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

Fire Stopping in Horton Heath

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Horton Heath. Send photographs or drawings for a fixed quote.

  • Expanding foam used as fire stopping
  • Unsealed penetrations discovered above suspended ceilings
  • Fire stopping installed outside its tested range
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping near Horton Heath

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Fire stopping in Horton Heath

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. 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. We work on small duct penetrations where the tested detail allows, cable penetrations and service gaps in risers, and what we are called in for most is fire-stopping items raised at inspection or handover and builders’ foam or ordinary silicone in compartment walls. Whoever orders the work in Horton Heath, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Around smaller places like Horton Heath, many commercial buildings are conversions or extensions of older ones, so it’s worth confirming the wall or floor type before choosing the seal. 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.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Horton Heath (SO50)
Wider area
Hampshire
Cover
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Our process

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes anything from one day to a planned run of visits, depending on the number of seals and the access, and we clear our waste as we work. If neighbouring businesses or buildings around Horton Heath need work too, visits can be combined. Mention the building’s opening times and we will work within them.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out first.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

What we need from you

  • Explain the parking and delivery arrangements
  • Make sure the joints can be reached
  • Send your site hours and access windows

Get a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, ring 01277 525 020 or email a schedule or drawings.

Get a price

Advice

When to call us in Horton Heath

Some service penetrations were never sealed at all because they sat out of sight above a ceiling or inside a riser. Inspections, refurbishments and ceiling access typically bring them to light.

Any of the following is a good reason to get the joints checked over:

  • Penetration schedules that need working through
  • Non-fire-rated filler around services
  • Service penetrations left open after M&E works
  • Old intumescent sealant that has split away

For an estates team at a campus like University of Southampton, 4.8 miles west of Horton Heath, summer M&E works are normally followed by a round of penetration sealing.

Comparing quotes

  • How they handle RAMS and site documents
  • Which product they’ll use, and why it suits the joint
  • Proof of insurance
  • The terms of the workmanship guarantee

How to choose a sealant contractor

Your questions answered

Is Deer Park Farm Industrial Estate, near Horton Heath, within your area?

Yes, sites like Deer Park Farm Industrial Estate are within our area, along with the rest of Horton Heath. A few photographs and the unit address let us price the work.

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Horton Heath?

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.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

Who decides which product is used?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Are you CHAS accredited and on Constructionline?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Do you cover Horton Heath?

Yes. Horton Heath falls within our area, and the simplest way to start is to call the office on 01277 525 020 or email a schedule or drawings.

Leave it or put it right?

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is normally a modest job when the openings are accessible. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. For buildings in places like Horton Heath, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

What you get with us

  • Failed material removed, not covered up
  • A Constructionline member, so easy to vet
  • Commercial sealant work since 2005
  • 12-month guarantee on workmanship

Read how commercial sealant jobs are priced and how we’re accredited.

Compartments and services around Horton Heath

For England, the fire stopping of penetrations is dealt with in 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. We install whatever has been specified, to the product’s tested detail. Horton Heath lies roughly 64 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls.

Where a unit on an estate such as Deer Park Farm Industrial Estate, 0.9 miles to the north-east of Horton Heath, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Wherever services are added at a hospital such as Moorgreen Hospital (to the south-west of Horton Heath) the compartment line has to be made good with the specified product.

Horton Heath is about 2 miles south-east of Eastleigh, in Hampshire. We cover Horton Heath and the rest of Hampshire, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 723 places in Hampshire, from busy centres to rural villages.

Anyone looking for fire stopping in SO50 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on The Lillies, Botley Road and Centaury Gardens or close by, send details and we’ll quote for service penetrations. If your building is just outside Horton Heath, we cover Fair Oak (1 mile north), Durley (2 miles east), Boorley Green (2 miles south-east), Wintershill (2 miles east) and Durley Street (2 miles east). A short drive away, we cover Winchester (7 miles north), Gosport (12 miles south-east), Havant (15 miles south-east), Fareham (8 miles south-east), Horndean (13 miles east) and Totton (9 miles west).

Near you in Horton Heath

Locally, jobs take us to sites close to The Old George Public House, Wyvern Technology College and Wyvern Technology College, among other places. The closest station to Horton Heath is Hedge End station, about 1.4 miles south. A little further out are Moorgreen Hospital (2 miles south-west) and Eastleigh Museum (2.7 miles north-west). For a walk, there’s Bishops Waltham Branch LNR.

Map of Horton Heath © OpenStreetMap contributors

What we can’t put right

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Plastic pipes whose detail calls for a collar or wrap
  • Issuing fire ratings or certificates for seals
  • Fire doors, dampers or other fire safety equipment

If in doubt, ring 01277 525 020 or send photos by email and we will say what we think.

Surfaces we seal

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

How the quote is worked out

What shapes the price:

  • Quantities, in metres or numbers
  • Specialist products, such as fire-rated or hygienic sealants
  • Any access equipment needed
  • Backing rod, priming and other preparation

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a quote when you are ready.

What to include in your enquiry

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

  • Whether an asbestos survey exists
  • When you need the work done
  • A wide shot and a close-up of the area
  • The postcode of the building

To get a fixed quote, ring 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. You can also send details through our quote form.

For managing agents and facilities managers

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

Building owners and managing agents use us on everything from one building to a spread of sites around Horton Heath. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Accreditations

Trusted. Accredited. Insured.