Hampshire · England
Fire-rated sealant in Blendworth, Hampshire
Professional fire rated sealant in and around Blendworth, with every bit of old sealant taken out first and a one-year guarantee.
- Fire seals that have cracked with movement
- Holes left by a change of layout
- Damaged fire sealant left by other trades
About our fire rated sealant in Blendworth
Bigger jobs can be worked through in stages, flat by flat or floor by floor, noting the locations and products as we go. It gives you a list to keep with the building’s fire safety documents. If you have linear gaps at the head of walls and open gaps behind door architraves, we can help, on flats & HMOs, service penetrations and door frames alike.
For holiday lets, converted business premises or a community building near Blendworth, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Blendworth (PO8)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in Blendworth
Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
The most common problems we see are:
- Open gaps behind door architraves
- Gaps where walls meet ceilings or slabs
- New service routes left unsealed after building work
- Standard silicone or caulk in a fire-stopping gap
Managing a site like Horndean Church of England Junior School? Then service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- Whether VAT is included
- When the joint can take water or movement
- The length of the guarantee
- How the joint is cleaned and prepared
Towns and villages near Blendworth
Also in Blendworth
What affects the cost of fire rated sealant
The price is agreed before any work begins. It’s based on:
- How many areas need sealing
- The size of the job
- The old material and how stubborn it is
- Any working-time requirements on site
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Helping us quote
Photos help, but a description is a good start. Please mention:
- Where the property is
- A few photos by email, if you can
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
Workplaces and buildings in Blendworth
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 let a flat or house near Rowlands Castle station, any gap left by new services in shared walls should be closed with a fire-rated product. If you look after a church, hall or community building such as Church of the Holy Trinity, service openings in its walls need the right fire-rated sealant, as in any building.
Blendworth is about 1 mile north-east of Horndean, in Hampshire. Jobs in Blendworth get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, Blendworth among them. For nearby work, see our Portsmouth page, about 8 miles away.
Postcode districts we cover here for fire rated sealant: PO8. Other places close to Blendworth include Chalton (2 miles north-east), Forestside (3 miles east), West Marden (4 miles east), Buriton (4 miles north) and Weston (5 miles north). Further out, we also cover Gosport (11 miles south-west), Havant (4 miles south), Fareham (10 miles south-west), Hedge End (14 miles west), Waterlooville (3 miles south-west) and Petersfield (6 miles north).
Landmarks near Blendworth
Around Blendworth, our work takes us to homes and buildings near Horndean Technology College and The Ship & Bell pub. For rail, the closest station is Rowlands Castle station, about 2.1 miles south-east. Nearby you’ll also find Havant War Memorial Hospital (4.3 miles south) and Clanfield Earthwork (2.1 miles north). Green spaces nearby include Windmill Hill.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Keep the record of products and locations with your fire safety documents
- Photograph sealed gaps before they’re covered up
- Ask which product was used before you paint
- Plan fire stopping into any work that goes through walls or floors
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is normally a straightforward job.
Why deal with it now?
Squirting in whichever sealant is nearest does not make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, which is why we match the product and the method to each gap. Where a wall is exposed, as many are in small places like Blendworth, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What it costs depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Why choose Mr Mastic in Blendworth
- Old sealant always removed completely
- Domestic, commercial and hotel work
- We’re fully insured
- 20+ years of sealant experience
How it works
At the end, we look at the finished work together and explain the cure time. The visit itself normally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the size of the job. Somewhere like Blendworth 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.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
- Keep children and pets away from the work area
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work.
Advice
How the job changes by surface
Door frames
Frame gaps are normally hidden behind the architrave. We seal any open gap to the product’s tested details so the architrave can be refitted.
Masonry and concrete
Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point against the product’s tested range.
Your questions about fire rated sealant in Blendworth
Can you help a landlord with a rental near Rowlands Castle station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you cover smaller places like Blendworth?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you give us a record of the work?
Yes. Locations and products are written up when we finish. Tell us if your assessor needs it in a particular format.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
Can you work in occupied buildings?
Yes. Occupied flats, HMOs, offices and schools are all fine. Early starts or out-of-hours work can be arranged where it’s needed.
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 and we’ll tell you if we spot problems with the door.
What does intumescent mean?
Fire-rated is the broad term for sealants tested for fire stopping. Intumescent ones swell in heat, and they’re one option among several. The specification and the tested detail decide which is used.