Fire stopping in Upper Upnor
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Upper Upnor and the surrounding area. Send details for a fixed quote.
- Unsealed openings around new pipes and cables
- Improvised or mixed-product fire seals
- Non-fire-rated filler around services
Fire stopping across Upper Upnor
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
On site: what to expect
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence, and our waste is bagged and taken away as we go. Smaller jobs around Upper Upnor can be grouped with others nearby. You’ll have a fixed quote before work starts.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Foam, ordinary sealant and debris come out first.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
- Arrange parking or a loading space
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or email us.
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About our fire stopping in Upper Upnor
Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. Most enquiries involve head-of-wall gaps with no fire seal and fire seals cut back for extra cables and never reinstated, on joints between fire-resisting walls and floors, pipe penetrations and small duct penetrations where the tested detail allows. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Upper Upnor is the same: the right product in a properly prepared joint.
Barn and farm-building conversions near places like Upper Upnor often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Upper Upnor (ME2)
- Region
- Medway
- Guarantee
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
How the quote is worked out
What shapes the price:
- How much there is to seal
- Joint width, depth and condition
- The site’s rules and procedures
- Distance, for remote addresses
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
What we need to price the job
The more we know, the firmer the quote. When you get in touch, include:
- The asbestos register, for older buildings
- Specification clauses that apply
- Rough lengths or quantities, or drawings if you have them
- Your programme or deadline
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or email a schedule or drawings.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Why deal with it now?
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. For buildings around smaller places like Upper Upnor, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Why choose Mastic Doctor in Upper Upnor
- A Constructionline member, so easy to vet
- Over 20 years of commercial sealing
- CSCS-carded applicators
- Products installed to the manufacturer’s instructions
Take a look at what affects the cost and our accreditations and insurance.
Fire-rated sealing for Upper Upnor buildings
Upper Upnor is about 27 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
Tenant changes at parks like Castle View Business Centre (to the south-west of Upper Upnor) bring new data and services, and openings through fire-resisting walls need the specified seal. For an estates team at a campus like University of Kent - Medway Campus (0.9 miles south-east of Upper Upnor), summer M&E works are typically followed by a round of penetration sealing. Hotels like King Charles Hotel, 1.2 miles to the south-east of Upper Upnor, are refurbished in phases, and each phase can open up compartment walls.
Upper Upnor is about 2 miles north-east of Rochester, in Medway. We cover commercial sites throughout Upper Upnor, for single jobs and planned programmes alike. Our Medway coverage takes in 54 places. Our London page has more on work in that area, about 27 miles away.
Anyone looking for fire stopping in ME2 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include High Street, Upnor Road and Castle Street. If your building is just outside Upper Upnor, we cover Lower Upnor (1 mile north-east), Wainscott (1 mile north-west), Chattenden (1 mile north), Hoo St Werburgh (2 miles north-east) and Cooling Street (3 miles north). Nearby towns on our patch include Gillingham (3 miles south-east), Chatham (3 miles south), Rainham (5 miles south-east), Luton (3 miles south), Park Wood (5 miles south-east) and Lordswood (5 miles south).
Local landmarks in Upper Upnor
We work on buildings around The Kings Arms, Lower Lines Park and Waterfront University Technical College. Also close by are Former Ordnance Store At Chatham Gun Wharf (1.4 miles south) and Waterfront UTC (1.3 miles south-east). The nearest railway station is Strood station, roughly 1.2 miles south-west. A little further out are French Hospital (1.5 miles south-west) and Pentagon Shopping Centre (1.6 miles south). Open spaces near Upper Upnor include Gad's Hill and Rede Common.
Questions we’re asked in Upper Upnor
Do you work on fire-rated sealing in hotels in Upper Upnor?
Yes. We install fire-rated and intumescent sealant where it is specified. We match the product to the wall or floor and the services, and say if something other than sealant is needed.
Could you schedule work at a campus like University of Kent - Medway Campus for the vacation?
Yes, holiday working periods are the norm on campus jobs. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Can you work while the building is occupied?
In the majority of cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
Do you need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit before quoting.
Do you take on multi-site work?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
Do you hold CHAS accreditation?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Walls or floors that aren’t fire-resisting to begin with
- Plastic pipes whose detail calls for a collar or wrap
- Reviewing a building’s overall fire safety
Not sure which it is? You can call 01277 525 020 or send details through our quote form and we will tell you honestly before you book.
Surfaces we seal
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads