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

Bull Hill fire stopping

Fire stopping for Bull Hill, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Seals disturbed by maintenance and left open
  • Improvised or mixed-product fire seals
  • Unsealed penetrations discovered above suspended ceilings
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Need fire stopping in Bull Hill?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Why deal with it now?

A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. Around Bull Hill, it’s better to renew all the failing joints at once. Send photos of each area and we’ll quote for the lot.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

Why appoint us

  • Public liability insurance in place
  • Work to your specification and the manufacturer’s guidance
  • Old sealant cut out, never sealed over
  • One contact handling all your sites

See what affects the cost and how we’re accredited.

How we handle fire stopping in Bull Hill

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on buildings around Bull Hill. Most enquiries involve unsealed joints where partitions meet the slab and unsealed openings around new pipes and cables, across linear gaps at wall heads, pipe penetrations and joints between fire-resisting walls and floors. Searching for sealant specialists in Bull Hill? We’ve been sealing commercial buildings since 2005.

Barn and farm-building conversions near places like Bull Hill often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Bull Hill (SO41)
Wider area
Hampshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Looking after the joints

Problems stay small when the joints are checked regularly. Specifically:

  • Report damaged or disturbed seals as soon as they’re spotted
  • Check with the data sheet before painting over fire sealant
  • Make fire stopping part of every scope that crosses a fire-resisting wall
  • Agree the fire-stopping specification before services go in

Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail.

Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open instead of being left for someone else.

Bull Hill: questions and answers

Do you take on work at healthcare sites like Lymington New Forest Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is Bull Hill too far out for you?

Not at all. Bull Hill is within our area. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.

Is it fine to apply new sealant on top of old?

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

How long does a typical visit take?

The duration is planned around your programme and the access we’re given. We will give you an estimate of time on site when we quote.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

Is the BS 476 change in 2029 relevant to fire stopping?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029. After that, the European classification under BS EN 13501-2 is the route. Your designer will choose products with the right evidence.

Owners, agents and contractors

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

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, with CSCS-carded applicators on site.

When it isn’t the sealant

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Issuing fire ratings or certificates for seals
  • Fire risk assessments, a job for a competent assessor
  • Writing the fire-stopping specification

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we will tell you honestly.

Where we work in Bull Hill

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

Diagnose, treat, sign off

On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, and the work usually takes a single visit for a short list of penetrations, or a phased programme for a whole building. Jobs in and around smaller places like Bull Hill are typically planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

What we need from you

  • Confirm the product named in the specification
  • Tell us what induction or permit system the site runs
  • Send your site hours and access windows

Quotes

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, ring 01277 525 020 or send photos by email.

Get a quick quote

Advice

Fire-rated sealing for Bull Hill buildings

The area within 2 miles of Bull Hill holds several hotels. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal. Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail.

Hospital estates such as Lymington New Forest Hospital, 1.5 miles to the south-west of Bull Hill, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. For a school such as William Gilpin Church of England Primary School, penetration sealing fits best at the end of the summer works. For a building such as Saint Nicholas Chapel, new heating or data runs are the usual reason penetrations need sealing.

Bull Hill is about 2 miles north-east of Lymington, in Hampshire. We cover commercial sites throughout Bull Hill, for single jobs and planned programmes alike. Bull Hill is one of 723 places in Hampshire on our list for service penetrations. Southampton is covered too, around 11 miles from Bull Hill.

Business premises anywhere in SO41 are within our area for service penetrations. We cover commercial and managed buildings on Holly Lane and Jordans Lane and the roads nearby. Just outside Bull Hill, we also work in Pilley Bailey (1 mile north-west), Pilley (1 mile west), Portmore (1 mile south), Warborne (1 mile south-west) and Boldre (1 mile west). Nearby towns on our patch include Eastleigh (15 miles north-east), Fareham (15 miles east), Totton (9 miles north), Chandler's Ford (15 miles north-east), Hedge End (13 miles north-east) and Romsey (15 miles north).

Landmarks near Bull Hill

We work on buildings around Southlands School. The closest station to Bull Hill is Lymington Town station, about 1.8 miles south-west of the centre. Nearby you’ll also find Lymington New Forest Hospital (1.5 miles south-west) and St Barbe Museum and Art Gallery (2 miles south-west). Not far away are Boldre Foreshore.

Map of Bull Hill © OpenStreetMap contributors

What sets the cost

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • Quantities, in metres or numbers
  • Any access equipment needed
  • The site’s rules and procedures
  • Whether the work must be split into stages

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you’re ready.

Before you send an enquiry

Diagnosis starts before we arrive. Tell us:

  • The asbestos register, for older buildings
  • Specification clauses that apply
  • Approximate linear metres or a joint schedule
  • Your programme or deadline

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or send photos by email.

Accreditations

Trusted. Accredited. Insured.