Fire stopping in Southampton
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Southampton and the surrounding area. Send photos or drawings for a fixed quote.
- Openings left by services added after handover
- Fire stopping installed outside its tested range
- Fire-stopping items raised at inspection or handover
Fire stopping for businesses in Southampton
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping in Southampton
On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, call 01277 525 020 or email a schedule or drawings with the schedule or marked-up drawings and the specified product data. Tell us what records you need and we’ll confirm with the quote. The enquiries we see most involve hidden openings found during inspections and head-of-wall gaps with no fire seal, across pipe penetrations, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows. Most enquiries from Southampton start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Places the size of Southampton usually have healthcare, education and commercial buildings divided into fire compartments. Where the services passing through call for fire-rated sealant, the manufacturer’s installation guidance is followed to the letter.
Our workmanship is guaranteed for 12 months, in Southampton as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Place
- Southampton (SO19, SO16, SO15, SO18)
- Wider area
- Southampton
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Walls or floors that aren’t fire-resisting to begin with
- Openings that need collars, wraps, batts or boards rather than sealant
- Fire risk assessments, a job for a competent assessor
Not sure which it is? You can ring 01277 525 020 or send details through our quote form and we will tell you honestly before you book.
Where we work in Southampton
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
From enquiry to sign-off
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, with the work itself usually taking a single visit for a short list of penetrations, or a phased programme for a whole building. Bigger buildings in Southampton are normally done in phases agreed with the site or facilities manager, so the building keeps working. Photos and drawings let us propose a sequence 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.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Getting the site ready
- Let us know about inductions and permits
- Send any specification or drawings in advance
- Share the asbestos register for older buildings
Quotes
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Related advice
Leave it or put it right?
Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed. If one joint has failed on your building in Southampton, others of the same age may be close behind. Dealing with them together saves repeat visits.
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.
Why choose Mastic Doctor in Southampton
- CSCS-carded applicators
- A fixed quote before work starts
- One contact handling all your sites
- CHAS accredited contractor
Read what affects the cost and our accreditations and insurance.
Towns and villages near Southampton
More services for Southampton
What affects the price in Southampton
Quotes vary with the job. It mainly depends on:
- Travel to remote or island sites
- Working within restricted access windows
- Whether old sealant has to be cut out first
- The site’s rules and procedures
We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.
Before you send an enquiry
The more we know, the firmer the quote. When you get in touch, include:
- The type of building and who uses it
- Whether an asbestos survey exists
- Clear photographs of the problem areas
- Any dates the work must fit around
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or send details through our quote form.
Questions about Southampton
Do you work on fire-rated sealing in hotels in Southampton?
Yes, where fire-rated sealant is the specified product. 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.
Do you work in occupied care homes around Southampton?
Yes, with the manager deciding the order and timing of rooms. We follow the home’s own procedures throughout.
Are you CHAS accredited?
Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
What do you charge?
There isn’t a price list, as every site differs. Send photos or drawings and we’ll price it at a fixed figure.
How long does a typical visit take?
The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.
Can the sealant be colour-matched?
That depends on the product. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Compartments and services around Southampton
The 2 miles around Southampton include five care or nursing homes. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. A good number of hotels sit less than 2 miles from Southampton. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.
For a unit at a centre such as Marlands Shopping Centre, 1 mile south-west of Southampton, penetration seals are worth checking after each shop fit. Wherever services are added at a hospital such as Royal South Hants Hospital, under half a mile to the south of Southampton, the compartment line has to be made good with the specified product.
Southampton is in England. Across the SO19 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 30 places in Southampton, from busy centres to rural villages.
Business premises anywhere in SO19, SO16, SO15 and SO18 are within our area. Buildings on London Road, Marshall Square and Grosvenor Square are within our area. Southampton sits on or close to the A27 and A33, which helps when planning parking and deliveries for the job. Close to Southampton, our area also takes in Inner Avenue (1 mile west), St Denys (1 mile north-east), Bitterne Manor (1 mile east), Portswood (1 mile north) and Northam (1 mile south-east).
Landmarks near Southampton
In Southampton, that means premises near Rockstone Place Park, The Hobbit pub and St Mary's Independent School. Southampton has its own railway station: St Denys station. Well-known places in the area include Marlands Shopping Centre (1 mile south-west) and R J Mitchell Museum (0.9 miles south-west). Open spaces near Southampton include Netley Common.
Building owners, agents and FMs in Southampton
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules.
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Do you need fire stopping in Southampton?
Plenty of openings were simply never closed. Inspections, refurbishments and ceiling access typically bring them to light.
Things that normally lead to an enquiry:
- Head-of-wall gaps with no fire seal
- Fire-stopping items raised at inspection or handover
- Openings found when ceilings come down for a refit
- Fire seals cut back for extra cables and never reinstated
Workshops and IT rooms at colleges like Southampton City College, 1.1 miles south of Southampton, are re-serviced often, leaving penetrations to seal.
Questions to ask before you book
- Whether primer will be used where the manufacturer specifies it
- How joint depth will be controlled
- Their public liability cover
- Which product they’ll use, and why it suits the joint