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

Fire Stopping in Great Horkesley

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

  • Improvised or mixed-product fire seals
  • Head-of-wall gaps with no fire seal
  • Builders’ foam or ordinary silicone in compartment walls
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping in Great Horkesley

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

About our fire stopping in Great Horkesley

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints and the results are classified to BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. Reproducing the tested arrangement on site is the part we take care of. Site teams most often ask us about non-fire-rated filler around services and unsealed openings around new pipes and cables, on cable penetrations, service gaps in risers and small duct penetrations where the tested detail allows. One point of contact handles commercial sealant work in Great Horkesley from the first photos to the final walk-round, for single jobs and planned programmes alike.

Around Great Horkesley, penetration and linear seals tend to be one-building jobs. Send the specification, drawings or photographs of the openings and we will quote to suit.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Great Horkesley (CO6)
Wider area
Essex
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

What the job involves on each 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 and we confirm each before sealing.

Plastic pipes

Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail.

Questions we’re asked in Great Horkesley

Will you take on work at estates like Turner Rise Retail Park, close to Great Horkesley?

Yes. Estates, retail parks and business parks around Great Horkesley, Turner Rise Retail Park among them, are all within reach. Photos and a short description are enough for a first look.

What does the BS 476 change mean for fire-rated sealant in Great Horkesley?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Can the building stay open while you work?

In the majority of cases, yes. We phase the work so most of the building stays in use.

How soon can the area be used again?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.

Can you fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we will schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

Are you CHAS accredited?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

What sets the cost

What shapes the price:

  • How accessible the joints are
  • Travel to remote or island sites
  • Specialist products, such as fire-rated or hygienic sealants
  • How much existing material needs removing

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

What we need to price the job

A few photos plus some basic facts will normally do. Please tell us:

  • A wide shot and a close-up of the area
  • How the joints are reached, and at what height
  • Any dates the work must fit around
  • The postcode of the building

To get a fixed quote, call 01277 525 020 or send photos by email. Our quote form is another easy route.

From enquiry to sign-off

Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. What matters most for a job in Great Horkesley is a clear list of what needs doing, so send photos of each area. You will then get a fixed price for the work.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Flag any permit to work we will need
  • Agree which areas must stay open
  • Warn occupants and staff about the work

Quotes

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Ask for a quote

Read more

Do you need fire stopping in Great Horkesley?

Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.

Typical triggers for a call:

  • Fire seals cut back for extra cables and never reinstated
  • Penetration schedules that need working through
  • Openings found when ceilings come down for a refit
  • Open linear gaps along the top of fire-resisting walls

At a healthcare site like Cygnet Hospital Colchester, 0.7 miles to the south-east of Great Horkesley, new services through compartment walls are a constant, and each needs the specified seal.

Questions to ask before you book

  • Are they CHAS accredited or on Constructionline?
  • Whether primer will be used where the manufacturer specifies it
  • Their public liability cover
  • How they’ll work around occupants

Our contractor checklist

Fire stopping in Great Horkesley: the local picture

Central London is about 51 miles from Great Horkesley. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. 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. Our part stays the same: the specified product, installed to its tested detail.

In a building such as Church of St John, any service penetration through a fire-resisting wall should be sealed to the specified detail. For a unit at a site such as Turner Rise Retail Park (2 miles south-east of Great Horkesley), any new service through a fire-resisting wall should be sealed to the tested detail.

Great Horkesley is about 3 miles north of Colchester, in Essex. Our applicators travel to Great Horkesley for work on service penetrations. 644 places across Essex fall within our area, including Great Horkesley. There’s a separate page for London, about 51 miles away.

Work on service penetrations is covered throughout CO6. Among the streets we cover are Exeter Close, Malvern Way and Keelers Way, and sites on any of them can send details for a fixed quote. If your building is just outside Great Horkesley, we cover Mile End (1 mile south-east), West Bergholt (1 mile south-west), Little Horkesley (2 miles north-west), Wissington (3 miles north-west) and Fordham Heath (3 miles south-west). A short drive away, we cover Colchester (3 miles south), Braintree (14 miles west), Clacton-on-Sea (15 miles south-east), Witham (13 miles south-west), Camulodunum (3 miles south) and Halstead (10 miles west).

Around Great Horkesley

Around Great Horkesley, our work takes us to commercial buildings near The Half Butt Inn and Gilberd School, among other places. For rail, the closest station is Colchester station, roughly 1.9 miles south of the centre. Well-known places in the area include Lion Walk (2.8 miles south) and Colchester Castle (2.8 miles south-east). Open spaces near Great Horkesley include Westhouse Wood.

Map of Great Horkesley © OpenStreetMap contributors

Aftercare for building managers

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Keep general-purpose fillers away from compartment walls
  • Ask which product is in place before decorating
  • File the specified details where the next contractor can find them
  • Put resealing into every M&E and fit-out package

Give the sealant its full cure time before ceilings, boxing or decoration go over it. Some fire-rated sealants accept paint and some don’t, and the data sheet says which.

On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and the work runs in step with the M&E.

Work for main contractors and building owners

When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Great Horkesley can form part of a wider programme.

Accreditations

Trusted. Accredited. Insured.