Fire stopping in Inner Avenue
Fire-rated and intumescent sealing of service penetrations and linear gaps across Inner Avenue, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Builders’ foam or ordinary silicone in compartment walls
- Head-of-wall gaps with no fire seal
- Fire stopping installed outside its tested range
Fire stopping for Inner Avenue sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our fire stopping in Inner Avenue
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings and the specified product data. Tell us what records you need and we’ll confirm with the quote. Most enquiries involve service penetrations left open after M&E works and expanding foam used as fire stopping, across small duct penetrations where the tested detail allows, service gaps in risers and joints between fire-resisting walls and floors. Looking for mastic applicators who cover Inner Avenue? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Around smaller places like Inner Avenue, many commercial buildings are conversions or extensions of older ones, so the wall or floor a service passes through isn’t always what the drawings assume. 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.
We stand by our work: 12 months, guaranteed. That covers our preparation and application.
- Place
- Inner Avenue (SO14, SO15, SO17)
- Region
- Southampton
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Doing it in-house
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.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
On site: what to expect
Before we leave any area, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. Work in places the size of Inner Avenue is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Preparing the site
- Flag any permit to work we will need
- Share your working hours and any access restrictions
- Send asbestos survey details if the building is pre-2000
Getting a fixed quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, give us a call on 01277 525 020 or send details through our quote form.
Advice
Work for main contractors and building owners
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
What we’re called out for in Inner Avenue
Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Deflection and building movement can open these gaps. Linear joint details set a width range and movement capability, and the seal has to sit within them.
Typical triggers for a call:
- Unsealed openings around new pipes and cables
- Unsealed penetrations discovered above suspended ceilings
- Fire stopping installed outside its tested range
- Unsealed joints where partitions meet the slab
Workshops and IT rooms at colleges like Southampton City College (to the south of Inner Avenue) are re-serviced often, leaving penetrations to seal.
Questions to ask before you book
- Are they CHAS accredited or on Constructionline?
- What the guarantee covers, and for how long
- Whether old or failed sealant will be cut out, not overlaid
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Why it’s worth doing now in Inner Avenue
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme which is why earlier is better. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why clients in Inner Avenue choose us
- A Constructionline member, so easy to vet
- 12 months’ guarantee on every job
- Health and safety: CHAS accredited
- Old sealant cut out, never sealed over
Take a look at how commercial sealant jobs are priced or how we’re accredited.
Fire-rated sealing for Inner Avenue buildings
There are three care or nursing homes within about 2 miles of Inner Avenue. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. We install fire-rated sealant to the tested detail where it is specified. Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail.
In a retail centre such as Marlands Shopping Centre, which lies south of Inner Avenue, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. At a healthcare site like Royal South Hants Hospital, under half a mile to the south of Inner Avenue, new services through compartment walls are a constant, and each needs the specified seal.
Inner Avenue is about 1 mile west of Southampton, in Southampton. Across the SO14 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across Southampton, 30 places are covered, Inner Avenue among them.
We cover the SO14, SO15 and SO17 postcode districts for service penetrations. Buildings on Alma Road, Rose Road and Lawn Road are within our area. Close to Inner Avenue, our area also takes in Southampton (1 mile east), Portswood (1 mile north-east), St Denys (1 mile north-east), Bitterne Manor (1 mile east) and St Mary's (1 mile south). Nearby towns on our patch include Thornhill (3 miles east), Weston (3 miles south-east) and Redbridge (3 miles west).
Local landmarks in Inner Avenue
In Inner Avenue, that means premises near St Anne's Catholic School, St Mary's Independent School and Rockstone Place Park and the streets around them. For rail, the closest station is St Denys station, about 0.6 miles north-east of the centre. Nearby you will also find Royal South Hants Hospital (under half a mile south-east) and Marlands Shopping Centre (0.8 miles south). Not far away are Netley Common.
Also near Inner Avenue
What else we do in Inner Avenue
FAQs: Inner Avenue
Is Inner Avenue off your patch?
Not at all. Inner Avenue is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
Do you seal service penetrations in hotels around Inner Avenue?
Yes, where the specification calls for fire-rated sealant. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we’ll tell you if the detail calls for a collar, wrap or batt instead.
Can you quote from photographs?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
Is your workmanship covered by a guarantee?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
How long does a typical visit take?
It depends on the scope, though a typical visit normally takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we will set out a timescale with the quote.
When can the area be used after sealing?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Cost factors for service penetrations
Your fixed quote is built from the real scope. It allows for:
- Travel to remote or island sites
- Site requirements such as inductions and permits
- The total length or number of joints
- The size and state of each joint
The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site rules also count.
What we need to price the job
To price the job accurately, we need to understand the site. Useful things to include:
- The product your specification calls for
- Access details, including height
- Asbestos survey details if the building is older
- Your programme or deadline
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or use the quote form.