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

Fire stopping in Maldon

Work needed on a service penetration in Maldon? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Unsealed openings around new pipes and cables
  • Openings found when ceilings come down for a refit
  • Penetration schedules that need working through
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping across Maldon

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

Your questions answered

Do you seal service penetrations in hotels around Maldon?

Yes, where fire-rated sealant is the specified product. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we’ll tell you if the detail calls for a collar, wrap or batt instead.

How does the move away from BS 476 affect penetration seals in Maldon?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

When can you be on site?

We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Are you fully insured?

Yes. We are fully insured, including public liability cover.

Can you quote from photos?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit before quoting.

Do you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

Do you guarantee your work?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

Fire stopping in Maldon, done properly

We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We don’t hold a third-party fire-stopping installer certificate, and we won’t pretend otherwise. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. We work on small duct penetrations where the tested detail allows, linear gaps at wall heads and pipe penetrations, and the usual reasons a site gets in touch are unsealed penetrations discovered above suspended ceilings and non-fire-rated filler around services. Facilities teams, main contractors and managing agents in Maldon tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Many town-centre buildings in places like Maldon have had layer upon layer of new services, with gaps around pipes and cables left after each change. Intumescent or fire-rated sealant is used wherever the specification asks for it, built up exactly as tested.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

Place
Maldon (CM9, CM3, CM0, CM8)
Region
Essex
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

How a job runs

Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Parking and loading for town-centre jobs in Maldon are worth mentioning when you send details. Industrial and business units usually have yard or car park space.

  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. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Preparing the site

  • Clear stock, furniture or equipment away from the joints
  • Warn occupants and staff about the work
  • Let us know about inductions and permits

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.

Get a quick quote

Advice

Fire stopping around Maldon: points for this area

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. The area within 2 miles of Maldon holds a number of hotels. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal.

Hotels like Swan Hotel, less than half a mile to the north of Maldon, are refurbished in phases, and each phase can open up compartment walls. Holiday works at schools like Maldon Primary School often leave service openings to seal before pupils return. For a unit at a site such as Riverside Industrial Estate, which lies north of Maldon, new power or data runs between office and warehouse can breach a compartment wall.

Maldon is about 15 miles south-west of Colchester, in Essex. Businesses, contractors and managing agents in Maldon use us for work on service penetrations. Maldon is one of 644 places in Essex on our list. Sites around London have their own page, roughly 37 miles from Maldon.

Postcode districts covered here: CM9, CM3, CM0 and CM8 for service penetrations. Streets here include High Street, Market Hill and Brooke Square, and sites on any of them can send details for a fixed quote. You will find Maldon on or near the A414 and B1010, so getting applicators and materials to site is simple. Just outside Maldon, we also work in Heybridge (1 mile north), Langford (2 miles north-west), Curling Tye Green (2 miles west), Broad Street Green (2 miles north) and Hazeleigh (3 miles south-west). A short drive away, we cover Colchester (15 miles north-east), Chelmsford (8 miles west), Basildon (14 miles south-west), Braintree (12 miles north-west), Canvey Island (15 miles south) and Billericay (13 miles south-west). Among the larger centres in Essex is Maldon, and we take on service penetrations for its commercial and public buildings.

Near you in Maldon

Around Maldon, our work takes us to commercial buildings near Plume School, Plume Library and The Ship And Anchor Public House, among other places. Other landmarks nearby include Maldon & District Agricultural & Domestic Museum (3.6 miles north-east). Open spaces near Maldon include Maldon Wick.

Map of Maldon © OpenStreetMap contributors

How the job changes by surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.

Masonry and concrete

Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening, with backing added if the detail requires it.

What we can’t put right

Being straight saves everyone time. Fresh joints won’t solve:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Walls or floors that aren’t fire-resisting to begin with
  • Designing or specifying fire stopping, which sits with the designer or fire engineer

If you’re not sure, just phone 01277 525 020 or email drawings and photos and we’ll give you a straight answer.

Surfaces we seal

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

Site staff or a sealant specialist?

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Owners, agents and contractors

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

Why act early in Maldon

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. In a town like Maldon, a split, stained or mouldy joint is often the first thing visitors notice. Fresh sealant makes a building look maintained.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why us?

  • Constructionline member
  • CHAS accredited
  • Clear, fixed quotes
  • 12-month guarantee on workmanship

See what affects the cost and our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.