Fire Stopping in Northbrook
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Northbrook. Send details for a fixed quote.
- Penetration schedules that need working through
- Service penetrations left open after M&E works
- Fire seals cut back for extra cables and never reinstated
Fire stopping for businesses in Northbrook
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our fire stopping in Northbrook
Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. The enquiries we see most involve service penetrations left open after M&E works and fire stopping installed outside its tested range, on joints between fire-resisting walls and floors, service gaps in risers and pipe penetrations. A single leaking joint is often how a building in Northbrook first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Barn and farm-building conversions near places like Northbrook often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Location
- Northbrook (SO21)
- Region
- Hampshire
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Penetration seals near Northbrook
For England, the fire stopping of penetrations is dealt with in Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Northbrook lies roughly 56 miles out from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
Holiday works at schools like Micheldever CofE Primary School often leave service openings to seal before pupils return. For a building such as Church of St Mary, new heating or data runs are the usual reason penetrations need sealing.
Northbrook is about 7 miles north of Winchester, in Hampshire. Any commercial site in Northbrook is covered. Our Hampshire coverage takes in 723 places. Southampton is covered too, some 17 miles away.
Work on service penetrations is covered throughout SO21, for business premises of every kind. Just outside Northbrook, we also work in Micheldever (1 mile south-east), Stoke Charity (1 mile west), Hunton (2 miles west), Micheldever Station (2 miles north) and East Stratton (2 miles east). Nearby towns on our patch include Basingstoke (11 miles north-east), Winchester (7 miles south), Eastleigh (13 miles south), Andover (10 miles north-west), Chandler's Ford (13 miles south-west) and Alton (13 miles east).
Near you in Northbrook
In Northbrook, that means premises near Half Moon and Spread Eagle pub and the streets around them. Northbrook’s nearest station is Micheldever station, roughly 2.1 miles north.
What we can’t put right
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Fire risk assessments, a job for a competent assessor
- Writing the fire-stopping specification
- Gaps in walls that were never built as compartment walls
If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think.
Joints and surfaces we work on
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Service gaps in risers
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
Work for main contractors and building owners
Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Questions we’re asked in Northbrook
Can you produce the fire-stopping design for a job in Northbrook?
No, that sits with the designer, fire engineer or building control. We install what’s specified, to the product’s tested detail.
Is Northbrook too small for you to travel to?
No. Places such as Northbrook are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we will price the work to it, flagging anything that needs clarifying.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards, which many sites require.
Our process
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, and the work typically takes a single visit for a short list of penetrations, or a phased programme for a whole building. For a building around Northbrook, 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.
- 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 so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- For older buildings, check the asbestos register before work
- Have the specification and drawings to hand
- Point out parking and an unloading spot
Request a quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call 01277 525 020 or send details through our quote form.
Read more
What happens if it’s left?
Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. Older rural buildings around Northbrook move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Why appoint us
- Sealing commercial buildings since 2005
- CHAS accredited contractor
- 12 months’ guarantee on every job
- Our applicators hold CSCS cards
Read how commercial sealant jobs are priced and our accreditations and insurance.
How the quote is worked out
There’s no standard rate for sealant work, because every site is different. What we look at:
- Any access equipment needed
- Distance, for remote addresses
- Quantities, in metres or numbers
- The size and state of each joint
The price depends on the quantity of joints, what has to come out first and the access. Call for a fixed quote once you have the details.
What to include in your enquiry
Diagnosis starts before we arrive. Let us know:
- Approximate linear metres or a joint schedule
- When you need the work done
- Access details, including height
- Photos of the joints, close up and from further back
For a fixed quote, call the office on 01277 525 020 or email the details over with the site address and an outline of the work. You can also send details through our quote form.