Hertfordshire · England
Fire-rated sealant in Hoddesdon, Hertfordshire
Fire rated sealant in Hoddesdon from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Standard silicone or caulk in a fire-stopping gap
- Unsealed gaps where pipes and cables go through a wall
- Joints picked up in a fire-stopping survey
What we do, step by step
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on how many gaps there are. A visit in Hoddesdon needs access to the work and a place to park close by. For outside work, let us know about side access, gates and any upper-floor joints.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products.
Before we arrive
- Let us know about parking restrictions
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Getting a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Related advice
Fire rated sealant for homes and businesses in Hoddesdon
Fire-rated sealant closes the gaps around pipes, cables and frames where they pass through a fire-resisting wall or floor. We apply intumescent and fire-rated sealants to the manufacturer’s tested details for each gap, with a record of the products and locations if you need one. If you are dealing with cracked or shrunken fire-rated sealant and open joints along the top of partitions, we can help, on door frames, service penetrations and flats & HMOs alike.
Commercial jobs in a town like Hoddesdon range from shops and offices to schools and small business units. All of them have washroom and kitchen joints, and many have fire-rated joints around pipes and cables.
Each job carries a 12-month guarantee, large or small.
- Location
- Hoddesdon (EN11, EN10, EN8, SG12)
- Region
- Hertfordshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Hoddesdon: your questions answered
Do you work for landlords with property near Broxbourne station?
Yes. We work for landlords and 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 Hoddesdon for fire rated sealant?
Yes, Hoddesdon is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
What does fire rated sealant cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Hoddesdon, along with the rest of our area.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can I add another job to the visit?
Yes. Just list everything you need and you’ll get one quote.
Can you match the sealant colour?
In most cases you can choose. We’ll explain which colours are available and agree one before work begins.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Landlords, agents and businesses in Hoddesdon
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and letting agents in Hoddesdon can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Fire rated sealant around Hoddesdon
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Letting a property close to Broxbourne station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. If you look after a building such as Sheredes School, fire-stopping around service openings should be restored whenever new services go in. For buildings such as Church of St Catherine & St Paul, gaps around pipes and cables are worth checking after any building work there.
Hoddesdon is about 13 miles south-east of Stevenage, in Hertfordshire. For fire rated sealant in and around Hoddesdon, please call 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Hertfordshire. Hoddesdon is one of 381 places in Hertfordshire where we work. London is on our list too, about 18 miles from Hoddesdon.
Jobs for fire rated sealant in EN11, EN10, EN8 and SG12 is quoted and booked the same way as anywhere else. That includes homes and businesses on High Street, Station Road and London Road. Main roads around Hoddesdon include the A10 and B176, so getting to you is simple. Other places close to Hoddesdon include Broxbourne (1 mile south-west), High Leigh (1 mile north-west), Woollensbrook (1 mile north-west), Goose Green (1 mile north-west) and Wormley (2 miles south). We also work in nearby towns such as Stevenage (13 miles north-west), St Albans (13 miles west), Bishop's Stortford (11 miles north-east), Welwyn Garden City (8 miles west), Harpenden (15 miles west) and Cheshunt (3 miles south-west). As one of the bigger places in Hertfordshire, Hoddesdon has homes, rented property and businesses of every kind.
Near you in Hoddesdon
Around Hoddesdon, our work takes us to homes and buildings near Barclay Park, The Golden Lion Inn and St Cross Catholic Primary School and the streets around them. For rail, the closest station is Broxbourne station, roughly 0.6 miles south-east of the centre. A little further out are Hertford County Hospital (4.2 miles north-west) and Barrowfield (3.4 miles north-west). Green spaces nearby include Danemead and Cheshunt Lake.
Why it’s worth doing now in Hoddesdon
Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own that does not depend on other work. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why choose Mr Mastic in Hoddesdon
- More than 20 years in sealant work
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
- Every job guaranteed for a year
Read our cost guide or customer reviews.
Surface by surface
Door frames
Behind most architraves is a gap between frame and wall. Where it’s open, we seal it to the product’s details for that gap size.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first so the sealant bonds.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What sealant work can’t fix
We will always be straight with you, so here’s what new sealant won’t do:
- Fire risk assessments, which need a qualified assessor
- A wall that isn’t a fire-resisting element to begin with
- Certifying a building or signing off its fire safety
If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Linear gaps
- Pipe & cable gaps
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Service penetrations
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Include fire stopping when you schedule refits
- Get damaged fire seals looked at promptly
- Check whether a sealant can be painted before decorating over it
- 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 get them seen to.
An open gap isn’t only a fire issue: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.