Fire stopping in Holbury
Commercial sealant work in Holbury for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Improvised or mixed-product fire seals
- Non-fire-rated filler around services
- Unsealed penetrations discovered above suspended ceilings
Fire stopping for businesses in Holbury
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
When to call us in Holbury
Some service penetrations were never sealed at all, often hidden above suspended ceilings or behind boxing. Inspections, refurbishments and ceiling access normally bring them to light.
These are often picked up first by site or facilities staff:
- Head-of-wall gaps with no fire seal
- Seals that don’t match their tested detail
- Non-fire-rated filler around services
- Penetration schedules that need working through
Office fit-outs on sites such as Glenmore Business Park, 1 mile to the north-west of Holbury, add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it.
What to look for in a quote
- Is the sealant right for the movement and the substrate?
- Their pre-qualification and accreditations
- Their public liability cover
- Do they follow the manufacturer’s priming guidance?
Fire stopping in Holbury, done properly
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal rather than guesswork. If you’re dealing with seals that don’t match their tested detail and unsealed joints where partitions meet the slab, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Holbury is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Holbury, 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 will tell you if the detail calls for something other than sealant.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Holbury (SO45)
- Region
- Hampshire
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
On site: what to expect
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes a single visit for a short list of penetrations, or a phased programme for a whole building, and we clear our waste as we work. If neighbouring businesses or buildings around Holbury need work too, visits can be combined. Tell us your site hours and we will plan around them.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Foam, ordinary sealant and debris come out.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Move anything stored against the joints
- Tell us what induction or permit system the site runs
- Send asbestos survey details if the building is pre-2000
Quotes
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or use the quote form.
Advice
Places near Holbury
Also in Holbury
What sets the cost
These are the things that shape the price:
- How accessible the joints are
- The product specified
- Working within restricted access windows
- Whether old sealant has to be cut out first
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Before you send an enquiry
It doesn’t need to be a full survey. These details are enough to start:
- Your programme or deadline
- Any specification or named product
- How the joints are reached, and at what height
- Photos of the joints, close up and from further back
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or phone 01277 525 020 or use the quote form to discuss it first.
Questions about Holbury
What does the BS 476 change mean for fire-rated sealant in Holbury?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Can work at a site such as Totton College Waterside Centre fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
How do I request a quote?
The quote form is the simplest route, though you can also speak to us on 01277 525 020 or use the quote form. Include photographs or drawings if you have them.
What hours do you work?
Mention the site’s hours and access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Can staff carry on working while you are here?
Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Will you quote for a small job?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
What sealant work can’t fix
Some faults sit outside our scope, and we say so rather than covering them up:
- Deciding what a wall or floor needs, which belongs to the designer
- Construction that lacks the fire resistance the seal relies on
- Reviewing a building’s overall fire safety
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
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
What happens if it’s left?
An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. Sealing them to the specified detail deals with the fire risk first, and the other benefits follow. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Why choose Mastic Doctor in Holbury
- Workmanship guaranteed for 12 months
- Constructionline member for supplier checks
- One phone line for London, the South East and Scotland
- Joints cleaned back to sound surfaces
Read what affects the cost and our accreditations and insurance.
Fire stopping in Holbury: the local picture
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. A number of hotels sit less than 2 miles from Holbury. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.
Colleges such as Totton College Waterside Centre, 2.2 miles north-west of Holbury, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. Theatres, wards and plant rooms at sites like Hythe Hospital, 2.3 miles north of Holbury, all have compartment walls crossed by services.
Holbury is about 2 miles south of Hythe, in Hampshire. We send applicators to Holbury for service penetrations. Holbury is one of 723 places we cover in Hampshire. There’s a separate page for Southampton, roughly 6 miles from Holbury.
Postcode districts covered here: SO45. Buildings on Beechwood Road, Park Hill Close and Pondhead Close are within our area. Sites close to Holbury are covered too, including Little Holbury (1 mile north-west), Roughdown (1 mile south), Hardley (1 mile north), Blackfield (1 mile south-east) and Langley (1 mile south). A short drive away, we cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (8 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north-east).
Landmarks near Holbury
In Holbury, that means premises near The New Forest Academy. For rail, the closest station is Netley station, about 3.8 miles north-east. A little further out are Beaulieu Abbey And Display Of Monastic Life (3.1 miles west) and Calshot Castle (3.4 miles east). Green spaces nearby include Mercury Marshes.
Commercial clients in Holbury
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.