Hampshire · England
Fire-rated sealant in Sherborne St John, Hampshire
We cover Sherborne St John for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Door frames with gaps between frame and wall
- Gaps flagged on a fire risk assessment
- Damaged fire sealant left by other trades
Fire rated sealant in Sherborne St John, done properly
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. If you have cracked or shrunken fire-rated sealant and ordinary sealant used where a fire-rated product was needed, we can put it right, on door frames, linear gaps and pipe & cable gaps alike.
Work in a small place like Sherborne St John is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Location
- Sherborne St John (RG24)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. We agree access to each flat and the common parts before we start to keep disruption down.
Masonry and concrete
Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before the sealant goes in.
DIY sealant or a professional job?
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.
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.
What happens on the day
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like Sherborne St John, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used for your files.
How to prepare
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
Ask for a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job.
Related advice
Sherborne St John questions
Is Sherborne St John within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do fire rated sealant in Sherborne St John?
Yes, Sherborne St John is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
What does fire rated sealant cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or email us and let us know what needs doing and where.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you guarantee your work?
Yes, always. There’s a 12-month guarantee on every job.
What’s the difference between intumescent and fire-rated sealant?
An intumescent sealant expands when it gets hot. Intumescent sealants are one kind of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
Where do you work from?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Workplaces and buildings in Sherborne St John
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.
Letting a property close to Basingstoke station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Community buildings like Church of St. Andrew are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. Managing a site like Sherborne St John Church of England Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Sherborne St John is about 2 miles north of Basingstoke, in Hampshire. Anywhere in RG24, we cover fire rated sealant for homes and businesses. We cover 683 towns and villages across Hampshire. There’s also a page for Reading, about 12 miles away.
Every address in RG24 is covered for fire rated sealant, from the main roads to the quietest streets. We cover properties on Cranes Road, Bourne Field and Church Path. Nearby, we also carry out fire rated sealant in Rooksdown (1 mile south-west), Winklebury (2 miles south), Basingstoke (2 miles south), Worting (3 miles south-west) and South Ham (3 miles south). Further out, we also cover Farnborough (15 miles east), Fleet (12 miles east), Aldershot (15 miles east), Alton (12 miles south-east), Yateley (12 miles east) and Tadley (4 miles north).
What’s near Sherborne St John
We work in homes and buildings around Everest Community Academy and the streets around them. For rail, the closest station is Basingstoke station, roughly 2.1 miles south-east. Other landmarks nearby include Basing House (3.1 miles south-east) and Basingstoke and North Hampshire Hospital (1.1 miles south). Not far away are Daneshill Park Woods.
Why deal with it now?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. Where a wall is exposed, as many are in small places like Sherborne St John, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why us?
- 12-month guarantee on every job
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
- We never seal over old sealant
See our cost guide and our reviews.
Quotes for fire rated sealant in Sherborne St John
The price is agreed before any work begins. It’s based on:
- The number of rooms or windows
- The amount of work
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- Any previous sealing or DIY work
- What’s wrong with the joints now
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’s easy.
What sealant work can’t fix
In fairness, some problems need a different trade:
- Deciding what fire stopping a building needs
- Sign-off of the building, which sits with building control or your assessor
- Doors that are not fire doors in the first place
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Sherborne St John
- Pipe & cable gaps
- Door frames
- Flats & HMOs
- Service penetrations
- Plasterboard & masonry
- Linear gaps
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Do not paint over fire sealant until it has cured
- Photograph sealed gaps before they’re covered up
- Plan fire stopping into any work that goes through walls or floors
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint, so ask us which we used.
Open gaps do not only matter in a fire: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.
