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

Fire-rated sealing and fire stopping in Stroud Common, Surrey

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

  • Service penetrations left open after M&E works
  • Improvised or mixed-product fire seals
  • Fire seals cut back for extra cables and never reinstated
1
Send details
Tell us about the site, with photos if you have them.
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping for Stroud Common sites

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

Diagnose, treat, sign off

At the end of each section, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. For a building around Stroud Common, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Improvised fillers and failed sealant are removed.
  4. Mineral wool or other backing is fitted where required.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Preparing the site

  • Move anything stored against the joints
  • Send your site hours and access windows
  • Confirm the product named in the specification

Ask for a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Related advice

About our fire stopping in Stroud Common

Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. We close the openings listed on your schedule, using the specified sealant and detail. Site teams most often ask us about fire sealant pulled out of the opening and penetration schedules that need working through, on joints between fire-resisting walls and floors, cable penetrations and pipe penetrations. Whoever orders the work in Stroud Common, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.

Rural conversions around Stroud Common can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Stroud Common (GU5)
Wider area
Surrey
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Fire-rated sealing for Stroud Common buildings

Central London is about 29 miles from Stroud Common. Office refits around the commuter belt bring new cabling through fire-resisting walls. 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. Our part stays the same: the specified product, installed to its tested detail.

For a hospital such as St. Luke’s Hospital, 4.6 miles north-west of Stroud Common, penetration sealing is normally phased ward by ward, with infection-control rules agreed first. Industrial units on estates such as Manfield Park Industrial Estate (to the south of Stroud Common) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.

Stroud Common is about 6 miles south-east of Guildford, in Surrey. Across the GU5 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 379 places across Surrey fall within our area, Stroud Common among them. We also cover Reading, around 27 miles from Stroud Common.

If you need fire stopping in GU5, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Streets here include Stroud Lane and Church Hill, and sites on any of them can send details for a fixed quote. We also cover Shamley Green (1 mile north-west), Rowly (1 mile south), Grafham (1 mile south-west), Birtley Green (2 miles west) and Wonersh (2 miles north-west). Bigger towns within reach include Guildford (6 miles north-west), Woking (10 miles north), Camberley (14 miles north-west), Epsom (15 miles north-east), Horley (15 miles east) and Redhill (15 miles east).

Near you in Stroud Common

Recent enquiries here include premises near Cucknell's Wood and Bricklayers Arms. The nearest railway station is Chilworth station, roughly 2.7 miles north of the centre. Well-known places in the area include St. Luke’s Hospital (4.6 miles north-west) and Guildford Castle (4.7 miles north-west). For a walk, there’s Silent Pool and St Martha's Hill and Colyer's Hanger.

Map of Stroud Common © OpenStreetMap contributors

Cost factors for service penetrations

What shapes the price:

  • Whether old sealant has to be cut out first
  • Quantities, in metres or numbers
  • How accessible the joints are
  • Travel to remote or island sites

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

What to include in your enquiry

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

  • Specification clauses that apply
  • The postcode of the building
  • The type of building and who uses it
  • 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’ll fill any gaps with a visit.

When to call us in Stroud Common

Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped and the opening isn’t always resealed.

What tends to prompt an enquiry:

  • Old intumescent sealant that has split away
  • Expanding foam used as fire stopping
  • Head-of-wall gaps with no fire seal
  • Seals that don’t match their tested detail

In a school such as Wonersh and Shamley Green CofE Aided Primary School, fire-rated sealant goes in around service penetrations where it is specified.

What your quote should include

  • Their approach to joint depth and backing
  • How long is the guarantee, and what does it include?
  • Will RAMS and insurance details be available?
  • Who will actually carry out the work

Choosing a commercial sealant contractor

For managing agents and facilities managers

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

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

Questions about Stroud Common

Is Stroud Common off your patch?

No. Places such as Stroud Common are covered as much as the big towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

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

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Do you offer coloured sealant?

It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

When can you be on site?

The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.

Can you quote from photos?

It depends on the job. Simple work can often be priced from photos, and bigger or more complex jobs typically get a visit.

How long does a typical visit take?

We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.

Are you insured?

Yes. We’re fully insured, and the certificate can go with your quote.

When something else is needed

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Walls or floors that aren’t fire-resisting to begin with
  • Signing off or certifying a building’s fire stopping

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

Where we work in Stroud Common

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

How the job changes by surface

Small ducts

We seal around ducts only within what the tested detail covers. Dampers and ductwork systems themselves are outside our work.

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.

Accreditations

Trusted. Accredited. Insured.