Hampshire · England
Fire-rated sealant in Fawley, Hampshire
Fire rated sealant for Fawley and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Fire stopping disturbed by later work
- Gaps around pipes and cables through fire-resisting walls
- Fire seals that have cracked with movement
Fire rated sealant in Fawley, done properly
Bigger jobs can be worked through in stages, flat by flat or floor by floor. It gives you a list to keep with the building’s fire safety documents. We work on pipe & cable gaps, flats & HMOs and linear gaps, and the jobs we see most are linear gaps at the head of walls and joints picked up in a fire-stopping survey.
Somewhere as small as Fawley, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. They all have washrooms, kitchens and service openings that need the right sealant.
Big or small, you get the same one-year guarantee in Fawley and across Hampshire.
- Location
- Fawley (SO45)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Commercial buildings in Fawley
If you run a hotel, guest house or holiday let in a coastal place like Fawley, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. 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 work to the specification you are given, installing the product to its tested details.
If you look after a church, hall or community building such as Church of All Saints, older buildings that have had new heating or wiring often have service gaps worth checking. Rented homes near Hamble station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Fawley is about 3 miles south-east of Hythe, in Hampshire. Fawley gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Fawley is one of 683 towns and villages in Hampshire where we work. We also work in Southampton, about 7 miles from Fawley.
All of SO45 is covered for fire rated sealant, from the main roads to the quietest streets. Streets in the area include The Square, Whites Lane and Forge Lane, and we cover them all. Neighbouring places we cover for fire rated sealant include Stonehills (1 mile south-east), Ashlett (1 mile east), Sprat's Down (1 mile south), Blackfield (1 mile south-west) and Calshot (1 mile south-east). We also work in nearby towns such as Gosport (9 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (9 miles north-west), Chandler's Ford (11 miles north) and Hedge End (6 miles north).
Local landmarks in Fawley
We work in homes and buildings around Falcon Hotel and The New Forest Academy and the streets around them. The nearest railway station is Hamble station, about 3.2 miles north. Nearby you will also find Coldeast (4.2 miles north-east) and Calshot Castle (1.9 miles east). Not far away are Mercury Marshes.
What happens on the day
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take from a few hours to a few days, depending on the number of gaps and the access, and we tell you how long to leave it before we go. Somewhere as small as Fawley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
- Tell us about any water getting in
How to get a quote
We don’t 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 drop us an email.
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Landlords, agents and businesses in Fawley
Housing providers, facilities teams and property managers book us too in Fawley and across Hampshire. We can quote a run of properties together, and we are fully insured.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What we are called out for in Fawley
Much fire stopping is hidden: in ceiling voids, service risers and behind boxing. Because nobody sees it, gaps go unnoticed until an assessor or surveyor looks.
Signs it’s time to call us include:
- Seals cut through by electricians, plumbers or data installers
- Gaps flagged on a fire risk assessment
- Open gaps behind door architraves
- Gaps filled with a product that isn’t fire-rated
If you look after a building such as Fawley Infant School, service openings in fire-resisting walls need checking after any refurbishment.
What to look for in a quote
- Whether VAT is included
- What happens if the job turns out different
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
Your questions about fire rated sealant in Fawley
Will you come out to Fawley?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Hamble station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you do fire sealant around door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant. The door, its seals and closer are for a door specialist.
Are you insured?
Yes. We are fully insured.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Places near Fawley
Also in Fawley
How the job changes by surface
Linear gaps
Long, narrow gaps appear where walls meet slabs and ceilings. We seal them to the tested detail, with backing where it’s needed.
Flats and HMOs
Conversions normally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and the locations noted.
Aftercare tips
A little care helps the new joints last. We recommend:
- Ask every contractor to reseal any fire stopping they disturb
- Check whether a sealant can be painted before decorating over it
- Report cracked or damaged seals as soon as you notice them
- Store the list of sealed gaps with your building paperwork
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint, so ask us which we used.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.
What affects the cost of fire rated sealant
You will get a clear quote before work begins. It takes into account:
- Access and height
- How much old sealant there is and how hard it is to remove
- How much there is to do
- Whether there’s mould to deal with
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- The rough size of the job
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.