Fire Stopping in Fenn Street
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Fenn Street and the surrounding area. Send photos or drawings for a fixed quote.
- Penetration schedules that need working through
- Open linear gaps along the top of fire-resisting walls
- Unsealed openings around new pipes and cables
Fire stopping near Fenn Street
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
When to bring in a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
How we handle fire stopping in Fenn Street
It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on sites in Fenn Street. If you are dealing with unsealed joints where partitions meet the slab and damaged fire seals in risers and voids, we can help. Looking for mastic applicators who cover Fenn Street? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Smaller places such as Fenn Street still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Where
- Fenn Street (ME3)
- Wider area
- Medway
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Fire stopping around Fenn Street: how the place shapes the job
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. Central London is about 29 miles from Fenn Street. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.
For an estates team at a campus like University of Greenwich - Medway, which lies south-west of Fenn Street, summer M&E works are typically followed by a round of penetration sealing. On a hospital site such as Medway Maritime Hospital, 4.9 miles south of Fenn Street, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. In a building such as Church of St Mary, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Fenn Street is about 5 miles north of Gillingham, in Medway. Commercial clients in Fenn Street can call on us for service penetrations, as part of our coverage of Medway. 54 places across Medway fall within our area, Fenn Street among them. For work in that direction, see our London page, about 29 miles away.
Business premises anywhere in ME3 are within our area for service penetrations. We cover commercial and managed buildings on Winterberry Avenue, Sharnal Street and Parbrook Road and the roads nearby. Close to Fenn Street, our area also takes in Sharnal Street (1 mile south-west), High Halstow (1 mile west), Tunbridge Hill (1 mile south-east), St Mary Hoo (1 mile north-east) and Kingsnorth (1 mile south-east). Bigger towns within reach include Gillingham (5 miles south), Chatham (7 miles south), Rochester (5 miles south-west), Rainham (6 miles south), Strood (6 miles south-west) and Luton (6 miles south).
What’s near Fenn Street
Locally, jobs take us to sites close to The Hundred of Hoo Academy, among other places. Fenn Street’s nearest station is Gillingham (Kent) station, roughly 4.4 miles south of the centre. A little further out are Medway Maritime Hospital (4.9 miles south) and Upnor Castle (3.7 miles south-west). Green spaces nearby include Bishop Saltings.
Surface by surface
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables.
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on and we confirm each before sealing.
Quoting for work in Fenn Street
There’s no standard rate for sealant work, since sites vary so much. What we take into account:
- The size and state of each joint
- Phasing around occupants
- Quantities, in metres or numbers
- Distance, for remote addresses
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Before you send an enquiry
Whether it’s one area or a whole building, the same details help:
- Your programme or deadline
- Approximate linear metres or a joint schedule
- The site address and postcode
- The product your specification calls for
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.
Questions we’re asked in Fenn Street
How does the move away from BS 476 affect penetration seals in Fenn Street?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Will you plan work around the academic year at somewhere like University of Greenwich - Medway?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
How do you deal with asbestos in old sealant?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Can weather delay the job?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
On site: what to expect
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access, and our waste is bagged and taken away as we go. For work around Fenn Street, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
What we need from you
- Tell us your opening times and when work is allowed
- Send any specification or drawings in advance
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or speak to us on 01277 525 020 or send photos by email to discuss it first.
Related advice
Why it’s worth doing now in Fenn Street
Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down and each detail can be checked as we go. One visit to deal with every failing joint makes more sense than several trips to a place like Fenn Street, rather than one at a time. Photos of every joint help us quote for the whole job.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.
Why us?
- Work to your specification and the manufacturer’s guidance
- Fully insured
- Our applicators hold CSCS cards
- One number for every site we cover
See how commercial sealant jobs are priced and our accreditations.
When something else is needed
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:
- Construction that lacks the fire resistance the seal relies on
- Fire doors, dampers or other fire safety equipment
- Designing or specifying fire stopping, which sits with the designer or fire engineer
If you are not sure, just ring 01277 525 020 or email us and we will give you a straight answer before you book.
Where we work in Fenn Street
- Service gaps in risers
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Cable penetrations