The Mastic Doctor team standing beside their branded vans outside an office building
Oxfordshire · England

Fire stopping in Middle Aston

Work needed on a service penetration in Middle Aston? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Openings found when ceilings come down for a refit
  • Old intumescent sealant that has split away
  • Fire-stopping items raised at inspection or handover
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping across Middle Aston

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Fire stopping in Middle Aston

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. If you have builders’ foam or ordinary silicone in compartment walls and old intumescent sealant that has split away, we can help, whatever the surface. Searching for sealant specialists in Middle Aston? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

A job near Middle Aston is usually planned around one visit, so send the specification and photographs first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Where
Middle Aston (OX25)
Region
Oxfordshire
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Why act early in Middle Aston

Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down, and the right detail can be checked at the time. Older rural buildings around Middle Aston move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.

Why clients in Middle Aston choose us

  • Clear, fixed quotes
  • Health and safety: CHAS accredited
  • Sealing commercial buildings since 2005
  • CSCS-carded applicators

See what affects the cost or our accreditations.

Honest limits

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Fire doors, dampers or other fire safety equipment
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Walls or floors that aren’t fire-resisting to begin with

Not sure which it is? You can speak to us on 01277 525 020 or email drawings and photos and we will tell you honestly before you book.

Where we work in Middle Aston

  • Cable penetrations
  • Small duct penetrations where the tested detail allows
  • Linear gaps at wall heads
  • Service gaps in risers
  • Pipe penetrations
  • Joints between fire-resisting walls and floors

Should maintenance staff do it?

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

After the work

Problems stay small when the joints are checked regularly. In particular:

  • Settle who seals which penetrations at the start of a project
  • Get seals inspected before ceilings and boxing close
  • Flag new cables with no seal around them
  • Put resealing into every M&E and fit-out package

Never top up a fire seal with foam, ordinary silicone or filler. A repair should use the original product, installed the same way.

Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.

Questions we’re asked in Middle Aston

Is Middle Aston off your patch?

Not at all. Middle Aston is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

What happens to BS 476 references for fire stopping in Middle Aston?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Is your workmanship covered by a guarantee?

Yes. Our workmanship is backed for 12 months.

How do you choose the sealant?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Will you quote for a small job?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout.

What do you charge?

We don’t publish prices, because every site is different. Send photos or drawings and we’ll price it at a fixed figure.

From enquiry to sign-off

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For work around Middle Aston, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.

  1. We ask for the product and detail your designer has specified.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Before we start on site

  • For older buildings, check the asbestos register before work
  • Explain the parking and delivery arrangements
  • Let us know about inductions and permits

Ask for a quote

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.

Ask for a quote

Advice

Service penetrations in Middle Aston buildings

Middle Aston is about 60 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. 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. Our part stays the same: the specified product, installed to its tested detail.

Where a unit on an estate such as Hatch End Old Industrial Estate, less than half a mile to the south of Middle Aston, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. In a hotel such as Holt Hotel (Oxfordshire), 1.3 miles south-west of Middle Aston, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. In a school such as Dr Radcliffe's Church of England Primary School, fire-rated sealant goes in around service penetrations where it is specified.

Middle Aston is about 7 miles west of Bicester, in Oxfordshire. We cover commercial sites throughout Middle Aston. Our Oxfordshire coverage takes in 423 places. There’s a separate page for Oxford, roughly 13 miles from Middle Aston.

Postcode districts covered here: OX25. Just outside Middle Aston, we also work in Steeple Aston (1 mile south), North Aston (1 mile north), Duns Tew (1 mile north-west), Dane Hill (2 miles north) and Steeple Barton (2 miles south-west). Nearby towns on our patch include Oxford (13 miles south), Banbury (9 miles north), Bicester (7 miles east), Witney (13 miles south-west), Kidlington (8 miles south) and Headington Quarry (13 miles south).

What’s near Middle Aston

Locally, jobs take us to sites close to Red Lion pub and the streets around them. Middle Aston’s nearest station is Heyford station, about 1.5 miles south. Nearby you’ll also find Deddington Castle (2.9 miles north).

Map of Middle Aston © OpenStreetMap contributors

Owners, agents and contractors

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Accreditations

Trusted. Accredited. Insured.