Greater London · England
College Park Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for College Park, backed by a 12-month guarantee. Ask us for a quote.
- Seals cut through by electricians, plumbers or data installers
- Unsealed gaps where pipes and cables go through a wall
- Open gaps behind door architraves
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Fire rated sealant in College Park
Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. If you have unsealed gaps where pipes and cables go through a wall and holes left by a change of layout, we can put it right.
In London, a commercial job often starts with access: loading bays, building rules and lifts. For a building in College Park, we agree timings and access before anything starts.
All our work is covered by a 12-month guarantee.
- Place
- College Park (NW10, W10, NW26)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of gaps, and longer for a whole building, and the area is left clean. In College Park, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your files.
Before we arrive
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we’re working on
Ask for a quote
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
Advice
Leave it or put it right?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the work involved is often modest. In a flat in College Park, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or email us for an honest opinion and a quote.
Why book with us
- Homes, businesses and hotels
- Old sealant always removed completely
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
Read our cost guide or our reviews.
FAQs for College Park
Do you take on hotel work around College Park?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Do you work for landlords with property near Willesden Junction station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you remove the old sealant?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
How long does fire rated sealant take?
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 will give you a better idea when we quote.
Do you seal gaps around fire door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant. The door leaf and its hardware need a door specialist.
Will we have a record of what was sealed?
Yes. We record the locations we have sealed and the products used for your files.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Is intumescent sealant the same as fire-rated sealant?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent ones swell in heat, and they’re one option among several. We use whichever the specification and tested details call for.
Aftercare tips
After the cure time, these simple habits help:
- Keep the record of products and locations with your fire safety documents
- Check risers, ceiling voids and cupboards during building checks
- Flag any open gap you spot round a pipe or cable
- Include fire stopping when you schedule refits
Any fire seal that’s cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Get it sealed and recorded so you can show it was dealt with.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Fire risk assessments, which need a qualified assessor
- Big openings where sealant alone isn’t the tested solution
- Problems with the door itself rather than the gap around the frame
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Linear gaps
- Pipe & cable gaps
- Service penetrations
- Plasterboard & masonry
- Door frames
- Flats & HMOs
Workplaces and buildings in College Park
College Park 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. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.
If you let a flat or house near Willesden Junction station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Schools such as Kenmont Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
College Park is about 1 mile south-east of Harlesden, in Greater London. We provide fire rated sealant to homes and businesses in College Park and nearby, as part of our work across Greater London. College Park is one of 764 towns and villages in Greater London we cover for fire rated sealant. We also work in London, around 6 miles away.
Postcode districts we cover here for fire rated sealant: NW10, W10 and NW26. That includes homes and businesses on Tubbs Road, Waldo Road and Hythe Road. If you are just outside College Park, we cover Kensal Green (1 mile east), Old Oak Common (1 mile south-west), Harlesden (1 mile north-west), Willesden Green (1 mile north) and Kensal Rise (1 mile east). Larger places within reach include London (6 miles east), City of Westminster (4 miles east), Marylebone (4 miles east), Kensington (3 miles south-east), St Pancras (5 miles east) and Shoreditch (7 miles east).
Near you in College Park
In College Park, that means homes and buildings near Newman Catholic College, Brondesbury College and Little Wormwood Scrubs and the streets around them. There’s a railway station in College Park itself: Willesden Junction station. A little further out are Westfield London (1.7 miles south) and Brent Museum and Archives (1.1 miles north). For a walk, there’s Westbere Copse and The Long Water.
Common problems we fix in College Park
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Most people get in touch after spotting something like this:
- Sealant items on a fire risk assessment action list
- Cracked or shrunken fire-rated sealant
- Ordinary sealant used where a fire-rated product was needed
- Unsealed gaps where pipes and cables go through a wall
If you look after a church, hall or community building such as Saint Mark's, gaps around pipes and cables are worth checking after any building work there.
Comparing quotes
- What product goes in the joint
- What happens if they find a problem under the old sealant
- What insurance they hold
- The length of the guarantee
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.