Fire stopping in Waltham
Fire-rated and intumescent sealing of service penetrations and linear gaps across Waltham, by CSCS-carded applicators. CHAS accredited and fully insured.
- Builders’ foam or ordinary silicone in compartment walls
- Service penetrations left open after M&E works
- Damaged fire seals in risers and voids
Need fire stopping in Waltham?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Maintenance after handover
To get the most from the new sealant:
- Brief every trade that openings they make must be sealed
- Settle who seals which penetrations at the start of a project
- Treat an open penetration as a priority repair
- Leave fire sealant to cure fully before covering it
Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original unless the designer specifies otherwise.
Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts, and the work runs in step with the M&E.
Fire stopping in Waltham
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. Those on your schedule are closed with the specified product. If you are dealing with openings found when ceilings come down for a refit and unsealed openings around new pipes and cables, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Waltham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
For a smaller site near Waltham, we plan to do all the penetrations in one go, with the specification and photographs sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Waltham (CT4)
- Region
- Kent
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Site staff or a sealant specialist?
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Also in Waltham
What we’re called out for in Waltham
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position and has to be removed.
Look out for the following:
- Unsealed penetrations discovered above suspended ceilings
- Old intumescent sealant that has split away
- Seals that don’t match their tested detail
- Builders’ foam or ordinary silicone in compartment walls
For a building such as Church of St Bartholomew, new heating or data runs are the usual reason penetrations need sealing.
What your quote should include
- What site paperwork they can supply
- How the existing material will be dealt with
- Their public liability cover
- Will CSCS-carded applicators be on site?
Your questions answered
Do you take on work at healthcare sites like Kent and Canterbury Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Waltham too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Will you quote for a small job?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Do the same rules apply to fire stopping in Scotland?
Our work covers Greater London, the South East and every Scottish council area. In Scotland, clause 2.1.14 of the non-domestic Technical Handbook says service penetrations should keep at least the fire resistance of the wall or floor, using products tested for their end use.
Does the weather affect the work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
How long does a typical visit take?
That varies with the scale of the job, though a typical visit typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we will set out a timescale with the quote.
Will you sign off the seals for us?
No. Sign-off belongs to the designer or building control, not the installer. We’ll confirm the product and detail installed, and you can tell us what other records you need at quote stage.
Where services cross fire walls in Waltham
Central London is about 52 miles from Waltham. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. Fire stopping of openings and penetrations in England falls under Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
On a hospital site such as Kent and Canterbury Hospital, which lies north-east of Waltham, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.
Waltham is about 6 miles south-west of Canterbury, in Kent. If you are looking for fire stopping in Waltham, we can help. 931 places across Kent fall within our area, including Waltham. Our London page has more on work in that area (52 miles or so).
We cover the CT4 postcode districts for service penetrations. Among the streets we cover are Church Lane, Richdore Road and Kake Street, and sites on any of them can send details for a fixed quote. Close to Waltham, our area also takes in Stelling Minnis (2 miles east), Bossingham (2 miles east), Stowting Common (4 miles south), Stowting (4 miles south) and Rhodes Minnis (4 miles south-east). Bigger towns within reach include Ashford (8 miles south-west), Canterbury (6 miles north-east), Dover (13 miles east), Folkestone (10 miles south-east), Whitstable (11 miles north) and Faversham (10 miles north-west).
What’s near Waltham
Locally, jobs take us to sites close to Compasses Inn. For rail, the closest station is Chilham station, about 3.7 miles north-west of the centre. A little further out are Chilham Castle (4.1 miles north-west) and Kent and Canterbury Hospital (5.5 miles north-east).
What we can’t put right
Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be one of these:
- Large openings beyond what any sealant detail covers
- Walls or floors that aren’t fire-resisting to begin with
- Signing off or certifying a building’s fire stopping
If you are not sure, just phone 01277 525 020 or use the quote form and we will give you a straight answer before you book.
Surfaces we seal
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
Diagnose, treat, sign off
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. For work around Waltham, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- We apply the specified sealant to the depth and around the services as the detail shows.
- If an opening needs something other than sealant, we tell you instead of improvising.
Before we start on site
- Tell staff and tenants when we will be in
- Make sure the joints can be reached
- Explain the parking and delivery arrangements
Ask for a quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to ring 01277 525 020 or use the quote form.
Read more
Surface by surface
Risers and ceiling voids
Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance along with any permits your site needs.
Drylining partitions
Plasterboard partitions are tested as a specific construction. The sealant detail has to be tested in that wall type, with the stated board layers first.