The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Fire-rated sealing and fire stopping in North Fareham, Hampshire

Fire-rated and intumescent sealing of service penetrations and linear gaps across North Fareham, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Unsealed penetrations discovered above suspended ceilings
  • Penetration schedules that need working through
  • Seals that don’t match their tested detail
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Fire stopping across North Fareham

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our fire stopping in North Fareham

Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4 and the results are classified to BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. Most enquiries involve openings found when ceilings come down for a refit and non-fire-rated filler around services, on cable penetrations, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors. Facilities teams, main contractors and managing agents in North Fareham tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Around smaller places like North Fareham, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Where
North Fareham (PO17)
Region
Hampshire
Cover
12 months on our workmanship
Price
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Honest limits

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Fire doors, dampers or other fire safety equipment
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Issuing fire ratings or certificates for seals

If you are not sure, just call 01277 525 020 or send details through our quote form and we will give you a straight answer before you book.

Joints and surfaces we work on

  • Service gaps in risers
  • Joints between fire-resisting walls and floors
  • Pipe penetrations
  • Small duct penetrations where the tested detail allows
  • Linear gaps at wall heads
  • Cable penetrations

Fire-rated sealing for North Fareham buildings

In England, Approved Document B covers fire stopping of openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. North Fareham lies roughly 64 miles out from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls, and the gaps need sealing with the specified product.

For a hotel such as Lysses House Hotel (0.9 miles south of North Fareham), penetration seals are worth checking after any refit or services upgrade. In a building such as Parish Church of St Peter and St Paul, any service penetration through a fire-resisting wall should be sealed to the specified detail.

North Fareham is about 1 mile north-east of Fareham, in Hampshire. We cover North Fareham, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. North Fareham is one of 723 places in Hampshire on our list for service penetrations. There’s a separate page for Portsmouth, about 6 miles away.

If you need fire stopping in PO17, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Nearby places we also cover include Wallington (1 mile south), Fareham Common (1 mile south), Crockerhill (1 mile north), Welborne (1 mile north-west) and Boarhunt (1 mile east). Further afield, our area takes in Winchester (15 miles north-west), Gosport (4 miles south), Havant (8 miles east), Eastleigh (10 miles north-west), Horndean (8 miles east) and Totton (15 miles west).

Local landmarks in North Fareham

In North Fareham, that means premises near The Golden Lion Public House, Cams Hill School and Wykeham House School, among other places. North Fareham’s nearest station is Fareham station, about 1.3 miles south-west of the centre. A little further out are Carron Row Farm Museum (2.7 miles west) and Fareham Shopping Centre (1 mile south). Not far away are Portsdown Hill and West of the River Alver.

Map of North Fareham © OpenStreetMap contributors

Maintenance after handover

Cleaning and maintenance staff play a part too. Share these points with them:

  • Leave fire sealant to cure fully before covering it
  • Treat an open penetration as a priority repair
  • Brief every trade that openings they make must be sealed
  • Look above ceilings when tiles are lifted for other jobs

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, which saves guesswork.

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. Older rural buildings around North Fareham move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote when you’re ready.

Why clients in North Fareham choose us

  • One number for every site we cover
  • Our applicators hold CSCS cards
  • Fixed quotes based on photographs, drawings or a visit
  • Over 20 years of commercial sealing

Take a look at how commercial sealant jobs are priced or how we’re accredited.

On site: what to expect

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you. Jobs in and around smaller places like North Fareham are usually planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. We read the specification, drawings or penetration schedule you send.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Getting the site ready

  • Share the asbestos register for older buildings
  • Arrange parking or a loading space
  • Tell staff and tenants when we’ll be in

Getting a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to give us a call on 01277 525 020 or send photos by email with what you know.

Get a quick quote

Read more

North Fareham: questions and answers

Can you work on a hospital site such as Knowle Hospital?

Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.

What does the BS 476 change mean for fire-rated sealant in North Fareham?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Can the building stay open while you work?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How soon can the area be used again?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.

When can you be on site?

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.

Is your workmanship covered by a guarantee?

Yes. Our workmanship is backed for 12 months on every job.

What affects the price in North Fareham

Each job is priced on its own details. The main factors are:

  • Joint width, depth and condition
  • Specialist products, such as fire-rated or hygienic sealants
  • The total length or number of joints
  • Removal of failed or old sealant

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.

Sending details for a quote

Good information means a firmer quote. When you get in touch, include:

  • Rough lengths or quantities, or drawings if you have them
  • What the building is and how it’s used
  • Anything awkward about access or site hours
  • Where the site is, with the postcode

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or send details through our quote form.

When to call us in North Fareham

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps, and a product not tested for that movement may crack. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Things that usually lead to an enquiry:

  • Unsealed penetrations discovered above suspended ceilings
  • Seals disturbed by maintenance and left open
  • Non-fire-rated filler around services
  • Snag lists that include open service penetrations

Theatres, wards and plant rooms at sites like Knowle Hospital (to the north-west of North Fareham) all have compartment walls crossed by services.

Comparing quotes

  • Health and safety accreditation such as CHAS
  • Is the sealant right for the movement and the substrate?
  • Whether their applicators hold CSCS cards
  • Their public liability cover

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.