West Sussex · England
Fire Rated Sealant in Chichester
Problem with your fire-stopping gaps in Chichester? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Seals cut through by electricians, plumbers or data installers
- Standard silicone or caulk in a fire-stopping gap
- Open gaps behind door architraves
Common questions in Chichester
Do you work in hotels near Chichester?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
Can you do fire rated sealant in Chichester?
Yes. Our work covers London and the South East, and Chichester is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Can ordinary silicone be used in a fire-stopping gap?
No. Standard sealants aren’t made or tested to stop fire. If it’s been used, we remove it and use the right product.
Can you fill the gap behind a fire door frame?
Yes. Gaps behind architraves are a common job for us. The door and its fittings are a separate job for a door specialist.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you offer different sealant colours?
In most cases you can choose. We will explain which colours are available and agree one before any work starts.
How long does fire rated sealant take?
That depends on the amount of work, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We’ll give you a better idea when we quote.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Fire rated sealant in Chichester
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over. If you have fire stopping disturbed by later work and new service routes left unsealed after building work, we can put it right, whatever the surface.
Washrooms in busy buildings wear their sealant out faster than a bathroom at home, while fire-rated sealant has to be made good whenever new pipes or cables go through. For a building in Chichester, we plan timings around how it’s used.
All our work is covered by our one-year guarantee, wherever you are in West Sussex.
- Place
- Chichester (PO19, PO20, PO18, PO10)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Fire rated sealant around Chichester
There are hotels and other places to stay in and around Chichester. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details.
If you let a flat or house near Chichester station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Managing a site like Lancastrian Infant School? Then service openings in fire-resisting walls need checking after any refurbishment. Community buildings like Church of St Paul are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Chichester is about 27 miles east of Southampton, in West Sussex. Jobs in Chichester get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Chichester is one of 371 places in West Sussex we cover for fire rated sealant. There’s also a page for Portsmouth, about 13 miles away.
Here we cover the PO19, PO20, PO18 and PO10 postcode area for fire rated sealant. Whether your property is on St Martin's Square, Market Road and Old Market Avenue or anywhere close by, our applicators can take on the job. Being close to the A27 and A259, Chichester is simple for us to get to. We also cover Portfield (1 mile east), Westhampnett (1 mile north-east), Shopwyke (2 miles east), Maudlin (2 miles north-east) and East Lavant (2 miles north). Within a short drive, we also cover Bognor Regis (5 miles south-east), Selsey (7 miles south), Littlehampton (11 miles east), Emsworth (7 miles west), Rustington (12 miles east) and Storrington (15 miles east). As one of the bigger places in West Sussex, Chichester has every kind of property, from flats to offices.
What’s near Chichester
We work in homes and buildings around Chichester High School For Girls, George and Dragon Inn and Central C of E Junior School, among other places. For rail, the closest station is Chichester station, about 0.6 miles south. Other landmarks nearby include Novium Museum (under half a mile south) and Chichester Castle (within half a mile east). For a walk, there’s Stoke Down and Kingley Vale National Nature Reserve.
Why deal with it now?
Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now gives you evidence that the item was dealt with. In a family home in Chichester, a failed seal around a bath or a frame lets water into places you cannot see, such as under the floor, behind a panel or into a wall. Left alone, that means rot, damp and a bigger repair.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why choose Mr Mastic in Chichester
- Arbo and Everbuild products
- More than 20 years in sealant work
- A 12-month guarantee on all work
- Old sealant always removed completely
What the job involves on each 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.
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Gaps that are too big for sealant alone need a different detail, and we’ll tell you.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Photograph sealed gaps before they’re covered up
- Make resealing part of every contractor’s brief
- Ask which product was used before you paint
- Include hidden areas like risers in routine checks
Avoid covering a sealed gap with anything that isn’t part of the tested detail. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole.
When it is not the sealant
It helps to know what we cannot do too:
- Openings too large for sealant, which need batts, boards or another system
- Sign-off of the building, which sits with building control or your assessor
- Problems with the door itself rather than the gap around the frame
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Plasterboard & masonry
- Flats & HMOs
- Linear gaps
- Service penetrations
- Pipe & cable gaps
- Door frames
Also near Chichester
Other services in Chichester
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How the visit works
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes anything from a few hours to several days, depending on how many gaps there are in most cases. Parking in a town like Chichester is generally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Mention any tricky access
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
Get a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
What affects the quote in Chichester
Every job gets its own quote. These are the things that affect it:
- When we can work, for business premises
- The number and length of the joints
- Whether there’s mould to deal with
- Which sealant suits the joint
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- A few photos by email, if you can
- Whether it’s a home or a business
- Whether it has been sealed before
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or drop us an email and describe the job.