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

Fire Stopping in Runcton

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

  • Fire seals cut back for extra cables and never reinstated
  • Unsealed penetrations discovered above suspended ceilings
  • Non-fire-rated filler around services
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Need fire stopping in Runcton?

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

How we handle fire stopping in Runcton

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. We work on small duct penetrations where the tested detail allows, cable penetrations and linear gaps at wall heads, and what we are called in for most is penetration schedules that need working through and seals that don’t match their tested detail. Facilities teams, main contractors and managing agents in Runcton tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

For a smaller site near Runcton, we plan to do all the penetrations in one go, so send the specification and photographs first. Design and sign-off belong to the designer or building control; we install what’s specified.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Place
Runcton (PO20)
Region
West Sussex
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Doing it in-house

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

After the work

Problems stay small when the joints are checked regularly. In particular:

  • Foam or ordinary sealant is never a fire-seal repair
  • Keep product data and details in the fire safety file
  • Treat an open penetration as a priority repair
  • Have penetrations checked while they can still be seen

After every round of M&E works, check that the openings created have been sealed. A short check at the end of each job saves a long hunt later.

Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.

On site: what to expect

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself typically takes a single visit for a short list of penetrations, or a phased programme for a whole building, and we clear our waste as we work. Jobs in and around smaller places like Runcton are usually planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Before we start on site

  • Make sure the joints can be reached
  • Tell staff and tenants when we will be in
  • Tell us what induction or permit system the site runs

Getting a fixed quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call the office on 01277 525 020 or email drawings and photos.

Get a quick quote

Related advice

When to call us in Runcton

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint, and the wrong product can split as a result. Linear joint details set a width range and movement capability, and the seal has to sit within them.

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

  • Fire-rated sealant that has cracked or shrunk back
  • Open linear gaps along the top of fire-resisting walls
  • Penetration schedules that need working through
  • Expanding foam used as fire stopping

Where a unit on an estate such as Quarry Lane Industrial Estate, 1.2 miles to the north-west of Runcton, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail.

Before you book anyone

  • How they’ll work around occupants
  • How they handle RAMS and site documents
  • Whether old or failed sealant will be cut out, not overlaid
  • What the guarantee covers, and for how long

How to choose a sealant contractor

What sealant work can’t fix

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Writing the fire-stopping specification
  • Plastic pipes whose detail calls for a collar or wrap
  • Issuing fire ratings or certificates for seals

If you are not sure, just phone 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.

Where we work in Runcton

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

What sets the cost

We price every job individually. The main factors are:

  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • Any access equipment needed
  • Distance, for remote addresses

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

What to include in your enquiry

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

  • Specification clauses that apply
  • Access details, including height
  • When you need the work done
  • Drawings or a marked-up plan, if available

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.

FAQs: Runcton

Would you work within a site like St Richard's Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Do you work on fire-rated sealing in hotels in Runcton?

Yes, where fire-rated sealant is the specified product. We match the product to the wall or floor and the services, and say if something other than sealant is needed.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

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

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

Can the sealant be colour-matched?

Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We will confirm the colours available for the specified product.

Can you fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Compartments and services around Runcton

Runcton lies roughly 55 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. The area within 2 miles of Runcton holds a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

Halls and meeting rooms at places like The Parish Church of St Stephen sometimes gain new services, and any compartment wall crossed needs the specified seal. At a university such as University of Chichester, 1.3 miles east of Runcton, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.

Runcton is about 2 miles south-east of Chichester, in West Sussex. Our applicators travel to Runcton for work on service penetrations. Runcton is one of 373 places in West Sussex on our list for service penetrations. For work in that direction, see our Portsmouth page (14 miles or so).

Anyone looking for fire stopping in PO20 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Goodwood Gardens, Brookside and Lagness Road and the roads nearby. If your building is just outside Runcton, we cover North Mundham (1 mile west), Merston (1 mile north-east), Lagness (1 mile south-east), Hunston (1 mile west) and Portfield (2 miles north). Nearby towns on our patch include Worthing (15 miles east), Bognor Regis (3 miles south-east), Selsey (6 miles south), Littlehampton (9 miles east), Rustington (10 miles east) and Storrington (15 miles north-east).

Near you in Runcton

In Runcton, that means premises near Chichester High School For Girls. For rail, the closest station is Chichester station, about 1.9 miles north-west. Other landmarks nearby include Chichester Castle (2.1 miles north-west) and The Chichester City Museum (2 miles north-west).

Map of Runcton © OpenStreetMap contributors
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