Gosmore fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Gosmore and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Fire seals cut back for extra cables and never reinstated
- Improvised or mixed-product fire seals
- Unsealed openings around new pipes and cables
Fire stopping in Gosmore
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping for commercial buildings in Gosmore
On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, ring 01277 525 020 or email us with the schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. If you have openings found when ceilings come down for a refit and expanding foam used as fire stopping, we can put it right, on pipe penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors alike. Facilities teams, main contractors and managing agents in Gosmore tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Around smaller places like Gosmore, 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 with a 12-month guarantee. That covers our preparation and application.
- Location
- Gosmore (SG4)
- Region
- Hertfordshire
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Your questions answered
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Gosmore?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Can you work around term dates at a campus such as North Hertfordshire College - Hitchin Campus?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
What will the job cost?
Each job is quoted on its own details. To get one, call the office on 01277 525 020 or email a schedule or drawings with a description of the work.
Is Gosmore in your area?
Yes. We cover Gosmore, and you can call the office on 01277 525 020 or send photos by email to get started.
Are you insured?
Yes. We are fully insured, and the certificate can go with your quote.
Do you hold CHAS accreditation?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Our process
Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. For a building around Gosmore, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.
- The specification and schedule come first, so we know which details apply.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Arrange parking or a loading space
- Have the specification and drawings to hand
- Agree which areas must stay open
Get a fixed quote
To get a fixed quote, call the office on 01277 525 020 or email us, telling us the site location and the nature of the job. You can also send details through our quote form.
Advice
When something else is needed
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Writing the fire-stopping specification
- Walls or floors that aren’t fire-resisting to begin with
- Plastic pipes whose detail calls for a collar or wrap
Not sure which it is? You can phone 01277 525 020 or email drawings and photos and we will tell you honestly before you book.
Where we work in Gosmore
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Pipe penetrations
- Cable penetrations
- Small duct penetrations where the tested detail allows
Places near Gosmore
What else we do in Gosmore
Doing it in-house
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Penetration seals near Gosmore
Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. We install whatever has been specified, to the product’s tested detail. Gosmore lies roughly 31 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal.
Hotels like Lister House Hotel, 0.9 miles to the north of Gosmore, are refurbished in phases, and each phase can open up compartment walls. For a hospital such as Pinehill Hospital, 1.3 miles north of Gosmore, penetration sealing is typically phased ward by ward, with infection-control rules agreed first. For a school such as St Ippolyts Church of England Aided Primary School, penetration sealing fits best at the end of the summer works.
Gosmore is about 1 mile south of Hitchin, in Hertfordshire. We send applicators to Gosmore for service penetrations. 371 places across Hertfordshire fall within our area, Gosmore among them. London is covered too, around 31 miles from Gosmore.
Business premises anywhere in SG4 are within our area. Buildings on London Road, Mill Lane and Orchard Close are within our area for service penetrations. Just outside Gosmore, we also work in St Ippolyts (1 mile east), St Ibbs (1 mile south-east), Sperberry Hill (1 mile south-east), Charlton (1 mile north-west) and Little Almshoe (1 mile south-east). Nearby towns on our patch include Hemel Hempstead (15 miles south-west), Stevenage (4 miles south-east), St Albans (13 miles south), Welwyn Garden City (10 miles south), Harpenden (9 miles south-west) and Hatfield (12 miles south).
What’s near Gosmore
Recent enquiries here include premises near St Mary's Church, Butts Close and The Bird in Hand pub. Other local landmarks include Hitchin Girls' School (1.1 miles north) and Kingshott School (0.8 miles north-east). For rail, the closest station is Hitchin station, about 1.5 miles north. Nearby you will also find North Hertfordshire Museum (1.3 miles north) and Wymondley Castle (1.7 miles east). Open spaces near Gosmore include Markham's Hill and Purwell Ninesprings.
Different surfaces, different methods
Small ducts
Some fire-rated sealant details cover small ducts. Bigger ducts and fire-resisting ductwork are normally handled with other products and we flag that rather than guess.
Cables and cable bundles
Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables, so we check before sealing.
Maintenance after handover
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Treat an open penetration as a priority repair
- Keep general-purpose fillers away from compartment walls
- Check risers and ceiling voids after each round of works
- Keep product data and details in the fire safety file
Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.
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 instead of being left for someone else.
Quoting for work in Gosmore
Each job is priced on its own details. The main factors are:
- The product specified
- Travel to remote or island sites
- Any access equipment needed
- How much there is to seal
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.
What we need to price the job
It doesn’t need to be a full survey. These details are enough to start:
- Rough lengths or quantities, or drawings if you have them
- The postcode of the building
- When you need the work done
- How the joints are reached, and at what height
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or send details through our quote form.