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

Fire Stopping in Letcombe Bassett

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Letcombe Bassett. Send details for a fixed quote.

  • Head-of-wall gaps with no fire seal
  • Expanding foam used as fire stopping
  • Snag lists that include open service penetrations
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
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
CHAS accredited
Fully insured: £5m PL

Fire stopping for businesses in Letcombe Bassett

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

When to bring in a specialist

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.

Fire stopping in Letcombe Bassett

Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. We work on linear gaps at wall heads, pipe penetrations and service gaps in risers, and the failures we’re asked to look at most are unsealed openings around new pipes and cables and open linear gaps along the top of fire-resisting walls. A specialist sealant contractor works differently from a general builder: in Letcombe Bassett, that means joint design, primers and backing rod as standard.

Barn and farm-building conversions near places like Letcombe Bassett often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

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

Where
Letcombe Bassett (OX12)
Region
Oxfordshire
Cover
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Cost factors for service penetrations

These are the things that shape the price:

  • The product specified
  • Quantities, in metres or numbers
  • Removal of failed or old sealant
  • Joint width, depth and condition

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 and we will explain how it’s made up.

What to include in your enquiry

We can often quote from photos and a few details. It helps to include:

  • The site address and postcode
  • Rough lengths or quantities, or drawings if you have them
  • Asbestos survey details if the building is older
  • The product your specification calls for

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.

Our process

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes anything from one day to a planned run of visits, depending on the number of seals and the access, and we clear our waste as we work. Rural sites near Letcombe Bassett may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  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.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Have the specification and drawings to hand
  • Tell us which areas need to stay in use

Ask for a quote

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, speak to us on 01277 525 020 or use the quote form.

Get a quick quote

Advice

Compartments and services around Letcombe Bassett

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. Our part stays the same: the specified product, installed to its tested detail. Letcombe Bassett lies roughly 59 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls.

Where a unit on an estate such as W&G Industrial Estate, 2.4 miles to the north of Letcombe Bassett, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Theatres, wards and plant rooms at sites like Wantage Community Hospital (to the north-east of Letcombe Bassett) all have compartment walls crossed by services.

Letcombe Bassett is about 3 miles south-west of Wantage, in Oxfordshire. We cover Letcombe Bassett, with the same fixed quotes and 12-month guarantee as everywhere else. Letcombe Bassett is one of 423 places in Oxfordshire on our list for service penetrations. There’s a separate page for Oxford, about 16 miles away.

Work on service penetrations is covered throughout OX12, whatever the building. Among the streets we cover are Gramp's Hill, Forsters Lane and Bassett Road. Close to Letcombe Bassett, our area also takes in Letcombe Regis (1 mile north-east), Childrey (2 miles north-west), East Challow (2 miles north), West Challow (2 miles north) and Wantage (3 miles north-east). A short drive away, we cover Didcot (10 miles east), Abingdon-on-Thames (11 miles north-east), Carterton (15 miles north), Grove (3 miles north-east), Faringdon (8 miles north-west) and Wallingford (14 miles east).

Near you in Letcombe Bassett

Green spaces nearby include Chain Hill and Letcombe Valley.

Map of Letcombe Bassett © OpenStreetMap contributors

What we are called out for in Letcombe Bassett

When a seal departs from its tested detail, the evidence no longer covers it. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.

These are often picked up first by site or facilities staff:

  • Fire-rated sealant that has cracked or shrunk back
  • Head-of-wall gaps with no fire seal
  • Expanding foam used as fire stopping
  • Fire stopping installed outside its tested range

Older community buildings such as Church of St Michael that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

What your quote should include

  • How they handle RAMS and site documents
  • Are they CHAS accredited or on Constructionline?
  • What level of public liability insurance do they hold?
  • How the existing material will be dealt with

Choosing a commercial sealant contractor

Looking after the joints

After handover, a little attention goes a long way:

  • Ask the designer to confirm details early on refits
  • Keep general-purpose fillers away from compartment walls
  • File the specified details where the next contractor can find them
  • Look above ceilings when tiles are lifted for other jobs

Don’t patch a fire-rated seal with anything outside its tested detail. 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, and the work runs in step with the M&E.

Common questions from Letcombe Bassett clients

Can you work on a hospital site such as Wantage Community Hospital?

Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Letcombe Bassett?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Can you work while the building is occupied?

Normally, yes. We phase the work so most of the building stays in use.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Do you cover Letcombe Bassett?

Yes. We cover Letcombe Bassett, and you can call 01277 525 020 or send photos by email to get started.

Are you insured?

Yes. Our insurance certificate can be sent alongside the quote.

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.

Work for main contractors and building owners

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.

Accreditations

Trusted. Accredited. Insured.