CSCS-carded applicators
  • Over 20 years of commercial sealing

See our cost guide and our accreditations.

Sealant on show in Ealing’s commercial buildings

Contractor rules in London buildings can be strict, with inductions, permits and timed loading all normal. We plan around them and agree phasing so tenants and clients aren’t disrupted. The area within 2 miles of Ealing holds a good number of hotels. Hotel refurbishments are where a matched sealant colour earns its place: bathroom, bar and reception joints have to sit with the finishes.

For a shop at a centre such as Westway Shopping Park, 2.5 miles north-west of Ealing, tidy joints at counters and displays matter as much as the fixtures. A business with units at Phoenix Trading Estate and Boston Business Park needn’t use two contractors for its sealant. Industrial estates such as Phoenix Trading Estate, 1.3 miles to the south of Ealing, have offices, trade counters and welfare areas whose sealant ages like any other building’s.

Ealing is about 7 miles west of City of Westminster, in Greater London. Looking for commercial sealant contractors in Ealing? We can help, as we do across Greater London. 764 places across Greater London fall within our area, Ealing among them. Sites around London have their own page, roughly 9 miles from Ealing.

Commercial sites across W5, W13, W3 and NW10 are covered. We cover commercial and managed buildings on High Street, Coleridge Square and Station Road and the roads nearby. You will find Ealing on or near the A40 and B452. We also cover South Ealing (1 mile south), Pitshanger (1 mile north), Brentham Garden Suburb (1 mile north), Hanwell (1 mile west) and West Ealing (1 mile west). Bigger towns within reach include 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).

Local landmarks in Ealing

In Ealing, that means premises near The Red Lion pub, Christ the Saviour Church of England Primary School and Great Ealing School. You’ll also find Walpole Park (under half a mile north-east) and Library for Iranian Studies (1.5 miles east). Ealing’s nearest station is Ealing Broadway station, roughly 0.5 miles north-east. Nearby you will also find London Designer Outlet (3.3 miles north) and Gunnersbury Park House - Large Mansion (1.2 miles south-east). Open spaces near Ealing include Castlebar Hill and Middle Lake.

Map of Ealing © OpenStreetMap contributors

When it isn’t the sealant

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

  • Misted, cracked or failed glazing units (a glazier’s job)
  • Leaks from pipework, wastes or valves (that’s plumbing)
  • Cracking that needs a structural engineer to look at it

If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

Surfaces we seal

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

Trusted. Accredited. Insured.