Hampshire · England
Fire-rated sealant in Anthill Common, Hampshire
Fire-stopping gaps in Anthill Common need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Holes left by a change of layout
- Door frames with gaps between frame and wall
- Open joints along the top of partitions
Fire rated sealant for homes and businesses in Anthill Common
We can work through a building room by room or floor by floor. It gives you a list to keep with the building’s fire safety documents. We work on pipe & cable gaps, plasterboard & masonry and door frames, and common reasons people get in touch are seals cut through by electricians, plumbers or data installers and gaps left after a refit or conversion.
For a small place like Anthill Common, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.
All of our work is guaranteed for twelve months, in Anthill Common and everywhere else we cover.
- Place
- Anthill Common (PO7)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

What happens if it’s left?
For some gaps, sealant isn’t the right answer and another system is needed. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We will say so if a gap needs something other than sealant. Around Anthill Common, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- Anti-fungal silicone where joints get wet
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
- Fully insured
See our cost guide and what customers say.
Places near Anthill Common
What else we do in Anthill Common
When it isn’t the sealant
In fairness, some problems need a different trade:
- Doors that aren’t fire doors in the first place
- Construction that doesn’t provide fire resistance on its own
- Openings too large for sealant, which need batts, boards or another system
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before booking.
Where we work in Anthill Common
- Pipe & cable gaps
- Service penetrations
- Door frames
- Flats & HMOs
- Linear gaps
- Plasterboard & masonry
Fire rated sealant around Anthill Common
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 work to the specification you are given, installing the product to its tested details.
Community buildings like Church of All Saints are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Anthill Common is about 3 miles north-west of Waterlooville, in Hampshire. Across the PO7 area, we cover fire rated sealant for homes and businesses. Anthill Common is one of 683 places in Hampshire we cover for fire rated sealant. There’s also a page for Portsmouth, about 7 miles away.
We work across PO7 for fire rated sealant and the streets around it. We cover properties on Broad Lane, School Lane and Uplands Road and the roads around them. If you are just outside Anthill Common, we cover Denmead (1 mile south-east), Hambledon (1 mile north), Anmore (2 miles east), Wecock Farm (2 miles east) and Lovedean (3 miles east). Within a short drive, we also cover Winchester (14 miles north-west), Gosport (8 miles south), Havant (5 miles south-east), Eastleigh (12 miles west), Fareham (6 miles south-west) and Chandler's Ford (14 miles west).
What’s near Anthill Common
Locally, jobs take us to homes and businesses close to Fox and Hounds pub and the streets around them. The closest station to Anthill Common is Portchester station, roughly 4.6 miles south of the centre. A little further out are Queen Alexandra Hospital (4.2 miles south). Not far away are St Clair's Meadow and Portsdown Hill.
Do you need fire rated sealant in Anthill Common?
Gaps also open up as buildings move: cracked or debonded sealant leaves an open route through the wall. Knocks, maintenance and building work damage it further.
These are the problems we are asked about most:
- Standard silicone or caulk in a fire-stopping gap
- Gaps left after a refit or conversion
- Unsealed gaps around fire door frames
- Sealant items on a fire risk assessment action list
For landlords with property near Portchester station, any gap left by new services in shared walls should be closed with a fire-rated product.
What your quote should include
- Which sealant they’ll use, and why
- Are they insured?
- How the colour is chosen
- Is VAT in the price?
Questions from Anthill Common
Can you help a landlord with a rental near Portchester station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do fire rated sealant in Anthill Common?
Yes, Anthill Common is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is intumescent sealant the same as fire-rated sealant?
An intumescent sealant expands when it gets hot. It’s one type of fire-rated sealant; the right one depends on the gap and what passes through it.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do you offer different sealant colours?
Usually, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before any work starts.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
How we quote for fire rated sealant
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- Working hours on commercial sites
- The old material and how stubborn it is
- The type of sealant required
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What we need to know
To help us quote quickly, let us know:
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- Where the property is
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Report cracked or damaged seals as soon as you notice them
- Photograph sealed gaps before they’re covered up
- Check risers, ceiling voids and cupboards during building checks
- Store the list of sealed gaps with your building paperwork
File the record of locations and products with your fire safety paperwork. It helps whoever checks the building next.
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
The work is kept neat and contained to the area we are working on. Expect the work to take from a few hours to a few days, depending on the number of gaps and the access, and we explain the cure time before we leave. Somewhere as small as Anthill Common, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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 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 records.
Before we arrive
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
