Hertfordshire · England
Fire-rated sealant in Hitchin, Hertfordshire
Fire rated sealant for Hitchin, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Fire stopping disturbed by later work
- Gaps left after a refit or conversion
- Unsealed gaps where pipes and cables go through a wall
Fire rated sealant in Hitchin
Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. We work on plasterboard & masonry, flats & HMOs and door frames, and people most often call us about fire stopping disturbed by later work and new service routes left unsealed after building work.
If you look after a school, care home, pub or office in Hitchin, the sealant in its washrooms and kitchens, and the fire-rated joints around its pipework, all need looking after. Work can be planned around opening hours where needed.
Big or small, it’s backed by our one-year guarantee.
- Place
- Hitchin (SG4, SG5)
- Region
- Hertfordshire
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Fire-rated sealants need more care than everyday sealant. Depth, backing and surface preparation all affect how a seal performs, so we follow the maker’s details on every gap. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What you get with us
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
- We’re fully insured
- Old sealant always removed completely
Read what affects the cost or our reviews.
What affects the cost of fire rated sealant
We don’t publish a price list, because jobs vary so much. What we look at:
- Any mould that needs treating
- Working hours on commercial sites
- The type of sealant required
- The old material and how stubborn it is
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What we need to know
To make quoting easier, please include:
- Any access issues, like height or stairs
- Whether it has been sealed before
- The rough size of the job
- Whether it’s a home or a business
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Include hidden areas like risers in routine checks
- Keep the record of products and locations with your fire safety documents
- Include fire stopping when you schedule refits
- Ask which product was used before you paint
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint, so ask us which we used.
Open gaps do not only matter in a fire: they also let noise, draughts and sometimes pests through. Dealing with them early helps with all of these.
How it works
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work starts. The work generally takes from a few hours to a few days, depending on the number of gaps and the access. In Hitchin, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
- Move anything stored near the joints
Ask for a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job.
Read more
When something else is needed
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Construction that does not provide fire resistance on its own
- Openings too large for sealant, which need batts, boards or another system
- Certifying a building or signing off its fire safety
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Linear gaps
- Pipe & cable gaps
- Service penetrations
Common questions in Hitchin
Do you work for hotels and guest houses in Hitchin?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
I let a flat near Hitchin station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Where do you work from?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Are you fully insured?
Yes. We are fully insured, and we can confirm the details when we quote.
Can you tell me which gaps need fire stopping?
No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.
What fire rating will the seal have?
Ratings and certificates aren’t something we issue. The performance comes from the product’s tested details and the specification from your assessor or designer, and we install to them.
Do you guarantee your work?
Yes: twelve months. If anything is not right with the work within the year, let us know and we’ll sort it.
How long does fire rated sealant take?
Most jobs take anything from a few hours to several days, depending on how many gaps there are, including the preparation. Your quote will say how long we expect yours to take.
What fire rated sealant looks like in Hitchin
There are hotels and other places to stay in and around Hitchin. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details.
For landlords with property near Hitchin station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Managing a site like Hitchin Girls' School? Then service openings in fire-resisting walls need checking after any refurbishment.
Hitchin is about 5 miles north-west of Stevenage, in Hertfordshire. Jobs in Hitchin get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Hertfordshire coverage runs to 381 places, Hitchin among them. We also work in London, about 32 miles from Hitchin.
Jobs for fire rated sealant in SG4 and SG5 works the same way as everywhere else we cover. Whether your property is on Market Place, London Road and Harrison Close or a nearby road, we can help. Hitchin sits on or near the A505 and A600, which makes travel easy. Other places close to Hitchin include Benslow (1 mile east), Poets Estate (1 mile east), Bearton (1 mile north-west), Walsworth (1 mile north-east) and Westmill (1 mile north-west). Further out, we also cover Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east). Being one of Hertfordshire’s larger places, Hitchin has homes, rented property and businesses of every kind.
Local landmarks in Hitchin
We work in homes and buildings around Highbury Infant School and Nursery, Butts Close and Kingshott School. Other local landmarks include Radcliffe Arms (within half a mile north-east) and St Mary's Church (within half a mile south-west). Hitchin has its own railway station: Hitchin station. Nearby you’ll also find Wymondley Castle (1.7 miles east) and Lister Hospital (3.1 miles south-east). For a walk, there’s Purwell Ninesprings and Markham's Hill.
Common problems we fix in Hitchin
Gaps around door frames are easily missed. The gap between the frame and the wall is hidden behind the architrave, so it’s easy to leave unsealed when doors are changed.
People normally contact us after spotting something like this:
- Cracked or shrunken fire-rated sealant
- Holes left by a change of layout
- Damaged fire sealant left by other trades
- Ordinary sealant used where a fire-rated product was needed
For buildings such as Church of the Holy Saviour, gaps around pipes and cables are worth checking after any building work there.
What to look for in a quote
- When the joint can take water or movement
- What product goes in the joint
- Whether they’re fully insured
- What the quote includes, VAT included or not