Hampshire · England
Fire-rated sealant in Crowdhill, Hampshire
Fire rated sealant for Crowdhill and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Gaps flagged on a fire risk assessment
- Cracked or shrunken fire-rated sealant
- Ordinary sealant used where a fire-rated product was needed
How we handle fire rated sealant in Crowdhill
We can work through a building room by room or floor by floor, noting the locations and products as we go. That record is useful for your files and for whoever looks at the building next. We work on plasterboard & masonry, service penetrations and flats & HMOs, and the jobs we see most are joints picked up in a fire-stopping survey and unsealed gaps around fire door frames.
In a village or hamlet like Crowdhill, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Crowdhill (SO50)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Ask which product was used before you paint
- File the fire-stopping record where your assessor can find it
- Flag any open gap you spot round a pipe or cable
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Get it sealed and recorded.
Questions from Crowdhill
Will you come out to Crowdhill?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Crowdhill in your area for fire rated sealant?
Yes, Crowdhill is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How much does fire rated sealant cost in Crowdhill?
Size, access and the old material all affect the cost. Ask us for a quote.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Do you seal gaps around fire door frames?
Yes, if the gap is within the product’s tested range. Our work is the gap around the frame, and we will mention anything we notice about the door.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Honest limits
It helps to know what we cannot do too:
- Fire doors that need new seals, closers or hardware
- Large holes that need a different fire-stopping system
- Construction that does not provide fire resistance on its own
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
- Door frames
- Plasterboard & masonry
- Service penetrations
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on how many gaps there are, depending on how much there is to do. Somewhere like Crowdhill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- 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.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or email us.
Read more
Workplaces and buildings in Crowdhill
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.
If you look after a building such as Wyvern Technology College, service openings in fire-resisting walls need checking after any refurbishment. Letting a property close to Eastleigh station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Crowdhill is about 2 miles north-east of Eastleigh, in Hampshire. Every kind of property in Crowdhill can book us for fire rated sealant. The work is guaranteed for a year. 683 places in Hampshire are on our list, large and small. We also work in Southampton, around 6 miles away.
Our applicators cover all of SO50 for fire rated sealant. You’ll find streets such as Chestnut Drive and Winchester Road. We also cover Fisher's Pond (1 mile north), Nob's Crook (1 mile north-west), Colden Common (1 mile north-west), Lord's Wood (1 mile north-west) and Bishopstoke (1 mile south-west). Larger places within reach include Winchester (6 miles north), Gosport (14 miles south-east), Fareham (10 miles south-east), Horndean (14 miles east), Totton (10 miles south-west) and Chandler's Ford (4 miles west).
Local landmarks in Crowdhill
In Crowdhill, that means homes and buildings near The King's School Senior and The Fox & Hounds pub and the streets around them. For rail, the closest station is Eastleigh station, about 2.2 miles west. Well-known places in the area include Eastleigh Museum (2.3 miles west) and Moorgreen Hospital (3.6 miles south). Green spaces nearby include Twyford Down and Shawford Down.
Why it’s worth doing now in Crowdhill
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, and we work to the product details every time. Around Crowdhill, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
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. The price is agreed before we begin.
Why choose Mr Mastic in Crowdhill
- 4.9 on Google from 180+ five-star reviews
- Over 20 years’ experience
- A 12-month guarantee on all work
- Homes, businesses and hotels
Read our cost guide or what customers say.
Signs you need fire rated sealant in Crowdhill
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it is not installed as tested. Rushed fire stopping is common, especially where it was squeezed in at the end of a project.
Any of these means the joints need attention:
- Gaps where walls meet ceilings or slabs
- Old fire sealant that has split or come away
- Fire stopping disturbed by later work
- Open gaps behind door architraves
Community buildings like Church of the Holy Trinity are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Comparing quotes
- How much experience the applicator has
- What the cure time is
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
Also in Crowdhill
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
