Fire stopping in Kelvedon Hatch
Fire-rated and intumescent sealing of service penetrations and linear gaps across Kelvedon Hatch, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Unsealed penetrations discovered above suspended ceilings
- Unsealed joints where partitions meet the slab
- Expanding foam used as fire stopping
Fire stopping across Kelvedon Hatch
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our fire stopping in Kelvedon Hatch
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. Where there isn’t one, the designer or fire engineer needs to set one first. We work on pipe penetrations, joints between fire-resisting walls and floors and service gaps in risers, and what we are called in for most is fire stopping installed outside its tested range and expanding foam used as fire stopping. Searching for sealant specialists in Kelvedon Hatch? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Smaller places such as Kelvedon Hatch 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.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Place
- Kelvedon Hatch (CM15, CM14)
- Region
- Essex
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
For managing agents and facilities managers
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Also near Kelvedon Hatch
Also in Kelvedon Hatch
Fire stopping in Kelvedon Hatch: the local picture
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. 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. What we install is set by the specification, and it goes in to the tested detail. Kelvedon Hatch is about 20 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.
Holiday works at schools like Kelvedon Hatch Community Primary School often leave service openings to seal before pupils return. On estates like Hallsford Bridge Industrial Estate (2.1 miles north of Kelvedon Hatch), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.
Kelvedon Hatch is about 3 miles north-west of Brentwood, in Essex. Across the CM15 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 644 places across Essex fall within our area, Kelvedon Hatch among them. London is covered too, some 20 miles away.
Work on service penetrations is covered throughout CM15 and CM14, whatever the building. We cover commercial and managed buildings on Church Road, Swan Lane and The Finchingfields. Close to Kelvedon Hatch, our area also takes in Doddinghurst Common (1 mile south), Navestock Side (1 mile south-west), Bentley (1 mile south), Hook End (1 mile north-east) and Stondon Massey (1 mile north-east). Nearby towns on our patch include Chelmsford (10 miles north-east), Basildon (10 miles south-east), Harlow (10 miles north-west), Brentwood (3 miles south-east), Billericay (7 miles east) and Rayleigh (15 miles east).
Landmarks near Kelvedon Hatch
Recent enquiries here include premises near The Shepherd Public House, among other places. The nearest railway station is Shenfield station, roughly 3.4 miles south-east of the centre. A little further out are Brentwood Community Hospital (3.3 miles south-east). Not far away are Thorndon Park.
Signs you need fire stopping in Kelvedon Hatch
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls.
Site and facilities staff are often the first to spot these:
- Expanding foam used as fire stopping
- Service penetrations left open after M&E works
- Seals disturbed by maintenance and left open
- Improvised or mixed-product fire seals
For a building such as New Church of St Nicholas, new heating or data runs are the usual reason penetrations need sealing.
What your quote should include
- Do they follow the manufacturer’s priming guidance?
- Whether old or failed sealant will be cut out, not overlaid
- Proof of insurance
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Diagnose, treat, sign off
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes a single visit for a short list of penetrations, or a phased programme for a whole building, and our waste is bagged and taken away as we go. Jobs in and around smaller places like Kelvedon Hatch are normally planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Before we start on site
- Agree which areas must stay open
- Let building users know which areas are affected
- Have the specification and drawings to hand
Request a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.
Related advice
How the job changes by surface
Linear joints
Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in, along the full length of the run.
Metal pipes
Sealant details often cover copper and steel pipework. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail.
Doing it in-house
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Kelvedon Hatch: questions and answers
Can you work on a hospital site such as Brentwood Community Hospital?
Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.
How does the move away from BS 476 affect penetration seals in Kelvedon Hatch?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Is any job too small?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
Do you take on multi-site work?
Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.
How long does a job like this take?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it.
Which sealant will you use?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Maintenance after handover
Regular inspection catches problems early. Specifically:
- Check risers and ceiling voids after each round of works
- Settle who seals which penetrations at the start of a project
- Get seals inspected before ceilings and boxing close
- Foam or ordinary sealant is never a fire-seal repair
New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there instead of being left for someone else.