Fire stopping in Burn's Green
Fire stopping in Burn's Green, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Head-of-wall gaps with no fire seal
- Penetration schedules that need working through
- Openings left by services added after handover
Fire stopping across Burn's Green
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
General trades versus a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
About our fire stopping in Burn's Green
We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control. What we bring is careful installation of the specified sealant, to the maker’s guidance on sites in Burn's Green. We work on small duct penetrations where the tested detail allows, pipe penetrations and service gaps in risers, and the usual reasons a site gets in touch are improvised or mixed-product fire seals and builders’ foam or ordinary silicone in compartment walls. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Burn's Green is the same: the right product in a properly prepared joint.
A job near Burn's Green is usually planned around one visit, so send the specification and photographs first. Design and sign-off belong to the designer or building control; we install what’s specified.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Burn's Green (SG2)
- Wider area
- Hertfordshire
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Why act early in Burn's Green
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. Openings are visible, access is open and nothing has to be taken down and each detail can be checked as we go. One visit to deal with every failing joint makes more sense than several trips to a place like Burn's Green, rather than one at a time. Send photographs of each area and we’ll quote for the lot.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.
Why us?
- Over 20 years of commercial sealing
- Constructionline member for supplier checks
- Our applicators hold CSCS cards
- CHAS accredited contractor
See our cost guide or our accreditations.
Towns and villages near Burn's Green
Other services in Burn's Green
How the job changes by surface
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.
Small ducts
We seal around ducts only within what the tested detail covers. Dampers and ductwork systems themselves are outside our work.
FAQs: Burn's Green
Is a hospital such as Lister Hospital somewhere you can work?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Will you take on work at estates like Astonbury Farm & Business Park, close to Burn's Green?
Yes. We cover Burn's Green and the area around it, including industrial estates, business parks and retail parks such as Astonbury Farm & Business Park. A few photos and the unit address let us price the work.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Can you quote from photos?
Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit.
Do you offer coloured sealant?
It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
What do you charge?
That depends on the job: quantities, access, the product and any phasing. Call for a quote.
How do you choose the sealant?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Our process
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. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Burn's Green can be grouped with others nearby. You will have a fixed quote before work starts.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Getting the site ready
- Confirm the product named in the specification
- Flag any permit to work we will need
- Tell us which areas need to stay in use
Getting a fixed quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email drawings and photos.
Read more
What we can’t put right
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is one of these:
- Large openings beyond what any sealant detail covers
- Deciding what a wall or floor needs, which belongs to the designer
- Signing off or certifying a building’s fire stopping
If you are not sure, just give us a call on 01277 525 020 or email us and we’ll give you a straight answer before you book.
Surfaces we seal
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Cable penetrations
- Pipe penetrations
Where services cross fire walls in Burn's Green
Approved Document B is the English guidance that covers fire stopping around 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. Central London is about 27 miles from Burn's Green. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls; the gaps need the specified seal.
For a school such as Benington Church of England Primary School, penetration sealing fits best at the end of the summer works. For a hospital such as Lister Hospital (5.4 miles north-west of Burn's Green), penetration sealing is normally phased ward by ward, with infection-control rules agreed first. On a site such as Astonbury Farm & Business Park, 2.1 miles to the west of Burn's Green, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.
Burn's Green is about 4 miles south-east of Stevenage, in Hertfordshire. Anywhere in SG2, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Burn's Green is one of 371 places in Hertfordshire on our list. Our London page has more on work in that area (27 miles or so).
Business premises anywhere in SG2 are within our area. Just outside Burn's Green, we also work in Whempstead (1 mile south-east), Dane End (2 miles south-east), Haultwick (2 miles east), Sacombe (2 miles south-east) and Sacombe Green (3 miles south-east). Nearby towns on our patch include Stevenage (4 miles north-west), St Albans (14 miles south-west), Bishop's Stortford (11 miles east), Welwyn Garden City (7 miles south-west), Harpenden (12 miles south-west) and Hitchin (9 miles north-west).
Local landmarks in Burn's Green
Recent enquiries here include premises near The Bell Public House. For rail, the closest station is Watton-At-Stone station, roughly 2.3 miles south. Other landmarks nearby include Datchworth Museum (3.7 miles south-west) and Lister Hospital (5.4 miles north-west). Not far away are Astonbury Wood.
Quoting for work in Burn's Green
Quotes vary with the job. Expect it to depend on:
- Induction, permit and paperwork requirements
- Backing rod, priming and other preparation
- Access and working height
- Specialist products, such as fire-rated or hygienic sealants
What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a quote when you’re ready.
Details that help us quote
A good diagnosis starts with the right details. Tell us:
- Where the site is, with the postcode
- Whether an asbestos survey exists
- How the joints are reached, and at what height
- What the building is and how it’s used
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or send details through our quote form.