Hertfordshire · England
Fire-rated sealant in Chenies, Hertfordshire
Fire-stopping gaps in Chenies need attention? We cut out the old, prepare the joints and apply the right sealant.
- Joints picked up in a fire-stopping survey
- Gaps left after a refit or conversion
- Fire stopping disturbed by later work
What we do, step by step
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. It generally takes from a few hours to a few days, depending on the number of gaps and the access. For a village or hamlet like Chenies, 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.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Mention any tricky access
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or send us an email.
Advice
About our fire rated sealant in Chenies
Bigger jobs can be worked through in stages, flat by flat or floor by floor, noting the locations and products as we go. That record is useful for your files and for whoever looks at the building next. We work on pipe & cable gaps, service penetrations and plasterboard & masonry, and people most often call us about unsealed gaps where pipes and cables go through a wall and gaps where walls meet ceilings or slabs.
Work in a small place like Chenies is planned ahead, journey included, so it can be fitted around guests, clients or events where possible.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Chenies (WD3)
- Wider area
- Hertfordshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Door frames
Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.
Masonry and concrete
Holes through concrete and block are rarely neat. We measure the gap at its widest point against the product’s tested range.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
What happens if it’s left?
A quick fill with any sealant to hand is not fire stopping. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. In a small place like Chenies, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Chenies
- Fully insured
- Homes, businesses and hotels
- Anti-fungal sanitary silicone in wet areas
- One-year guarantee on every job
FAQs for Chenies
Do you cover smaller places like Chenies?
Yes. Chenies is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do fire rated sealant in Chenies?
Yes. We work across London and the South East, and Chenies is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear quote.
Do you certify the fire stopping?
We don’t certify fire stopping or quote ratings. We apply the specified product to the manufacturer’s details and giving you a record of where it went.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
What fire rated sealant looks like in Chenies
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For buildings such as Church of St Michael, gaps around pipes and cables are worth checking after any building work there. If you let a flat or house near Chalfont & Latimer station, any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Chenies School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.
Chenies is about 3 miles east of Amersham, in Hertfordshire. Across the WD3 area, we cover fire rated sealant for homes and businesses. 381 places in Hertfordshire are on our list, large and small. For nearby work, see our London page, about 22 miles away.
We work across the WD3 postcode area for fire rated sealant and the streets around it. Neighbouring places we cover for fire rated sealant include Latimer (1 mile west), Flaunden (1 mile north), Little Chalfont (2 miles west), Belsize (2 miles north-east) and Chorleywood (2 miles south-east). We also work in nearby towns such as Watford (6 miles east), Hemel Hempstead (6 miles north-east), St Albans (10 miles north-east), Harpenden (12 miles north-east), Hatfield (14 miles north-east) and Borehamwood (11 miles east).
Near you in Chenies
Typical jobs here are in homes near The Bedford Arms and St Clement Danes School and the streets around them. Chenies’s nearest station is Chalfont & Latimer station, roughly 1.4 miles south-west of the centre. Other landmarks nearby include Amersham Fair Organ Museum (2.8 miles west) and Amersham Hospital (4 miles west). For a walk, there’s Sarratt Bottom nature reserve and Tumbling Bay.
Quotes for fire rated sealant in Chenies
Your quote is based on your job. We look at:
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- How much there is to do
- Whether there’s mould to deal with
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Helping us quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Whether it has been sealed before
- A few photos by email, if you can
- What’s wrong with the joints now
Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Include hidden areas like risers in routine checks
- Never patch a fire seal with standard sealant
- Tell trades working in the building that fire seals must be put back
- Take photos of fire stopping before ceilings or boxing go back
File the record of locations and products with your fire safety paperwork. It saves time at the next inspection or assessment.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.