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

Fire stopping in Grateley

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

  • Fire sealant pulled out of the opening
  • Unsealed penetrations discovered above suspended ceilings
  • Damaged fire seals in risers and voids
1
Send details
Send the specification, photos or a marked-up plan.
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
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping for businesses in Grateley

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

Grateley: questions and answers

Is Grateley too far out for you?

Not at all. Grateley is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

How does the move away from BS 476 affect penetration seals in Grateley?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

Can you handle several sites?

Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Fire stopping in Grateley, done properly

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it using the product and detail it sets out. With no specification in place, the first step sits with your designer or fire engineer, not with us. If you have improvised or mixed-product fire seals and damaged fire seals in risers and voids, we can put it right, whatever the surface. Facilities teams, main contractors and managing agents in Grateley tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Around smaller places like Grateley, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Where
Grateley (SP11)
Wider area
Hampshire
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Doing it in-house

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.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Building owners, agents and FMs in Grateley

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.

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

Do you need fire stopping in Grateley?

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is when untested combinations creep in and later need putting right.

Most enquiries start with something like this:

  • Head-of-wall gaps with no fire seal
  • Fire-rated sealant that has cracked or shrunk back
  • Hidden openings found during inspections
  • Expanding foam used as fire stopping

In a building such as Church of St Leonard, any service penetration through a fire-resisting wall should be sealed to the specified detail.

What your quote should include

  • Will CSCS-carded applicators be on site?
  • Can the work be phased to keep areas open?
  • How long is the guarantee, and what does it include?
  • Their pre-qualification and accreditations

Our contractor checklist

What sets the cost

To price the job, we consider:

  • Whether old sealant has to be cut out first
  • Quantities, in metres or numbers
  • Travel to remote or island sites
  • Backing rod, priming and other preparation

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

What to include in your enquiry

A few photos plus some basic facts will normally do. It helps to include:

  • The asbestos register, for older buildings
  • Any dates the work must fit around
  • Whether the building will be occupied during the work
  • How the joints are reached, and at what height

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or email a schedule or drawings.

What we can’t put right

A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is any of the following:

  • Approving the work on behalf of building control
  • Large openings beyond what any sealant detail covers
  • Writing the fire-stopping specification

If in doubt, speak to us on 01277 525 020 or use the quote form and we’ll say what we think.

Joints and surfaces we work on

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

Penetration seals near Grateley

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. Grateley is about 69 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.

On a hospital site such as Andover War Memorial Hospital, 5.4 miles to the north-east of Grateley, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. For a school such as Grateley Primary School, penetration sealing fits best at the end of the summer works.

Grateley is about 6 miles south-west of Andover, in Hampshire. Our applicators travel to Grateley for work on service penetrations. Grateley is one of 723 places we cover in Hampshire for service penetrations. Southampton is covered too, around 20 miles from Grateley.

Work on service penetrations is covered throughout SP11, for business premises of every kind. For a building on High Street, Station Road and Hawthorne Close or nearby, we can quote for service penetrations. Just outside Grateley, we also work in Palestine (1 mile south-west), Quarley (1 mile north), Fox (1 mile north-east), Amport (2 miles north-east) and Kentsboro (2 miles south-east). Nearby towns on our patch include Winchester (15 miles south-east), Andover (6 miles north-east), Romsey (14 miles south-east), Hyde (15 miles south-east), Tidworth (5 miles north-west) and Weeke (14 miles south-east).

Local landmarks in Grateley

Around Grateley, our work takes us to commercial buildings near The Plough Inn, among other places. The closest station to Grateley is Grateley station, about 0.9 miles south-west of the centre. Well-known places in the area include Andover War Memorial Hospital (5.4 miles north-east). Not far away are Winterbourne Downs RSPB reserve and Quarley Hill.

Map of Grateley © OpenStreetMap contributors

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Rural sites near Grateley may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. We start with your penetration schedule, drawings or specification.
  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. 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

  • Move anything stored against the joints
  • Tell us what induction or permit system the site runs
  • Explain the parking and delivery arrangements

Get a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Ask for a quote

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