Hertfordshire · England
Fire-rated sealant in Marsworth, Hertfordshire
We cover Marsworth for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Open gaps behind door architraves
- Seals cut through by electricians, plumbers or data installers
- Joints picked up in a fire-stopping survey
Fire rated sealant in Marsworth, done properly
We often work from an action list drawn up by a fire risk assessor. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We work on door frames, plasterboard & masonry and service penetrations, and common reasons people get in touch are damaged fire sealant left by other trades and unsealed gaps where pipes and cables go through a wall.
For a small place like Marsworth, the journey and timings are agreed in advance, so it can be fitted around guests, customers or events where possible.
Every job comes with our 12-month guarantee.
- Location
- Marsworth (HP23)
- Region
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a few hours for a handful of gaps, and longer for a whole building. In a small place like Marsworth, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Tell us if parking is tricky
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Related advice
Quotes for fire rated sealant in Marsworth
The price is agreed before any 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
- Mould in or behind the old joints
- The number of rooms or windows
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear quote before work begins.
What we need to know
Before you ask for a quote, have a think about:
- Where the property is
- The problem you’ve noticed
- The type of property
- How many joints, rooms or windows are involved
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Towns and villages near Marsworth
What else we do in Marsworth
What we are called out for in Marsworth
A lot of fire stopping is out of sight: in ceiling voids, service risers and behind boxing. Out of view, damage sits unnoticed until someone inspects.
People normally contact us after spotting one of these:
- Seals cut through by electricians, plumbers or data installers
- Open gaps behind door architraves
- Gaps left after a refit or conversion
- Open holes round services passing through fire walls
If you let a flat or house near Tring station, any gap left by new services in shared walls should be closed with a fire-rated product.
Questions to ask before you book
- Which sealant they’ll use, and why
- Is VAT in the price?
- How much experience the applicator has
- How the surfaces are prepared before sealing
Why act early in Marsworth
Leaving a gap until a refurbishment comes round can mean years with it open. On its own, sealing it now is a small job. Where a wall is exposed, as many are in small places like Marsworth, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why Marsworth clients choose us
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
See what affects the cost and customer reviews.
Common questions in Marsworth
Will you come out to Marsworth?
Yes, Marsworth is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Marsworth in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Marsworth is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Do you offer different sealant colours?
In most cases you can choose. We’ll explain which colours are available and agree one before we start.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
What fire rating will the seal have?
We do not issue ratings or certificates ourselves. The performance comes from the product’s tested details and the specification from your assessor or designer, and we install to them.
What should I tell you?
Let us know what needs doing and where, with pictures by email if possible. We’ll ask anything else we need to know.
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.
Can you give us a record of the work?
Yes. We record the locations we have sealed and the products used to keep with your fire safety documents.
Commercial buildings in Marsworth
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.
If you look after a building such as Marsworth Church of England Infant School, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Church of All Saints, gaps around pipes and cables are worth checking after any building work there.
Marsworth is about 6 miles north-west of Berkhamsted, in Hertfordshire. Marsworth gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Marsworth is one of 381 places in Hertfordshire we cover for fire rated sealant. For nearby work, see our Oxford page, about 25 miles away.
Here we cover the HP23 postcode area for fire rated sealant. Whether your property is on Vicarage Road, Lukes Lea and Church Lane or a nearby road, we can help. If you are just outside Marsworth, we cover Startop's End (1 mile south-west), Tringford (1 mile south), Bulbourne (1 mile south-east), Wilstone (1 mile west) and Gubblecote (1 mile north-west). Larger places within reach include Hemel Hempstead (10 miles south-east), St Albans (15 miles east), Harpenden (14 miles east), Berkhamsted (6 miles south-east), Rickmansworth (15 miles south-east) and Chorleywood (14 miles south-east).
Landmarks near Marsworth
Locally, jobs take us to homes and businesses close to Tring School and The White Lion pub and the streets around them. The closest station to Marsworth is Tring station, about 2.4 miles south-east of the centre. Well-known places in the area include Tindal Centre (5.9 miles west) and Pitstone Green Museum (1.3 miles north-east). For a walk, there’s College Lake nature reserve and Ivinghoe Beacon.
What the job involves on each surface
Plasterboard walls
We check that the board around the gap is sound. Loose material is removed so the sealant has a firm edge.
Door frames
Frame gaps are usually hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size before the trim goes back.
What we cannot put right
We will always be straight with you, so here’s what sealant can’t fix:
- Fire risk assessments, which need a qualified assessor
- Large holes that need a different fire-stopping system
- Doors that are not fire doors in the first place
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Linear gaps
- Pipe & cable gaps
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Service penetrations