Fire Stopping in Hudnall
Fire-rated and intumescent sealing of service penetrations and linear gaps across Hudnall, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Head-of-wall gaps with no fire seal
- Improvised or mixed-product fire seals
- Penetration schedules that need working through
Fire stopping across Hudnall
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
When to call us in Hudnall
When a seal departs from its tested detail, the evidence no longer covers it. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.
Things that typically lead to an enquiry:
- Seals that don’t match their tested detail
- Openings found when ceilings come down for a refit
- Unsealed openings around new pipes and cables
- Fire-stopping items raised at inspection or handover
Hotels like The Bridgewater Arms Hotel (to the north-west of Hudnall) are refurbished in phases, and each phase can open up compartment walls.
What your quote should include
- How the existing material will be dealt with
- What level of public liability insurance do they hold?
- The terms of the workmanship guarantee
- Who will actually carry out the work
Fire stopping in Hudnall
We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. What we bring is careful installation of the specified sealant, to the maker’s guidance. We work on service gaps in risers, cable penetrations and small duct penetrations where the tested detail allows, and what we’re called in for most is seals that don’t match their tested detail and openings found when ceilings come down for a refit. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Hudnall is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Hudnall, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Location
- Hudnall (HP4)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It won’t put right:
- Signing off or certifying a building’s fire stopping
- Gaps in walls that were never built as compartment walls
- Writing the fire-stopping specification
If you are not sure, just speak to us on 01277 525 020 or email a schedule or drawings and we will give you a straight answer.
Surfaces we seal
- Pipe penetrations
- Cable penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Linear gaps at wall heads
What sets the cost
These are the things that shape the price:
- Backing rod, priming and other preparation
- The site’s rules and procedures
- Distance, for remote addresses
- Whether old sealant has to be cut out first
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What to include in your enquiry
It doesn’t need to be a full survey. A few details are enough to get going:
- The site address and postcode
- When you need the work done
- Any specification or named product
- Whether an asbestos survey exists
To get a fixed quote, give us a call on 01277 525 020 or send photos by email, telling us the site location and the nature of the job. You can also send details through our quote form.
Diagnose, treat, sign off
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. Smaller jobs around Hudnall can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- The specification and schedule come first, so we know which details apply.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out first.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
Getting the site ready
- Agree which areas must stay open
- Tell us your opening times and when work is allowed
- Flag any permit to work we will need
Getting a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call 01277 525 020 or email a schedule or drawings.
Advice
Questions about Hudnall
Is a smaller place like Hudnall outside your area?
No. Places such as Hudnall are covered as much as the big towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Is a hospital such as Hemel Hempstead Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.
Can you seal any opening with fire-rated sealant?
No. Sealant is the right product only where the tested detail says so. Large openings, many plastic pipes and some ducts need collars, wraps, batts or boards, and we’ll tell you when that applies.
What does an EI 60 rating mean?
In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. An EI 60 seal kept its integrity and insulation for 60 minutes as tested and the installation has to match the test.
Can you fire stop behind the services contractors?
Yes, where there is a specification for those walls and floors. New services after M&E works often breach existing seals.
Can weather delay the job?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
How do I request a quote?
The quote form is the simplest route, though you can also phone 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.
Building owners, agents and FMs in Hudnall
We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
Looking after the joints
After handover, a little attention goes a long way:
- Foam or ordinary sealant is never a fire-seal repair
- Flag new cables with no seal around them
- File the specified details where the next contractor can find them
- Put resealing into every M&E and fit-out package
Allow the manufacturer’s stated cure time before boxing in or decorating. Not every fire-rated product can be painted.
Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job compared with dozens found at once.
Compartment walls and floors in Hudnall
In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Hudnall lies roughly 29 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.
Wherever services are added at a hospital such as Hemel Hempstead Hospital (to the south-east of Hudnall) the compartment line has to be made good with the specified product.
Hudnall is about 3 miles north of Berkhamsted, in Hertfordshire. We cover commercial sites throughout Hudnall, for single jobs and planned programmes alike. Hudnall is one of 371 places we cover in Hertfordshire. For work in that direction, see our London page (29 miles or so).
Commercial sites across HP4 are covered for service penetrations. Nearby places we also cover include Little Gaddesden (1 mile north-west), Hudnall Corner (1 mile east), Ringshall (1 mile north-west) and Dagnall (2 miles north). Further afield, our area takes in Watford (12 miles south-east), Hemel Hempstead (5 miles south-east), St Albans (10 miles south-east), Welwyn Garden City (15 miles east), Harpenden (8 miles east) and Hitchin (15 miles north-east).
Local landmarks in Hudnall
The nearest railway station is Berkhamsted station, roughly 3.2 miles south of the centre. Nearby you’ll also find Hemel Hempstead Hospital (5.1 miles south-east). Not far away are Ivinghoe Beacon and Sallowsprings.