Fire-rated sealing and fire stopping in Chalton, Hampshire
Fire-rated and intumescent sealing of service penetrations and linear gaps across Chalton, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Service penetrations left open after M&E works
- Fire sealant pulled out of the opening
- Builders’ foam or ordinary silicone in compartment walls
Need fire stopping in Chalton?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
After the work
Once the work is signed off, these steps help:
- Check risers and ceiling voids after each round of works
- Arrange inspection before areas are covered up
- Settle who seals which penetrations at the start of a project
- Treat an open penetration as a priority repair
After every round of M&E works, check that the openings created have been sealed. A short check at the end of each job saves a long hunt later.
Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned, and the work runs in step with the M&E.
How we handle fire stopping in Chalton
It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance. If you’re dealing with fire seals cut back for extra cables and never reinstated and fire stopping installed outside its tested range, we can put it right, on cable penetrations, small duct penetrations where the tested detail allows and linear gaps at wall heads alike. Searching for sealant specialists in Chalton? We’ve been sealing commercial buildings since 2005.
Rural conversions around Chalton can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Where
- Chalton (PO8)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
General trades versus a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Leave it or put it right?
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Halls, stores and units around places like Chalton may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
What a job costs comes down to the quantity of joints, how much old material needs removing and how the joints are reached. Call for a quote when you’re ready.
Why clients in Chalton choose us
- 12 months’ guarantee on every job
- Constructionline member for supplier checks
- Sealing commercial buildings since 2005
- Products installed to the manufacturer’s instructions
Take a look at our cost guide or how we’re accredited.
Your questions answered
Is Chalton too far out for you?
No. Small places get the same service as large ones. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Do you take on work at healthcare sites like Petersfield Community Hospital?
Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Will fire-rated sealant work on every penetration?
No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed.
How many days will you need on site?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Can weather delay the job?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Nearby places to Chalton
What else we do in Chalton
Compartments and services around Chalton
Chalton is about 54 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls, and the gaps need sealing with the specified product. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
Older community buildings such as Church of St Michael that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Large healthcare estates like Petersfield Community Hospital, 4.7 miles to the north of Chalton, change their services often, so penetration seals are worth checking after M&E work. For a building at a site such as Enterprise Industrial Estate, 2.1 miles south-west of Chalton, a check of penetration seals after each fit-out is good practice.
Chalton is about 3 miles north-east of Horndean, in Hampshire. Businesses, contractors and managing agents in Chalton use us for work on service penetrations. We work across 723 places in Hampshire, large and small. Sites around Portsmouth have their own page, roughly 10 miles from Chalton.
Business premises anywhere in PO8 are within our area. Sites close to Chalton are covered too, including Blendworth (2 miles south-west), Buriton (3 miles north), Forestside (3 miles south-east), West Marden (3 miles south-east) and Weston (4 miles north). Further afield, our area takes in Gosport (12 miles south-west), Havant (5 miles south), Fareham (12 miles south-west), Horndean (3 miles south-west), Alton (15 miles north) and Hedge End (15 miles west).
Around Chalton
In Chalton, that means premises near Ditcham Park, among other places. For rail, the closest station is Rowlands Castle station, about 3.1 miles south of the centre. A little further out are Clanfield Earthwork (1.2 miles north-west) and Petersfield Community Hospital (4.7 miles north). For a walk, there’s Windmill Hill.
What we can’t put right
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Gaps in walls that were never built as compartment walls
- Fire risk assessments, a job for a competent assessor
- Deciding what a wall or floor needs, which belongs to the designer
If you are not sure, just call 01277 525 020 or email us and we will give you a straight answer.
Surfaces we seal
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Service gaps in risers
From enquiry to sign-off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. If others near Chalton need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Send your site hours and access windows
- Tell staff and tenants when we will be in
- Send asbestos survey details if the building is pre-2000
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Related advice
Quoting for work in Chalton
Quotes vary with the job. Expect it to depend on:
- How much existing material needs removing
- Joint width, depth and condition
- Phasing around occupants
- The site’s rules and procedures
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
What we need to price the job
To price the job accurately, we need to understand the site. Useful things to include:
- Whether an asbestos survey exists
- Any specification or named product
- How the joints are reached, and at what height
- Your programme or deadline
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or send photos by email with what you know.