Greater London · England
Angel Fire Rated Sealant
Fire rated sealant across Angel and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps filled with a product that is not fire-rated
- Gaps around pipes and cables through fire-resisting walls
- Open joints along the top of partitions
Fire rated sealant for homes and businesses in Angel
We don’t assess buildings or decide what fire stopping is needed; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. If you have gaps left after a refit or conversion and open joints along the top of partitions, we can help, on linear gaps, service penetrations and flats & HMOs alike.
In London’s blocks of flats, service risers and common parts have pipes and cables passing through walls and floors. In Angel, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
Every job comes with our 12-month guarantee, wherever you are in Greater London.
- Where
- Angel (N1, N1P, EC1V)
- Region
- Greater London
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Fire rated sealant around Angel
In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Angel has hotels and guest accommodation in and around it. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
If you look after a church, hall or community building such as St Mark's Church, service openings in its walls need the right fire-rated sealant, as in any building. Angel is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Angel is about 1 mile north-east of St Pancras, in Greater London. We carry out fire rated sealant for homes and businesses in Angel and the surrounding area, as part of our work across Greater London. We cover 764 towns and villages across Greater London, large and small.
Work in N1, N1P and EC1V works the same way as everywhere else we cover. Whether your property is on City Road, Noel Road and Dewey Road or a nearby road, we can help. Angel is on the A501, so it’s easy for us to get to. Nearby, we also carry out fire rated sealant in 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). Larger places 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).
What’s near Angel
Locally, jobs take us to homes and businesses close to Risinghill School, Pilsudski Institute of London and The Angel pub and the streets around them. Nearby too are Barnard Park (within half a mile north-west) and Elizabeth Garrett Anderson School (less than half a mile west). The closest station to Angel is London Kings Cross station, about 0.7 miles west. Well-known places in the area include Finsbury Health Centre (0.5 miles south) and Museum of Funeral History (within half a mile south). Green spaces nearby include Barnsbury Wood and St. James's Park Lake.
What happens if it’s left?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the work involved is often modest. In a flat in Angel, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Angel
- Anti-fungal sanitary silicone in wet areas
- Domestic, commercial and hotel work
- Any old sealant cut out fully, not covered over
- An ARBOMaster approved applicator
Take a look at what affects the cost or what customers say.
Do you need fire rated sealant in Angel?
Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it’s easy to leave unsealed when doors are changed.
Common reasons people contact us are:
- Open holes round services passing through fire walls
- Old fire sealant that has split or come away
- Seals cut through by electricians, plumbers or data installers
- Open joints along the top of partitions
Letting a property close to London Kings Cross station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What to look for in a quote
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
Places near Angel
What else we do in Angel
Landlords, agents and businesses in Angel
Letting agents often deal with us directly. Tell us the address, the job and how access works.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
What we do, step by step
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before we start. The work generally takes a few hours for a handful of gaps, and longer for a whole building. In Angel, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We plan the order of work and access, floor by floor or flat by flat.
- Old, damaged or unsuitable sealant is removed.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- Let us know about parking restrictions
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved.
Related advice
Common questions in Angel
Is parking a problem for a job in Angel?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
I let a flat near London Kings Cross station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you will get one quote.
What does intumescent mean?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one option among several. We use whichever the specification and tested details call for.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
How long will you be here?
That depends on how much there is to do, but as a guide it takes from a few hours to a few days, depending on the number of gaps and the access. We’ll give you a better idea when we quote.
Can you give us a record of the work?
Yes. Every gap we seal is listed with the product used so it’s there for the next inspection.
How the job changes by surface
Door frames
We deal with the gap around the frame, not the door. The door leaf, its seals and closer need a door specialist.
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We work through the gaps on your assessment, flat by flat if needed.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Keep photos of seals that will be hidden
- Ask which product was used before you paint
- Get damaged fire seals looked at promptly
Any fire seal that is cut or drilled needs resealing to its tested detail. If you need new services through a sealed wall, plan the fire stopping as part of the job.
Open gaps do not only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.
What affects the quote in Angel
The price is agreed before any work begins. It’s based on:
- The product the joint needs
- Any working-time requirements on site
- The old material and how stubborn it is
- Access and height
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What’s wrong with the joints now
- Where the property is
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.