Fire-rated sealing and fire stopping in Highfield, Hertfordshire
Fire-rated and intumescent sealing of service penetrations and linear gaps across Highfield, by CSCS-carded applicators. CHAS accredited and fully insured.
- Snag lists that include open service penetrations
- Fire sealant pulled out of the opening
- Damaged fire seals in risers and voids
Fire stopping across Highfield
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When to call us in Highfield
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls, which then have to be put right.
If one of these sounds familiar, it’s time for a closer look:
- Expanding foam used as fire stopping
- Open linear gaps along the top of fire-resisting walls
- Fire seals cut back for extra cables and never reinstated
- Hidden openings found during inspections
Halls and meeting rooms at places like St Paul's sometimes gain new services, and any compartment wall crossed needs the specified seal.
What your quote should include
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Proof of insurance
- Do they follow the manufacturer’s priming guidance?
- Are they CHAS accredited or on Constructionline?
Fire stopping in Highfield, done properly
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. Site teams most often ask us about penetration schedules that need working through and open linear gaps along the top of fire-resisting walls, across linear gaps at wall heads, pipe penetrations and service gaps in risers. A single leaking joint is often how a building in Highfield first comes to us: we look at the rest while we are there and tell you what we find.
Around Highfield, penetration and linear seals tend to be one-building jobs. Send the specification, drawings or photographs of the openings and we will quote to suit.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Highfield (HP2, HP1)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
On site: what to expect
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If neighbouring businesses or buildings around Highfield need work too, visits can be combined. Tell us your site hours and we’ll plan around them.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Mineral wool or other backing is fitted where required.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Preparing the site
- Tell us your opening times and when work is allowed
- Point out parking and an unloading spot
- Make sure the joints can be reached
Request a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Related advice
Compartments and services around Highfield
There are several hotels within about 2 miles of Highfield. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail. Highfield is about 24 miles from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.
Refits at places like Bellgate shopping centre, less than half a mile to the west of Highfield, often reroute services through walls between units. In a hotel such as Southville Private Hotel, 1.4 miles south-west of Highfield, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.
Highfield is about 1 mile north of Hemel Hempstead, in Hertfordshire. We cover Highfield, with the same fixed quotes and 12-month guarantee as everywhere else. Highfield is one of 371 places in Hertfordshire on our list. London is covered too, some 24 miles away.
Anyone looking for fire stopping in HP2 and HP1 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Juno Road, Great Road and Dione Road. Being close to the A4147, Highfield is straightforward for us to reach. Nearby places we also cover include Adeyfield (1 mile south-east), Hemel Hempstead (1 mile south), Piccotts End (1 mile north-west), Grovehill (1 mile south-west) and Woodhall Farm (1 mile south-west). A short drive away, we cover Watford (7 miles south), Stevenage (15 miles north-east), St Albans (6 miles east), Welwyn Garden City (12 miles east), Harpenden (6 miles north-east) and Hitchin (15 miles north-east).
Landmarks near Highfield
Locally, jobs take us to sites close to Gadebridge Park, The Old Bell pub and The Astley Cooper School and the streets around them. For rail, the closest station is Hemel Hempstead station, about 2.1 miles south-west of the centre. Nearby you’ll also find Redbourn Museum (3.3 miles north-east) and Hemel Hempstead Hospital (1.1 miles south-west). Green spaces nearby include Verulamium Lake and Long Deans.
Leave it or put it right?
Open service penetrations matter on ordinary days, not just in a fire: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first, and the other benefits follow. Small buildings around Highfield suffer from failed joints as much as large ones. Catching it early means a reseal rather than repairs.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why appoint us
- CHAS accredited
- Old sealant cut out, never sealed over
- One phone line for London, the South East and Scotland
- Products installed to the manufacturer’s instructions
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
Nearby places to Highfield
Also in Highfield
After the work
Your facilities or cleaning team can help the joints last. Share these points with them:
- Brief every trade that openings they make must be sealed
- Settle who seals which penetrations at the start of a project
- Don’t let anyone top up a fire seal with the wrong product
- Report damaged or disturbed seals as soon as they’re spotted
New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there.
Surface by surface
Plastic pipes
Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we will never swap a specified collar for sealant.
Linear joints
Head-of-wall gaps, slab edges and wall junctions are linear joints. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed.
What we can’t put right
Honesty saves time and money. Fresh joints won’t solve:
- Issuing fire ratings or certificates for seals
- Walls or floors that aren’t fire-resisting to begin with
- Deciding what a wall or floor needs, which belongs to the designer
Not sure which it is? You can call 01277 525 020 or email drawings and photos and we will tell you honestly before you book.
Where we work in Highfield
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
FAQs: Highfield
Is Highfield too small for you to travel to?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Can work at a site such as West Herts College fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Are you fully insured?
Yes. We’re fully insured, and the certificate can go with your quote.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We will confirm the colours available for the specified product.
Is your workmanship covered by a guarantee?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
Can you handle several sites?
Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.