Hampshire · England
Avon Castle Fire Rated Sealant
Fire rated sealant in Avon Castle from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old fire sealant that has split or come away
- Open gaps behind door architraves
- Open joints along the top of partitions
Quotes for fire rated sealant in Avon Castle
We quote each job individually. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- The size of the job
- Whether the work is at height
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.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- If someone has resealed it before
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
About our fire rated sealant in Avon Castle
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. If you have old fire sealant that has split or come away and gaps flagged on a fire risk assessment, we can put it right, whatever the surface.
Work in a small place like Avon Castle is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
Big or small, it’s backed by our one-year guarantee.
- Location
- Avon Castle (BH24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Avon Castle
Also in Avon Castle
How to look after the new joints
To keep the joints looking good and working properly:
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Check risers, ceiling voids and cupboards during building checks
- Take pictures of fire stopping before ceilings or boxing go back
- Report cracked or damaged seals as soon as you notice them
Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. Ask us if you’re not sure which product was used.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes and the job gets bigger.
How the visit works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on how many gaps there are. Somewhere like Avon Castle 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.
- 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.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your files.
Preparing for the visit
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
Ask for a quote
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Related advice
Fire rated sealant around Avon Castle
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. There are hotels and other places to stay in and around Avon Castle. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
In and around Avon Castle, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint. If you look after a building such as St Ives Primary & Nursery School, fire-stopping around service openings should be restored whenever new services go in.
Avon Castle is in Hampshire. Our applicators cover fire rated sealant for homes and businesses in Avon Castle, as part of our work across Hampshire. Avon Castle is one of 683 places in Hampshire where we work for fire rated sealant. There’s also a page for Southampton, roughly 19 miles from Avon Castle.
We work across BH24 for fire rated sealant. We cover properties on Avon Avenue, Avon Castle Drive and Egmont Drive and the roads around them. Other places close to Avon Castle include Matchams (1 mile south-west), St Ives (1 mile north-west), Ashley Heath (2 miles north-west) and St Leonards (2 miles west). Within a short drive, we also cover Totton (15 miles north-east), Lymington (12 miles south-east), New Milton (8 miles south-east), Barton on Sea (9 miles south-east), Ashley (9 miles south-east) and Milford on Sea (12 miles south-east).
What’s near Avon Castle
We work in homes and buildings around Ringwood Waldorf School, Ringwood School and Avon Heath Country Park. Well-known places in the area include St Leonard's Hospital (2.3 miles west). For a walk, there’s Linbrook Lake and St Catherine's Hill.
Landlords, agents and businesses in Avon Castle
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What the job involves on each surface
Service penetrations
Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. We seal it with a product tested for that service and gap size.
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Why it’s worth doing now in Avon Castle
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the work involved is often modest. In a small place like Avon Castle, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Avon Castle
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
See our cost guide or customer reviews.
Common questions in Avon Castle
Can you do fire rated sealant in Avon Castle?
Yes, Avon Castle is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.
Will you come out to Avon Castle?
Yes, Avon Castle is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Will we have a record of what was sealed?
Yes. We record the locations we’ve sealed and the products used for your files.
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 and we can apply it for you.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available and agree one before work begins.
Can you tell me how many minutes the seal will last?
Ratings and certificates are not something we issue. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.