Hampshire · England
Fire-rated sealant in Littleton, Hampshire
Fire-stopping gaps in Littleton need attention? We remove the old material, prepare the joints and seal them properly.
- Unsealed gaps around fire door frames
- Joints picked up in a fire-stopping survey
- Gaps filled with a product that is not fire-rated
What happens on the day
You do not need to clear the whole room or building, just the space around the work. We protect the rest, and the work takes anything from a few hours to several days, depending on how many gaps there are in most cases. Somewhere like Littleton 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.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
Fire rated sealant for homes and businesses in Littleton
Fire-rated sealant closes the gaps around pipes, cables and frames where they pass through a fire-resisting wall or floor. We apply intumescent and fire-rated sealants to the manufacturer’s tested details for each gap. If you’re dealing with joints picked up in a fire-stopping survey and gaps around pipes and cables through fire-resisting walls, we can put it right.
Somewhere as small as Littleton, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
There’s a 12-month guarantee on every job.

- Where
- Littleton (SO22)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. In a small place like Littleton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Littleton
- Anti-fungal sanitary silicone in wet areas
- Tidy, careful work
- Rated 4.9 stars on Google
- Fully insured
Littleton: your questions answered
Do you cover smaller places like Littleton?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Littleton for fire rated sealant?
Yes. We work across London and the South East, and Littleton is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months, large or small.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Do you have insurance?
Yes. We’re fully insured.
Fire rated sealant around Littleton
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 work to the specification you’re given, installing the product to its tested details.
For buildings such as Church of St Catherine, older buildings that have had new heating or wiring often have service gaps worth checking. If you look after a building such as Harestock Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Littleton is about 2 miles north-west of Winchester, in Hampshire. Across the SO22 area, our applicators can take on fire rated sealant. Our Hampshire coverage runs to 683 places, and Littleton is one of them. You can also see our page for Southampton, about 12 miles away.
Here we cover the SO22 postcode area for fire rated sealant. Local streets include Rutledge Drive, Fyfield Way and Hilden Way. If you’re just outside Littleton, we cover Harestock (1 mile south-east), Weeke (1 mile south-east), Sparsholt (1 mile south-west), Westley (2 miles west) and Abbotts Barton (2 miles south-east). Larger places within reach include Eastleigh (8 miles south), Andover (10 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south), Hedge End (12 miles south) and Romsey (9 miles south-west).
Near you in Littleton
We work in homes and buildings around Henry Beaufort School and The Running Horse pub and the streets around them. Littleton’s nearest station is Winchester station, roughly 1.9 miles south-east of the centre. Other landmarks nearby include Royal Observer Corps Museum (1.8 miles south-east) and Royal Hampshire County Hospital (1.9 miles south-east). Not far away are Winnall Moors and Twyford Down.
When it isn’t the sealant
We’ll always be straight with you, so here’s what sealant can’t fix:
- Construction that doesn’t provide fire resistance on its own
- Issuing a fire rating or certificate for a building
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Service penetrations
- Linear gaps
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Plan fire stopping into any work that goes through walls or floors
- Make resealing part of every contractor’s brief
- Do not paint over fire sealant until it has cured
- Include hidden areas like risers in routine checks
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole and the job gets bigger.
Surface 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.
Masonry and concrete
Brick, block and concrete walls and floors are sealed with products tested in masonry. We clean out dust and debris before sealing so the seal has something sound to bond to.
Signs you need fire rated sealant in Littleton
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Common reasons people contact us are:
- Old fire sealant that has split or come away
- New service routes left unsealed after building work
- Open gaps behind door architraves
- Open joints along the top of partitions
Rented homes near Winchester station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Comparing quotes
- What the cure time is
- The length of the guarantee
- Who turns up on the day
- What preparation is included
Nearby places to Littleton
More services for Littleton
What affects the quote in Littleton
The quote reflects the job in front of us. We look at:
- The product the joint needs
- Any mould that needs treating
- When we can work, for business premises
- How many rooms, windows or areas are involved
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- A few pictures by email, if you can
- Where the property is
- Whether it’s a home or a business
- How we’d reach the joints
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
