Fire-rated sealing and fire stopping in Farnham, Essex
Fire-rated and intumescent sealing of service penetrations and linear gaps across Farnham, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Expanding foam used as fire stopping
- Seals that don’t match their tested detail
- Service penetrations left open after M&E works
Fire stopping for businesses in Farnham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Doing it in-house
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.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Fire stopping in Farnham
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. If you have non-fire-rated filler around services and hidden openings found during inspections, we can help, on cable penetrations, linear gaps at wall heads and pipe penetrations alike. Searching for sealant specialists in Farnham? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Smaller places such as Farnham still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Where
- Farnham (CM23)
- Region
- Essex
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
What we can’t put right
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:
- Large openings beyond what any sealant detail covers
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Signing off or certifying a building’s fire stopping
If you’re not sure, just give us a call on 01277 525 020 or send photos by email and we will give you a straight answer.
Surfaces we seal
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Service gaps in risers
Quoting for work in Farnham
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Whether the work must be split into stages
- Site requirements such as inductions and permits
- Quantities, in metres or numbers
- Location, for remote and island sites
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 we need to price the job
A good diagnosis starts with the right details. Let us know:
- How the joints are reached, and at what height
- The type of building and who uses it
- Drawings or a marked-up plan, if available
- A wide shot and a close-up of the area
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or use the quote form with what you know.
Farnham: questions and answers
How does the move away from BS 476 affect penetration seals in Farnham?
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.
Is Farnham too far out for you?
No. Places such as Farnham are covered as much as the big towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
Do you hold CHAS accreditation?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
How many days will you need on site?
That varies with the scale of the job, though a typical visit usually takes a single visit for a short list of penetrations, or a phased programme for a whole building. For bigger or phased jobs, we will set out a timescale with the quote.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Why act early in Farnham
A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. Converted and older buildings near places like Farnham tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
What you get with us
- 12 months’ guarantee on every job
- Health and safety: CHAS accredited
- Fully insured
- One number for every site we cover
See how commercial sealant jobs are priced or how we’re accredited.
What the job involves on each surface
Small ducts
Ducts are only sealed with sealant where the detail allows it. The ductwork, its supports and any dampers are for the ductwork contractor.
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail, and we tell you if the bundle exceeds what sealant covers.
Places near Farnham
More services for Farnham
Our process
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes a single visit for a short list of penetrations, or a phased programme for a whole building, and we clear our waste as we work. For work around Farnham, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- 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.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Preparing the site
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
- Warn occupants and staff about the work
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.
Related advice
Compartment walls and floors in Farnham
There are two care or nursing homes within about 2 miles of Farnham. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail. In England, Approved Document B covers fire stopping of openings and penetrations. 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.
For a unit at a site such as Birchanger Industrial Estate, 1.8 miles to the south-east of Farnham, new power or data runs between office and warehouse can breach a compartment wall. In a building such as Church of St Mary the Virgin, any service penetration through a fire-resisting wall should be sealed to the specified detail. For a site team at a college like Arthur Findlay College, 2.9 miles east of Farnham, fire-rated sealing is best scheduled after the summer works.
Farnham is about 2 miles north of Bishop's Stortford, in Essex. Commercial clients in Farnham can call on us for service penetrations, as part of our coverage of Essex. We work across 644 places in Essex. For work in that direction, see our London page.
We cover the CM23 postcode districts for service penetrations. Sites close to Farnham are covered too, including Uppend (1 mile north), Mount Pleasant (1 mile north), Manuden (2 miles north-east), Bentfield Green (2 miles east) and Stansted Mountfitchet (2 miles east). Bigger towns within reach include Harlow (9 miles south), Saffron Walden (9 miles north-east), Great Dunmow (9 miles east), Epping (14 miles south), Newhall (9 miles south) and Elsenham (4 miles east).
Around Farnham
In Farnham, that means premises near St Mary's Catholic School, among other places. For rail, the closest station is Stansted Mountfitchet station, roughly 2.4 miles east of the centre. A little further out are Moated mound (1.7 miles south-west) and Bishops Stortford Local History Museum (1.4 miles south). For a walk, there’s Aubrey Buxton Nature Reserve and Portingbury Hills.