Mongewell fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps in Mongewell and across Oxfordshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Openings found when ceilings come down for a refit
- Improvised or mixed-product fire seals
- Old intumescent sealant that has split away
Fire stopping across Mongewell
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Mongewell
Facilities managers in Mongewell often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it. Where there isn’t one, the designer or fire engineer needs to set one first. The enquiries we see most involve snag lists that include open service penetrations and non-fire-rated filler around services, across linear gaps at wall heads, small duct penetrations where the tested detail allows and pipe penetrations. Most enquiries from Mongewell 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.
Smaller places such as Mongewell still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Mongewell (OX10)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
FAQs: Mongewell
What does the BS 476 change mean for fire-rated sealant in Mongewell?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Is Mongewell too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
How long does a job like this take?
That varies with the scale of the job, but the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it, flagging anything that needs clarifying.
Are you insured?
Yes. We’re fully insured, including public liability cover.
Will your applicators have CSCS cards?
Yes. We use CSCS-carded applicators, which many sites require.
How the job changes by surface
Small ducts
We seal around ducts only within what the tested detail covers. The ductwork, its supports and any dampers are for the ductwork contractor.
Risers and ceiling voids
Voids hide a lot of unsealed openings. We work through the areas on your schedule methodically.
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. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. For buildings around smaller places like Mongewell, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Why appoint us
- One contact handling all your sites
- Workmanship guaranteed for 12 months
- Constructionline member
- Commercial sealant work since 2005
See how commercial sealant jobs are priced or our accreditations.
Compartments and services around Mongewell
For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. Several hotels sit less than 2 miles from Mongewell. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.
Hotels such as The George Hotel, 0.8 miles to the north of Mongewell, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. Theatres, wards and plant rooms at sites like Wallingford Community Hospital, 0.5 miles north-west of Mongewell, all have compartment walls crossed by services. Holiday works at schools like Crowmarsh Gifford Church of England School often leave service openings to seal before pupils return.
Mongewell is about 6 miles east of Didcot, in Oxfordshire. Anywhere in OX10, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Mongewell is one of 423 places in Oxfordshire on our list for service penetrations. Our Reading page has more on work in that area, about 12 miles away.
Business premises anywhere in OX10 are within our area for service penetrations. Among the streets we cover are Hasthorpe Road, Shuttleworth Close and Elizabeth Road, and sites on any of them can send details for a fixed quote. Just outside Mongewell, we also work in Newnham Murren (1 mile north), Crowmarsh Gifford (1 mile north-east), Winterbrook (1 mile south-west), North Stoke (1 mile south) and Cholsey (2 miles south-west). Nearby towns on our patch include Oxford (12 miles north-west), Didcot (6 miles west), Abingdon-on-Thames (9 miles north-west), Thame (12 miles north-east), Wantage (13 miles west) and Henley-on-Thames (10 miles south-east).
Landmarks near Mongewell
In Mongewell, that means premises near Wallingford School, Wallingford School and The Old Nags Head pub. The closest station to Mongewell is Cholsey station, about 2.2 miles south-west. Nearby you’ll also find Wallingford Castle (0.9 miles north). Open spaces near Mongewell include Wittenham Clumps and Cholsey Marsh.
When to bring in a specialist
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.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Building owners, agents and FMs in Mongewell
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Towns and villages near Mongewell
What else we do in Mongewell
How a job runs
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before we move to the next. Smaller jobs around Mongewell can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- We read the specification, drawings or penetration schedule you send.
- 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.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Tell us your opening times and when work is allowed
- Share the asbestos register for older buildings
- Flag any permit to work we’ll need
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.
Advice
What sets the cost
A fixed quote reflects the actual work. It allows for:
- How accessible the joints are
- The site’s rules and procedures
- Travel to remote or island sites
- Which sealant the job calls for
Access often affects the price as much as the sealing: 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.
Details that help us quote
Good information means a firmer quote. Helpful details to send:
- The product your specification calls for
- Approximate linear metres or a joint schedule
- What the building is and how it’s used
- The site address and postcode
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or email the details over.