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

Fire Stopping in Woodstock

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Woodstock and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Open linear gaps along the top of fire-resisting walls
  • Old intumescent sealant that has split away
  • Damaged fire seals in risers and voids
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Fire stopping across Woodstock

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Owners, agents and contractors

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

Fire stopping in Woodstock

Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal rather than guesswork. If you have unsealed joints where partitions meet the slab and fire stopping installed outside its tested range, we can put it right, on pipe penetrations, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows alike. Facilities teams, main contractors and managing agents in Woodstock tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Converted and extended buildings around places like Woodstock can mix old and new construction, so it’s worth confirming the wall or floor type before choosing the seal. We match the product to the substrate and service, and say so if a collar, wrap or batt is the specified item.

Every job we finish is backed by a 12-month workmanship guarantee, in Woodstock as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Where
Woodstock (OX20)
Region
Oxfordshire
Guarantee
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

How the quote is worked out

Before we quote, we look at:

  • Travel to remote or island sites
  • Induction, permit and paperwork requirements
  • Joint width, depth and condition
  • How much there is to seal

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

What we need to price the job

A few photos plus some basic facts will normally do. It helps to include:

  • Clear photos of the problem areas
  • How the joints are reached, and at what height
  • Any specification or named product
  • Drawings or a marked-up plan, if available

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or call 01277 525 020 or email drawings and photos to discuss it first.

Do you need fire stopping in Woodstock?

Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is when untested combinations creep in.

What tends to prompt an enquiry:

  • Builders’ foam or ordinary silicone in compartment walls
  • Penetration schedules that need working through
  • Hidden openings found during inspections
  • Head-of-wall gaps with no fire seal

For a school such as Woodstock Church of England Primary School, penetration sealing fits best at the end of the summer works.

Questions to ask before you book

  • How joint depth will be controlled
  • How they handle RAMS and site documents
  • How the existing material will be dealt with
  • Is the sealant right for the movement and the substrate?

Choosing a commercial sealant contractor

Fire stopping in Woodstock: the local picture

Central London is about 59 miles from Woodstock. Office refits around the commuter belt bring new cabling through fire-resisting walls, and the gaps need sealing with the specified product. There are a good number of hotels within about 2 miles of Woodstock. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

On a site such as Oxford Spires Business Park, 1.9 miles to the south-east of Woodstock, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product. Hotels like One Village The Marlborough Arms Hotel (less than half a mile west of Woodstock) are refurbished in phases, and each phase can open up compartment walls.

Woodstock is about 7 miles north-east of Witney, in Oxfordshire. If you are looking for fire stopping in Woodstock, we can help. Our Oxfordshire coverage takes in 423 places, large and small. For work in that direction, see our Oxford page.

Anyone looking for fire stopping in OX20 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Market Street, High Street and Briar Thicket or nearby, send details and we’ll quote for service penetrations. Main routes into Woodstock include the A44. Close to Woodstock, our area also takes in Bladon (1 mile south), Bunkers Hill (2 miles north-east), Shipton-on-Cherwell (2 miles east), Thrupp (2 miles east) and Begbroke (2 miles south-east). Bigger towns within reach include Oxford (8 miles south-east), Banbury (15 miles north), Bicester (9 miles north-east), Abingdon-on-Thames (12 miles south), Witney (7 miles south-west) and Carterton (12 miles south-west).

Landmarks near Woodstock

We work on buildings around The Punchbowl Inn and Marlborough School, among other places. For rail, the closest station is Hanborough station, roughly 2 miles south-west of the centre. Other landmarks nearby include Soldiers of Oxfordshire Museum (0.5 miles west).

Map of Woodstock © OpenStreetMap contributors

How the job changes by surface

Plastic pipes

Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail. We check the pipe material and diameter against the detail before we start.

Cables and cable bundles

Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables.

Your questions answered

Is Oxford Spires Business Park, near Woodstock, within your area?

Yes. Our area takes in Woodstock and its surroundings, with estates and business parks such as Oxford Spires Business Park included. Send details of the unit and the work through our quote form for a quick quote.

How does the move away from BS 476 affect penetration seals in Woodstock?

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. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, with one point of contact across South East England, Greater London and Scotland.

What’s the quickest route to a quote?

There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Several jobs near Woodstock can be grouped on one trip. Mention the building’s opening times and we will work within them.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. 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
  • Send any specification or drawings in advance
  • Share the asbestos register for older buildings

Getting a fixed quote

For a fixed quote, phone 01277 525 020 or send details through our quote form. You can also send details through our quote form.

Get a quick quote

Read more

What we can’t put right

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be any of the following:

  • Writing the fire-stopping specification
  • Plastic pipes whose detail calls for a collar or wrap
  • Issuing fire ratings or certificates for seals

If you’re not sure, just phone 01277 525 020 or send photos by email and we will give you a straight answer before you book.

Where we work in Woodstock

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

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