Fire-rated sealing and fire stopping in California, Wokingham
Fire-rated and intumescent sealing of service penetrations and linear gaps across California, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Snag lists that include open service penetrations
- Improvised or mixed-product fire seals
- Non-fire-rated filler around services
Fire stopping for businesses in California
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in California
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints and the results are classified to BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. So our job is to reproduce that arrangement faithfully. If you are dealing with openings left by services added after handover and seals disturbed by maintenance and left open, we can put it right, on joints between fire-resisting walls and floors, cable penetrations and linear gaps at wall heads alike. Most enquiries from California start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
For a smaller site near California, we plan to do all the penetrations in one go, so send the specification and photos first. Design and sign-off belong to the designer or building control; we install what’s specified.
Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Place
- California (RG40)
- Region
- Wokingham
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Where services cross fire walls in California
Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. We install whatever has been specified, to the product’s tested detail. At about 35 miles from central London, California is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls; the gaps need the specified seal.
In a school such as Gorse Ride Junior School, fire-rated sealant goes in around service penetrations where it is specified. Halls and meeting rooms at places like Church of St James sometimes gain new services, and any compartment wall crossed needs the specified seal. At a healthcare site like Wokingham Hospital, 2.6 miles to the north-east of California, new services through compartment walls are a constant, and each needs the specified seal.
California is about 3 miles south-west of Wokingham, in Wokingham. If you’re looking for fire stopping in California, we can help. 42 places across Wokingham fall within our area, California among them. For work in that direction, see our Reading page (7 miles or so).
Commercial sites across RG40 are covered for service penetrations. Among the streets we cover are Warren Lane, White Horse Lane and Fernbank, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Arborfield Garrison (1 mile west), Finchampstead (1 mile south-east), Barkham (1 mile north), Langley Common (1 mile north-west) and Eversley (1 mile south-west) for service penetrations. Further afield, our area takes in Wokingham (3 miles north-east), Woodley (5 miles north), Earley (5 miles north-west), Crowthorne (3 miles east), Lower Earley (4 miles north-west) and Winnersh (4 miles north).
Landmarks near California
Around California, our work takes us to commercial buildings near The Queen's Oak pub, Bohunt School Wokingham and Shepperlands Farm Nature Reserve, among other places. California’s nearest station is Crowthorne station, about 2.4 miles east of the centre. Other landmarks nearby include Beaumys Castle (4.7 miles west) and Wokingham Hospital (2.6 miles north-east). Green spaces nearby include Horseshoe Lake and Holt Copse & Joel Park.
Should maintenance staff do it?
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
On site: what to expect
When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself typically taking a single visit for a short list of penetrations, or a phased programme for a whole building. Smaller jobs around California can be grouped with others nearby. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Before we start on site
- Tell staff and tenants when we will be in
- Send asbestos survey details if the building is pre-2000
- Send any specification or drawings in advance
Get a fixed quote
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or send details through our quote form to discuss it first.
Read more
Honest limits
Honesty saves time and money. Fresh joints won’t solve:
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Large openings beyond what any sealant detail covers
- Fire doors, dampers or other fire safety equipment
Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.
Surfaces we seal
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
Surface by surface
Risers and ceiling voids
Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance, including keys, permits and any isolations.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest so we know it sits within the tested range, and any that don’t are flagged.
California: questions and answers
Does your area include sites such as Hogwood Lane Industrial Estate, near California?
Yes. Our area takes in California and its surroundings, with estates and business parks such as Hogwood Lane Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.
Is California off your patch?
No. Small places get the same service as large ones. 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?
It depends on the scope, though a typical visit usually takes a single visit for a short list of penetrations, or a phased programme for a whole building. For bigger or phased jobs, we’ll set out a timescale with the quote.
What will the job cost?
Every job gets its own fixed quote. To get one, call the office on 01277 525 020 or email the details over.
Do you approve fire stopping for building control?
No. Sign-off belongs to the designer or building control, not the installer. We will confirm the product and detail installed and agree any further records when we quote.
Is the BS 476 change in 2029 relevant to fire stopping?
It mainly affects England, where Approved Document B is dropping its BS 476 references from 2 September 2029. Classification to BS EN 13501-2 becomes the expected evidence, subject to transitional arrangements. In Scotland, the Technical Handbook sets its own guidance.
What about RAMS and site documents?
Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we’ll confirm with the quote.
Places near California
Other services in California
Commercial clients in California
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.
What sets the cost
These are the things that shape the price:
- Backing rod, priming and other preparation
- Working within restricted access windows
- How much existing material needs removing
- Quantities, in metres or numbers
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
What to include in your enquiry
Good information means a firmer quote. When you get in touch, include:
- When you need the work done
- Where the site is, with the postcode
- What the building is and how it’s used
- How the joints are reached, and at what height
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or email drawings and photos.