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

Moulsham fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps in Moulsham and across Essex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Seals disturbed by maintenance and left open
  • Unsealed openings around new pipes and cables
  • Improvised or mixed-product fire seals
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.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping for businesses in Moulsham

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

Fire stopping for commercial buildings in Moulsham

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. 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. Most enquiries involve fire-rated sealant that has cracked or shrunk back and improvised or mixed-product fire seals, on small duct penetrations where the tested detail allows, service gaps in risers and cable penetrations. A specialist sealant contractor works differently from a general builder: on jobs in Moulsham, preparation and product choice get the time they need.

Around Moulsham, penetration and linear seals tend to be one-building jobs. Send the specification, drawings or photos of the openings and we’ll quote to suit.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Location
Moulsham (CM2, CM1)
Wider area
Essex
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Doing it in-house

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Our process

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Several jobs near Moulsham can be grouped on one trip. 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. 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. Unsuitable material is removed and the opening cleaned so the seal starts clean.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. We tell you about openings that need a different product.

Preparing the site

  • Have the specification and drawings to hand
  • Tell us what induction or permit system the site runs
  • Point out any areas we must not close

Ask for a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or email drawings and photos.

Get a price

Advice

Aftercare for building managers

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:

  • Leave fire sealant to cure fully before covering it
  • Put resealing into every M&E and fit-out package
  • Agree the fire-stopping specification before services go in
  • Record which product was used where

New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.

Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.

Service penetrations in Moulsham buildings

A 2-mile radius around Moulsham takes in a number of hotels. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail. Moulsham is about 29 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Shop fits on retail sites such as High Chelmer Shopping Centre, less than half a mile north of Moulsham, can bring new services through fire-resisting walls between units, to be sealed with the specified product. For a site team at a college like Chelmsford College - Moulsham Street Campus, less than half a mile south-west of Moulsham, fire-rated sealing is best scheduled after the summer works.

Moulsham is about 1 mile south-west of Chelmsford, in Essex. If you’re looking for fire stopping in Moulsham, we can help. We work across 644 places in Essex, large and small. We also cover London, around 29 miles from Moulsham.

Anyone looking for fire stopping in CM2 and CM1 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include Elm Road, York Road and Lady Lane. Main routes into Moulsham include the A1060 and A1099. Sites close to Moulsham are covered too, including Chelmsford (1 mile north-east), Widford (1 mile south-west), Patching (2 miles north), Writtle (2 miles west) and Chignall St James (3 miles north-west). Bigger towns within reach include Basildon (11 miles south), Braintree (11 miles north), Harlow (15 miles west), Brentwood (10 miles south-west), Maldon (9 miles east) and Canvey Island (15 miles south).

Landmarks near Moulsham

Recent enquiries here include premises near Moulsham High School, Chelmsford College and Oaklands Park, among other places. Also close by are Our Lady Immaculate Church (less than half a mile north) and The Anchor Public House (less than half a mile north-east). Moulsham’s nearest station is Chelmsford station, roughly 0.6 miles north. A little further out are Bond Street Chelmsford (0.6 miles north-east) and Peter Edwards Museum And Library (less than half a mile north). For a walk, there’s Newland Grove.

Map of Moulsham © OpenStreetMap contributors

Questions about Moulsham

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

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is 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.

Do you seal service penetrations in hotels around Moulsham?

Yes, to the specification and the product’s tested detail. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it.

How do you deal with asbestos in old sealant?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Do your applicators hold CSCS cards?

Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.

Do you guarantee your work?

Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.

Is any job too small?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

What we are called out for in Moulsham

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 what we find most often.

Things that normally lead to an enquiry:

  • Unsealed joints where partitions meet the slab
  • Fire-rated sealant that has cracked or shrunk back
  • Unsealed penetrations discovered above suspended ceilings
  • Non-fire-rated filler around services

In a hotel such as The Saracen's Head Hotel, which lies north-east of Moulsham, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.

Questions to ask before you book

  • Their approach to joint depth and backing
  • Their public liability cover
  • What the guarantee covers, and for how long
  • Is the sealant right for the movement and the substrate?

How to choose a sealant contractor

When it isn’t the sealant

Sealant solves a lot, but not everything, and we are upfront when that’s the case. These need a different solution:

  • Writing the fire-stopping specification
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Fire risk assessments, a job for a competent assessor

Not sure which it is? You can call 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.

What we seal

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

What affects the price in Moulsham

We price every job individually. The main factors are:

  • Whether old sealant has to be cut out first
  • How much there is to seal
  • Working within restricted access windows
  • The product specified

Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.

What we need to price the job

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

  • Your programme or deadline
  • Access details, including height
  • A wide shot and a close-up of the area
  • Specification clauses that apply

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Accreditations

Trusted. Accredited. Insured.