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

Fire stopping in Woodrow

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Woodrow. Send photographs or drawings for a fixed quote.

  • Unsealed openings around new pipes and cables
  • Snag lists that include open service penetrations
  • Head-of-wall gaps with no fire seal
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping for businesses in Woodrow

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

Fire stopping for commercial buildings in Woodrow

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance. If you have hidden openings found during inspections and openings left by services added after handover, we can put it right, on pipe penetrations, small duct penetrations where the tested detail allows and service gaps in risers alike. A specialist sealant contractor works differently from a general builder: in Woodrow, that means joint design, primers and backing rod as standard.

Around smaller places like Woodrow, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Woodrow (HP7)
Wider area
Buckinghamshire
Guarantee
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

Building owners, agents and FMs in Woodrow

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

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

Your questions answered

Is a hospital such as Amersham 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.

Does your area include sites such as Corinium Industrial Estate, near Woodrow?

Yes. Our area takes in Woodrow and its surroundings, with estates and business parks such as Corinium Industrial Estate included. To start, just speak to us on 01277 525 020 or use the quote form with the unit, the joints involved and your access times.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Is any job too small?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Is the work guaranteed?

Yes, for 12 months. If our installation fails in that time, we return and fix it.

How many days will you need on site?

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

Will you sign off the seals for us?

No. We don’t certify or sign off fire stopping, and we hold no third-party fire-stopping installer certificate. Our part is fitting the specified product to its tested detail.

How the quote is worked out

A fixed quote reflects the actual work. It takes account of:

  • Location, for remote and island sites
  • The site’s rules and procedures
  • How much existing material needs removing
  • The product specified

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 fixed quote.

Before you send an enquiry

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

  • Whether the building will be occupied during the work
  • Drawings or a marked-up plan, if available
  • The product your specification calls for
  • Your programme or deadline

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

What the job involves on each surface

Plastic pipes

Plastic waste pipes through slabs come up often. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.

Risers and ceiling voids

Openings above suspended ceilings are easy to miss. We work through the areas on your schedule methodically, and note anything we find that isn’t on it.

Our process

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before the next one starts. If others near Woodrow need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Let building users know which areas are affected
  • Move anything stored against the joints

Request a quote

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

Ask for a quote

Related advice

When to bring in a specialist

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

A short, simple internal joint is often within reach of a maintenance team. 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.

Fire stopping around Woodrow: what changes locally

At about 26 miles from central London, Woodrow is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. 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. What we install is set by the specification, and it goes in to the tested detail.

For an estates team at a campus like Buckinghamshire New University, 1.6 miles to the north of Woodrow, summer M&E works are usually followed by a round of penetration sealing. Theatres, wards and plant rooms at sites like Amersham Hospital (to the east of Woodrow) all have compartment walls crossed by services. In a building such as Church of the Holy Trinity, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Woodrow is about 2 miles south-west of Amersham, in Buckinghamshire. Businesses, contractors and managing agents in Woodrow use us for work on service penetrations. We work across 308 places in Buckinghamshire. Our Reading page has more on work in that area.

Work on service penetrations is covered throughout HP7. Sites close to Woodrow are covered too, including Penn Street (1 mile west), Mop End (1 mile north-west), Winchmore Hill (1 mile south), Coleshill (1 mile south-east) and Beamond End (1 mile west). A short drive away, we cover Aylesbury (13 miles north-west), High Wycombe (5 miles south-west), Chesham (4 miles north-east), Marlow (8 miles south-west), Beaconsfield (3 miles south) and Chalfont St Peter (5 miles south-east).

Landmarks near Woodrow

Around Woodrow, our work takes us to commercial buildings near Amersham Hall, Holmer Green Senior School and Queen's Head Public House and the streets around them. The closest station to Woodrow is Amersham station, about 2.1 miles north-east. A little further out are Amersham Fair Organ Museum (2.7 miles north-east) and Amersham Hospital (1.3 miles east). For a walk, there’s Gomm's Wood.

Map of Woodrow © OpenStreetMap contributors

Leave it or put it right?

The longer openings stay, the more there tend to be: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. Converted and older buildings near places like Woodrow tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

Why appoint us

  • Commercial sealant work since 2005
  • Fixed quotes based on photographs, drawings or a visit
  • Our applicators hold CSCS cards
  • Fully insured, including public liability cover

See what affects the cost and how we’re accredited.

Accreditations

Trusted. Accredited. Insured.