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

Sealant applicators in Holborn

Sealant work in Holborn for main contractors, managing agents and facilities managers: sealant work for offices, shops, hotels and other commercial buildings, quoted at a fixed price.

  • Frame sealant that has cracked, shrunk or pulled away
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Earlier reseals applied straight onto the failed bead
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors for Holborn sites

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

Sealant on show in Holborn’s commercial buildings

Plenty of hotels sit less than 2 miles from Holborn. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet, with rooms done in turn while the rest stay let. Contractor rules in London buildings can be strict, with inductions, permits and timed loading all normal. We work within them, one zone at a time.

Offices and shops close to stations such as Farringdon station (under half a mile east of Holborn) tend to be busy all day, so sealant work is planned around opening hours. Trade counters and showrooms on estates such as Grand Vitesse Industrial Estate, 1.2 miles to the south-east of Holborn, need neat joints where clients see them. Units at places like Brunswick Centre (0.5 miles north-west of Holborn) are refitted as brands change, and the joints have to suit each new scheme.

Holborn is about 2 miles north-west of London, in Greater London. Any commercial site in Holborn is covered. We work across 764 places in Greater London, large and small.

Commercial sites across WC1X, WC1N and EC1R are covered for sealant joints. We cover commercial and managed buildings on Shoe Lane, Drury Lane and New Square. Main routes into Holborn include the A4 and A40, which helps when planning parking and deliveries for the job. Nearby places we also cover include Farringdon (1 mile east), St Pancras (1 mile north-west), Clare Market (1 mile south), Smithfield (1 mile east) and Temple Bar (1 mile south) for sealant joints. Bigger towns within reach include Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Brompton (3 miles south-west) and Stockwell (4 miles south).

Around Holborn

In Holborn, that means premises near The Yorkshire Grey pub, British Library of Political and Economic Science and City Academy. Other local landmarks include Elizabeth Garrett Anderson School (0.9 miles north) and Lincoln's Inn Fields (under half a mile south-west). Holborn has its own railway station: Farringdon station. A little further out are Montfichet's Tower (0.7 miles south-east) and Brunswick Centre (0.5 miles north-west). Green spaces nearby include Barnsbury Wood and Ludgate Hill.

Map of Holborn © OpenStreetMap contributors

Sealant applicators in Holborn

How long a joint lasts is decided before any sealant leaves the gun. Silicone has no grip on cured silicone, so the failed bead is cut out completely, then both faces are cleaned back to sound, dry material with no dust or grease on them. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead. If you have a top-up bead over failed sealant, now lifting and frame sealant that has cracked, shrunk or pulled away, we can help, on floor and threshold joints, washrooms and tea points and movement joints in walls and floors alike. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Holborn is the same: the right product in a properly prepared joint.

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

Buildings in a London area such as Holborn rarely close for maintenance: offices with staff at their desks, shops trading below flats and receptions that can’t be roped off for long. Work is split into zones agreed with the building or facilities manager, so the premises keep working around us, and where a brand finish matters, the sealant colour is agreed first.

We stand by our work with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.

Place
Holborn (WC1X, WC1N, EC1R)
Region
Greater London
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Surface by surface

Washrooms and toilets

Washroom joints take water, cleaning chemicals and constant use. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone, phasing the rooms so not every toilet is closed at once.

Facade and cladding joints

On a facade, a failed joint is often only visible close up. Close-up photos or a site visit tell us what’s needed, with colours confirmed for the product chosen.

Looking after the joints

Once the work is signed off, a little attention goes a long way:

  • Note dates and locations of sealant work for future planning
  • Deal with small splits before they become leaks
  • Check joints after other trades have worked nearby
  • Keep washroom and kitchen extraction working

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records.

Occupiers often notice failing sealant before the facilities team does, and in a hotel, office or shop it makes the whole space look neglected. Planned replacement saves fielding the same complaint again and again.

Why it’s worth doing now in Holborn

Patching the worst lengths can be the right call on a tight budget. Where the remaining sealant is just as old, it tends to fail soon after, so access and set-up end up being paid for twice. We can price both options so you can decide on the facts. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

What you get with us

  • A range of standard colours, depending on the product
  • Failed material removed, not covered up
  • Sealing commercial buildings since 2005
  • Fully insured

Read what affects the cost or our accreditations.

Quoting for work in Holborn

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • The product specified
  • How accessible the joints are
  • The site’s rules and procedures
  • Distance, for remote addresses

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.

Sending details for a quote

For an accurate fixed quote, we need to understand the site. Send us:

  • The postcode of the building
  • What the building is and how it’s used
  • Any specification or named product
  • Photos of the joints, close up and from further back

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to speak to us on 01277 525 020 or email us.

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • A failed roof covering or waterproofing membrane
  • Structural cracks or movement the joints weren’t designed for
  • Water from a services leak rather than a joint

If you are not sure, just call the office on 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.

Where we work in Holborn

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

Common questions from Holborn clients

Does a hotel in Holborn need to shut while its sealant is renewed?

In most cases no closure is needed: we work room by room or floor by floor. Housekeeping and our team agree each day’s rooms.

Can you work at a site such as Grand Vitesse Industrial Estate, by Holborn?

Yes, sites like Grand Vitesse Industrial Estate are within our area, along with the rest of Holborn. Send details of the unit and the work through our quote form for a quick quote.

What guarantee do you give on resealing?

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

How long will the new sealant last?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

Can weather delay the job?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Do you work in Holborn?

Yes. We cover Holborn, and you can give us a call on 01277 525 020 or email drawings and photos to get started.

Who decides which product is used?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Diagnose, treat, sign off

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. All of Greater London is in the ULEZ, and kerbside space in Holborn can be scarce. 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. The cause is diagnosed and the scope priced as a fixed quote.
  3. Where parts of the building must stay open, the work is phased.
  4. Every failed bead is removed rather than covered.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Before we start on site

  • Tell staff and tenants when we’ll be in
  • Send your site hours and access windows
  • Clear stock, furniture or equipment away from the joints

Request a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Get a price

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