Hampshire · England
Fire-rated sealant in Rockbourne, Hampshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Rockbourne and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Unsealed gaps around fire door frames
- Gaps around pipes and cables through fire-resisting walls
- Standard silicone or caulk in a fire-stopping gap
Fire rated sealant in Rockbourne, done properly
Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment. If you share the list, we can quote for the gaps that need fire-rated sealant. If you’re dealing with holes left by a change of layout and standard silicone or caulk in a fire-stopping gap, we can put it right, on flats & HMOs, pipe & cable gaps and service penetrations alike.
For a small place like Rockbourne, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Location
- Rockbourne (SP6)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Commercial buildings in Rockbourne
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Managing a site like Western Downland Church of England Aided Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices. For buildings such as Church of St Andrew, older buildings that have had new heating or wiring often have service gaps worth checking.
Rockbourne is in Hampshire. Wherever you are in the SP6 postcode area, we can carry out fire rated sealant at your property. Rockbourne is one of 683 places in Hampshire where we work for fire rated sealant. You can also see our page for Southampton, roughly 20 miles from Rockbourne.
All of SP6 is within our area for fire rated sealant, from the main roads to the quietest streets. We also cover the places around Rockbourne: Whitsbury (1 mile north-east), Damerham (2 miles south), Sandleheath (2 miles south), Ashford (3 miles south-east) and Alderholt (4 miles south). Within a short drive, we also cover Totton (15 miles east), Ringwood (9 miles south), Fordingbridge (3 miles south-east), St Leonards (9 miles south), Brockenhurst (15 miles south-east) and Poulner (8 miles south).
Local landmarks in Rockbourne
We work in homes and buildings around The Cart Wheel Public House and the streets around them. Nearby you will also find Fordingbridge Museum (3.3 miles south-east) and Godshill Castle Hill (3.5 miles south-east).
Landlords, agents and businesses in Rockbourne
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
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. Everything old must be removed first.
What sealant work can’t fix
We will always be straight with you, so here’s what sealant cannot fix:
- Fire risk assessments, which need a qualified assessor
- Openings too large for sealant, which need batts, boards or another system
- Certifying a building or signing off its fire safety
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Flats & HMOs
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
- Service penetrations
- Linear gaps
Your questions about fire rated sealant in Rockbourne
Is Rockbourne in your area for fire rated sealant?
Yes, Rockbourne is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Do you cover smaller places like Rockbourne?
Yes, Rockbourne is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you seal gaps around fire door frames?
Yes, where the gap suits a sealant detail. We seal the frame-to-wall gap, not the door itself.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
What fire rating will the seal have?
Ratings and certificates are not something we issue. The performance comes from the product’s tested details and the specification from your assessor or designer, and we install to them.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
What does fire rated sealant cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
Aftercare tips
Looking after new joints is easy:
- Ask which product was used before you paint
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Report cracked or damaged seals as soon as you notice them
- Allow for resealing whenever new services are run
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some cannot, so ask us which we used.
An open gap isn’t only a fire issue: noise, draughts and even pests can come through too. Sealing them early helps on every front.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of gaps, and longer for a whole building from start to finish. In a small place like Rockbourne, access is generally the main thing to plan. 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.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the gap 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.
Getting ready for the visit
- Clear items away from the joints we are working on
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
What affects the quote in Rockbourne
We don’t publish a price list, because no two jobs are the same. What we look at:
- Whether there’s mould to deal with
- How many areas need sealing
- The product the joint needs
- Whether old sealant or filler has to be cut out
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
When you call or email, these details help:
- If it’s domestic, commercial or a hotel
- Photos by email, if that’s easy
- How we’d reach the joints
- Where the property is
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Why deal with it now?
If an assessor has flagged gaps, it makes sense to close them before the next review. Getting them done and written up means you can show the action was taken. Around Rockbourne, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Rockbourne
- Over 20 years’ experience
- 12-month guarantee on every job
- We never seal over old sealant
- 180+ five-star Google reviews
Take a look at what affects the cost or our reviews.
