Fire stopping in Angel
Fire-rated and intumescent sealing of service penetrations and linear gaps in Angel. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Damaged fire seals in risers and voids
- Builders’ foam or ordinary silicone in compartment walls
- Fire-rated sealant that has cracked or shrunk back
Fire stopping for businesses in Angel
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping in Angel: the local picture
Angel has a good number of hotels close by, all within 2 miles. In hotels, bedroom and corridor walls are typically fire-resisting, so services added in a refit need sealing with the specified product. In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail.
At a healthcare site like Moorfields Eye Hospital (City Road campus), which lies south-east of Angel, new services through compartment walls are a constant, and each needs the specified seal. On estates like Roman Way Industrial Estate, 0.8 miles north-west of Angel, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.
Angel is about 1 mile north-east of St Pancras, in Greater London. Angel sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Angel is one of 764 places in Greater London on our list.
Anyone looking for fire stopping in N1, N1P and EC1V gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include City Road, Noel Road and Dewey Road. Access to Angel is via the A501. Nearby places we also cover include Pentonville (1 mile north-east), Clerkenwell (1 mile south), Islington (1 mile north), St Pancras (1 mile south-west) and Kings Cross (1 mile west). Bigger towns within reach include Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (3 miles north-west), Ruislip (13 miles west), Brompton (4 miles south-west) and Stockwell (4 miles south).
Local landmarks in Angel
In Angel, that means premises near Risinghill School, Pilsudski Institute of London and The Angel pub, among other places. Nearby too are Barnard Park (less than half a mile north-west) and Elizabeth Garrett Anderson School (less than half a mile west). The nearest railway station is London Kings Cross station, about 0.7 miles west. Nearby you will also find Finsbury Health Centre (0.5 miles south) and Museum of Funeral History (less than half a mile south). Not far away are Barnsbury Wood and St. James's Park Lake.
How we handle fire stopping in Angel
Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. If the detail calls for something other than sealant, we say so rather than force sealant into it. We work on cable penetrations, linear gaps at wall heads and pipe penetrations, and what we are called in for most is fire sealant pulled out of the opening and unsealed penetrations discovered above suspended ceilings. Searching for sealant specialists in Angel? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Taller residential buildings in London may fall under the Building Safety Act’s higher-risk regime, where fire-stopping records get close attention. 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.
Our workmanship is guaranteed for 12 months, in Angel as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- Angel (N1, N1P, EC1V)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Nearby places to Angel
What else we do in Angel
Maintenance after handover
To get the most from the new sealant:
- Don’t let anyone top up a fire seal with the wrong product
- Have penetrations checked while they can still be seen
- Agree the fire-stopping specification before services go in
- Make fire stopping part of every scope that crosses a fire-resisting wall
During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.
Make reporting new openings part of every permit to work in service areas. It costs little and catches breaches early.
What affects the price in Angel
Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:
- Site requirements such as inductions and permits
- Specialist products, such as fire-rated or hygienic sealants
- Whether old sealant has to be cut out first
- Travel to remote or island sites
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What we need to price the job
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Asbestos survey details if the building is older
- The product your specification calls for
- Rough lengths or quantities, or drawings if you have them
- When you need the work done
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, call 01277 525 020 or email the details over.
How a job runs
Site rules come first: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Mineral wool or other backing is fitted where required.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
What we need from you
- Agree which areas must stay open
- Send your site hours and access windows
- Warn occupants and staff about the work
Getting a fixed quote
For a fixed quote, call 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
Advice
What sealant work can’t fix
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Plastic pipes whose detail calls for a collar or wrap
- Walls or floors that aren’t fire-resisting to begin with
- Designing or specifying fire stopping, which sits with the designer or fire engineer
Not sure which it is? You can ring 01277 525 020 or email the details over and we’ll tell you honestly.
Where we work in Angel
- Linear gaps at wall heads
- Pipe penetrations
- Cable penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Service gaps in risers
FAQs: Angel
Will you work in a care home in Angel without moving residents out?
Yes, with the manager deciding the order and timing of rooms. Tell us about any infection-control or safeguarding requirements and we’ll work to them.
Is a hospital such as Moorfields Eye Hospital (City Road campus) somewhere you can work?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.
Who decides which product is used?
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.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
How do I request a quote?
There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
Does the weather affect the work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Owners, agents and contractors
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so the building keeps working while we do.
Common problems we fix in Angel
Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint, and a product not tested for that movement may crack. The tested detail for a linear joint states the width and movement it covers.
Site and facilities staff are often the first to spot these:
- Fire-stopping items raised at inspection or handover
- Damaged fire seals in risers and voids
- Unsealed penetrations discovered above suspended ceilings
- Fire-rated sealant that has cracked or shrunk back
Shop fits in centres such as Brunswick Centre (to the south-west of Angel) can bring new services through fire-resisting walls between units, which then need the specified seal.
Comparing quotes
- Their pre-qualification and accreditations
- The terms of the workmanship guarantee
- Who will actually carry out the work
- Their plan for phasing and protecting the area