Fire Stopping in Oxhey
Fire-rated and intumescent sealing of service penetrations and linear gaps in Oxhey. CHAS accredited and fully insured, with a 12-month guarantee.
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed penetrations discovered above suspended ceilings
- Service penetrations left open after M&E works
Fire stopping across Oxhey
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our fire stopping in Oxhey
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. Most enquiries involve fire-stopping items raised at inspection or handover and open linear gaps along the top of fire-resisting walls, on linear gaps at wall heads, pipe penetrations and cable penetrations. Whoever orders the work in Oxhey, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
Converted and extended buildings around places like Oxhey can mix old and new construction, so it’s worth confirming the wall or floor type before choosing the seal. The right product depends on the wall or floor and the services passing through, and we’ll tell you if the detail calls for something other than sealant.
Work we carry out in Hertfordshire comes with a 12-month guarantee. Should something we installed fail, phone 01277 525 020 or send details through our quote form and we’ll come back to it.
- Place
- Oxhey (WD23, WD19, WD17)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Common questions from Oxhey clients
What does the BS 476 change mean for fire-rated sealant in Oxhey?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Do you work on fire-rated sealing in hotels in Oxhey?
Yes. We install fire-rated and intumescent sealant where it is specified. Each seal follows the tested detail, and rooms are done in turn.
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.
What do you charge?
We don’t publish prices, because every site is different. Send photographs or drawings and we will price it at a fixed figure.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.
Do you need to see the site first?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Diagnose, treat, sign off
Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Work in places the size of Oxhey is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Preparing the site
- Tell us which areas need to stay in use
- Tell us your opening times and when work is allowed
- Have the specification and drawings to hand
Ask for a quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or ring 01277 525 020 or send details through our quote form if you’d rather talk the job through.
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Nearby places to Oxhey
Other services in Oxhey
Cost factors for service penetrations
What shapes the price:
- Whether the work must be split into stages
- Distance, for remote addresses
- Induction, permit and paperwork requirements
- Joint width, depth and condition
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
Sending details for a quote
The more we know, the firmer the quote. When you get in touch, include:
- Where the site is, with the postcode
- Approximate linear metres or a joint schedule
- Photos of the joints, close up and from further back
- Asbestos survey details if the building is older
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
What the job involves on each surface
Small ducts
Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Bigger ducts and fire-resisting ductwork are normally handled with other products, and we will say if that applies.
Plastic pipes
Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we won’t substitute it for a specified collar.
Owners, agents and contractors
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Aftercare for building managers
After handover, a little attention goes a long way:
- Look above ceilings when tiles are lifted for other jobs
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Keep general-purpose fillers away from compartment walls
- Get seals inspected before ceilings and boxing close
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.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there instead of being left for someone else.
What sealant work can’t fix
Being straight saves everyone time. New sealant won’t cure:
- Openings that need collars, wraps, batts or boards rather than sealant
- Deciding what a wall or floor needs, which belongs to the designer
- Issuing fire ratings or certificates for seals
If you’re not sure, just call the office on 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.
Surfaces we seal
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Linear gaps at wall heads
Compartments and services around Oxhey
Central London is about 16 miles from Oxhey. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
Workshops and IT rooms at colleges like West Herts College, 1.6 miles north-west of Oxhey, are re-serviced often, leaving penetrations to seal. Shop fits on retail sites such as Colne Valley Retail Park, 0.5 miles to the north-west of Oxhey, can bring new services through fire-resisting walls between units, to be sealed with the specified product. In a building such as Church of St James, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Oxhey is about 1 mile west of Bushey, in Hertfordshire. Any commercial site in Oxhey is covered, for single jobs and planned programmes alike. 371 places across Hertfordshire fall within our area, including Oxhey. There’s a separate page for London, roughly 16 miles from Oxhey.
Work on service penetrations is covered throughout WD23, WD19 and WD17, whatever the building. Among the streets we cover are Cow Lane, Vale Road and Park Road, and sites on any of them can send details for a fixed quote. With the A4008 nearby, Oxhey is straightforward for us to reach. We also cover Watford Heath (1 mile south-west), Bushey (1 mile east), Carpenders Park (1 mile south), Watford (2 miles north-west) and Bushey Heath (2 miles south-east). Further afield, our area takes in Hemel Hempstead (8 miles north-west), St Albans (8 miles north), Welwyn Garden City (13 miles north-east), Harpenden (12 miles north), Cheshunt (15 miles east) and Hatfield (10 miles north-east).
What’s near Oxhey
Locally, jobs take us to sites close to St. Hilda's School, Oxhey Park and The Bushey Academy. There’s a railway station in Oxhey itself: Bushey station. Well-known places in the area include Hertfordshire Fire Brigade Museum (0.7 miles north-west) and Harlequin Centre (1 mile north-west). For a walk, there’s Harrow Weald Common.