Essex · England

Netteswell Fire Rated Sealant

Fire rated sealant in Netteswell from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Cracked or shrunken fire-rated sealant
  • Unsealed gaps where pipes and cables go through a wall
  • Linear gaps at the head of walls

Book fire rated sealant in Netteswell

When to call us in Netteswell

Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.

Keep an eye out for any of the following:

  • Gaps filled with a product that is not fire-rated
  • Joints picked up in a fire-stopping survey
  • Open holes round services passing through fire walls
  • Cracked or shrunken fire-rated sealant

Rented homes near Harlow Town station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

What your quote should include

  • Whether the sealant suits the joint
  • Is the old sealant removed completely?
  • Whether VAT is included
  • Who does the work, and how experienced they are

Our hiring checklist

Fire rated sealant in Netteswell, done properly

Bigger jobs can be worked through in stages, flat by flat or floor by floor. It gives you a list to keep with the building’s fire safety documents. Common call-outs are for gaps filled with a product that isn’t fire-rated and gaps where walls meet ceilings or slabs, across flats & HMOs, linear gaps and service penetrations.

Around a place like Netteswell, halls, schools and small businesses all have washrooms and kitchens used by many people. Sealant and fire-rated joints there matter as much as in any larger building.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Netteswell (CM20, CM18, CM19)
Wider area
Essex
Cover
12 months on all our work
Quote
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026

What affects the quote in Netteswell

We quote each job individually. This is what makes a difference:

  • The product the joint needs
  • Access and height
  • How many rooms, windows or areas are involved
  • Any mould that needs treating

We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or send us an email and we will talk you through it.

What we need to know

Photos help, but a description is a good start. Try to tell us:

  • Whether it’s a home or a business
  • Pictures of the joints, sent by email
  • Where the property is
  • What the problem is, such as mould, gaps, leaks or cracking

Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will come back to you with a quote.

Can I do it myself?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

How to look after the new joints

Aftercare is simple:

  • Tell trades working in the building that fire seals must be put back
  • Ask which product was used before you paint
  • Flag any open gap you spot round a pipe or cable
  • Include hidden areas like risers in routine checks

Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some can’t, so ask us which we used.

Open gaps do not only matter in a fire: they also let noise, draughts and sometimes pests through. Sealing them early helps on every front.

How the visit works

The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job normally takes anything from a few hours to several days, depending on how many gaps there are, and we explain the cure time before we leave. In a smaller place like Netteswell, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. Anything that is not fit for the job comes out, and the gap is cleaned.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. We record the locations and products used for your records.

Preparing for the visit

  • Mention if the joints have been sealed before
  • Mention any sign-in or site rules at work premises
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

We do not publish a price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.

Get a quick quote

Advice

FAQs for Netteswell

Can you do fire rated sealant in Netteswell?

Yes. Our work covers London and the South East, and Netteswell is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.

Is Netteswell within the area you cover?

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

What fire rating will the seal have?

Ratings and certification sit with the product’s test evidence and whoever specified the work. Our part is installing the specified product to its tested details and giving you a record of where it went.

How do I get a quote for fire rated sealant in Netteswell?

We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.

Are you insured?

Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.

Do you take out the old sealant first?

Yes. All of the old material is cut out and the joint cleaned.

What does intumescent mean?

Intumescent means it swells when heated. Intumescent sealants are one kind of fire-rated sealant; which product suits depends on the gap, the substrate and the service.

Do I have to be there?

If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.

Commercial buildings in Netteswell

Netteswell is part of Harlow, one of the post-war new towns. Like the other new towns, Harlow was planned with its own areas for industry and business, so workplaces sit close to the homes. Each has washrooms, kitchens and fire-rated joints to keep in order. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, 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.

For buildings such as St Andrew's Methodist Church, older buildings that have had new heating or wiring often have service gaps worth checking. Managing a site like Freshwaters Primary Academy? Then fire-stopping around service openings should be restored whenever new services go in.

Netteswell is about 1 mile west of Harlow, in Essex. Every kind of property in Netteswell can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Our Essex coverage runs to 644 places, Netteswell among them. Chelmsford is on our list too, around 16 miles away.

Here we cover the CM20, CM18 and CM19 postcode area for fire rated sealant. Whether your property is on Park Lane, School Lane and Maddox Road or a nearby road, we can help. Main roads around Netteswell include the A1019, so getting to you is simple. Neighbouring places we cover for fire rated sealant include Harlow (1 mile east), Mark Hall South (1 mile east), Mark Hall North (1 mile north-east), Latton (1 mile south-east) and Bush Fair (1 mile south). Larger places within reach include Brentwood (13 miles south-east), Loughton (9 miles south), Waltham Abbey (7 miles south-west), Great Dunmow (13 miles north-east), Epping (5 miles south) and Stansted Mountfitchet (10 miles north-east).

Around Netteswell

Around Netteswell, our work takes us to homes and buildings near Brays Grove, BMAT STEM Academy and Garden Tiger pub, among other places. The closest station to Netteswell is Harlow Town station, roughly 0.8 miles north-west of the centre. A little further out are Harlow Mill (1.6 miles north-east) and Princess Alexandra Hospital (0.8 miles west). Open spaces near Netteswell include Hunsdon Mead.

Map of Netteswell © OpenStreetMap contributors

Surface by surface

Flats and HMOs

In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We seal the gaps your assessor has identified room by room.

Plasterboard walls

Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach.

Honest limits

We won’t take on work that will not last, so these are the limits:

  • Issuing a fire rating or certificate for a building
  • Big openings where sealant alone isn’t the tested solution
  • Deciding what fire stopping a building needs

If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.

Where we work in Netteswell

  • Door frames
  • Pipe & cable gaps
  • Flats & HMOs
  • Linear gaps
  • Plasterboard & masonry
  • Service penetrations
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job