Hampshire · England
Fire Rated Sealant in Bull Hill
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Bull Hill, with a one-year guarantee on every job. Ask us for a quote.
- Seals cut through by electricians, plumbers or data installers
- New service routes left unsealed after building work
- Cracked or shrunken fire-rated sealant
How the job changes by surface
Service penetrations
New gaps tend to show up where services have been added. We clean out what’s there and reseal to the right depth with backing where the detail needs it.
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.
Fire rated sealant in Bull Hill, done properly
Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on door frames, flats & HMOs and plasterboard & masonry, and the jobs we see most are unsealed gaps around fire door frames and holes left by a change of layout.
For holiday lets, converted business premises or a community building near Bull Hill, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or email us.
- Where
- Bull Hill (SO41)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

The process
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the size of the job. Somewhere as small as Bull Hill, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your records.
Before we arrive
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Read more
Quotes for fire rated sealant in Bull Hill
Some jobs are bigger than they look, and some smaller. The main factors:
- Mould in or behind the old joints
- How much there is to do
- Any working-time requirements on site
- Access and height
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and give you a clear price before we start.
Helping us quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Photos by email, if that’s easy
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
Common questions in Bull Hill
Do you cover smaller places like Bull Hill?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Lymington Town station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Is standard sealant good enough for a fire gap?
No. Where a fire-rated seal is needed, it has to be a product tested for that use fitted to the maker’s details.
Do you seal gaps around fire door frames?
Yes. We seal the gap between the frame and the wall with a suitable fire-rated product. The door leaf and its hardware need a door specialist.
Can you tell me which gaps need fire stopping?
No. That is for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Places near Bull Hill
What else we do in Bull Hill
When to call us in Bull Hill
Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. Rushed fire stopping is common particularly when it was the last job before handover.
Look out for any of the following:
- Damaged fire sealant left by other trades
- Holes left by a change of layout
- Cracked or shrunken fire-rated sealant
- Door frames with gaps between frame and wall
If you look after a church, hall or community building such as Saint Nicholas Chapel, older buildings that have had new heating or wiring often have service gaps worth checking.
What to look for in a quote
- Are they insured?
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What happens if it’s left?
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. Around Bull Hill, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit is usually more efficient than separate visits. We’ll send you a clear quote for the lot.
Why choose Mr Mastic in Bull Hill
- Approved under the ARBOMaster scheme
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
- Anti-fungal sanitary silicone in wet areas
Take a look at how sealant jobs are priced or what customers say.
What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Fire risk assessments, which need a qualified assessor
- Large holes that need a different fire-stopping system
- Sign-off of the building, which sits with building control or your assessor
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Linear gaps
- Flats & HMOs
- Plasterboard & masonry
- Service penetrations
- Door frames
- Pipe & cable gaps
Fire rated sealant around Bull Hill
If you run a hotel, guest house or holiday let in a coastal place like Bull Hill, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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.
Managing a site like William Gilpin Church of England Primary School? Then fire-stopping around service openings should be restored whenever new services go in. Rented homes near Lymington Town station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Bull Hill is about 2 miles north-east of Lymington, in Hampshire. For fire rated sealant in and around Bull Hill, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We are based in Crawley and cover Hampshire, Bull Hill included. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. Our Southampton page covers work nearby (11 miles or so).
We work across SO41 for fire rated sealant and the streets around it. Local streets include Holly Lane and Jordans Lane. Nearby, we also carry out fire rated sealant in Pilley Bailey (1 mile north-west), Pilley (1 mile west), Portmore (1 mile south), Warborne (1 mile south-west) and Boldre (1 mile west). We also work in nearby towns such as Eastleigh (15 miles north-east), Fareham (15 miles east), Totton (9 miles north), Chandler's Ford (15 miles north-east), Hedge End (13 miles north-east) and Romsey (15 miles north).
What’s near Bull Hill
In Bull Hill, that means homes and buildings near Southlands School. Bull Hill’s nearest station is Lymington Town station, about 1.8 miles south-west of the centre. A little further out are Lymington New Forest Hospital (1.5 miles south-west) and St Barbe Museum and Art Gallery (2 miles south-west). For a walk, there’s Boldre Foreshore.
