Medway · England
Fire Rated Sealant in Lower Upnor
Fire rated sealant for Lower Upnor and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Sealant items on a fire risk assessment action list
- Door frames with gaps between frame and wall
- Holes left by a change of layout
Do you need fire rated sealant in Lower Upnor?
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 particularly when it was the last job before handover.
If you can see any of these, it’s time to have the joints looked at:
- New service routes left unsealed after building work
- Damaged fire sealant left by other trades
- Cracked or shrunken fire-rated sealant
- Sealant items on a fire risk assessment action list
If you look after a church, hall or community building such as St Philip & St James, gaps around pipes and cables are worth checking after any building work there.
Before you book anyone
- What insurance they hold
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- What happens if the job turns out different
Fire rated sealant for homes and businesses in Lower Upnor
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, gap by gap. Typical jobs include ordinary sealant used where a fire-rated product was needed and gaps left after a refit or conversion, on pipe & cable gaps, door frames and linear gaps.
In a village or hamlet like Lower Upnor, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Lower Upnor (ME2)
- Region
- Medway
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Workplaces and buildings in Lower Upnor
For seaside hotels, guest houses and holiday lets around Lower Upnor, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Schools such as Chattenden Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in. For landlords with property near Strood station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Lower Upnor is about 2 miles north-east of Rochester, in Medway. Wherever you are in the ME2 postcode area, we cover fire rated sealant for homes and businesses. Our area takes in 68 places across Medway, large and small. Our Chelmsford page covers work nearby.
Postcode districts we cover here for fire rated sealant: ME2. Whether your property is on Galleon Way, Cutter Close and Schooner Walk or a nearby road, we can help. Other places close to Lower Upnor include Upper Upnor (1 mile south-west), Chattenden (1 mile north), Wainscott (1 mile west), Hoo St Werburgh (2 miles north-east) and Cooling Street (2 miles north). Further out, we also cover Gillingham (3 miles south-east), Chatham (4 miles south), Rainham (5 miles south-east), Strood (3 miles south-west), Luton (3 miles south) and Park Wood (5 miles south-east).
Around Lower Upnor
Typical jobs here are in homes near Former Ordnance Store At Chatham Gun Wharf, The Hundred of Hoo Academy and Waterfront University Technical College, among other places. Other local landmarks include Lower Lines Park (1.3 miles south-east) and The Ship pub (under half a mile east). For rail, the closest station is Strood station, roughly 1.6 miles south-west. Other landmarks nearby include Upnor Castle (less than half a mile south) and Pentagon Shopping Centre (1.9 miles south). The countryside around Lower Upnor includes Rede Common and Gad's Hill.
How it works
You don’t need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours for a handful of gaps, and longer for a whole building for a typical job. Somewhere as small as Lower Upnor, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We plan the order of work and access, floor by floor or flat by flat.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Before we arrive
- Let us know about parking restrictions
- Clear items away from the joints we are working on
- Mention any tricky access
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
Related advice
Different surfaces, different methods
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. We seal it with a product tested for that service and gap size.
Masonry and concrete
Holes through concrete and block are rarely neat. We measure the gap at its widest point to make sure it suits the product.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Issuing a fire rating or certificate for a building
- Openings too large for sealant, which need batts, boards or another system
- Assessing a building’s fire safety
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Linear gaps
- Service penetrations
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
What affects the cost of fire rated sealant
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- The product the joint needs
- Mould in or behind the old joints
- Whether the work is at height
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What to tell us for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
- Photos by email, if that is easy
- Any access issues, like height or stairs
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details and send pictures if you have them.
Common questions in Lower Upnor
Do you cover Lower Upnor for fire rated sealant?
Yes. We work across London and the South East, and Lower Upnor is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
Is Lower Upnor within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Is the work guaranteed?
Yes. Every job comes with our one-year guarantee.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Can you work in occupied buildings?
Yes. Occupied flats, HMOs, offices and schools are all fine and we plan access around the people using them. Out-of-hours work can be arranged where it’s needed.
Nearby places to Lower Upnor
Also in Lower Upnor
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Make resealing part of every contractor’s brief
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Look in service cupboards and ceiling voids from time to time
- Take photos of fire stopping before ceilings or boxing go back
Let contractors know where fire stopping has been done, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Get it sealed and recorded.