Fire Stopping in Felsted
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Felsted and the surrounding area. Send details for a fixed quote.
- Fire-rated sealant that has cracked or shrunk back
- Openings left by services added after handover
- Expanding foam used as fire stopping
Fire stopping for businesses in Felsted
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
What sealant work can’t fix
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Issuing fire ratings or certificates for seals
- Plastic pipes whose detail calls for a collar or wrap
- Gaps in walls that were never built as compartment walls
If in doubt, call the office on 01277 525 020 or email us and we’ll say what we think.
What we seal
- Cable penetrations
- Pipe penetrations
- Service gaps in risers
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
Fire stopping in Felsted
It helps to set out our role at the start. The designer, fire engineer or building control decides which fire stopping is required. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance. If you’re dealing with unsealed joints where partitions meet the slab and fire sealant pulled out of the opening, we can put it right. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Felsted is the same: the right product in a properly prepared joint.
For a smaller site near Felsted, we plan to do all the penetrations in one go, so send the specification and photographs first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Our workmanship is guaranteed for 12 months, in Felsted as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- Felsted (CM6)
- Region
- Essex
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Also near Felsted
Also in Felsted
Why it’s worth doing now in Felsted
A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product. Converted and older buildings near places like Felsted tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote when you are ready.
Why choose Mastic Doctor in Felsted
- Constructionline member
- Work carried out by CSCS-carded applicators
- One phone line for London, the South East and Scotland
- Joints cleaned back to sound surfaces
Take a look at how commercial sealant jobs are priced or how we’re accredited.
What we’re called out for in Felsted
Mixing products or improvising a detail breaks the link with the test evidence. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are what we find most often.
Site and facilities staff are often the first to spot these:
- Fire-stopping items raised at inspection or handover
- Head-of-wall gaps with no fire seal
- Fire stopping installed outside its tested range
- Non-fire-rated filler around services
Older community buildings such as Church of the Holy Cross that have been rewired or given new heating can have service gaps through walls worth checking against the specification.
What to look for in a quote
- How the joint faces will be prepared and primed
- Their public liability cover
- Is the sealant right for the movement and the substrate?
- How long is the guarantee, and what does it include?
Commercial clients in Felsted
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.
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.
Compartments and services around Felsted
In England, Approved Document B covers fire stopping of openings and penetrations. 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. We install whatever has been specified, to the product’s tested detail. Felsted lies roughly 34 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product.
At a healthcare site like Braintree Community Hospital, 4.6 miles to the east of Felsted, new services through compartment walls are a constant, and each needs the specified seal. On estates like Martels Industrial Estate, 2.5 miles west of Felsted, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.
Felsted is about 6 miles west of Braintree, in Essex. Any commercial site in Felsted is covered. We work across 644 places in Essex. There’s a separate page for London, roughly 34 miles from Felsted.
If you need fire stopping in CM6, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Station Road, Braintree Road and Chelmsford Road. Close to Felsted, our area also takes in Causeway End (1 mile south), Watch House Green (1 mile north-east), Little Dunmow (1 mile west), Bannister Green (1 mile east) and Brookstreet (1 mile west). Nearby towns on our patch include Chelmsford (9 miles south), Braintree (6 miles east), Harlow (15 miles south-west), Maldon (14 miles south-east), Witham (9 miles south-east) and Saffron Walden (14 miles north-west).
Local landmarks in Felsted
We work on buildings around The Chequers pub. Well-known places in the area include Little Easton Moat (4.9 miles north-west) and Braintree Community Hospital (4.6 miles east). The countryside around Felsted includes Phyllis Currie Nature Reserve.
Common questions from Felsted clients
Is a hospital such as Braintree Community Hospital somewhere you can work?
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 Martels Industrial Estate, near Felsted, within your area?
Yes. Our area takes in Felsted and its surroundings, with estates and business parks such as Martels Industrial Estate included. Photos and a short description are enough for a first look.
Which sealant will you use?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
How soon can the area be used again?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Will you sign off the seals for us?
No. Approval sits with the designer, principal designer or building control. We’ll confirm the product and detail installed.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
What will the job cost?
Each job is quoted on its own details. To get one, phone 01277 525 020 or use the quote form.
From enquiry to sign-off
Working in a building that stays open takes some planning. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. For a building around Felsted, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- The specification and schedule come first, so we know which details apply.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
What we need from you
- Let us know about inductions and permits
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
Ask for a quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or use the quote form.
Advice
How the job changes by surface
Plastic pipes
Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail, though larger ones typically call for a collar or wrap. We check the pipe material and diameter against the detail before we start.
Metal pipes
Metal pipes conduct heat, so their details often call for extra measures along the pipe, and the tested detail may ask for insulation beyond the wall. If the detail needs something beyond sealant, we tell you.