Hertfordshire · England

Fire-rated sealant in Farnham, Hertfordshire

Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Farnham. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Open gaps behind door architraves
  • Damaged fire sealant left by other trades
  • Cracked or shrunken fire-rated sealant

Fire rated sealant in Farnham

Can I do it myself?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

About our fire rated sealant in Farnham

Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That is the part we focus on, one gap at a time. We work on pipe & cable gaps, service penetrations and linear gaps, and common reasons people get in touch are standard silicone or caulk in a fire-stopping gap and holes left by a change of layout.

Work in a small place like Farnham is planned ahead, journey included, so it can be fitted around guests, customers or events where possible.

A 12-month guarantee comes as standard.

Location
Farnham (CM23)
Region
Hertfordshire
Guarantee
A year, on every job
Price
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

When it is not the sealant

It helps to know what we can’t do too:

  • Big openings where sealant alone is not the tested solution
  • Deciding what fire stopping a building needs
  • Construction that doesn’t provide fire resistance on its own

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.

Where we work in Farnham

  • Door frames
  • Pipe & cable gaps
  • Service penetrations
  • Plasterboard & masonry
  • Flats & HMOs
  • Linear gaps

Leave it or put it right?

Paying for fire stopping that has to be redone is a false economy. Work that doesn’t follow the tested detail may have to come out again when the building is next checked. Where a wall is exposed, as many are in small places like Farnham, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.

Why book with us

  • Neat joints and a tidy finish
  • Anti-fungal sanitary silicone in wet areas
  • Arbo and Everbuild products
  • More than 20 years in sealant work

Take a look at what affects the cost or what customers say.

For landlords and businesses

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Common problems we fix in Farnham

Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Most people get in touch when they notice something like this:

  • Gaps left after a refit or conversion
  • Gaps filled with a product that is not fire-rated
  • Fire seals that have cracked with movement
  • Damaged fire sealant left by other trades

If you look after a church, hall or community building such as Church of St Mary the Virgin, older buildings that have had new heating or wiring often have service gaps worth checking.

Comparing quotes

  • Which sealant they’ll use, and why
  • What the quote includes, VAT included or not
  • How hidden problems are handled
  • Whether they seal over old material or remove it

Choosing a sealant specialist

How it works

When we arrive, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work normally takes anything from a few hours to several days, depending on how many gaps there are. For a village or hamlet like Farnham, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We plan the order of work and access, floor by floor or flat by flat.
  2. We take out any damaged or unsuitable sealant.
  3. Dust and loose debris are cleaned from each gap.
  4. The fire-rated or intumescent sealant is applied and tooled to the tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

Getting ready for the visit

  • Tell us about any water getting in
  • Mention any sign-in or site rules at work premises
  • Let us know about parking restrictions

Getting a quote

Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.

Ask for a quote

Read more

How we quote for fire rated sealant

Call for a quick quote. What matters most is:

  • Whether old sealant or filler has to be cut out
  • The type of sealant required
  • How easy the joints are to reach
  • How many rooms, windows or areas are involved

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Asking for a quote

To make quoting easier, please include:

  • The rough size of the job
  • The type of property
  • How we’d reach the joints
  • The address or postcode of the job

Want a quote for fire rated sealant? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Questions from Farnham

I let a flat near Stansted Mountfitchet station. Can you help?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.

Can you do fire rated sealant in Farnham?

Yes, Farnham is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

Can you seal over the old sealant?

No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.

How long does fire rated sealant take?

Typically it takes a few hours for a handful of gaps, and longer for a whole building. Bigger jobs take longer, and we’ll say how long yours will take.

Is it worth trying it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Do you guarantee your work?

Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.

Will the old sealant be removed?

Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.

Workplaces and buildings in Farnham

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

For landlords with property near Stansted Mountfitchet station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as Farnham Church of England Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.

Farnham is about 2 miles north of Bishop's Stortford, in Hertfordshire. Wherever you are in the CM23 postcode area, we can carry out fire rated sealant at your property. Farnham is one of 381 places in Hertfordshire we cover for fire rated sealant. For nearby work, see our Chelmsford page, about 19 miles away.

Postcode districts we cover here for fire rated sealant: CM23. We also cover 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). We also work in nearby towns such as Stevenage (14 miles west), Hoddesdon (12 miles south-west), Hertford (12 miles south-west), Ware (10 miles south-west), Baldock (15 miles north-west) and Broxbourne (13 miles south-west).

Landmarks near Farnham

Around Farnham, our work takes us to homes and buildings near St Mary's Catholic School, among other places. Farnham’s nearest station is Stansted Mountfitchet station, about 2.4 miles east. Other landmarks nearby include Moated mound (1.7 miles south-west) and Herts and Essex Hospital (2.8 miles south-east). Open spaces near Farnham include Portingbury Hills and Aubrey Buxton Nature Reserve.

Map of Farnham © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job