Essex · England
Lamarsh Fire Rated Sealant
Problem with your fire-stopping gaps in Lamarsh? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Door frames with gaps between frame and wall
- New service routes left unsealed after building work
- Cracked or shrunken fire-rated sealant
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Check whether a sealant can be painted before decorating over it
- Include hidden areas like risers in routine checks
- Flag any open gap you spot round a pipe or cable
- Tell trades working in the building that fire seals must be put back
Include fire stopping in your regular building checks. Look for cracks, gaps or sealant that has been cut or pulled out and have them put right.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is generally a straightforward job.
Fire rated sealant in Lamarsh, done properly
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through. We work on plasterboard & masonry, linear gaps and pipe & cable gaps, and common reasons people get in touch are gaps flagged on a fire risk assessment and seals cut through by electricians, plumbers or data installers.
For a small place like Lamarsh, the journey and timings are agreed in advance, so it can be fitted around guests, customers or events where possible.
Whatever the size of the job, you get the same 12-month guarantee in Lamarsh and across Essex.
- Location
- Lamarsh (CO8)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Leaving a gap until a refurbishment comes round can mean years with it open. On its own, sealing it now is a small job that does not depend on other work. In a small place like Lamarsh, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What you get with us
- Arbo and Everbuild products
- Homes, businesses and hotels
- Full insurance on every job
- Old sealant always removed completely
Take a look at what affects the cost and customer reviews.
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes anything from a few hours to several days, depending on how many gaps there are. In a small place like Lamarsh, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used for your files.
Before we arrive
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
Towns and villages near Lamarsh
More services for Lamarsh
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Doors that are not fire doors in the first place
- Construction that doesn’t provide fire resistance on its own
- Fire risk assessments, which need a qualified assessor
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Plasterboard & masonry
- Linear gaps
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
- Door frames
How the job changes by surface
Masonry and concrete
Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first so the seal has something sound to bond to.
Flats and HMOs
Working in occupied flats needs some planning. We agree access to each flat and the common parts before we start to keep disruption down.
Lamarsh questions
I let a flat near Bures station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you cover smaller places like Lamarsh?
Yes. Lamarsh 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.
Do you have insurance?
Yes. We’re fully insured.
Can you tell me which gaps need fire stopping?
No. Your fire risk assessor, designer or building control decides that. We apply fire-rated sealant to the requirements they set.
Where is Mr Mastic based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can ordinary silicone be used in a fire-stopping gap?
No. It looks sealed but won’t perform as fire stopping. Use a product tested for that gap and service.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
How long will you be here?
That depends on how much there is to do, but most jobs take a few hours for a handful of gaps, and longer for a whole building. We will tell you when we quote.
What we are called out for in Lamarsh
Door frames are a common weak spot. The gap between the frame and the wall is hidden behind the architrave, so it can be left open when a door is replaced.
These are the problems we are asked about most:
- Gaps flagged on a fire risk assessment
- Fire stopping disturbed by later work
- Fire seals that have cracked with movement
- Door frames with gaps between frame and wall
Rented homes near Bures station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Before you book anyone
- What the quote includes, VAT included or not
- What product goes in the joint
- How the colour is chosen
- How hidden problems are handled
Commercial buildings in Lamarsh
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, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a church, hall or community building such as Church of the Holy Innocents, service openings in its walls need the right fire-rated sealant, as in any building.
Lamarsh is in Essex. Jobs in Lamarsh get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Lamarsh is one of 644 towns and villages in Essex where we work for fire rated sealant. Chelmsford is on our list too, around 21 miles away.
All of CO8 is within our area for fire rated sealant, from the main roads to the quietest streets. That includes homes and businesses on Alphamstone Road, Henny Road and Bell Hill. Close by, we work in Alphamstone (1 mile west), Bures Green (1 mile east), Bures (1 mile south-east), Mount Bures (2 miles south) and Cross End (2 miles south-west). Larger places within reach include Colchester (9 miles south-east), Braintree (11 miles south-west), Witham (14 miles south), Camulodunum (9 miles south-east), Halstead (6 miles south-west) and Greenstead (10 miles south-east).
Local landmarks in Lamarsh
We work in homes and buildings around The Lamarsh Lion pub and the streets around them. For rail, the closest station is Bures station, roughly 1.3 miles south-east of the centre. Nearby you will also find Sudbury Museum (3.5 miles north) and Mount Bures (2.1 miles south). Open spaces near Lamarsh include Cornard Mere.
Landlord and commercial work in Lamarsh
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.