Hertfordshire · England
Fire-rated sealant in Boxmoor, Hertfordshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Boxmoor, with a 12-month guarantee on every job. Ask us for a quote.
- Unsealed gaps around fire door frames
- Holes left by a change of layout
- Open holes round services passing through fire walls
Fire rated sealant in Boxmoor, done properly
Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. What we do is apply the right product to that specification, properly and neatly. We work on plasterboard & masonry, flats & HMOs and pipe & cable gaps, and the jobs we see most are door frames with gaps between frame and wall and fire stopping disturbed by later work.
For a pub, café, guest house or shop in or near Boxmoor, the washrooms and kitchen need the same attention as a big site.
Your job is guaranteed for a year, as with all our work.
- Location
- Boxmoor (HP1, HP3, HP2)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about fire rated sealant in Boxmoor
Is Boxmoor in your area for fire rated sealant?
Yes. We work across London and the South East, and Boxmoor is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will send you a clear quote.
Do you cover smaller places like Boxmoor?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
What fire rating will the seal have?
Ratings and certificates are not something we issue. The performance comes from the product’s tested details and the specification from your assessor or designer.
How long will you be here?
That depends on the amount of work, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We’ll give you a better idea when we quote.
How much does fire rated sealant cost in Boxmoor?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email with a short description of the job.
How to look after the new joints
So the new joints stay in good condition:
- Include fire stopping when you schedule refits
- Check risers, ceiling voids and cupboards during building checks
- Keep the record of products and locations with your fire safety documents
- Tell trades working in the building that fire seals must be put back
Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some can’t.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes and the job gets bigger.
When something else is needed
A few problems are outside what sealant work can do:
- Big openings where sealant alone is not the tested solution
- Assessing a building’s fire safety
- Construction that does not provide fire resistance on its own
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Flats & HMOs
- Service penetrations
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
- Linear gaps
Landlords, agents and businesses in Boxmoor
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.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Why deal with it now?
Paying for fire stopping that has to be redone is a false economy. If the details weren’t followed, the seal may need redoing once someone inspects it. Around Boxmoor, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why Boxmoor customers choose us
- ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
- 180+ five-star Google reviews
- Homes, businesses and hotels
Read our cost guide or what customers say.
Quotes for fire rated sealant in Boxmoor
The quote reflects the job in front of us. We look at:
- The old material and how stubborn it is
- The type of sealant required
- Access and height
- How many areas need sealing
Leaving a failed joint generally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- Where the property is
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand.
Do you need fire rated sealant in Boxmoor?
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Knocks, maintenance and building work damage it further.
It’s worth asking for a quote if you see:
- Fire seals that have cracked with movement
- Linear gaps at the head of walls
- Fire stopping disturbed by later work
- Ordinary sealant used where a fire-rated product was needed
If you let a flat or house near Hemel Hempstead station, any gap left by new services in shared walls should be closed with a fire-rated product.
Before booking anyone
- How the joint is cleaned and prepared
- Which colour the sealant will be
- How hidden problems are handled
- What product goes in the joint
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes from a few hours to a few days, depending on the number of gaps and the access. For a job in Boxmoor, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Preparing for the visit
- Keep children and pets away from the work area
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
Fire rated sealant in Boxmoor: local notes
Boxmoor is part of Hemel Hempstead, one of the post-war new towns. Like the other new towns, Hemel Hempstead was planned with its own areas for industry and business, so workplaces sit close to the homes. Their washrooms, kitchens and fire-rated joints need the same upkeep as anywhere. 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’re given, installing the product to its tested details.
If you look after a building such as Boxmoor Primary School, service openings in fire-resisting walls need checking after any refurbishment. Community buildings like Church of St John the Evangelist and Attached Church Hall are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.
Boxmoor is about 1 mile south-west of Hemel Hempstead, in Hertfordshire. We carry out fire rated sealant for homes and businesses in Boxmoor, as part of our work across Hertfordshire. Our area takes in 381 places across Hertfordshire. There’s also a page for London, roughly 24 miles from Boxmoor.
All of HP1, HP3 and HP2 is covered for fire rated sealant. If you need fire rated sealant at a property on Cardy Road, Heath Lane and London Road or anywhere close by, our applicators can take on the job. Main roads around Boxmoor include the A4251, so getting to you is simple. Neighbouring places we cover for fire rated sealant include Warner's End (1 mile north), Grovehill (1 mile north-east), Woodhall Farm (1 mile north-east), Apsley (1 mile south-east) and Hemel Hempstead (1 mile north-east). We also work in nearby towns such as Watford (7 miles south-east), St Albans (7 miles east), Welwyn Garden City (13 miles east), Harpenden (8 miles north-east), Hatfield (11 miles east) and Borehamwood (11 miles south-east).
Local landmarks in Boxmoor
Typical jobs here are in homes near Gadebridge Park, The Hemel Hempstead School and Fishery Inn. Boxmoor has its own railway station: Hemel Hempstead station. Well-known places in the area include Hemel Hempstead Hospital (0.7 miles north-east). For a walk, there’s Long Deans.