Portsmouth Point fire stopping
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Portsmouth Point. Send details for a fixed quote.
- Non-fire-rated filler around services
- Damaged fire seals in risers and voids
- Old intumescent sealant that has split away
Need fire stopping in Portsmouth Point?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When to bring in a specialist
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.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
About our fire stopping in Portsmouth Point
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We don’t hold a third-party fire-stopping installer certificate. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. If you have penetration schedules that need working through and unsealed joints where partitions meet the slab, we can put it right. Most enquiries from Portsmouth Point start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Around smaller places like Portsmouth Point, 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. We match the product to the substrate and service, and say so if a collar, wrap or batt is the specified item.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Portsmouth Point (PO1, PO5, PO12)
- Wider area
- Portsmouth
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What happens if it’s left?
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why us?
- Work to your specification and the manufacturer’s guidance
- Constructionline member for supplier checks
- Work carried out by CSCS-carded applicators
- Fully insured, including public liability cover
Read our cost guide or our accreditations.
Service penetrations in Portsmouth Point buildings
Fire stopping of openings and penetrations in England falls under 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. Either way, we install the specified product to its tested detail. At about 66 miles from central London, Portsmouth Point is within reach of the capital. 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.
On estates like Cranbourne Industrial Estate (1.1 miles west of Portsmouth Point), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. Campus buildings at universities such as University of Portsmouth - North Zone, 0.5 miles to the north-east of Portsmouth Point, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Colleges such as St Vincent College (to the north-west of Portsmouth Point) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.
Portsmouth Point is about 2 miles west of Southsea, in Portsmouth. Anywhere in PO1, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 19 places in Portsmouth, large and small.
Postcode districts covered here: PO1, PO5 and PO12 for service penetrations. If your site is on Park Road, Nobbs Lane and Bath Square or close by, send details and we’ll quote for service penetrations. Close to Portsmouth Point, our area also takes in Portsea (1 mile north), Clayhall (1 mile south-west), Haslar (1 mile south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). A short drive away, we cover Hilsea (3 miles north-east), Wymering (4 miles north), Paulsgrove (4 miles north), Cosham (4 miles north-east), Drayton (5 miles north-east) and Farlington (5 miles north-east).
Near you in Portsmouth Point
Around Portsmouth Point, our work takes us to commercial buildings near Charter Academy, Portsmouth Grammar School and Bridge Tavern, among other places. There’s a railway station in Portsmouth Point itself: Portsmouth Harbour station. Well-known places in the area include Southsea Castle (1.2 miles south-east) and Portsmouth Museum And Art Gallery (under half a mile east). Not far away are Portsdown Hill and Milton Locks.
Diagnose, treat, sign off
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. For a site in Portsmouth Point, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Agree which areas must stay open
- Tell us your opening times and when work is allowed
- Have the specification and drawings to hand
Ask for a quote
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Advice
Honest limits
Honesty saves time and money. New sealant won’t cure:
- Fire risk assessments, a job for a competent assessor
- Walls or floors that aren’t fire-resisting to begin with
- Signing off or certifying a building’s fire stopping
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Cable penetrations
Looking after the joints
Problems stay small when the joints are checked regularly. In particular:
- Keep product data and details in the fire safety file
- Include service cupboards in routine inspections
- Flag new cables with no seal around them
- Get seals inspected before ceilings and boxing close
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and the work runs in step with the M&E.
Places near Portsmouth Point
Also in Portsmouth Point
What sets the cost
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Which sealant the job calls for
- How much there is to seal
- Any access equipment needed
- Working within restricted access windows
A quote for service penetrations depends on how many there are, their condition and the access, plus any specification you are working to. Call for a quote.
What to include in your enquiry
For an accurate fixed quote, we need a clear picture of the site. Send us:
- Anything awkward about access or site hours
- Approximate linear metres or a joint schedule
- The type of building and who uses it
- Your programme or deadline
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to call 01277 525 020 or email drawings and photos.
FAQs: Portsmouth Point
Can you seal penetrations in a hotel in Portsmouth Point after a refit?
Yes, where the specification calls for fire-rated sealant. Each seal follows the tested detail, and rooms are done in turn.
Do you cover business parks and estates near Portsmouth Point, such as Cranbourne Industrial Estate?
Yes. Our area takes in Portsmouth Point and its surroundings, with estates and business parks such as Cranbourne Industrial Estate included. Photos and a short description are enough for a first look.
Do you take on multi-site work?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
Does weather matter for sealant work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Is colour matching possible?
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 will confirm the colours available for the specified product.