Hampshire · England
Fire Rated Sealant in South Harting
Intumescent and fire-rated sealant around gaps, frames and service penetrations in South Harting, with a one-year guarantee on every job. Call for a quick quote.
- Cracked or shrunken fire-rated sealant
- New service routes left unsealed after building work
- Unsealed gaps around fire door frames
Fire rated sealant in South Harting, done properly
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, one gap at a time. We’re often asked to deal with new service routes left unsealed after building work and standard silicone or caulk in a fire-stopping gap, on flats & HMOs, pipe & cable gaps and service penetrations.
In a village or hamlet like South Harting, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
There’s a 12-month guarantee on every job.
- Place
- South Harting (GU31)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in South Harting
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Keep an eye out for any of the following:
- Open gaps behind door architraves
- Gaps flagged on a fire risk assessment
- New service routes left unsealed after building work
- Gaps filled with a product that isn’t fire-rated
Letting a property close to Petersfield station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Comparing quotes
- What the quote includes, VAT included or not
- How long the guarantee is
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Landlord and commercial work in South Harting
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Aftercare tips
So the new joints stay in good condition:
- Flag any open gap you spot round a pipe or cable
- Include fire stopping when you schedule refits
- Tell trades working in the building that fire seals must be put back
- Keep general-purpose foam and caulk away from fire-stopping gaps
Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.
An open gap is not only a fire issue: noise, draughts and even pests can come through too. Sealing them early helps on every front.
Also near South Harting
More services for South Harting
When something else is needed
New sealant can’t fix everything, and we will tell you before any work starts. It won’t solve:
- Issuing a fire rating or certificate for a building
- Construction that does not provide fire resistance on its own
- Problems with the door itself rather than the gap around the frame
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Linear gaps
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
- Pipe & cable gaps
- Door frames
Why it’s worth doing now in South Harting
Sealant is not the fix for every opening. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. We will say so if a gap needs something other than sealant. In a small place like South Harting, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
Why book with us
- Trusted Arbo and Everbuild sealants
- An ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
See our cost guide or customer reviews.
What we do, step by step
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work starts. The work normally takes anything from a few hours to several days, depending on how many gaps there are. Somewhere as small as South Harting, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
- Mention if the joints have been sealed before
Getting a quote
We quote each job on its own. Simply ring 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.
Related advice
South Harting: your questions answered
I let a flat near Petersfield station. Can you help?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Do you cover smaller places like South Harting?
Yes, South Harting is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can ordinary silicone be used in a fire-stopping gap?
No. It might close the gap, but it is not a fire-rated seal. Use a product tested for that gap and service and we can apply it for you.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Can you tell me how many minutes the seal will last?
We don’t issue ratings or certificates ourselves. The performance comes from the product’s tested details and the specification from your assessor or designer.
Does someone need to be in?
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.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Fire rated sealant around South Harting
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.
If you look after a building such as Harting CofE Primary School, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as The Parish Church of St Mary & St Gabriel, older buildings that have had new heating or wiring often have service gaps worth checking.
South Harting is about 3 miles south-east of Petersfield, in Hampshire. Anywhere in GU31, we cover fire rated sealant for homes and businesses. 683 places in Hampshire are on our list, large and small. There’s also a page for Portsmouth, roughly 14 miles from South Harting.
Jobs for fire rated sealant in GU31 works the same way as everywhere else we cover. Streets in the area include The Square, Smithfield and Mill Lane, all of which we cover. If you’re just outside South Harting, we cover East Harting (1 mile east), Nyewood (2 miles north-east), Elsted (2 miles east), Compton (3 miles south) and Dumpford (3 miles north-east). Within a short drive, we also cover Havant (9 miles south-west), Horndean (7 miles south-west), Alton (13 miles north), Waterlooville (9 miles south-west), Petersfield (3 miles north-west) and Purbrook (10 miles south-west).
Around South Harting
We work in homes and buildings around The Ship Inn. South Harting’s nearest station is Petersfield station, about 3.7 miles north-west of the centre. Nearby you’ll also find Bear Museum (3.3 miles north-west) and Petersfield Community Hospital (3.6 miles north-west). The countryside around South Harting includes Iping and Stedham Commons and Oakham Hill.