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

Fire-rated sealing and fire stopping in East Lavant, West Sussex

Fire-rated and intumescent sealing of service penetrations and linear gaps across East Lavant, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Non-fire-rated filler around services
  • Openings found when ceilings come down for a refit
  • Fire-stopping items raised at inspection or handover
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping near East Lavant

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

Fire stopping for commercial buildings in East Lavant

It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance. We work on linear gaps at wall heads, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors, and what we are called in for most is penetration schedules that need working through and builders’ foam or ordinary silicone in compartment walls. Whether you call it commercial sealant work, mastic application or joint sealing, the work in East Lavant is the same: the right product in a properly prepared joint.

For a smaller site near East Lavant, we plan to do all the penetrations in one go, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

Place
East Lavant (PO18)
Wider area
West Sussex
Cover
12 months on every job
Quote
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Smaller jobs around East Lavant can be grouped with others nearby. You’ll have a fixed quote before work starts.

  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. Each opening is checked for wall or floor type, service, gap and depth.
  4. Unsuitable material is removed and the opening cleaned.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Preparing the site

  • Have the specification and drawings to hand
  • Tell us which areas need to stay in use
  • Make sure the joints can be reached

Ask for a quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or email the details over.

Ask for a quote

Related advice

What we’re called out for in East Lavant

When a seal departs from its tested detail, the evidence no longer covers it. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.

What tends to prompt an enquiry:

  • Head-of-wall gaps with no fire seal
  • Unsealed openings around new pipes and cables
  • Damaged fire seals in risers and voids
  • Fire stopping installed outside its tested range

Colleges such as Chichester College (2.4 miles south of East Lavant) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.

What your quote should include

  • How they handle RAMS and site documents
  • Whether primer will be used where the manufacturer specifies it
  • How long is the guarantee, and what does it include?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Common questions from East Lavant clients

Does your area include sites such as Summersdale Retail Park, near East Lavant?

Yes. Our area takes in East Lavant and its surroundings, with estates and business parks such as Summersdale Retail Park included. Send details of the unit and the work through our quote form for a quick quote.

Is a smaller place like East Lavant outside your area?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Do you work to architects’ specifications?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

Is BS 476 being phased out?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029, with transitional arrangements set by the Government. The European route, BS EN 13501-2, then applies. Product selection stays with your designer.

What will the job cost?

We don’t publish prices, because every site is different. With photographs or drawings, we can give you a fixed quote.

Can you tell us what fire stopping our building needs?

No, that isn’t our role. With the designer’s details in hand, we can price the sealant elements and point out anything needing another product.

Are you fully insured?

Yes. We’re fully insured, and the certificate can go with your quote.

Surface by surface

Drylining partitions

Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.

Small ducts

Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.

How the quote is worked out

There’s no standard rate for sealant work, since sites vary so much. What we take into account:

  • Working within restricted access windows
  • Any access equipment needed
  • The site’s rules and procedures
  • The product specified

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

What to include in your enquiry

A good diagnosis starts with the right details. Let us know:

  • Photos of the joints, close up and from further back
  • Anything awkward about access or site hours
  • Rough lengths or quantities, or drawings if you have them
  • The postcode of the building

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email a schedule or drawings.

Aftercare for building managers

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

  • Ask which product is in place before decorating
  • Check risers and ceiling voids after each round of works
  • Foam or ordinary sealant is never a fire-seal repair
  • Record which product was used where

Don’t patch a fire-rated seal with anything outside its tested detail. Repairs need the same product and detail as the original, or a new specification from the designer.

Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job; found late, it can be one of many.

Commercial clients in East Lavant

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. East Lavant can form part of a wider programme.

Compartments and services around East Lavant

A 2-mile radius around East Lavant takes in several hotels. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal. East Lavant is about 53 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

For a hotel such as Hunters Lodge Hotel, 0.7 miles to the north-west of East Lavant, penetration seals are worth checking after any refit or services upgrade. Refits at places like Summersdale Retail Park (to the south-west of East Lavant) often reroute services through walls between units.

East Lavant is about 2 miles north of Chichester, in West Sussex. We cover East Lavant, with the same fixed quotes and 12-month guarantee as everywhere else. East Lavant is one of 373 places in West Sussex on our list. For work in that direction, see our Portsmouth page (14 miles or so).

We take on service penetrations across the PO18 postcode area. Buildings on Pook Lane, Fordwater Road and Shop Lane are within our area for service penetrations. Just outside East Lavant, we also work in Mid Lavant (1 mile north-west), Westerton (2 miles south-east), Westhampnett (2 miles south-east), Waterbeach (2 miles east) and Maudlin (2 miles south-east). Further afield, our area takes in Bognor Regis (7 miles south-east), Selsey (9 miles south), Littlehampton (11 miles east), Rustington (12 miles east), Storrington (15 miles east) and Angmering (13 miles east).

Landmarks near East Lavant

We work on buildings around The Royal Oak Public House and Bishop Luffa School. For rail, the closest station is Chichester station, about 2.5 miles south of the centre. Other landmarks nearby include Chichester Castle (2 miles south) and The Chichester City Museum (2.1 miles south). For a walk, there’s Stoke Down and Kingley Vale National Nature Reserve.

Map of East Lavant © OpenStreetMap contributors
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