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

Fire-rated sealing and fire stopping in Onslow Village, Surrey

Looking for fire stopping in Onslow Village? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Snag lists that include open service penetrations
  • Head-of-wall gaps with no fire seal
  • Expanding foam used as fire stopping
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Fire stopping in Onslow Village

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Diagnose, treat, sign off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. What matters most for a job in Onslow Village is a clear list of what needs doing. You’ll then get a fixed price for the work.

  1. We start with your penetration schedule, drawings or specification.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  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

  • Share your working hours and any access restrictions
  • Let us know about inductions and permits
  • Tell staff and tenants when we will be in

Quotes

To get a fixed quote, phone 01277 525 020 or send photos by email with the site address and an outline of the work. You can also send details through our quote form.

Ask for a quote

Read more

Fire stopping in Onslow Village

Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal rather than guesswork. If you have fire seals cut back for extra cables and never reinstated and service penetrations left open after M&E works, we can help, on small duct penetrations where the tested detail allows, cable penetrations and pipe penetrations alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Onslow Village is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Around Onslow Village, penetration and linear seals tend to be one-building jobs. Send the specification, drawings or photos of the openings and we’ll quote to suit.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Onslow Village (GU2, GU3)
Wider area
Surrey
Cover
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

When to call us in Onslow Village

When a seal departs from its tested detail, the evidence no longer covers it. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are the usual culprits.

Most enquiries start with something like this:

  • Penetration schedules that need working through
  • Expanding foam used as fire stopping
  • Unsealed joints where partitions meet the slab
  • Damaged fire seals in risers and voids

For a site team at a college like Guildford College (1.6 miles north-east of Onslow Village), fire-rated sealing is best scheduled after the summer works.

Comparing quotes

  • How the joint faces will be prepared and primed
  • Will RAMS and insurance details be available?
  • How they’ll work around occupants
  • What the guarantee covers, and for how long

How to choose a sealant contractor

What sets the cost

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • How much there is to seal
  • Removal of failed or old sealant
  • The size and state of each joint
  • Access and working height

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

Sending details for a quote

For an accurate fixed quote, we need to understand the site. Send us:

  • Whether the building will be occupied during the work
  • Photos of the joints, close up and from further back
  • Rough lengths or quantities, or drawings if you have them
  • Your programme or deadline

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Compartments and services around Onslow Village

A number of hotels sit less than 2 miles from Onslow Village. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail. Fire stopping of openings and penetrations in England falls under 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. Either way, we install the specified product to its tested detail.

Shop fits in centres such as Ladymead Retail Park, 1.4 miles to the north-east of Onslow Village, can bring new services through fire-resisting walls between units, which then need the specified seal. On estates like Guildford Industrial Estate, which lies north-east of Onslow Village, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.

Onslow Village is about 2 miles south-west of Guildford, in Surrey. We send applicators to Onslow Village for service penetrations. Across Surrey, 379 places are covered, including Onslow Village. For work in that direction, see our Reading page (22 miles or so).

We take on service penetrations across the GU2 and GU3 postcode area, whatever the building. Buildings on Gill Avenue, Farnham Road and Orchard Road are within our area for service penetrations. Onslow Village sits on or close to the A31, useful when we plan access and materials. Nearby places we also cover include Littleton (1 mile south), Wood Street Village (2 miles north-west), Compton (2 miles south-west), Binscombe (2 miles south) and Fairlands (2 miles north). Bigger towns within reach include Woking (6 miles north), Camberley (9 miles north-west), Farnham (9 miles west), Egham (14 miles north), Walton-on-Thames (13 miles north-east) and Dorking (12 miles east).

Around Onslow Village

Around Onslow Village, our work takes us to commercial buildings near Guildford County School, Academy of Contemporary Music and Broadstreet and the streets around them. The closest station to Onslow Village is Guildford station, about 1 mile east of the centre. Nearby you’ll also find Guildford Castle (1.3 miles east) and Guildford Cathedral Treasury (0.7 miles north-east). Green spaces nearby include Pewley Down and Lower Lake.

Map of Onslow Village © OpenStreetMap contributors

Leave it or put it right?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed. A failed joint lets water into a building whatever its size. Catching it early means a reseal rather than repairs.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Why clients in Onslow Village choose us

  • Sealing commercial buildings since 2005
  • Work carried out by CSCS-carded applicators
  • 12 months’ guarantee on every job
  • Failed material removed, not covered up

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

FAQs: Onslow Village

Is Guildford Industrial Estate, near Onslow Village, within your area?

Yes. Estates, retail parks and business parks around Onslow Village, Guildford Industrial Estate among them, are all within reach. A few photos and the unit address let us price the work.

Will you plan work around the academic year at somewhere like University of Surrey - Manor Park Campus?

Yes, holiday working periods are the norm on campus jobs. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Will fire-rated sealant work on every penetration?

No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed, specified by your designer.

How long does a typical visit take?

That varies with the scale of the job, but the work usually takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For bigger or phased jobs, we’ll set out a timescale with the quote.

Is colour matching possible?

Often, 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.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

Do you guarantee your work?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

What the job involves on each surface

Drylining partitions

Drylined fire walls are tested in a particular build-up. The sealant detail has to be tested in that wall type, with the stated board layers.

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance, including keys, permits and any isolations.

Aftercare for building managers

Cleaning and maintenance staff play a part too. Share these points with them:

  • Get seals inspected before ceilings and boxing close
  • Record which product was used where
  • Check with the data sheet before painting over fire sealant
  • Foam or ordinary sealant is never a fire-seal repair

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged and get them dealt with.

Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.

Accreditations

Trusted. Accredited. Insured.