Fire-rated sealing and fire stopping in Newnham, Hertfordshire
Commercial sealant work in Newnham for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Fire-rated sealant that has cracked or shrunk back
- Hidden openings found during inspections
- Non-fire-rated filler around services
Fire stopping for businesses in Newnham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle fire stopping in Newnham
No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. Before we seal anything, we check the opening against the detail it is meant to follow. If you have fire stopping installed outside its tested range and unsealed penetrations discovered above suspended ceilings, we can put it right. A single leaking joint is often how a building in Newnham first comes to us: we look at the rest while we’re there and tell you what we find.
For a smaller site near Newnham, we plan to do all the penetrations in one go, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- Newnham (SG7)
- Region
- Hertfordshire
- Guarantee
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
We begin with a short walk round with whoever looks after the building, 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 others near Newnham need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- 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 first.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- Tell staff and tenants when we will be in
- Confirm the product named in the specification
- Share the asbestos register for older buildings
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, ring 01277 525 020 or email us.
Related advice
Places near Newnham
More services for Newnham
Owners, agents and contractors
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Should maintenance staff do it?
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.
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Looking after the joints
Problems stay small when the joints are checked regularly. In particular:
- Foam or ordinary sealant is never a fire-seal repair
- Settle who seals which penetrations at the start of a project
- Include service cupboards in routine inspections
- Treat an open penetration as a priority repair
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned, and installation follows the programme.
Compartments and services around Newnham
Approved Document B is the English guidance that covers fire stopping around 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. Our part stays the same: the specified product, installed to its tested detail. At about 36 miles from central London, Newnham is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product.
For a school such as The Knights Templar School, penetration sealing fits best at the end of the summer works. Wherever services are added at a hospital such as Fairfield Hospital, 3 miles south-west of Newnham, the compartment line has to be made good with the specified product.
Newnham is about 3 miles north-east of Letchworth, in Hertfordshire. Newnham sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Newnham is one of 371 places in Hertfordshire on our list for service penetrations. We also cover London, some 36 miles away.
Anyone looking for fire stopping in SG7 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are Ashwell Road and Caldecote Road. Just outside Newnham, we also work in Caldecote (1 mile north-west), Bygrave (2 miles south-east), Ashwell End (2 miles north), Bury End (2 miles north) and Ashwell (2 miles north-east). A short drive away, we cover Stevenage (8 miles south), Welwyn Garden City (15 miles south), Hitchin (6 miles south-west), Letchworth (4 miles south-west), Letchworth Garden City (4 miles south-west) and Benslow (6 miles south-west).
Near you in Newnham
Newnham’s nearest station is Baldock station, about 2 miles south of the centre. Nearby you will also find Bygrave House (1.5 miles south-east) and Fairfield Hospital (3 miles south-west). For a walk, there’s Arlesey Old Moat and Glebe Meadows.
Leave it or put it right?
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. One visit to deal with every failing joint makes more sense than several trips to a place like Newnham, rather than one at a time. Photos of every joint help us quote for the whole job.
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.
What you get with us
- CSCS-carded applicators
- Specification-led, product-correct work
- Health and safety: CHAS accredited
- Failed material removed, not covered up
See our cost guide or how we’re accredited.
Questions about Newnham
Is hospital work, at somewhere like Fairfield Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
How does the move away from BS 476 affect penetration seals in Newnham?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Can one quote cover more than one building?
Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.
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, since fresh sealant will not bond reliably to aged material.
Do you offer coloured sealant?
It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Do your applicators hold CSCS cards?
Yes. If you need card details for site access, let us know and we will send them with the quote.
What we’re called out for in Newnham
Most open service penetrations are left by later work. New cabling, rerouted pipework or a data route drilled through a riser can leave the hole behind. Across several fit-outs, the openings add up.
Common reasons buildings call us in:
- Fire stopping installed outside its tested range
- Penetration schedules that need working through
- Openings found when ceilings come down for a refit
- Service penetrations left open after M&E works
Halls and meeting rooms at places like Church of St Vincent sometimes gain new services, and any compartment wall crossed needs the specified seal.
Comparing quotes
- What the guarantee covers, and for how long
- Whether primer will be used where the manufacturer specifies it
- Will failed sealant be removed rather than covered?
- How they handle RAMS and site documents