Essex · England
Fire-rated sealant in Marden Ash, Essex
Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Marden Ash. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps where walls meet ceilings or slabs
- Unsealed gaps around fire door frames
- Damaged fire sealant left by other trades
How we handle fire rated sealant in Marden Ash
Intumescent sealant looks much like any other sealant until it gets hot; 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 door frames, pipe & cable gaps and flats & HMOs, and the jobs we see most are gaps left after a refit or conversion and cracked or shrunken fire-rated sealant.
For holiday lets, converted business premises or a community building near Marden Ash, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Marden Ash (CM5)
- Region
- Essex
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
When it isn’t the sealant
It helps to know what we can’t do too:
- Assessing a building’s fire safety
- A wall that is not a fire-resisting element to begin with
- Issuing a fire rating or certificate for a building
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Flats & HMOs
- Door frames
- Service penetrations
- Plasterboard & masonry
- Pipe & cable gaps
- Linear gaps
Common problems we fix in Marden Ash
Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It looks sealed, but it is not fire-rated.
Signs it’s time to call us include:
- Open holes round services passing through fire walls
- Unsealed gaps around fire door frames
- Fire stopping disturbed by later work
- Standard silicone or caulk in a fire-stopping gap
For buildings such as St James, gaps around pipes and cables are worth checking after any building work there.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- Who turns up on the day
- Whether they’re fully insured
What fire rated sealant looks like in Marden Ash
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 work to the specification you are given, installing the product to its tested details.
Managing a site like Chipping Ongar Primary School? Then fire-stopping around service openings should be restored whenever new services go in.
Marden Ash is about 6 miles north-west of Brentwood, in Essex. Marden Ash gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Marden Ash is one of 644 places in Essex where we work. You can also see our page for Chelmsford, roughly 11 miles from Marden Ash.
Work in CM5 is quoted and booked the same way as anywhere else. Local streets include Rodney Road, Fairfield Road and Brentwood Road, and we cover them all. Marden Ash sits on or near the A128, which makes travel easy. Other places close to Marden Ash include Stanford Rivers (1 mile south-west), Little End (1 mile south-west), Hare Street (2 miles south-west), Clatterford End (2 miles west) and Paslow Wood Common (2 miles east). We also work in nearby towns such as Chelmsford (11 miles east), Basildon (13 miles south-east), Harlow (7 miles north-west), Brentwood (6 miles south-east), Billericay (9 miles south-east) and Loughton (8 miles south-west).
Landmarks near Marden Ash
Locally, jobs take us to homes and businesses close to The Ongar Academy and Two Brewers Public House, among other places. Nearby you’ll also find Willingale Doe (4.8 miles north-east) and St. Margaret's Hospital (5.2 miles west). For a walk, there’s Gernon Bushes.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a handful of gaps, and longer for a whole building. Somewhere like Marden Ash needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- Mention any tricky access
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
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Towns and villages near Marden Ash
Other services in Marden Ash
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What the job involves on each surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.
What happens if it’s left?
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, and we work to the product details every time. Older cottages and farmhouses around Marden Ash can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why choose Mr Mastic in Marden Ash
- Anti-fungal silicone where joints get wet
- More than 20 years in sealant work
- Tidy, careful work
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and our reviews.
Questions from Marden Ash
Is Marden Ash within the area you cover?
Yes. Marden Ash is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with fire rated sealant in Marden Ash?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Do you certify the fire stopping?
That is not something we state or certify. The requirement comes from your assessor, designer or building control, and we apply a product tested for it with a record of each location.
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 remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Do you offer different sealant colours?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.