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

Fire Stopping in Tidmarsh

Fire-rated and intumescent sealing of service penetrations and linear gaps in Tidmarsh and across West Berkshire. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Damaged fire seals in risers and voids
  • Expanding foam used as fire stopping
  • 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
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Fire stopping for businesses in Tidmarsh

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

Questions we’re asked in Tidmarsh

Is a hospital such as Battle Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

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

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Can the building stay open while you work?

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

Is the work guaranteed?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

What will the job cost?

It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote and we’ll price it properly.

Which sealant will you use?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Fire stopping for commercial buildings in Tidmarsh

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. We work on cable penetrations, joints between fire-resisting walls and floors and linear gaps at wall heads, and the usual reasons a site gets in touch are fire stopping installed outside its tested range and openings found when ceilings come down for a refit. Facilities teams, main contractors and managing agents in Tidmarsh tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Smaller places such as Tidmarsh still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Tidmarsh (RG8)
Wider area
West Berkshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Our process

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you. For work around Tidmarsh, we aim to finish in one visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  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. 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.

Before we start on site

  • Tell us which areas need to stay in use
  • Confirm the product named in the specification
  • Let building users know which areas are affected

Get a fixed quote

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or email drawings and photos.

Ask for a quote

Related advice

Building owners, agents and FMs in Tidmarsh

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Cost factors for service penetrations

Quotes vary with the job. Expect it to depend on:

  • Whether the work must be split into stages
  • The total length or number of joints
  • Specialist products, such as fire-rated or hygienic sealants
  • How accessible the joints are

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.

What we need to price the job

Whether it’s one area or a whole building, the same details help:

  • The postcode of the building
  • What the building is and how it’s used
  • The product your specification calls for
  • The asbestos register, for older buildings

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Looking after the joints

To get the most from the new sealant:

  • Check risers and ceiling voids after each round of works
  • Ask which product is in place before decorating
  • Report damaged or disturbed seals as soon as they’re spotted
  • Record which product was used where

New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.

Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts.

What we are called out for in Tidmarsh

Damage plays a part too. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.

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

  • Unsealed joints where partitions meet the slab
  • Fire seals cut back for extra cables and never reinstated
  • Builders’ foam or ordinary silicone in compartment walls
  • Openings found when ceilings come down for a refit

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

Comparing quotes

  • Are they CHAS accredited or on Constructionline?
  • Is the sealant right for the movement and the substrate?
  • What site paperwork they can supply
  • What the guarantee covers, and for how long

Choosing a commercial sealant contractor

Fire-rated sealing for Tidmarsh buildings

The area within 2 miles of Tidmarsh holds several hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Central London is about 43 miles from Tidmarsh. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Offices at parks like Turnhams Green Business Park (to the south-east of Tidmarsh) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. Workshops and IT rooms at colleges like Integration College (to the south-east of Tidmarsh) are re-serviced often, leaving penetrations to seal.

Tidmarsh is about 5 miles west of Reading, in West Berkshire. Commercial clients in Tidmarsh can call on us for service penetrations. Tidmarsh is one of 140 places we cover in West Berkshire for service penetrations.

We take on service penetrations across the RG8 postcode area, for business premises of every kind. Among the streets we cover are Strachey Close and Tidmarsh Lane, and sites on any of them can send details for a fixed quote. We also cover Sulham (1 mile east), Pangbourne (1 mile north), Whitchurch-on-Thames (1 mile north), Little Heath (2 miles south-east) and Englefield (2 miles south). Further afield, our area takes in Newbury (11 miles south-west), Thatcham (9 miles south-west), Burghfield Common (5 miles south), Speenhamland (11 miles south-west), Fords Farm (3 miles south-east) and Calcot (3 miles south-east).

Around Tidmarsh

Locally, jobs take us to sites close to The Cross Keys pub and Denefield School. Tidmarsh’s nearest station is Pangbourne station, roughly 1.1 miles north. Nearby you will also find Battle Hospital (4 miles east) and Thames Valley Police Museum (3.5 miles south). Green spaces nearby include Moor Copse Nature Reserve and Hosehill Lake.

Map of Tidmarsh © OpenStreetMap contributors

Doing it in-house

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

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.

Accreditations

Trusted. Accredited. Insured.