
Fire-rated sealing and fire stopping in Loxwood, West Sussex
Fire-rated and intumescent sealing of service penetrations and linear gaps in Loxwood and across West Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Fire seals cut back for extra cables and never reinstated
- Non-fire-rated filler around services
- Hidden openings found during inspections
Fire stopping in Loxwood
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What sets the cost
There’s no standard rate for sealant work, because every site is different. What we take into account:
- The site’s rules and procedures
- The total length or number of joints
- The size and state of each joint
- Whether old sealant has to be cut out first
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Before you send an enquiry
To price the job accurately, we need to understand the site. Send us:
- Asbestos survey details if the building is older
- The product your specification calls for
- Approximate linear metres or a joint schedule
- A wide shot and a close-up of the area
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or ring 01277 525 020 or use the quote form if you’d rather talk the job through.
Fire stopping in Loxwood
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, often unnoticed. We close the openings listed on your schedule, using the specified sealant and detail. We work on cable penetrations, small duct penetrations where the tested detail allows and linear gaps at wall heads, and what we’re called in for most is hidden openings found during inspections and head-of-wall gaps with no fire seal. One point of contact handles commercial sealant work in Loxwood from the first photographs to the final walk-round, for single jobs and planned programmes alike.
For a smaller site near Loxwood, we plan to do all the penetrations in one go, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

- Location
- Loxwood (RH14)
- Wider area
- West Sussex
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Aftercare for building managers
Once the work is signed off, a little attention goes a long way:
- Settle who seals which penetrations at the start of a project
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Check with the data sheet before painting over fire sealant
- Keep product data and details in the fire safety file
Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original, or a new specification from the designer.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.
What happens if it’s left?
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme. Around Loxwood, it’s better to renew all the failing joints at once. Send photographs of each area and we’ll quote for the lot.
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Why choose Mastic Doctor in Loxwood
- Health and safety: CHAS accredited
- 12 months’ guarantee on every job
- One contact handling all your sites
- Specification-led, product-correct work
Take a look at what affects the cost and how we’re accredited.
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Issuing fire ratings or certificates for seals
- Reviewing a building’s overall fire safety
- Openings that need collars, wraps, batts or boards rather than sealant
If you are not sure, just call the office on 01277 525 020 or email us and we will give you a straight answer before you book.
What we seal
- Pipe penetrations
- Cable penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Joints between fire-resisting walls and floors
On site: what to expect
On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself usually taking a single visit for a short list of penetrations, or a phased programme for a whole building. Jobs in and around smaller places like Loxwood are normally planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Getting the site ready
- Have the specification and drawings to hand
- Let building users know which areas are affected
- Send your site hours and access windows
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Advice
Places near Loxwood
What else we do in Loxwood
Fire-rated sealing for Loxwood buildings
At about 34 miles from central London, Loxwood is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting 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. Either way, we install the specified product to its tested detail.
For a school such as Loxwood Primary School, penetration sealing fits best at the end of the summer works. Older community buildings such as St John the Baptist that have been rewired or given new heating can have service gaps through walls worth checking against the specification.
Loxwood is about 9 miles west of Horsham, in West Sussex. Any commercial site in Loxwood is covered, whether it’s a single job or part of a planned programme. Loxwood is one of 373 places we cover in West Sussex for service penetrations. Brighton is covered too, some 24 miles away.
We cover the RH14 postcode districts for service penetrations. For a building on High Street, Pond Close and Oak Grove or nearby, we can quote for service penetrations. If your building is just outside Loxwood, we cover Ifold (1 mile south-west), Alfold Bars (1 mile north), Alfold (1 mile north), Plaistow (2 miles west) and Durfold Wood (3 miles west). Further afield, our area takes in Crawley (14 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (11 miles south), Billingshurst (5 miles south-east) and Bewbush (13 miles east).
Around Loxwood
Not far away are Shillinglee Lake.
Different surfaces, different methods
Metal pipes
Heat travels along metal pipework, and some details add wrapping or a set length of insulation. If the detail needs something beyond sealant, we tell you.
Linear joints
Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.
Common questions from Loxwood clients
Do you design the fire stopping for buildings in Loxwood?
No. Fire-stopping design and sign-off belong to the designer, principal designer, fire engineer or building control. Our part is installing the specified product to its tested detail, and telling you if the detail calls for something other than sealant.
Is a smaller place like Loxwood outside your area?
No. Places such as Loxwood are covered as much as the big towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
How many days will you need on site?
We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.
Can you fit around our working hours?
We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Can you work while the building is occupied?
Usually, yes. We phase the work so most of the building stays in use.
Are you insured?
Yes. Our insurance certificate can be sent alongside the quote.
Can you handle several sites?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.