Kent · England
Lower Hartlip Fire Rated Sealant
Professional fire rated sealant in and around Lower Hartlip, with old sealant always removed completely and a 12-month guarantee.
- Seals cut through by electricians, plumbers or data installers
- Ordinary sealant used where a fire-rated product was needed
- Cracked or shrunken fire-rated sealant
Fire rated sealant in Lower Hartlip
Bigger jobs can be worked through in stages, flat by flat or floor by floor, with each location and product recorded. It gives you a list to keep with the building’s fire safety documents. We work on pipe & cable gaps, service penetrations and linear gaps, and common reasons people get in touch are unsealed gaps around fire door frames and gaps left after a refit or conversion.
Somewhere as small as Lower Hartlip, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. They all have washrooms, kitchens and service openings that need the right sealant.
Every job is covered by our one-year guarantee, wherever you are in Kent.

- Place
- Lower Hartlip (ME9)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
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.
Places near Lower Hartlip
Also in Lower Hartlip
Why it’s worth doing now in Lower Hartlip
Squirting in whichever sealant is nearest doesn’t make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. Where a wall is exposed, as many are in small places like Lower Hartlip, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
Why choose Mr Mastic in Lower Hartlip
- Every job guaranteed for a year
- An ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
Take a look at how sealant jobs are priced and customer reviews.
FAQs for Lower Hartlip
Is Lower Hartlip within the area you cover?
Yes, Lower Hartlip is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you cover Lower Hartlip for fire rated sealant?
Yes. Our work covers London and the South East, and Lower Hartlip is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can you work in occupied buildings?
Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. The order of work and access are planned with you.
Can ordinary silicone be used in a fire-stopping gap?
No. It might close the gap, but it isn’t a fire-rated seal. A tested fire-rated product is needed.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Is there a guarantee?
Yes. Every job comes with our 12-month guarantee.
How the job changes by surface
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified, flat by flat if needed.
Service penetrations
New gaps tend to show up where services have been added. We clean out what’s there and reseal to the right depth.
Quotes for fire rated sealant in Lower Hartlip
The quote reflects the job in front of us. We take into account:
- The size of the job
- Whether the work is at height
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
To help us quote quickly, please include:
- How we’d reach the joints
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
For fire rated sealant in Lower Hartlip, phone 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.
Work for landlords, hotels and businesses
For anyone letting property in or around Lower Hartlip, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Workplaces and buildings in Lower Hartlip
For seaside hotels, guest houses and holiday lets around Lower Hartlip, 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, 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.
Schools such as Hartlip Endowed Church of England Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in. For buildings such as Church of St Michael, older buildings that have had new heating or wiring often have service gaps worth checking. Rented homes near Newington station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Lower Hartlip is about 3 miles south-east of Gillingham, in Kent. Jobs in Lower Hartlip get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Lower Hartlip is one of 922 places in Kent we cover. There’s also a page for Chelmsford, roughly 28 miles from Lower Hartlip.
We work across the ME9 postcode area for fire rated sealant and the streets around it. We cover properties on Lower Hartlip Road, Grainey Field and Old House Lane and the roads around them. If you’re just outside Lower Hartlip, we cover Hartlip (1 mile west), Breach (1 mile north-east), Newington (1 mile east), Moor Street (1 mile north-west) and Meresborough (1 mile west). We also work in nearby towns such as Maidstone (8 miles south-west), Sittingbourne (4 miles east), Gravesend (13 miles north-west), Faversham (11 miles east), Northfleet (14 miles north-west) and Minster (8 miles north-east).
Local landmarks in Lower Hartlip
We work in homes and buildings around Foxburrow Wood and Leigh Academy Rainham, among other places. The nearest railway station is Newington station, about 1.1 miles north-east of the centre. Other landmarks nearby include Court Hall Museum (3.8 miles east) and Bayford Court (4.3 miles east). Green spaces nearby include Detling Hill and Bishop Saltings.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Flag any open gap you spot round a pipe or cable
- File the fire-stopping record where your assessor can find it
- Look in service cupboards and ceiling voids from time to time
- Allow for resealing whenever new services are run
Follow the cure time we give you before decorating over the sealant. Not every fire-rated sealant takes paint.
It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole.
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Lower Hartlip, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
How to prepare
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
