Fire-rated sealing and fire stopping in Hartley, Kent
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Hartley and the surrounding area. Send photos or drawings for a fixed quote.
- Head-of-wall gaps with no fire seal
- Penetration schedules that need working through
- Openings found when ceilings come down for a refit
Fire stopping near Hartley
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Hartley
Facilities managers in Hartley often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it, matching the product and detail it names. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on pipe penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors, and the usual reasons a site gets in touch are builders’ foam or ordinary silicone in compartment walls and fire sealant pulled out of the opening. Looking for mastic applicators who cover Hartley? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Smaller places such as Hartley still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.
- Place
- Hartley (TN17)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
When it isn’t the sealant
Honesty saves time and money. New sealant won’t cure:
- Approving the work on behalf of building control
- Construction that lacks the fire resistance the seal relies on
- Large openings beyond what any sealant detail covers
If in doubt, phone 01277 525 020 or email us and we will say what we think.
What we seal
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Linear gaps at wall heads
- Service gaps in risers
Signs you need fire stopping in Hartley
Plenty of openings were simply never closed because they sat out of sight above a ceiling or inside a riser. They come to light during inspections, refits or when another trade lifts a tile.
Typical triggers for a call:
- Openings found when ceilings come down for a refit
- Unsealed joints where partitions meet the slab
- Improvised or mixed-product fire seals
- Fire-stopping items raised at inspection or handover
In a hotel such as The George Hotel, 1.4 miles north-east of Hartley, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How the existing material will be dealt with
- Are they CHAS accredited or on Constructionline?
- Their public liability cover
Leave it or put it right?
A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail, and doing it once, properly, is cheaper. For buildings around smaller places like Hartley, 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. Renewing joints in good time avoids the problem.
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Why choose Mastic Doctor in Hartley
- Work to your specification and the manufacturer’s guidance
- Old sealant cut out, never sealed over
- A Constructionline member, so easy to vet
- Our applicators hold CSCS cards
Take a look at what affects the cost and our accreditations.
Fire stopping in Hartley: the local picture
Central London is about 39 miles from Hartley. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
For a building at a site such as Hartley Dyke Business Centre, less than half a mile to the north-east of Hartley, a check of penetration seals after each fit-out is good practice. Hospital estates such as Hawkhurst Community Hospital (to the south of Hartley) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.
Hartley is about 8 miles south-east of Paddock Wood, in Kent. We cover commercial sites throughout Hartley, for single jobs and planned programmes alike. Our Kent coverage takes in 931 places, from busy centres to rural villages. Our Brighton page has more on work in that area, about 33 miles away.
Anyone looking for fire stopping in TN17 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on Hartley Road, Campion Crescent and Hartley Court Gardens or close by, we can quote for service penetrations. Close to Hartley, our area also takes in Swattenden (1 mile east), Cranbrook (1 mile north-east), Baker's Cross (2 miles north-east), Gill's Green (2 miles south) and Beal's Green (2 miles south). A short drive away, we cover Maidstone (13 miles north), Royal Tunbridge Wells (11 miles west), Tonbridge (13 miles north-west), Kings Hill (14 miles north), Foley Park (14 miles north) and Paddock Wood (8 miles north-west).
Landmarks near Hartley
Around Hartley, our work takes us to commercial buildings near Crane Valley, among other places. Other landmarks nearby include Benenden Hospital (4.7 miles east) and Sissinghurst Castle (3.8 miles north-east).
Other services in Hartley
Maintenance after handover
Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:
- Ask the designer to confirm details early on refits
- Leave fire sealant to cure fully before covering it
- Have penetrations checked while they can still be seen
- Put resealing into every M&E and fit-out package
Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there, not months later.
How the quote is worked out
What shapes the price:
- The product specified
- The size and state of each joint
- Removal of failed or old sealant
- Travel to remote or island sites
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.
Details that help us quote
It doesn’t need to be a full survey. These details are enough to start:
- When you need the work done
- How the joints are reached, and at what height
- Rough lengths or quantities, or drawings if you have them
- Clear photos of the problem areas
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, call 01277 525 020 or send details through our quote form.
Your questions answered
Does your area include sites such as Hartley Dyke Business Centre, near Hartley?
Yes, sites like Hartley Dyke Business Centre are within our area, along with the rest of Hartley. Send details of the unit and the work through our quote form for a quick quote.
Is Hartley off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
What will the job cost?
There isn’t a price list, as every site differs. Send photos or drawings and we will price it at a fixed figure.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Are you members of a third-party fire-stopping installer scheme?
No. We are not members of a third-party fire-stopping installer scheme. Our credentials are CHAS accreditation, Constructionline membership and CSCS-carded applicators, and we are fully insured. If your contract requires third-party installer certification, we’re not the right fit for that package.
How a job runs
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Smaller jobs around Hartley can be grouped with others nearby. A fixed quote is given before anything starts.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Getting the site ready
- Explain the parking and delivery arrangements
- Share your working hours and any access restrictions
- Flag any permit to work we will need
Request a quote
A handful of photographs 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 email a schedule or drawings to discuss it first.