West Sussex · England
Fire Rated Sealant in Langley Green
Fire-stopping gaps in Langley Green need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Door frames with gaps between frame and wall
- Gaps where walls meet ceilings or slabs
- Joints picked up in a fire-stopping survey
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Problems with the door itself rather than the gap around the frame
- Big openings where sealant alone is not the tested solution
- Fire risk assessments, which need a qualified assessor
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Pipe & cable gaps
- Service penetrations
- Plasterboard & masonry
- Linear gaps
- Flats & HMOs
- Door frames
Fire rated sealant for homes and businesses in Langley Green
Fire stopping only performs as intended if it’s done to the detail: the right depth, the right backing and the right product for the substrate. That detail is what we take care over. We work on plasterboard & masonry, pipe & cable gaps and service penetrations, and the jobs we see most are new service routes left unsealed after building work and gaps filled with a product that isn’t fire-rated.
Commercial work around a smaller place like Langley Green generally means a pub, a shop, a school or small business units rather than office blocks. Each needs the same care with its sealant as any larger building.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.

- Location
- Langley Green (RH11, RH10)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
To keep the joints looking good and working properly:
- Allow for resealing whenever new services are run
- Do not paint over fire sealant until it has cured
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Report cracked or damaged seals as soon as you notice them
Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some can’t, so ask us which we used.
An open gap is not only a fire issue: noise, draughts and even pests can come through too. Sealing them early helps on every front.
Quotes for fire rated sealant in Langley Green
You’ll get a clear quote before work begins. It takes into account:
- The product the joint needs
- Working hours on commercial sites
- The old material and how stubborn it is
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
- Photos by email, if that’s easy
If you’re in Langley Green and need fire rated sealant, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Should I try it myself first?
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.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What happens if it’s left?
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the work involved is often modest. Around Langley Green, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- Rated 4.9 stars on Google
- Trusted Arbo and Everbuild sealants
- Fully insured
- Old sealant always removed completely
See what affects the cost and our reviews.
Your questions about fire rated sealant in Langley Green
Can you help a landlord with a rental near Crawley station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Is Langley Green within the area you cover?
Yes. Langley Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you carry out fire risk assessments?
No. That is for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Where do you work from?
Mr Mastic is based in Crawley. We cover Langley Green and the rest of West Sussex, along with the rest of our area.
Do you guarantee your work?
Yes, always. Each job is guaranteed for twelve months, large or small.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Also near Langley Green
What else we do in Langley Green
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of gaps, and longer for a whole building. In a smaller place like Langley Green, 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.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details.
Advice
Landlords, agents and businesses in Langley Green
If you manage several properties in or around Langley Green, several properties can be quoted together. Send us the addresses and the work at each.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Fire rated sealant in Langley Green: local notes
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 are given, installing the product to its tested details. Crawley, which Langley Green is part of, is one of England’s post-war new towns. Crawley was planned with its own industrial and business areas, so there are offices, units and workplaces not far from home. Their washrooms, kitchens and fire-rated joints need the same upkeep as anywhere.
For buildings such as Voice of Deliverance Full Gospel Church of God, older buildings that have had new heating or wiring often have service gaps worth checking. For landlords with property near Crawley station, any gap left by new services in shared walls should be closed with a fire-rated product. For site and facilities teams at buildings such as Langley Green Primary, gaps opened by contractors for new cabling are a common finding in schools and offices.
Langley Green is about 1 mile north of Crawley, in West Sussex. Our applicators cover fire rated sealant for homes and businesses in Langley Green. Across West Sussex, we cover 371 places, and Langley Green is one of them.
Every address in RH11 and RH10 is within our area for fire rated sealant. Whether your property is on London Road, Cherry Lane and Dobson Road or anywhere close by, we can help. Close by, we work in West Green (1 mile south), Crawley (1 mile south), Three Bridges (2 miles south-east), Southgate (2 miles south) and Forge Wood (2 miles east). Within a short drive, we also cover Horsham (7 miles south-west), Haywards Heath (10 miles south-east), Burgess Hill (12 miles south), East Grinstead (8 miles east), Broadfield (3 miles south) and Billingshurst (14 miles south-west).
Around Langley Green
Locally, jobs take us to homes and businesses close to Dr Samuel Johnson pub, Central Sussex College and Hazelwick School. The closest station to Langley Green is Crawley station, roughly 1.4 miles south of the centre. Well-known places in the area include Crawley Museum (1 mile south) and Langley Green Hospital (under half a mile south). Green spaces nearby include Tilgate Lake.
