Hampshire · England
Fire Rated Sealant in Highcliffe
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Highcliffe and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Standard silicone or caulk in a fire-stopping gap
- Gaps flagged on a fire risk assessment
- Gaps around pipes and cables through fire-resisting walls
About our fire rated sealant in Highcliffe
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. We work on flats & HMOs, service penetrations and linear gaps, and people most often call us about unsealed gaps around fire door frames and gaps filled with a product that isn’t fire-rated.
In a smaller place like Highcliffe, commercial jobs tend to be smaller buildings: a pub, a surgery, a school, a shop or a few business units. Each needs the same care with its sealant as any larger building.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Place
- Highcliffe (SO23, SO21, SO20)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Sign-off of the building, which sits with building control or your assessor
- Deciding what fire stopping a building needs
- Walls or floors that weren’t built to resist fire
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Linear gaps
- Service penetrations
- Flats & HMOs
- Door frames
- Pipe & cable gaps
- Plasterboard & masonry
What affects the quote in Highcliffe
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- Any mould that needs treating
- The product the joint needs
- The size of the job
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details.
What we’re called out for in Highcliffe
Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.
These are the problems we are asked about most:
- Fire stopping disturbed by later work
- Gaps left after a refit or conversion
- Joints picked up in a fire-stopping survey
- Ordinary sealant used where a fire-rated product was needed
Schools such as All Saints Church of England Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.
Questions to ask before booking
- What the cure time is
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- Who turns up on the day
The process
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on how many gaps there are. For a job in Highcliffe, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
Ask for a quote
For fire rated sealant in Highcliffe, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Common questions in Highcliffe
Do you work in hotels near Highcliffe?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Do you cover smaller places like Highcliffe?
Yes. Highcliffe is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Will you assess my building’s fire safety?
No, we don’t assess buildings. When your assessor or designer has set out what’s needed, we will quote for the sealant work on it.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Why it’s worth doing now in Highcliffe
Items left open on a fire risk assessment tend to come back at the next review. Getting them done and written up means you can show the action was taken. Homes in smaller places like Highcliffe can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Why choose Mr Mastic in Highcliffe
- We leave the area clean and tidy
- Fully insured
- Approved under the ARBOMaster scheme
- Anti-fungal sanitary silicone in wet areas
Read what affects the cost or what customers say.
Nearby places to Highcliffe
More services for Highcliffe
Fire rated sealant in Highcliffe: local notes
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. There are hotels and other places to stay in and around Highcliffe. Hotel work can be planned room by room, with out-of-hours working where needed.
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. If you look after a church, hall or community building such as All Saints, gaps around pipes and cables are worth checking after any building work there.
Highcliffe is about 1 mile east of Winchester, in Hampshire. Highcliffe gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Hampshire, we cover 683 places, and Highcliffe is one of them. There’s also a page for Southampton, about 10 miles away.
Our applicators cover all of SO23, SO21 and SO20 for fire rated sealant and the streets around it. Local streets include Moss Road, Vale Road and Domum Road. Main roads around Highcliffe include the M3 and A31, so getting to you is simple. If you’re just outside Highcliffe, we cover Bar End (1 mile south-west), Winchester (1 mile west), Hyde (1 mile north-west), St Cross (1 mile south-west) and Abbotts Barton (1 mile north). Within a short drive, we also cover Eastleigh (6 miles south), Fareham (15 miles south), Andover (13 miles north-west), Totton (13 miles south-west), Chandler's Ford (6 miles south-west) and Hedge End (10 miles south).
Around Highcliffe
In Highcliffe, that means homes and buildings near St. Cross Park, Leigh House Hospital and Heart in Hand pub, among other places. For rail, the closest station is Winchester station, about 1.1 miles north-west of the centre. A little further out are St John's Rooms And Chapel (within half a mile north-west) and Wolvesey Castle (under half a mile west). Green spaces nearby include Twyford Down and Winnall Moors.
Different surfaces, different methods
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.
Door frames
We deal with the gap around the frame, not the door. Doors, seals and closers are for a door specialist and we’ll mention anything we notice.