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

Fire Stopping in Highmoor

Sealant work in Highmoor for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Service penetrations left open after M&E works
  • Fire sealant pulled out of the opening
  • Improvised or mixed-product fire seals
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Fire stopping near Highmoor

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

Fire stopping in Highmoor

On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, phone 01277 525 020 or email drawings and photos with the schedule or marked-up drawings and the specified product data. Tell us what records you need and we will confirm with the quote. Site teams most often ask us about penetration schedules that need working through and fire-rated sealant that has cracked or shrunk back, across service gaps in risers, joints between fire-resisting walls and floors and linear gaps at wall heads. A single leaking joint is often how a building in Highmoor first comes to us: we look at the rest while we are there and tell you what we find.

A job near Highmoor is normally 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.

Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Highmoor (RG9)
Region
Oxfordshire
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

On site: what to expect

At the end of each section, we remove the tape, clean down and inspect every joint. If an area should be left alone while the sealant cures, we say how long and put signs out. For a building around Highmoor, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Before we start on site

  • Tell us what induction or permit system the site runs
  • For older buildings, check the asbestos register before work
  • Arrange parking or a loading space

Quotes

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

Get a quick quote

Advice

Quoting for work in Highmoor

We price every job individually. The main factors are:

  • Specialist products, such as fire-rated or hygienic sealants
  • Removal of failed or old sealant
  • The site’s rules and procedures
  • Working within restricted access windows

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.

Sending details for a quote

Whether it’s one area or a whole building, these details speed things up:

  • Drawings or a marked-up plan, if available
  • The product your specification calls for
  • The asbestos register, for older buildings
  • Your programme or deadline

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to ring 01277 525 020 or send details through our quote form with what you know.

Leave it or put it right?

Open service penetrations matter on ordinary days, not just in a fire: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these. Around Highmoor, it’s better to renew all the failing joints at once, rather than one at a time. Send photographs of each area and we will quote for the lot.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why choose Mastic Doctor in Highmoor

  • A fixed quote before work starts
  • Specification-led, product-correct work
  • Sealing commercial buildings since 2005
  • Health and safety: CHAS accredited

Take a look at how commercial sealant jobs are priced or how we’re accredited.

What the job involves on each surface

Small ducts

Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork normally needs a different solution set by the designer, and we’ll say if that applies.

Linear joints

Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.

Honest limits

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Walls or floors that aren’t fire-resisting to begin with
  • Writing the fire-stopping specification
  • Fire risk assessments, a job for a competent assessor

Not sure which it is? You can phone 01277 525 020 or send photos by email and we’ll tell you honestly.

Surfaces we seal

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

Service penetrations in Highmoor buildings

Highmoor is about 39 miles from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Holiday works at schools like Stoke Row Church of England School often leave service openings to seal before pupils return. Hotels like The White Hart Hotel, 1.4 miles to the north of Highmoor, are refurbished in phases, and each phase can open up compartment walls. In a building such as Church of St Paul, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Highmoor is about 4 miles north-west of Henley-on-Thames, in Oxfordshire. Looking for fire stopping in Highmoor? We can help. 423 places across Oxfordshire fall within our area, Highmoor among them. There’s a separate page for Reading, roughly 7 miles from Highmoor.

Postcode districts covered here: RG9 for service penetrations. Buildings on The Glebe and Holly Close are within our area for service penetrations. Close to Highmoor, our area also takes in Highmoor Cross (1 mile south-east), Shepherd's Green (1 mile south-east), Catslip (1 mile north-east), Nettlebed (2 miles north) and Kingwood Common (2 miles south). Nearby towns on our patch include Didcot (11 miles west), Abingdon-on-Thames (15 miles north-west), Thame (13 miles north), Henley-on-Thames (4 miles south-east), Benson (6 miles north-west) and Chinnor (11 miles north).

Local landmarks in Highmoor

Recent enquiries here include premises near The Dog and Duck pub and the streets around them. The nearest railway station is Henley-On-Thames station, about 4.5 miles east of the centre. The countryside around Highmoor includes Warburg Nature Reserve.

Map of Highmoor © OpenStreetMap contributors

Questions about Highmoor

Do you cover business parks and estates near Highmoor, such as Vanalloys Business Park?

Yes. We cover Highmoor and the area around it, including industrial estates, business parks and retail parks such as Vanalloys Business Park. To start, just phone 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.

What does the BS 476 change mean for fire-rated sealant in Highmoor?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

What do you charge?

That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.

How long does a typical visit take?

We plan the time on site around your programme and access. You’ll have an expected duration with the quote.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Is colour matching possible?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.

When to bring in a specialist

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Accreditations

Trusted. Accredited. Insured.