Mortimer West End fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps across Mortimer West End, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Expanding foam used as fire stopping
- Unsealed penetrations discovered above suspended ceilings
- Snag lists that include open service penetrations
Fire stopping for businesses in Mortimer West End
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Site staff or a sealant specialist?
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.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
How we handle fire stopping in Mortimer West End
Most of our fire stopping work happens after the building is up. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. If you have builders’ foam or ordinary silicone in compartment walls and hidden openings found during inspections, we can help, whatever the surface. A specialist sealant contractor works differently from a general builder: on jobs in Mortimer West End, preparation and product choice get the time they need.
Around smaller places like Mortimer West End, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Where
- Mortimer West End (RG7)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence, and our waste is bagged and taken away as we go. For a building around Mortimer West End, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- 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.
- 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.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Share the asbestos register for older buildings
- Tell us what induction or permit system the site runs
Getting a fixed quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
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Building owners, agents and FMs in Mortimer West End
If you look after buildings for someone else, 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.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
Also near Mortimer West End
Other services in Mortimer West End
What sealant work can’t fix
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Gaps in walls that were never built as compartment walls
- Signing off or certifying a building’s fire stopping
- Writing the fire-stopping specification
If in doubt, call 01277 525 020 or email the details over and we’ll say what we think.
Where we work in Mortimer West End
- Service gaps in risers
- Pipe penetrations
- Linear gaps at wall heads
- Cable penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
Different surfaces, different methods
Masonry and concrete
Openings through concrete vary from tidy cores to rough break-outs. Each gap is measured where it is widest so we know it sits within the tested range, and any that don’t are flagged.
Risers and ceiling voids
Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.
Mortimer West End: questions and answers
Is Mortimer West End off your patch?
No. Places such as Mortimer West End 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.
Do you cover business parks and estates near Mortimer West End, such as Stacey Industrial Park?
Yes, sites like Stacey Industrial Park are within our area, along with the rest of Mortimer West End. Photos and a short description are enough for a first look.
Can you work to our specification?
Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
Which standards are fire seals tested to?
BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Classification follows BS EN 13501-2 as E for integrity and I for insulation, with a time such as EI 60 or EI 120. The rating applies to the product as tested.
Can one quote cover more than one building?
Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.
Can you tell us what fire stopping our building needs?
No. Deciding what is needed sits with the designer, fire engineer and building control. Our role is fitting the specified fire-rated sealant, following the maker’s tested details.
Penetration seals near Mortimer West End
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. Our part stays the same: the specified product, installed to its tested detail. At about 44 miles from central London, Mortimer West End is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.
For a school such as Silchester Church of England Primary School, penetration sealing fits best at the end of the summer works. On estates like Stacey Industrial Park, 1.7 miles south-west of Mortimer West End, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. In a building such as The Parish Church of St.Saviours, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Mortimer West End is about 2 miles north-east of Tadley, in Hampshire. We send applicators to Mortimer West End for service penetrations, handled exactly as we handle every other area. We work across 723 places in Hampshire. For work in that direction, see our Reading page, about 7 miles away.
Business premises anywhere in RG7 are within our area. We cover commercial and managed buildings on Church Road, Back Lane and Chapel Road. Nearby places we also cover include Mortimer (1 mile north-east), Three Ashes (2 miles south), Stratfield Mortimer (2 miles east), Burghfield Common (2 miles north-east) and West End Green (3 miles south-east). A short drive away, we cover Basingstoke (7 miles south), Farnborough (15 miles east), Fleet (13 miles south-east), Yateley (11 miles east), Hook (8 miles south-east) and Popley (6 miles south).
What’s near Mortimer West End
Locally, jobs take us to sites close to Padworth Common Local Nature Reserve, The Willink School and The Red Lion Public House and the streets around them. For rail, the closest station is Mortimer station, about 2.4 miles east of the centre. Well-known places in the area include Beaumys Castle (4.8 miles east) and Calleva Museum (1.1 miles south). Open spaces near Mortimer West End include Hosehill Lake.
What affects the price in Mortimer West End
Your fixed quote is built from the real scope. It takes account of:
- Access and working height
- Backing rod, priming and other preparation
- Distance, for remote addresses
- The total length or number of joints
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.
What to include in your enquiry
To price the job accurately, we need to understand the site. Send us:
- Specification clauses that apply
- The asbestos register, for older buildings
- Where the site is, with the postcode
- Anything awkward about access or site hours
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call 01277 525 020 or email a schedule or drawings.