Hertfordshire · England
Long Marston Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Long Marston and across Hertfordshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant items on a fire risk assessment action list
- Gaps around pipes and cables through fire-resisting walls
- Holes left by a change of layout
Fire rated sealant in Long Marston: local notes
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you are given, installing the product to its tested details.
Letting a property close to Cheddington station? Then any gap left by new services in shared walls should be closed with a fire-rated product. Managing a site like Long Marston VA Church of England Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Long Marston is about 5 miles east of Aylesbury, in Hertfordshire. Every kind of property in Long Marston can book us for fire rated sealant. The work is guaranteed for a year. Long Marston is one of 381 towns and villages in Hertfordshire where we work for fire rated sealant. We also work in Oxford, around 23 miles away.
Work in HP23 works the same way as everywhere else we cover. If you need fire rated sealant at a property on Station Road, Chapel Lane and Bromley or anywhere close by, we can help. Neighbouring places we cover for fire rated sealant include Astrope (1 mile south), Puttenham (1 mile south-west), Buckland (2 miles south), Aston Clinton (2 miles south-west) and Wingrave (3 miles north-west). Larger places within reach include Hemel Hempstead (12 miles south-east), Harpenden (15 miles east), Berkhamsted (7 miles south-east), Tring (3 miles south-east), Chorleywood (15 miles south-east) and Grovehill (11 miles south-east).
Around Long Marston
The closest station to Long Marston is Cheddington station, about 2.4 miles north-east. A little further out are Tindal Centre (4.4 miles west) and Pitstone Green Museum (2.6 miles east). For a walk, there’s Ivinghoe Beacon and College Lake nature reserve.
Fire rated sealant for homes and businesses in Long Marston
Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment. If you share the list, we can quote for the gaps that need fire-rated sealant. We are often asked to deal with gaps where walls meet ceilings or slabs and unsealed gaps where pipes and cables go through a wall, across pipe & cable gaps, service penetrations and flats & HMOs.
If you have holiday lets, a converted barn used for business or a community building near Long Marston, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Whatever the size of the job, it’s backed by our 12-month guarantee in Long Marston and across Hertfordshire.
- Place
- Long Marston (HP23)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for fire rated sealant
You’ll get a clear quote before work begins. It’s based on:
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- Any mould that needs treating
- The number of rooms or windows
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Signs you need fire rated sealant in Long Marston
Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
The most common problems we see are:
- Seals cut through by electricians, plumbers or data installers
- Gaps flagged on a fire risk assessment
- Cracked or shrunken fire-rated sealant
- Gaps left after a refit or conversion
For buildings such as Church of All Saints (Church of England), older buildings that have had new heating or wiring often have service gaps worth checking.
What your quote should include
- Which colour the sealant will be
- What guarantee comes with the work
- When the joint can take water or movement
- How the surfaces are prepared before sealing
What we do, step by step
When we arrive, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Somewhere like Long Marston needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used.
How to prepare
- Clear items away from the joints we’re working on
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
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FAQs for Long Marston
Is Long Marston in your area for fire rated sealant?
Yes, Long Marston is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Do you work for landlords with property near Cheddington station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Is standard sealant good enough for a fire gap?
No. A gap that needs fire stopping needs a tested fire-rated product, installed to its details.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Do you take on fire stopping in schools and offices?
Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. The order of work and access are planned with you.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Plan fire stopping into any work that goes through walls or floors
- Take pictures of fire stopping before ceilings or boxing go back
- Report cracked or damaged seals as soon as you notice them
- Store the list of sealed gaps with your building paperwork
Any fire seal that’s cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the list grows.
How the job changes by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. We agree access to each flat and the common parts before we start.
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach.
What else we do in Long Marston
When something else is needed
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Walls or floors that weren’t built to resist fire
- Openings too large for sealant, which need batts, boards or another system
- Deciding what fire stopping a building needs
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Long Marston
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
- Linear gaps