East Sussex · England
Fire-rated sealant in Southover, East Sussex
We cover Southover for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Sealant items on a fire risk assessment action list
- Gaps left after a refit or conversion
- Unsealed gaps around fire door frames
Fire rated sealant in Southover
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. Common call-outs are for new service routes left unsealed after building work and gaps where walls meet ceilings or slabs, on flats & HMOs, plasterboard & masonry and pipe & cable gaps.
Commercial work around a smaller place like Southover generally means a pub, a shop, a school or small business units rather than office blocks. Each needs the same care with its sealant as any larger building.
We stand behind the work with a one-year guarantee.
- Where
- Southover (BN7, BN8)
- Region
- East Sussex
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Certifying a building or signing off its fire safety
- Construction that doesn’t provide fire resistance on its own
- Assessing a building’s fire safety
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Door frames
- Linear gaps
- Plasterboard & masonry
- Pipe & cable gaps
- Service penetrations
- Flats & HMOs
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to several days, depending on how many gaps there are. A visit to Southover is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your records.
Getting ready for the visit
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
- Tell us about any water getting in
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
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Why act early in Southover
Squirting in whichever sealant is nearest does not make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, so both the product and the method matter. Around Southover, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Why us?
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
- A 12-month guarantee on all work
Take a look at how sealant jobs are priced and customer reviews.
What fire rated sealant looks like in Southover
There are hotels and other places to stay in and around Southover. Hotel work can be planned room by room, with out-of-hours working where needed. 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 work to the specification you are given, installing the product to its tested details.
If you look after a building such as Western Road Community Primary School, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Church of St Michael, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Lewes station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Southover is about 1 mile south-east of Lewes, in East Sussex. Every kind of property in Southover can book us for fire rated sealant. The work is guaranteed for a year. 289 places in East Sussex are on our list, large and small. Our Brighton page covers work nearby.
Our applicators cover all of the BN7 and BN8 postcode area for fire rated sealant and the streets around it. If you need fire rated sealant at a property on Ham Lane, New Road and Bell Lane or anywhere close by, our applicators can take on the job. You will find Southover on the A277 and A2029, which makes it straightforward to reach with everything needed for fire rated sealant. We also cover the places around Southover: Cliffe (1 mile north-east), Lewes (1 mile north-west), South Malling (1 mile north), Iford (2 miles south-west) and Offham (2 miles north-west). Larger places within reach include Eastbourne (13 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (8 miles north-east) and Newhaven (6 miles south).
Landmarks near Southover
We work in homes and buildings around Kings Head pub, Priory School and Railway Land. There’s a railway station in Southover itself: Lewes station. Other landmarks nearby include Lewes Castle (less than half a mile north-west) and Museum of Agricultural Bygones (3.9 miles north-east). The countryside around Southover includes Cliffe Hill and Southerham Farm.
Places near Southover
What else we do in Southover
Your questions about fire rated sealant in Southover
Is Southover within the area you cover?
Yes, Southover is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Lewes station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Will you assess my building’s fire safety?
No. That is for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Do you have insurance?
Yes. Mr Mastic is fully insured.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What’s the difference between intumescent and fire-rated sealant?
An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all, and the choice depends on the gap.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Landlords, agents and businesses in Southover
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
For anyone letting property in or around Southover, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
What the job involves on each surface
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach.
Service penetrations
New gaps tend to show up where services have been added. Old or unsuitable filler comes out before the right sealant goes in over any backing the detail calls for.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Include fire stopping when you schedule refits
- Ask which product was used before you paint
- Report cracked or damaged seals as soon as you notice them
Avoid covering a sealed gap with anything that isn’t part of the tested detail. Repairs should use a matching fire-rated product. Ask us if you are not sure which product was used.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.