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

Catherington fire stopping

Need fire stopping in Catherington? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Damaged fire seals in risers and voids
  • Openings left by services added after handover
  • Unsealed penetrations discovered above suspended ceilings
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping for Catherington sites

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

Compartment walls and floors in Catherington

In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. Catherington has two care or nursing homes no more than 2 miles away. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.

In a building such as Church of All Saints, any service penetration through a fire-resisting wall should be sealed to the specified detail. On a hospital site such as Havant War Memorial Hospital, 5.3 miles south of Catherington, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. For a building at a site such as Enterprise Industrial Estate, which lies south-east of Catherington, a check of penetration seals after each fit-out is good practice.

Catherington is about 2 miles north of Horndean, in Hampshire. Commercial clients in Catherington use us for work on service penetrations, as part of our coverage of Hampshire. We work across 723 places in Hampshire. There’s a separate page for Portsmouth, about 9 miles away.

Commercial sites across PO8 are covered for service penetrations. Among the streets we cover are Glamorgan Road, Wrexham Grove and White Dirt Lane, and sites on any of them can send details for a fixed quote. If your building is just outside Catherington, we cover Clanfield (1 mile north), Lovedean (2 miles south-west), Horndean (2 miles south), Wecock Farm (2 miles south-west) and Anmore (3 miles south-west). A short drive away, we cover Gosport (11 miles south-west), Havant (5 miles south), Eastleigh (15 miles west), Fareham (10 miles south-west), Alton (15 miles north) and Hedge End (13 miles west).

What’s near Catherington

Around Catherington, our work takes us to commercial buildings near Horndean Technology College and the streets around them. The nearest railway station is Rowlands Castle station, roughly 3.5 miles south-east. Well-known places in the area include Havant War Memorial Hospital (5.3 miles south) and Clanfield Earthwork (1.7 miles north-east). Not far away are Windmill Hill.

Map of Catherington © OpenStreetMap contributors

Fire stopping in Catherington

Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. Site teams most often ask us about service penetrations left open after M&E works and seals that don’t match their tested detail, on joints between fire-resisting walls and floors, cable penetrations and linear gaps at wall heads. Searching for sealant specialists in Catherington? We have been sealing commercial buildings since 2005.

Rural conversions around Catherington can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Where
Catherington (PO8)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What the job involves on each surface

Plastic pipes

Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail, though larger ones normally call for a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.

Risers and ceiling voids

Openings above suspended ceilings are easy to miss. We work through the areas on your schedule methodically.

Diagnose, treat, sign off

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Jobs in and around smaller places like Catherington 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.

  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. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

What we need from you

  • Arrange parking or a loading space
  • Make sure the joints can be reached
  • Flag any permit to work we’ll need

Quotes

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to ring 01277 525 020 or use the quote form.

Get a price

Related advice

Honest limits

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Signing off or certifying a building’s fire stopping
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Walls or floors that aren’t fire-resisting to begin with

Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we will tell you honestly before you book.

Surfaces we seal

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

Owners, agents and contractors

CHAS accredited and a 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. Programme, specification and site rules come first, with CSCS-carded applicators on site.

Catherington: questions and answers

Can you work at a site such as Enterprise Industrial Estate, by Catherington?

Yes. Our area takes in Catherington and its surroundings, with estates and business parks such as Enterprise Industrial Estate included. A few photos and the unit address let us price the work.

Can you take on a job at a hospital such as Havant War Memorial Hospital?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

Do you guarantee your work?

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

Do you have third-party installer accreditation for fire stopping?

No. We are not members of a third-party fire-stopping installer scheme. We are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded. If your contract requires third-party installer certification, we are not the right fit for that package.

Can you send site paperwork?

Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.

What’s the quickest route to a quote?

There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

Can you fire stop behind the services contractors?

Yes. Share the penetration schedule and product details. Work can run area by area behind the M&E trades keeping pace with the programme.

Quoting for work in Catherington

Your fixed quote is built from the real scope. It allows for:

  • Phasing around occupants
  • Any access equipment needed
  • Location, for remote and island sites
  • The total length or number of joints

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

What we need to price the job

Whether it’s one area or a whole building, the same details help:

  • How the joints are reached, and at what height
  • Any specification or named product
  • Asbestos survey details if the building is older
  • Whether the building will be occupied during the work

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or use the quote form.

Why it’s worth doing now in Catherington

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed. One visit to deal with every failing joint makes more sense than several trips to a place like Catherington, rather than one at a time. Photos of every joint help us quote for the whole job.

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.

What you get with us

  • 12-month guarantee on workmanship
  • Products installed to the manufacturer’s instructions
  • Joints cleaned back to sound surfaces
  • Health and safety: CHAS accredited

See our cost guide and our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.