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

Fire stopping in Thrupp

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Thrupp and the surrounding area. Send details for a fixed quote.

  • Unsealed penetrations discovered above suspended ceilings
  • Service penetrations left open after M&E works
  • Open linear gaps along the top of fire-resisting walls
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need fire stopping in Thrupp?

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

What affects the price in Thrupp

The price varies from site to site. Expect it to depend on:

  • The total length or number of joints
  • Backing rod, priming and other preparation
  • Working within restricted access windows
  • Whether old sealant has to be cut out first

There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Any specification or named product
  • How the joints are reached, and at what height
  • Whether an asbestos survey exists
  • Clear photographs of the problem areas

To get a fixed quote, call the office on 01277 525 020 or email us, telling us the site location and the nature of the job. You can also send details through our quote form.

Fire stopping in Thrupp, done properly

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. If you’re dealing with fire stopping installed outside its tested range and fire sealant pulled out of the opening, we can help, on service gaps in risers, cable penetrations and linear gaps at wall heads alike. Most enquiries from Thrupp 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.

A job near Thrupp is typically planned around one visit, with the specification and photos sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Thrupp (OX5)
Region
Oxfordshire
Cover
A 12-month guarantee
Price
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026

Honest limits

We check first that sealant really is the fix. It isn’t the answer for:

  • Plastic pipes whose detail calls for a collar or wrap
  • Issuing fire ratings or certificates for seals
  • Gaps in walls that were never built as compartment walls

If you are not sure, just call 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.

What we seal

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

Building owners, agents and FMs in Thrupp

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

CHAS accredited and a Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

From enquiry to sign-off

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. If others near Thrupp need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  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.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • For older buildings, check the asbestos register before work
  • Agree which areas must stay open

Quotes

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or email us with what you know.

Get a quick quote

Read more

Doing it in-house

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

Fire stopping in Thrupp: the local picture

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. Either way, we install the specified product to its tested detail. Several hotels sit less than 2 miles from Thrupp. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.

For a school such as The Marlborough Church of England School, penetration sealing fits best at the end of the summer works. Hospital estates such as Acland Hospital (to the south of Thrupp) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Residences at universities like University Field Station, 3.9 miles south of Thrupp, have compartment walls that must be resealed whenever services change.

Thrupp is about 7 miles north-west of Oxford, in Oxfordshire. If you’re looking for fire stopping in Thrupp, we can help. 423 places across Oxfordshire fall within our area, including Thrupp. Oxford is covered too, around 7 miles from Thrupp.

Commercial sites across OX5 are covered. Close to Thrupp, our area also takes in Shipton-on-Cherwell (1 mile north), Begbroke (1 mile south-west), Bunkers Hill (1 mile north), Woodstock (2 miles west) and Bladon (2 miles west). A short drive away, we cover Oxford (7 miles south-east), Bicester (8 miles north-east), Abingdon-on-Thames (11 miles south), Witney (9 miles south-west), Carterton (13 miles west) and Headington Quarry (7 miles south-east).

Landmarks near Thrupp

Recent enquiries here include premises near The Boat Public House, among other places. The nearest railway station is Oxford Parkway station, about 2.7 miles south-east. Well-known places in the area include Acland Hospital (5.7 miles south) and Soldiers of Oxfordshire Museum (2.4 miles west). Open spaces near Thrupp include Hook Meadow and The Trap Grounds.

Map of Thrupp © OpenStreetMap contributors

Surface by surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on, so we check each one.

Masonry and concrete

Block walls and concrete floors are common substrates for penetration seals. Dust and loose debris are cleared out of the opening.

FAQs: Thrupp

Can you work on a hospital site such as Acland Hospital?

Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Is Thrupp 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. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Can you quote from photos?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit.

Do you seal openings left by new services?

Yes, provided a specification covers them. New services after M&E works often breach existing seals.

How do we ask for a quote?

There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

Do you work in Scotland as well as England?

Building standards in Scotland are separate from England’s. Either way, we install the specified sealant to its tested detail.

Will you quote for a small job?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

Accreditations

Trusted. Accredited. Insured.