Hampshire · England

Fire-rated sealant in Nob's Crook, Hampshire

We cover Nob's Crook for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Gaps where walls meet ceilings or slabs
  • New service routes left unsealed after building work
  • Door frames with gaps between frame and wall

Need fire rated sealant in Nob's Crook?

How to look after the new joints

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Keep pictures of seals that will be hidden
  • Plan fire stopping into any work that goes through walls or floors
  • Tell trades working in the building that fire seals must be put back
  • Store the list of sealed gaps with your building paperwork

Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.

Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the list grows.

Fire rated sealant in Nob's Crook

Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. Anything unsuitable comes out first and reseal with a fire-rated product tested for that kind of gap. If you have holes left by a change of layout and gaps where walls meet ceilings or slabs, we can put it right, whatever the surface.

In a village or hamlet like Nob's Crook, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.

All our work comes with our one-year guarantee, wherever you are in Hampshire.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Nob's Crook (SO21)
Wider area
Hampshire
Cover
A year, on every job
Quotes
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026

Why deal with it now?

An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. In a small place like Nob's Crook, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.

Why Nob's Crook customers choose us

  • Trusted Arbo and Everbuild sealants
  • Domestic, commercial and hotel work
  • One-year guarantee on every job
  • Sanitary silicone with an anti-fungal additive in wet areas

Take a look at what affects the cost and what customers say.

Different surfaces, different methods

Linear gaps

A linear joint may need to allow for movement as well as fire. The product and depth are chosen to suit both, following the tested detail.

Flats and HMOs

Working in occupied flats needs some planning. Access to flats and common areas is agreed in advance.

What affects the cost of fire rated sealant

Some jobs are bigger than they look, and some smaller. The main factors:

  • The number and length of the joints
  • How many areas need sealing
  • Working hours on commercial sites
  • The old material and how stubborn it is

What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.

Helping us quote

What to tell us when you ask for a quote:

  • Access, such as stairs, a lift or height
  • The type of property
  • Roughly how big the job is
  • A few pictures by email, if you can

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.

What we do, step by step

On the day, we look over the joints with you first. Surfaces next to the work are protected before any work begins. The work normally takes from a few hours to a few days, depending on the number of gaps and the access. In a small place like Nob's Crook, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start with the survey or action list, checking the size and surfaces of every gap.
  2. Anything that isn’t 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. Finally, we list where we worked and what we used, for your records.

How to prepare

  • Let us know if you’ve seen damp or leaks
  • Tell us about any previous sealing or DIY attempts
  • Where the joints are inside, avoid wetting them before we arrive

Get a quote

Want a quote for fire rated sealant? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Related advice

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, 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.

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

For landlords and businesses

We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Commercial buildings in Nob's Crook

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 work to the specification you’re given, installing the product to its tested details.

If you look after a building such as Colden Common Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices. For landlords with property near Eastleigh station, any gap left by new services in shared walls should be closed with a fire-rated product. If you look after a church, hall or community building such as Church of the Holy Trinity, older buildings that have had new heating or wiring often have service gaps worth checking.

Nob's Crook is about 2 miles north-east of Eastleigh, in Hampshire. Every kind of property in Nob's Crook can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. We cover 683 towns and villages across Hampshire, large and small. Southampton is on our list too, about 6 miles from Nob's Crook.

Here we cover the SO21 postcode area for fire rated sealant. If you are just outside Nob's Crook, we cover Fisher's Pond (1 mile south-east), Colden Common (1 mile north-west), Brambridge (1 mile north-west), Lord's Wood (1 mile west) and Crowdhill (1 mile south-east). Further out, we also cover Winchester (5 miles north), Gosport (15 miles south-east), Fareham (11 miles south-east), Horndean (14 miles south-east), Totton (10 miles south-west) and Chandler's Ford (3 miles west).

Landmarks near Nob's Crook

Locally, jobs take us to homes and businesses close to Wyvern Technology College and The Fox & Hounds pub and the streets around them. The closest station to Nob's Crook is Eastleigh station, about 2.2 miles south-west of the centre. Other landmarks nearby include Wolvesey Castle (4.8 miles north) and Moorgreen Hospital (4.2 miles south). Open spaces near Nob's Crook include Twyford Down and Shawford Down.

Map of Nob's Crook © OpenStreetMap contributors

Nob's Crook questions

Will you come out to Nob's Crook?

Yes, Nob's Crook is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

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

Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.

Do you do fire sealant around door frames?

Yes. We seal the gap between the frame and the wall with a suitable fire-rated product following the tested details. The door leaf and its hardware need a door specialist.

Where do you work from?

We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

How long does the job take?

As a guide, most jobs take from a few hours to a few days, depending on the number of gaps and the access. Bigger jobs take longer, and we will say how long yours will take.

Can you do several jobs on one visit?

Yes, we can. More than one area can go on one quote.

Do you offer different sealant colours?

Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before work begins.

What fire rating will the seal have?

We don’t issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves; we install to those details and record what we did.

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