Letchworth fire stopping
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Letchworth and the surrounding area. Send photographs or drawings for a fixed quote.
- Non-fire-rated filler around services
- Penetration schedules that need working through
- Fire stopping installed outside its tested range
Fire stopping near Letchworth
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How the job changes by surface
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail, and we tell you if the bundle exceeds what sealant covers.
Linear joints
Head-of-wall joints often have to absorb slab deflection. We use the product and backing the detail names for that movement.
Fire stopping in Letchworth, done properly
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. We close the openings listed on your schedule, using the specified sealant and detail. Site teams most often ask us about openings found when ceilings come down for a refit and snag lists that include open service penetrations, across cable penetrations, pipe penetrations and joints between fire-resisting walls and floors. Facilities teams, main contractors and managing agents in Letchworth tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
For a facilities manager in Letchworth, fire-rated sealing tends to follow other work: a new data cabinet, a heating upgrade, a kitchen refit. A check after services work is sensible; tell us what the specification says and we will install to it.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, speak to us on 01277 525 020 or email a schedule or drawings and we will arrange a return visit.
- Where
- Letchworth (SG6)
- Region
- Hertfordshire
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Penetration seals near Letchworth
Letchworth lies roughly 34 miles out from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. Letchworth has two care or nursing homes no more than 2 miles away. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.
Large healthcare estates like Pinehill Hospital (to the south-west of Letchworth) change their services often, so penetration seals are worth checking after M&E work. For a hotel such as The Broadway Hotel, which lies west of Letchworth, penetration seals are worth checking after any refit or services upgrade.
Letchworth is about 5 miles north of Stevenage, in Hertfordshire. If you are looking for fire stopping in Letchworth, we can help, as we do across Hertfordshire. Across Hertfordshire, 371 places are covered, including Letchworth. For work in that direction, see our London page (34 miles or so).
Postcode districts covered here: SG6. For a building on Station Road, Willian Church Road and Rowland Way or nearby, send details and we’ll quote for service penetrations. Being close to the A505 and B656, Letchworth is straightforward for us to reach. Close to Letchworth, our area also takes in Letchworth Garden City (1 mile west), Norton (1 mile north-east), Willian (1 mile south), Walsworth (2 miles south-west) and Poets Estate (2 miles south-west). Bigger towns within reach include Stevenage (5 miles south), Welwyn Garden City (12 miles south), Harpenden (12 miles south-west), Hitchin (3 miles south-west), Hatfield (15 miles south) and Hertford (14 miles south-east).
Local landmarks in Letchworth
Locally, jobs take us to sites close to Norton School, The Highfield School and Three Magnets pub, among other places. There’s a railway station in Letchworth itself: Letchworth Garden City station. A little further out are Fairfield Hospital (1.9 miles north-west) and First Garden City Heritage Museum (less than half a mile south). Green spaces nearby include Purwell Ninesprings.
Common problems we fix in Letchworth
Plenty of openings were simply never closed, often hidden above suspended ceilings or behind boxing. Inspections, refurbishments and ceiling access usually bring them to light.
Things that usually lead to an enquiry:
- Expanding foam used as fire stopping
- Hidden openings found during inspections
- Unsealed openings around new pipes and cables
- Open linear gaps along the top of fire-resisting walls
Shop fits on retail sites such as Letchworth Gateway Retail Park (0.7 miles east of Letchworth) can bring new services through fire-resisting walls between units, to be sealed with the specified product.
What your quote should include
- Can the work be phased to keep areas open?
- The terms of the workmanship guarantee
- Whether their applicators hold CSCS cards
- How the existing material will be dealt with
Your questions answered
Can work in a care setting near Letchworth go ahead while residents are there?
Yes, with the manager deciding the order and timing of rooms. We follow the home’s own procedures throughout.
Could you schedule work at a campus like North Hertfordshire College - Hitchin Campus for the vacation?
Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Can weather delay the job?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
Which standards are fire seals tested to?
Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under BS EN 13501-2, where E is integrity, I is insulation and the number is minutes, as in EI 60. That rating only holds when the product is installed to its tested detail.
What do you charge?
It depends on the job: quantities, access, the product and any phasing. Call for a quote.
Are you members of a third-party fire-stopping installer scheme?
No, and we’d rather be clear about that. Some clients require third-party installer schemes even though the law doesn’t. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.
After the work
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Agree the fire-stopping specification before services go in
- Brief every trade that openings they make must be sealed
- Keep product data and details in the fire safety file
- Look above ceilings when tiles are lifted for other jobs
Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail using the same product.
Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.
Towns and villages near Letchworth
Also in Letchworth
Quoting for work in Letchworth
What shapes the price:
- Whether the work must be split into stages
- The site’s rules and procedures
- Whether old sealant has to be cut out first
- Which sealant the job calls for
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What to include in your enquiry
The more we know, the firmer the quote. When you get in touch, include:
- Drawings or a marked-up plan, if available
- Asbestos survey details if the building is older
- Your programme or deadline
- Clear photos of the problem areas
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Why deal with it now?
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. In a town such as Letchworth, a lot of buildings are older and have been altered over time, and joints where old meets new tend to fail first. Resealing them early protects the building behind.
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.
Why clients in Letchworth choose us
- 12-month guarantee on workmanship
- One number for every site we cover
- Joints cleaned back to sound surfaces
- Constructionline member
Diagnose, treat, sign off
We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. Most work in Letchworth is one building at a time: a school, a unit, an office or a block. We start with your photographs, drawings or a site visit, then send a fixed 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.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
Before we start on site
- Share your working hours and any access restrictions
- Tell staff and tenants when we will be in
- Let us know about inductions and permits
Request a quote
To get a fixed quote, ring 01277 525 020 or email a schedule or drawings. You can also send details through our quote form.