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

Upper Holloway fire stopping

Need fire stopping in Upper Holloway? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Openings found when ceilings come down for a refit
  • Openings left by services added after handover
  • Fire-rated sealant that has cracked or shrunk back
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping for Upper Holloway sites

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

Why act early in Upper Holloway

It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. Getting scaffold, permits or access booked in Upper Holloway takes effort, so it makes sense to deal with every failing joint while access is in place.

A quote for service penetrations depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.

Why appoint us

  • Work to your specification and the manufacturer’s guidance
  • Old sealant cut out, never sealed over
  • A fixed quote before work starts
  • Fully insured

See our cost guide and how we’re accredited.

Fire stopping for commercial buildings in Upper Holloway

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. We work on small duct penetrations where the tested detail allows, linear gaps at wall heads and cable penetrations, and what we’re called in for most is fire sealant pulled out of the opening and improvised or mixed-product fire seals. For commercial sealant work in Upper Holloway, you deal with one contact from quote to sign-off, whether it’s one building or several.

In London, higher-risk residential buildings under the Building Safety Act bring extra scrutiny of fire-stopping records. We install what the designer or fire engineer has specified, and if you need records of the work, tell us and we’ll confirm with the quote.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Place
Upper Holloway (N19, N7, N6)
Region
Greater London
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What affects the price in Upper Holloway

A fixed quote reflects the actual work. It allows for:

  • How much existing material needs removing
  • Whether the work must be split into stages
  • Which sealant the job calls for
  • Location, for remote and island sites

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Sending details for a quote

The more we know, the firmer the quote. When you get in touch, include:

  • When you need the work done
  • The site address and postcode
  • Any specification or named product
  • Asbestos survey details if the building is older

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or use the quote form with what you know.

What sealant work can’t fix

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Issuing fire ratings or certificates for seals
  • Fire doors, dampers or other fire safety equipment
  • Plastic pipes whose detail calls for a collar or wrap

Not sure which it is? You can call 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.

Joints and surfaces we work on

  • Service gaps in risers
  • Small duct penetrations where the tested detail allows
  • Joints between fire-resisting walls and floors
  • Cable penetrations
  • Linear gaps at wall heads
  • Pipe penetrations

For managing agents and facilities managers

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Common questions from Upper Holloway clients

Can work at a site such as American University in London fit around teaching?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we will confirm them alongside the quote.

Is a hospital such as The Whittington Hospital somewhere you can work?

Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Do you certify or sign off fire stopping?

No. We don’t certify or sign off fire stopping, and we hold no third-party fire-stopping installer certificate. We work to the specification and the manufacturer’s installation guidance, and any records you need can be confirmed with the quote.

Will fire-rated sealant work on every penetration?

No. Sealant is the right product only where the tested detail says so. Large openings, many plastic pipes and some ducts need collars, wraps, batts or boards, and we will tell you when that applies.

Is BS 476 being phased out?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029. After that, the European classification under BS EN 13501-2 is the route. Your designer will choose products with the right evidence.

Do you hold third-party fire-stopping installer certification?

No. We don’t hold a third-party fire-stopping installer certificate. We are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded. If your contract requires third-party installer certification, we are not the right fit for that package.

How long will the new sealant 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.

Fire-rated sealing for Upper Holloway buildings

Plenty of hotels sit less than 2 miles from Upper Holloway. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. With tenants changing and fit-outs following, London buildings see service routes altered again and again. We seal to the specification and the product’s tested detail, working within the building’s permits.

On a hospital site such as The Whittington Hospital, less than half a mile north-west of Upper Holloway, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. Campus buildings at universities such as American University in London (to the east of Upper Holloway) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Tenant changes at centres like Arena Shopping Park (1.8 miles north-east of Upper Holloway) often mean new services through walls between units.

Upper Holloway is about 2 miles east of Hampstead, in Greater London. Anywhere in N19, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Upper Holloway is one of 764 places we cover in Greater London for service penetrations.

Business premises anywhere in N19, N7 and N6 are within our area. Streets here include Ward Road, Kiver Road and Foxham Road, and sites on any of them can send details for a fixed quote. Upper Holloway sits on or close to the A103, which helps when planning parking and deliveries for the job. Sites close to Upper Holloway are covered too, including Tufnell Park (1 mile south), Dartmouth Park (1 mile south-west), Highgate (1 mile north-west), Nag's Head (1 mile south-east) and Holloway (1 mile south-east). Nearby towns on our patch include London (5 miles south), City of Westminster (4 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), St Pancras (3 miles south) and Shoreditch (4 miles south-east).

Near you in Upper Holloway

Recent enquiries here include premises near City of London Academy, Whittington Park and The Mother Red Cap pub. Nearby too are Asanté Academy of Chinese Medicine (1.2 miles north-west) and Vaughan Williams Memorial Library (2 miles south). There’s a railway station in Upper Holloway itself: Upper Holloway station. A little further out are The Mall Wood Green (2.3 miles north-east) and Royal Northern Hospital (0.5 miles south-east). For a walk, there’s Dartmouth Park Hill and Parkland Walk.

Map of Upper Holloway © OpenStreetMap contributors

From enquiry to sign-off

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before the next one starts. Planning a London job such as one in Upper Holloway starts with access. Send the building rules and access times with your enquiry.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Let us know about inductions and permits
  • Have the specification and drawings to hand
  • Clear stock, furniture or equipment away from the joints

Get a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Get a price

Advice

How the job changes by surface

Metal pipes

Metal pipes conduct heat, so their details often call for extra measures along the pipe. If the detail needs something beyond sealant, we tell you.

Cables and cable bundles

Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. Bundle size, cable type and the space between cables all matter, so we check before sealing.

Accreditations

Trusted. Accredited. Insured.