Greater London · England
Northumberland Heath Fire Rated Sealant
Fire rated sealant for Northumberland Heath, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Standard silicone or caulk in a fire-stopping gap
- Linear gaps at the head of walls
- Joints picked up in a fire-stopping survey
Fire rated sealant in Northumberland Heath
Door frame gaps, linear joints and holes around services all have their own details. We check the size and the substrate before choosing the product, then apply it to the depth its tested detail calls for. We work on door frames, plasterboard & masonry and linear gaps, and common reasons people get in touch are door frames with gaps between frame and wall and new service routes left unsealed after building work.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, whether that’s washroom resealing or fire-rated sealant around service openings. Out-of-hours working can be arranged where a building in Northumberland Heath cannot close.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Northumberland Heath (DA8, DA7)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Construction that doesn’t provide fire resistance on its own
- Deciding what fire stopping a building needs
- Certifying a building or signing off its fire safety
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Linear gaps
- Service penetrations
- Door frames
- Flats & HMOs
- Plasterboard & masonry
- Pipe & cable gaps
What happens on the day
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take from a few hours to a few days, depending on the number of gaps and the access. In Northumberland Heath, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- We remove any old or unsuitable filler and clean the gap.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- We record the locations and products used for your records.
Before we arrive
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
Advice
Common questions in Northumberland Heath
Can parking be tricky for a visit in Northumberland Heath?
Parking in Northumberland Heath, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Do you work for landlords with property near Barnehurst station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Is there a guarantee?
Yes. All our work carries a one-year guarantee.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Do you do fire sealant around door frames?
Yes, if the gap is within the product’s tested range. Our work is the gap around the frame and we’ll tell you if we spot problems with the door.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
How long does the job take?
That depends on how much there is to do, but most jobs take anything from a few hours to several days, depending on how many gaps there are. We will give you a better idea when we quote.
Landlords, agents and businesses in Northumberland Heath
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Workplaces and buildings in Northumberland Heath
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 work to the specification you are given, installing the product to its tested details. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.
For site and facilities teams at buildings such as King Henry School, service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as St Paul's, older buildings that have had new heating or wiring often have service gaps worth checking. Northumberland Heath is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Northumberland Heath is about 3 miles north-west of Dartford, in Greater London. We provide fire rated sealant to homes and businesses in Northumberland Heath and nearby, as part of our work across Greater London. Northumberland Heath is one of 764 places in Greater London where we work for fire rated sealant. For nearby work, see our London page.
All of DA8 and DA7 is within our area for fire rated sealant, from the main roads to the quietest streets. Streets in the area include Mill Road, Penda Road and Chalk Road, all of which we cover. Neighbouring places we cover for fire rated sealant include Bexley Riverside (1 mile south-east), Erith (1 mile north), Barnehurst (1 mile south), Belvedere (1 mile north-west) and Lessness Heath (1 mile north-west). We also work in nearby towns such as London (11 miles west), City of Westminster (14 miles west), Marylebone (14 miles west), St Pancras (13 miles west), Shoreditch (11 miles west) and Walthamstow (11 miles north-west).
Near you in Northumberland Heath
Typical jobs here are in homes near Trinity School, The Royal Oak pub and Braeburn Park, among other places. The nearest railway station is Barnehurst station, about 0.6 miles south-west of the centre. Nearby you will also find Erith Museum (0.7 miles north-east) and Erith and District Hospital (under half a mile north). Not far away are Crossness Nature Reserve.
Towns and villages near Northumberland Heath
More services for Northumberland Heath
What affects the quote in Northumberland Heath
We don’t publish a price list. What we look at:
- The product the joint needs
- When we can work, for business premises
- The size of the job
- Whether the work is at height
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Helping us quote
When you call or email, these details help:
- Access, such as stairs, a lift or height
- The type of property
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Keep the record of products and locations with your fire safety documents
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Include fire stopping when you schedule refits
- Take photos of fire stopping before ceilings or boxing go back
Any fire seal that’s 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.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes.
Surface by surface
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first.
Flats and HMOs
In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We seal the gaps your assessor has identified room by room.
Why act early in Northumberland Heath
Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Northumberland Heath.
Combining jobs into one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- Rated 4.9 stars on Google
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- Homes, businesses and hotels