
Fire-rated sealing and fire stopping in Aldermaston, West Berkshire
Fire-rated and intumescent sealing of service penetrations and linear gaps in Aldermaston and across West Berkshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Improvised or mixed-product fire seals
- Builders’ foam or ordinary silicone in compartment walls
- Fire seals cut back for extra cables and never reinstated
Need fire stopping in Aldermaston?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Common questions from Aldermaston clients
Is Fronds Park Business Park, near Aldermaston, within your area?
Yes. We cover Aldermaston and the area around it, including industrial estates, business parks and retail parks such as Fronds Park Business Park. A few photos and the unit address let us price the work.
Do you seal service penetrations in hotels around Aldermaston?
Yes, to the specification and the product’s tested detail. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we will tell you if the detail calls for a collar, wrap or batt instead.
Do you hold CHAS accreditation?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Can staff carry on working while you’re here?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.
How we handle fire stopping in Aldermaston
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate, and we won’t pretend otherwise. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. We work on linear gaps at wall heads, cable penetrations and small duct penetrations where the tested detail allows, and what we’re called in for most is fire sealant pulled out of the opening and expanding foam used as fire stopping. Facilities teams, main contractors and managing agents in Aldermaston tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For a smaller site near Aldermaston, 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.
Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.

- Where
- Aldermaston (RG7)
- Region
- West Berkshire
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Honest limits
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Issuing fire ratings or certificates for seals
- Construction that lacks the fire resistance the seal relies on
- Openings that need collars, wraps, batts or boards rather than sealant
If you’re not sure, just ring 01277 525 020 or send photos by email and we’ll give you a straight answer.
Surfaces we seal
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Linear gaps at wall heads
Our process
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Smaller jobs around Aldermaston can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- 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.
Preparing the site
- Move anything stored against the joints
- Explain the parking and delivery arrangements
- Agree which areas must stay open
Getting a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or use the quote form to discuss it first.
Advice
What we are called out for in Aldermaston
A common fault is a product that was never fire-rated in the first place: builders’ foam or ordinary silicone used to fill a hole. The opening looks sealed but has no fire test evidence behind it, so it has to come out.
What tends to prompt an enquiry:
- Non-fire-rated filler around services
- Unsealed joints where partitions meet the slab
- Improvised or mixed-product fire seals
- Openings found when ceilings come down for a refit
Holiday works at schools like Aldermaston C.E. Primary School often leave service openings to seal before pupils return.
Comparing quotes
- Will failed sealant be removed rather than covered?
- Can the work be phased to keep areas open?
- Will RAMS and insurance details be available?
- What the guarantee covers, and for how long
Nearby places to Aldermaston
Also in Aldermaston
Why deal with it now?
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is typically a modest job when the openings are accessible. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Around Aldermaston, it’s better to renew all the failing joints at once. Send photos of each area and we’ll quote for the lot.
Whether it’s a single area or a whole estate, the same things set the price: 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.
Why appoint us
- 12 months’ guarantee on every job
- Constructionline member for supplier checks
- Over 20 years of commercial sealing
- One phone line for London, the South East and Scotland
Take a look at how commercial sealant jobs are priced or our accreditations and insurance.
Work for main contractors and building owners
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
Fire stopping around Aldermaston: how the place shapes the job
At about 46 miles from central London, Aldermaston is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. Fire stopping of openings and penetrations in England falls under Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.
On a site such as Fronds Park Business Park, 0.8 miles north of Aldermaston, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product. In a building such as Church of St Mary the Virgin, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Aldermaston is about 2 miles north of Tadley, in West Berkshire. We cover commercial sites throughout Aldermaston. Our West Berkshire coverage takes in 140 places. There’s a separate page for Reading, roughly 9 miles from Aldermaston.
Postcode districts covered here: RG7. Among the streets we cover are The Street, Church Road and Maidas Way. Sites close to Aldermaston are covered too, including Woolhampton (1 mile north-west), Padworth Common (2 miles east), Old Warren (2 miles south-east), Padworth (2 miles east) and Aldermaston Soke (2 miles south-east). Further afield, our area takes in Newbury (7 miles west), Thatcham (5 miles west), Burghfield Common (4 miles east), Speenhamland (8 miles west), Fords Farm (7 miles north-east) and Little Heath (7 miles north-east).
What’s near Aldermaston
Recent enquiries here include premises near Padworth Common Local Nature Reserve, The Rising Sun pub and The Hurst School. Aldermaston’s nearest station is Aldermaston station, about 1.4 miles north-east. Other landmarks nearby include Calleva Museum (3.1 miles south-east). For a walk, there’s Hosehill Lake.
How the job changes by surface
Linear joints
Head-of-wall joints often have to absorb slab deflection. We use the product and backing the detail names for that movement, along the full length of the run.
Plastic pipes
Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail. We confirm material and size first and tell you if sealant isn’t the right product.