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

Fire stopping in Great Western Park

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

  • Openings left by services added after handover
  • Expanding foam used as fire stopping
  • Openings found when ceilings come down for a refit
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping for Great Western Park sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Why act early in Great Western Park

Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme. For buildings in places like Great Western Park, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

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 quote.

Why appoint us

  • A fixed quote before work starts
  • Health and safety: CHAS accredited
  • CSCS-carded applicators
  • A Constructionline member, so easy to vet

Read our cost guide or how we’re accredited.

About our fire stopping in Great Western Park

Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. The enquiries we see most involve damaged fire seals in risers and voids and service penetrations left open after M&E works, across joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and service gaps in risers. Facilities teams, main contractors and managing agents in Great Western Park tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Buildings in a smaller place such as Great Western Park that need fire-rated sealing are typically schools, care homes, surgeries, small offices and flats over shops. Around those penetrations, fire-rated sealant is installed if specified, with depth, backing and gap all as tested.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Great Western Park (OX11)
Wider area
Oxfordshire
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Penetration seals near Great Western Park

In England, Approved Document B covers fire stopping of 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. Great Western Park lies roughly 51 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Offices at parks like Trident Business Park (1.1 miles north-east of Great Western Park) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. Older community buildings such as Church of St Matthew that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Hotels such as The Kingswell Hotel, 1 mile to the south-west of Great Western Park, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.

Great Western Park is about 1 mile west of Didcot, in Oxfordshire. Across the OX11 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across Oxfordshire, 423 places are covered, including Great Western Park. For work in that direction, see our Oxford page (10 miles or so).

If you need fire stopping in OX11, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Holly Lane, Maple Road and Slade Road are within our area for service penetrations. Just outside Great Western Park, we also work in Didcot (1 mile east), Milton (2 miles north-west), Sutton Courtenay (2 miles north), Appleford-on-Thames (3 miles north-east) and Culham (3 miles north). Nearby towns on our patch include Oxford (10 miles north), Abingdon-on-Thames (5 miles north), Wantage (7 miles west), Grove (7 miles west), Faringdon (14 miles west) and Kidlington (15 miles north).

Near you in Great Western Park

We work on buildings around The Wheatsheaf pub, UTC Oxfordshire and UTC Oxfordshire. The closest station to Great Western Park is Didcot Parkway station, roughly 1.3 miles east of the centre. Well-known places in the area include Atlas Computer Laboratory (2.8 miles south-west) and Abingdon Community Hospital (4.7 miles north). Not far away are Churn Hill and Mowbray Fields.

Map of Great Western Park © OpenStreetMap contributors

Cost factors for service penetrations

Each job is priced on its own details. The main factors are:

  • Backing rod, priming and other preparation
  • Location, for remote and island sites
  • Any access equipment needed
  • The total length or number of joints

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Before you send an enquiry

Good information means a firmer quote. When you get in touch, include:

  • Approximate linear metres or a joint schedule
  • How the joints are reached, and at what height
  • Any specification or named product
  • Your programme or deadline

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

General trades versus a specialist

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

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

How the job changes by surface

Cables and cable bundles

Data cabling added after handover is a regular cause of open service penetrations. We reseal around them to the specified detail, and we tell you if the bundle exceeds what sealant covers.

Drylining partitions

Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range and we’ll tell you what the detail says instead.

On site: what to expect

On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself normally taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For a job in Great Western Park, the main thing is a clear picture of the work. You will then get a fixed price for the work.

  1. First we go through the drawings, schedule or specification for the seals.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Let building users know which areas are affected
  • Have the specification and drawings to hand
  • Tell us your opening times and when work is allowed

Get a fixed quote

Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, call 01277 525 020 or email us.

Ask for a quote

Related advice

FAQs: Great Western Park

Do you work on fire-rated sealing in hotels in Great Western Park?

Yes, to the specification and the product’s tested detail. We match the product to the wall or floor and the services, and say if something other than sealant is needed.

What does the BS 476 change mean for fire-rated sealant in Great Western Park?

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. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

How do you choose the sealant?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

Is your workmanship covered by a guarantee?

Yes. Workmanship is guaranteed for 12 months on every job.

Do your applicators hold CSCS cards?

Yes. We use CSCS-carded applicators, as many construction sites ask for.

Can staff carry on working while you are here?

Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.

Looking after the joints

A few simple habits keep the new joints working:

  • Agree the fire-stopping specification before services go in
  • Make fire stopping part of every scope that crosses a fire-resisting wall
  • Keep general-purpose fillers away from compartment walls
  • File the specified details where the next contractor can find them

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown.

A simple record of seal locations and products helps. It tells the next contractor exactly what to reinstate, which saves guesswork.

Accreditations

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