Essex · England

Fire-rated sealant in Writtle, Essex

Our applicators work in Writtle on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.

  • Ordinary sealant used where a fire-rated product was needed
  • New service routes left unsealed after building work
  • Open gaps behind door architraves

Fire rated sealant for Writtle homes and businesses

Common problems we fix in Writtle

Door frames are a common weak spot. The gap between the frame and the wall is hidden behind the architrave, so it’s easy to leave unsealed when doors are changed.

Signs it’s time to call us include:

  • Ordinary sealant used where a fire-rated product was needed
  • Open holes round services passing through fire walls
  • Door frames with gaps between frame and wall
  • Holes left by a change of layout

Schools such as Writtle Infant School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.

Questions to ask before booking

  • How hidden problems are handled
  • Is VAT in the price?
  • The length of the guarantee
  • Whether all the old sealant comes out first

10 questions to ask before you book

About our fire rated sealant in Writtle

Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment on buildings across Writtle. If you share the list, we can quote for the gaps that need fire-rated sealant. If you have gaps around pipes and cables through fire-resisting walls and ordinary sealant used where a fire-rated product was needed, we can help, whatever the surface.

If you run a pub, café, guest house or shop in or near Writtle, the washrooms and kitchen need the same attention as a big site, and fire-rated sealant around service openings should be restored after new pipes or cables go through.

There’s a 12-month guarantee on every job, large or small.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Writtle (CM1)
Wider area
Essex
Cover
12 months on all our work
Price
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026

Commercial buildings in Writtle

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

Rented homes near Chelmsford station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. If you look after a church, hall or community building such as Church of All Saints, service openings in its walls need the right fire-rated sealant, as in any building.

Writtle is about 3 miles west of Chelmsford, in Essex. Across the CM1 area, we can carry out fire rated sealant at your property. Writtle is one of 644 places in Essex where we work.

We cover every part of CM1 for fire rated sealant. Local streets include Millfields, Well Field and Little Meadow. Other places close to Writtle include Widford (2 miles south-east), Moulsham (2 miles east), Chignall St James (2 miles north), Patching (2 miles north-east) and Chelmsford (3 miles east). We also work in nearby towns such as Basildon (11 miles south), Braintree (12 miles north-east), Harlow (13 miles west), Brentwood (9 miles south-west), Maldon (11 miles east) and Billericay (7 miles south).

Local landmarks in Writtle

In Writtle, that means homes and buildings near Rose And Crown Public House, Hylands School and Central Park, among other places. Writtle’s nearest station is Chelmsford station, about 2.1 miles east of the centre. Other landmarks nearby include Peter Edwards Museum And Library (2 miles east) and Bond Street Chelmsford (2.4 miles east). Not far away are Newland Grove.

Map of Writtle © OpenStreetMap contributors

Why deal with it now?

Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. Homes in smaller places like Writtle can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.

Why book with us

  • An ARBOMaster approved applicator
  • 180+ five-star Google reviews
  • Anti-fungal silicone where joints get wet
  • Over 20 years’ experience

Take a look at our cost guide and our reviews.

Looking after it afterwards

Good habits help new joints last longer. Our tips:

  • Plan fire stopping into any work that goes through walls or floors
  • Take pictures of fire stopping before ceilings or boxing go back
  • Report cracked or damaged seals as soon as you notice them
  • Don’t paint over fire sealant until it has cured

Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.

It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes and the job gets bigger.

How we quote for fire rated sealant

There’s no set price list. The quote depends on:

  • How many areas need sealing
  • How much there is to do
  • Working hours on commercial sites
  • How easy the joints are to reach

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.

Asking for a quote

To help us quote quickly, let us know:

  • Photos by email, if that is easy
  • Where the property is
  • How we’d reach the joints
  • Whether it has been sealed before

For fire rated sealant in Writtle, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

How the job changes by surface

Service penetrations

Service penetrations are where new gaps often appear. We clean out what’s there and reseal to the right depth with backing where the detail needs it.

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first.

Landlord and commercial work in Writtle

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

For anyone letting property in or around Writtle, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.

What happens on the day

There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes a few hours for a handful of gaps, and longer for a whole building in most cases. In a smaller place like Writtle, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Old or unsuitable sealant is cut out and the gap cleaned.
  3. We put in whatever backing or fill the product detail specifies.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. Locations and products are noted so you have them on file.

How to prepare

  • Keep children and pets away from the work area
  • On commercial sites, let us know about site rules
  • Tell us about access, such as stairs, a lift or high-level joints

Ask for a quote

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.

Ask for a quote

Advice

Common questions in Writtle

Do you cover smaller places like Writtle?

Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

I let a flat near Chelmsford station. Can you help?

Yes. We work for landlords and agents as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.

Does someone need to be in?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Will there be a smell?

There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.

Do you take on fire stopping in schools and offices?

Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.

Can I do it myself?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Is it messy?

Not at all. The area is protected while we work and cleaned up afterwards.

What does intumescent mean?

Fire-rated is the broad term for sealants tested for fire stopping. Intumescent types expand when heated, and they’re one option among several. The specification and the tested detail decide which is used.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job