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

Fire stopping in Alresford

Fire-rated and intumescent sealing of service penetrations and linear gaps in Alresford. CHAS accredited and fully insured, with a 12-month guarantee.

  • Head-of-wall gaps with no fire seal
  • Snag lists that include open service penetrations
  • Openings found when ceilings come down for a refit
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Send details
Tell us about the site, with photos if you have them.
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Get a quote
A fixed price, with what’s included set out clearly.
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We seal
CSCS-carded applicators, the right product for each joint.
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Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Need fire stopping in Alresford?

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

How we handle fire stopping in Alresford

On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, give us a call on 01277 525 020 or email the details over with the schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we will confirm with the quote. We work on pipe penetrations, joints between fire-resisting walls and floors and linear gaps at wall heads, and what we are called in for most is fire-stopping items raised at inspection or handover and seals that don’t match their tested detail. One point of contact handles commercial sealant work in Alresford from the first photographs to the final walk-round, whether it’s one building or several.

Around Alresford, 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.

Our workmanship is guaranteed for 12 months, in Alresford as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Location
Alresford (CO7)
Wider area
Essex
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What we are called out for in Alresford

Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped, and the repair is often skipped.

Site and facilities staff are often the first to spot these:

  • Fire seals cut back for extra cables and never reinstated
  • Fire-rated sealant that has cracked or shrunk back
  • Builders’ foam or ordinary silicone in compartment walls
  • Service penetrations left open after M&E works

Campus buildings at universities such as University of Essex (2.7 miles north-west of Alresford) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified.

Questions to ask before you book

  • How joint depth will be controlled
  • Which product they’ll use, and why it suits the joint
  • Proof of insurance
  • Do they follow the manufacturer’s priming guidance?

Our contractor checklist

Questions about Alresford

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

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.

Is Alresford off your patch?

No. Places such as Alresford are covered as much as the big towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Can staff carry on working while you are here?

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

Do you take on multi-site work?

Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.

How long do sealant joints last?

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 any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

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.

Looking after the joints

Once the work is signed off, these steps help:

  • Check with the data sheet before painting over fire sealant
  • Ask the designer to confirm details early on refits
  • Make fire stopping part of every scope that crosses a fire-resisting wall
  • Keep general-purpose fillers away from compartment walls

During planned inspections, look at seals in risers, cupboards and voids. Look for cracks, unsealed new cables and gaps that have been enlarged and get them dealt with.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open.

Site staff or a sealant specialist?

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

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. That’s why many clients bring in a specialist from the beginning.

Honest limits

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Approving the work on behalf of building control
  • Large openings beyond what any sealant detail covers
  • Reviewing a building’s overall fire safety

If you are not sure, just give us a call on 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.

Where we work in Alresford

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

Penetration seals near Alresford

Two care or nursing homes sit less than 2 miles from Alresford. Where new services have gone through compartment walls in a care setting, the gaps need the specified product. At about 53 miles from central London, Alresford is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Schools such as Alresford Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. Offices at parks like Wivenhoe Business Centre, 1.6 miles west of Alresford, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Alresford is about 5 miles south-east of Colchester, in Essex. We cover commercial sites throughout Alresford, whether it’s a single job or part of a planned programme. Our Essex coverage takes in 644 places, large and small. There’s a separate page for London, roughly 53 miles from Alresford.

Work on service penetrations is covered throughout CO7, whatever the building. Buildings on Station Road, Church Road and Cox Road are within our area. If your building is just outside Alresford, we cover Wivenhoe (2 miles west), Elmstead (2 miles north-west), Wivenhoe Quay (2 miles west), Wivenhoe Cross (2 miles north-west) and High Park Corner (2 miles west). Nearby towns on our patch include Colchester (5 miles north-west), Clacton-on-Sea (8 miles south-east), Harwich (13 miles north-east), Camulodunum (6 miles west), Heybridge (15 miles south-west) and Greenstead (4 miles north-west).

Landmarks near Alresford

Recent enquiries here include premises near The Pointer pub. There’s a railway station in Alresford itself: Alresford station. A little further out are Wivenhoe Chapel Museum (1.5 miles west) and Colchester Castle (4.7 miles north-west). Green spaces nearby include Cockaynes Wood.

Map of Alresford © OpenStreetMap contributors

Why deal with it now?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Small buildings around Alresford suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

Why clients in Alresford choose us

  • Work to your specification and the manufacturer’s guidance
  • Joints cleaned back to sound surfaces
  • Fully insured, including public liability cover
  • Workmanship guaranteed for 12 months

Take a look at what affects the cost and our accreditations.

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 Alresford can be grouped on one trip. Mention the building’s opening times and we’ll work within them.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  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. If an opening needs something other than sealant, we tell you instead of improvising.

What we need from you

  • Send asbestos survey details if the building is pre-2000
  • Send your site hours and access windows
  • Flag any permit to work we will need

Quotes

To get a fixed quote, give us a call on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.

Get a price

Advice

Accreditations

Trusted. Accredited. Insured.