Hampshire · England

Fire Rated Sealant in Havant

Fire rated sealant in Havant from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Old fire sealant that has split or come away
  • Gaps flagged on a fire risk assessment
  • Unsealed gaps around fire door frames

Need fire rated sealant in Havant?

What happens on the day

At the end, we look at the finished work together. The visit itself usually takes anything from a few hours to several days, depending on how many gaps there are, depending on how much there is to do. Parking in a town like Havant is generally straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. Anything that isn’t fit for the job comes out, and the gap is cleaned.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Locations and products are noted so you have them on file.

How to prepare

  • Tell us about any previous sealing or DIY attempts
  • For indoor joints, keep the area dry beforehand if you can
  • Mention any parking rules near the property

Getting a quote

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

Get a price

Advice

Fire rated sealant for homes and businesses in Havant

A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That’s the part we focus on, one gap at a time. We work on flats & HMOs, plasterboard & masonry and linear gaps, and common reasons people get in touch are old fire sealant that has split or come away and open joints along the top of partitions.

Shared washrooms take far more use than a home bathroom, and their sealant shows it, and fire-rated joints need restoring whenever new services are run through a wall. For a building in Havant, we plan timings around how it’s used.

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

Location
Havant (PO9, PO11, PO7)
Wider area
Hampshire
Cover
One year on every job
Quote
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Should I try it myself first?

Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.

Quotes for fire rated sealant in Havant

Jobs vary more than people expect. The main factors:

  • Any working-time requirements on site
  • How easy the joints are to reach
  • The number of rooms or windows
  • Any mould that needs treating

A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.

What to tell us for a quote

Before you ask for a quote, have a think about:

  • How we’d reach the joints
  • Whether it’s a home or a business
  • Whether it has been sealed before
  • The address or postcode of the job

For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.

Why it’s worth doing now in Havant

An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the work involved is often modest. Around Havant, failed sealant lets water into hidden places, such as under the floor, behind a panel or into a wall. Whatever the joint, failed sealant only gets worse.

What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.

What you get with us

  • A 12-month guarantee on all work
  • Old sealant always removed completely
  • Anti-fungal silicone where joints get wet
  • 4.9 on Google from 180+ five-star reviews

See our cost guide or our reviews.

How the job changes by surface

Door frames

A door can only do its job if the gap behind its frame is sealed too. We fill it with a fire-rated product suited to the materials either side.

Masonry and concrete

Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before applying the sealant.

FAQs for Havant

Do you work in hotels near Havant?

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.

Can you do fire rated sealant in Havant?

Yes, Havant is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.

Can tenants book the work?

We can work for tenants, landlords or agents. Just make sure your landlord agrees.

Can you do several jobs on one visit?

Yes. Just list everything you need and you will get one quote.

Will you assess my building’s fire safety?

No. Your fire risk assessor, designer or building control decides that. We apply fire-rated sealant to the requirements they set.

What should I tell you?

Just the basics: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or email us.

Can I do it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What does intumescent mean?

Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one of the options. The specification and the tested detail decide which is used.

Do you need fire rated sealant in Havant?

Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was 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:

  • Damaged fire sealant left by other trades
  • Unsealed gaps where pipes and cables go through a wall
  • Linear gaps at the head of walls
  • Cracked or shrunken fire-rated sealant

Schools such as Trosnant Infant School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.

Comparing quotes

  • How the colour is chosen
  • Who turns up on the day
  • Which sealant they’ll use, and why
  • How the surfaces are prepared before sealing

10 questions to ask before you book

Fire rated sealant in Havant: local notes

For seaside hotels, guest houses and holiday lets around Havant, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.

Rented homes near Havant station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product. For buildings such as St Francis, gaps around pipes and cables are worth checking after any building work there.

Havant is about 18 miles east of Southampton, in Hampshire. Jobs in Havant get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our Hampshire coverage runs to 683 places, and Havant is one of them.

All of PO9, PO11 and PO7 is within our area for fire rated sealant. Whether your property is on Colemore Square, Market Parade and Juniper Square or a nearby road, we can help. With the A27 and A3(M) close by, Havant is simple for us to get to for fire rated sealant. Other places close to Havant include Leigh Park (1 mile north), Denvilles (1 mile south-east), Durrants (2 miles north-east), Langstone (2 miles south) and Warblington (2 miles south-east). We also work in nearby towns such as Gosport (8 miles south-west), Fareham (9 miles west), Horndean (3 miles north), Hedge End (14 miles west), Petersfield (10 miles north) and Locks Heath (12 miles west). Being one of Hampshire’s larger places, Havant has homes, rented property and businesses of every kind.

Landmarks near Havant

Typical jobs here are in homes near The Perseverance pub, St Albans Church and Havant College and the streets around them. The closest station to Havant is Havant station, roughly 0.6 miles south. Nearby you will also find Havant War Memorial Hospital (0.6 miles south) and Havant Museum (0.9 miles south-east). For a walk, there’s Southmoor Nature Reserve.

Map of Havant © OpenStreetMap contributors

Aftercare tips

Aftercare is simple:

  • Allow for resealing whenever new services are run
  • Take pictures of fire stopping before ceilings or boxing go back
  • Make resealing part of every contractor’s brief
  • Store the list of sealed gaps with your building paperwork

Don’t add foam, filler or ordinary sealant over a fire seal. Repairs should use a matching fire-rated product. Ask us if you’re not sure which product was used.

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.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job