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

Dora's Green fire stopping

Planning work on a service penetration in Dora's Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Improvised or mixed-product fire seals
  • Unsealed joints where partitions meet the slab
  • Openings left by services added after handover
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping near Dora's Green

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

Fire stopping for commercial buildings in Dora's Green

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. Site teams most often ask us about unsealed openings around new pipes and cables and fire seals cut back for extra cables and never reinstated, on small duct penetrations where the tested detail allows, linear gaps at wall heads and service gaps in risers. Most enquiries from Dora's Green start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Smaller places such as Dora's Green still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Where
Dora's Green (GU10)
Region
Hampshire
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Why act early in Dora's Green

Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Halls, stores and units around places like Dora's Green may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

Why appoint us

  • One number for every site we cover
  • CHAS accredited contractor
  • Constructionline member
  • Fully insured, including public liability cover

See how commercial sealant jobs are priced and how we’re accredited.

What the job involves on each surface

Cables and cable bundles

New data and power cables are the most common breach we see. We reseal around them to the specified detail.

Linear joints

Head-of-wall gaps, slab edges and wall junctions are linear joints. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed, and we work within it.

Should maintenance staff do it?

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

Compartments and services around Dora's Green

A 2-mile radius around Dora's Green takes in a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Dora's Green has three care or nursing homes no more than 2 miles away. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.

Shop fits in centres such as Farnham Retail Park, 2.4 miles to the east of Dora's Green, can bring new services through fire-resisting walls between units, which then need the specified seal. Office fit-outs on sites such as Coxbridge Business Park, 1.7 miles south-east of Dora's Green, add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it. At a university such as University for the Creative Arts, 1.6 miles south-east of Dora's Green, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.

Dora's Green is about 2 miles north-west of Farnham, in Hampshire. We cover Dora's Green, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 723 places in Hampshire, large and small. There’s a separate page for Reading, roughly 16 miles from Dora's Green.

Work on service penetrations is covered throughout GU10, whatever the building. Sites close to Dora's Green are covered too, including Warren Corner (1 mile north), Redlands (1 mile north-west), Ewshot (1 mile north), Dippenhall (1 mile south) and Crondall (1 mile west). Nearby towns on our patch include Basingstoke (12 miles west), Farnborough (6 miles north-east), Fleet (3 miles north), Aldershot (4 miles east), Alton (8 miles south-west) and Yateley (8 miles north).

Local landmarks in Dora's Green

We work on buildings around Weydon School. Dora's Green’s nearest station is Farnham station, roughly 2.3 miles south-east of the centre. Well-known places in the area include Powderham Castle (1.1 miles south-west) and Museum of Farnham (1.8 miles south-east). For a walk, there’s Farnham Park and Beacon Hill.

Map of Dora's Green © OpenStreetMap contributors

What we can’t put right

Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:

  • Reviewing a building’s overall fire safety
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Walls or floors that aren’t fire-resisting to begin with

If in doubt, call 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

Joints and surfaces we work on

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

Questions about Dora's Green

Can work in a care setting near Dora's Green go ahead while residents are there?

Yes. We work around residents’ routines, a room or two at a time. Tell us about any infection-control or safeguarding requirements and we’ll work to them.

Is a smaller place like Dora's Green outside your area?

No. Places such as Dora's Green are covered as much as the big towns. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Is any job too small?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

Do you seal on top of existing sealant?

No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

When can the area be used after sealing?

We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.

What do you charge?

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

Do you take on multi-site work?

Yes. Several buildings can share a single quote, and you deal with one contact throughout.

Diagnose, treat, sign off

Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a building around Dora's Green, 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. We read the specification, drawings or penetration schedule you send.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  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. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Before we start on site

  • Point out parking and an unloading spot
  • Agree which areas must stay open
  • Send your site hours and access windows

Request a quote

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

Get a quick quote

Advice

How the quote is worked out

What shapes the price:

  • Specialist products, such as fire-rated or hygienic sealants
  • Location, for remote and island sites
  • Any access equipment needed
  • Quantities, in metres or numbers

Pricing service penetrations depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.

What to include in your enquiry

Diagnosis starts before we arrive. Tell us:

  • Asbestos survey details if the building is older
  • Whether the building will be occupied during the work
  • When you need the work done
  • Anything awkward about access or site hours

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or send details through our quote form.

Accreditations

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