Hampshire · England
Fire Rated Sealant in South Wonston
Fire rated sealant for South Wonston and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Old fire sealant that has split or come away
- Standard silicone or caulk in a fire-stopping gap
- Sealant items on a fire risk assessment action list
Fire rated sealant in South Wonston, done properly
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. We’re often asked to deal with gaps filled with a product that isn’t fire-rated and unsealed gaps where pipes and cables go through a wall, across plasterboard & masonry, flats & HMOs and pipe & cable gaps.
If you have holiday lets, a converted barn used for business or a community building near South Wonston, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Every job comes with a one-year guarantee.
- Location
- South Wonston (SO21)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in South Wonston
Sealant is not the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We’ll say so if a gap needs something other than sealant. In a small place like South Wonston, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What you get with us
- One-year guarantee on every job
- Tidy, careful work
- Over 20 years’ experience
- Homes, businesses and hotels
Take a look at our cost guide or what customers say.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
What affects the quote in South Wonston
The quote reflects the job in front of us. We look at:
- The size of the job
- Access and height
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.
What to tell us for a quote
Before you ask for a quote, have a think about:
- The type of property
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
- The address or postcode of the job
There’s no standard price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
Questions from South Wonston
Do you cover South Wonston for fire rated sealant?
Yes, South Wonston is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
Do you work for landlords with property near Winchester station?
Yes. We work for letting agents and landlords as well as homeowners. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you work in occupied buildings?
Yes. We regularly work in flats, HMOs, schools and offices while they’re in use and we plan access around the people using them. Early starts or out-of-hours work can be arranged if that suits the building.
Can I use normal mastic around a pipe through a fire wall?
No. Standard sealants are not made or tested to stop fire. If it’s been used, we remove it and use the right product.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
Do you certify the fire stopping?
Ratings and certificates aren’t something we issue. The performance comes from the product’s tested details and the specification from your assessor or designer; we install to those details and record what we did.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of gaps, and longer for a whole building, and the area is left clean. For a village or hamlet like South Wonston, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products.
Before we arrive
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details, and pictures are welcome.
Read more
How to look after the new joints
Looking after new joints is easy:
- Plan fire stopping into any work that goes through walls or floors
- Don’t paint over fire sealant until it has cured
- Store the list of sealed gaps with your building paperwork
- Tell trades working in the building that fire seals must be put back
File the record of locations and products with your fire safety paperwork. It saves time at the next inspection or assessment.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so the item can be closed.
What we’re called out for in South Wonston
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.
Keep an eye out for any of the following:
- Gaps filled with a product that is not fire-rated
- Linear gaps at the head of walls
- Seals cut through by electricians, plumbers or data installers
- Unsealed gaps around fire door frames
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.
What your quote should include
- The length of the guarantee
- Is VAT in the price?
- Whether they seal over old material or remove it
- How the surfaces are prepared before sealing
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Problems with the door itself rather than the gap around the frame
- Deciding what fire stopping a building needs
- Construction that does not provide fire resistance on its own
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Door frames
- Pipe & cable gaps
- Linear gaps
- Service penetrations
- Plasterboard & masonry
- Flats & HMOs
What fire rated sealant looks like in South Wonston
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.
Community buildings like St Margaret's are part of the picture too: gaps around pipes and cables are worth checking after any building work there. Managing a site like South Wonston Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
South Wonston is about 4 miles north of Winchester, in Hampshire. Our applicators cover fire rated sealant for homes and businesses in South Wonston and the surrounding area, as part of our work across Hampshire. Our area takes in 683 places across Hampshire, large and small. Southampton is on our list too, around 14 miles away.
Every address in SO21 is covered for fire rated sealant, from the main roads to the quietest streets. If you need fire rated sealant at a property on Norris Gardens, Wrights Way and Lovell Close or a nearby road, our applicators can take on the job. We also cover the places around South Wonston: Worthy Down (1 mile south), Springvale (2 miles south-east), Sutton Scotney (2 miles north), Stoke Charity (2 miles north-east) and Hunton (3 miles north). Larger places within reach include Basingstoke (14 miles north-east), Winchester (4 miles south), Eastleigh (11 miles south), Andover (9 miles north-west), Chandler's Ford (10 miles south) and Alton (15 miles east).
Around South Wonston
The closest station to South Wonston is Winchester station, roughly 3.7 miles south. Nearby you’ll also find Royal Hampshire County Hospital (4 miles south) and Winchester Castle (4.1 miles south). Open spaces near South Wonston include Winnall Moors.