Fire stopping in Purbrook Heath
Fire-rated and intumescent sealing of service penetrations and linear gaps in Purbrook Heath. CHAS accredited and fully insured, with a 12-month guarantee.
- Fire seals cut back for extra cables and never reinstated
- Fire stopping installed outside its tested range
- Fire-stopping items raised at inspection or handover
Fire stopping for Purbrook Heath sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Purbrook Heath
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. So our job is to reproduce that arrangement faithfully. If you’re dealing with seals that don’t match their tested detail and fire seals cut back for extra cables and never reinstated, we can help. Looking for mastic applicators who cover Purbrook Heath? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Smaller places such as Purbrook Heath still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.
Our workmanship is guaranteed for 12 months, in Purbrook Heath as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Purbrook Heath (PO7)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Why act early in Purbrook Heath
An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these. Converted and older buildings near places like Purbrook Heath tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.
Why choose Mastic Doctor in Purbrook Heath
- Products installed to the manufacturer’s instructions
- 12 months’ guarantee on every job
- One number for every site we cover
- Joints cleaned back to sound surfaces
Maintenance after handover
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Don’t let anyone top up a fire seal with the wrong product
- Flag new cables with no seal around them
- Brief every trade that openings they make must be sealed
- Leave fire sealant to cure fully before covering it
New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there instead of being left for someone else.
Places near Purbrook Heath
What else we do in Purbrook Heath
Questions about Purbrook Heath
Will you take on work at estates like Oak Park Industrial Estate, close to Purbrook Heath?
Yes. Our area takes in Purbrook Heath and its surroundings, with estates and business parks such as Oak Park Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.
Can you work around term dates at a campus such as University of Portsmouth - Langstone Campus?
Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Can you fire stop behind the services contractors?
Yes, provided a specification covers them. Openings left by new services are among the most common jobs we see.
How do I request a quote?
The quote form is the simplest route, though you can also phone 01277 525 020 or email the details over. Include photographs or drawings if you have them.
Do you approve fire stopping for building control?
No. Approval sits with the designer, principal designer or building control. We’ll confirm the product and detail installed, and you can tell us what other records you need at quote stage.
Diagnose, treat, sign off
On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Jobs in and around smaller places like Purbrook Heath are usually planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
- Have the specification and drawings to hand
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Advice
Common problems we fix in Purbrook Heath
Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it, so it has to come out.
Clients usually get in touch after noticing something like this:
- Fire stopping installed outside its tested range
- Service penetrations left open after M&E works
- Old intumescent sealant that has split away
- Openings found when ceilings come down for a refit
For a building such as Church of St John, new heating or data runs are the usual reason penetrations need sealing.
What to look for in a quote
- Are they CHAS accredited or on Constructionline?
- Their public liability cover
- Who will actually carry out the work
- What site paperwork they can supply
What affects the price in Purbrook Heath
To price the job, we consider:
- Phasing around occupants
- Location, for remote and island sites
- The size and state of each joint
- Removal of failed or old sealant
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote when you’re ready.
Before you send an enquiry
The more we know, the firmer the quote. Helpful details to send:
- Any dates the work must fit around
- A wide shot and a close-up of the area
- Drawings or a marked-up plan, if available
- The asbestos register, for older buildings
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.
Surface by surface
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail.
Linear joints
Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.
Service penetrations in Purbrook Heath buildings
Purbrook Heath lies roughly 60 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product. In England, Approved Document B covers fire stopping of 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.
At a university such as University of Portsmouth - Langstone Campus, 5 miles south of Purbrook Heath, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work. For a unit at a site such as Oak Park Industrial Estate, which lies south-west of Purbrook Heath, new power or data runs between office and warehouse can breach a compartment wall.
Purbrook Heath is about 1 mile west of Purbrook, in Hampshire. We cover Purbrook Heath and the rest of Hampshire, with the same fixed quotes and 12-month guarantee as everywhere else. Purbrook Heath is one of 723 places in Hampshire on our list.
We take on service penetrations across the PO7 postcode area, whatever the building. If your site is on Newlands Lane and Purbrook Heath Road or close by, we can quote for service penetrations. If your building is just outside Purbrook Heath, we cover Widley (1 mile south), Purbrook (1 mile east), Waterlooville (1 mile north-east), Furzeley Corner (2 miles north) and Drayton (2 miles south). Further afield, our area takes in Gosport (6 miles south-west), Havant (3 miles east), Eastleigh (14 miles north-west), Fareham (6 miles west), Horndean (3 miles north-east) and Hedge End (11 miles west).
Around Purbrook Heath
Around Purbrook Heath, our work takes us to commercial buildings near George Inn and Purbrook Park School and the streets around them. For rail, the closest station is Cosham station, roughly 1.9 miles south. Other landmarks nearby include Queen Alexandra Hospital (1.3 miles south-west) and Portchester Castle (3.4 miles south-west). The countryside around Purbrook Heath includes Southmoor Nature Reserve and Portsdown Hill.