Hampshire · England

Fire-rated sealant in Kings Worthy, Hampshire

Fire rated sealant across Kings Worthy and nearby, with every bit of old sealant taken out first and a 12-month guarantee.

  • Ordinary sealant used where a fire-rated product was needed
  • Door frames with gaps between frame and wall
  • Linear gaps at the head of walls

Trusted fire rated sealant in Kings Worthy

Common questions in Kings Worthy

Will you come out to Kings Worthy?

Yes, Kings Worthy is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Is Kings Worthy in your area for fire rated sealant?

Yes. We work across London and the South East, and Kings Worthy is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.

Do you take out the old sealant first?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Can you give us a record of the work?

Yes. We note each location and the product that went in, so you have it on file.

Do you carry out fire risk assessments?

No. That is for a fire risk assessor, designer or building control. We apply fire-rated sealant to the requirements they set.

Do the sealants smell?

Possibly a little. It fades as the sealant cures, and ventilation helps.

What fire rating will the seal have?

We do not give ratings or certificates for our work. Your specification sets the requirement, and we fit a product whose tested details meet it, recording the locations and products.

Is it messy?

Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.

Fire rated sealant in Kings Worthy, done properly

Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on linear gaps, pipe & cable gaps and service penetrations, and common reasons people get in touch are holes left by a change of layout and gaps where walls meet ceilings or slabs.

For holiday lets, converted business premises or a community building near Kings Worthy, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

Whatever the size of the job, it’s backed by our one-year guarantee.

Where
Kings Worthy (SO23)
Region
Hampshire
Guarantee
One year on every job
Quotes
A clear price before work begins
Telephone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Common problems we fix in Kings Worthy

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

Signs it’s time to call us include:

  • Door frames with gaps between frame and wall
  • Damaged fire sealant left by other trades
  • Gaps where walls meet ceilings or slabs
  • Sealant items on a fire risk assessment action list

For buildings such as Church of St Mary, older buildings that have had new heating or wiring often have service gaps worth checking.

Questions to ask before you book

  • Whether the sealant suits the joint
  • What insurance they hold
  • When the joint can take water or movement
  • The length of the guarantee

10 questions to ask before you book

Commercial buildings in Kings Worthy

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, which is often where open fire-stopping gaps are first noticed. We work to the specification you are given, installing the product to its tested details.

Rented homes near Winchester station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Managing a site like Kings Worthy Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.

Kings Worthy is about 2 miles north of Winchester, in Hampshire. For fire rated sealant in and around Kings Worthy, it’s easy to get a quote: please ring 0345 464 0079 or email us. We cover Hampshire from our Crawley base, Kings Worthy included. Across Hampshire, we cover 683 places, Kings Worthy among them. We also work in Southampton, around 13 miles away.

Postcode districts we cover here for fire rated sealant: SO23. We cover properties on London Road, Church Lane and The Woodlands and the roads around them. Other places close to Kings Worthy include Abbots Worthy (1 mile north-east), Easton (1 mile east), Winnall (2 miles south), Martyr Worthy (2 miles east) and Itchen Abbas (3 miles east). Within a short drive, we also cover Basingstoke (15 miles north-east), Eastleigh (9 miles south), Andover (11 miles north-west), Totton (15 miles south-west), Chandler's Ford (8 miles south-west) and Alton (15 miles east).

Landmarks near Kings Worthy

Locally, jobs take us to homes and businesses close to Henry Beaufort School and The Cart And Horses Public House. The closest station to Kings Worthy is Winchester station, about 1.8 miles south-west. A little further out are St John's Rooms And Chapel (2 miles south) and Winchester Castle (2.1 miles south-west). Green spaces nearby include Winnall Moors and Twyford Down.

Map of Kings Worthy © OpenStreetMap contributors

Landlord and commercial work in Kings Worthy

For anyone letting property in or around Kings Worthy, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

Housing providers, facilities teams and property managers book us too in Kings Worthy and across Hampshire. Several sites can go on one quote.

Surface by surface

Door frames

The gap between a door frame and the wall around it needs sealing as well as the door itself. We seal that gap with a fire-rated sealant suited to the frame and wall.

Masonry and concrete

For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing so the seal has something sound to bond to.

How it works

Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on how many gaps there are. Somewhere like Kings Worthy needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  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.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • Keep children and pets away from the work area
  • Mention any leaks or damp you’ve noticed

How to get a quote

If you are in Kings Worthy and need fire rated sealant, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.

Ask for a quote

Related advice

What sealant work cannot fix

New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:

  • Fire risk assessments, which need a qualified assessor
  • Certifying a building or signing off its fire safety
  • Fire doors that need new seals, closers or hardware

If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.

Joints and surfaces we work on

  • Linear gaps
  • Door frames
  • Service penetrations
  • Pipe & cable gaps
  • Flats & HMOs
  • Plasterboard & masonry

Leave it or put it right?

Leaving a gap until a refurbishment comes round can mean years with it open. Sealing the gap now is a contained job on its own that does not depend on other work. Around Kings Worthy, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

The cost reflects the work involved, not guesswork. That’s why we ask about the job first.

What you get with us

  • More than 20 years in sealant work
  • We leave the area clean and tidy
  • Old sealant always removed completely
  • One-year guarantee on every job

See our cost guide or what customers say.

Should I try it myself first?

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

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 fails, we can still redo it.

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