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

Fire Stopping in Hursley

Fire-rated and intumescent sealing of service penetrations and linear gaps in Hursley and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Seals disturbed by maintenance and left open
  • Hidden openings found during inspections
  • Builders’ foam or ordinary silicone in compartment walls
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping across Hursley

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

What the job involves on each surface

Linear joints

Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers and the installation has to fit inside those limits.

Small ducts

We seal around ducts only within what the tested detail covers. The ductwork, its supports and any dampers are for the ductwork contractor.

Fire stopping for commercial buildings in Hursley

Facilities managers in Hursley often find open service penetrations when ceilings come down for other work. If a specification already covers those walls and floors, we can reseal to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. The enquiries we see most involve head-of-wall gaps with no fire seal and openings found when ceilings come down for a refit, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and pipe penetrations. Searching for sealant specialists in Hursley? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.

Barn and farm-building conversions near places like Hursley often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Our 12-month guarantee is about workmanship, not 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.

Location
Hursley (SO21)
Region
Hampshire
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

How a job runs

On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, and the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. Rural sites near Hursley may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. First we go through the drawings, schedule or specification for the seals.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. Mineral wool or other backing goes in wherever the detail asks.
  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.

What we need from you

  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements
  • Tell us which areas need to stay in use

Getting a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Related advice

Fire-rated sealing for Hursley buildings

For England, the fire stopping of penetrations is dealt with in 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. What we install is set by the specification, and it goes in to the tested detail. Several hotels sit less than 2 miles from Hursley. 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.

Hospital estates such as Wessex Hospital (2.4 miles south-east of Hursley) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Schools such as John Keble Church of England Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. Offices at parks like Sleepy Hollow Business Park (to the south-west of Hursley) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Hursley is about 3 miles north of Chandler's Ford, in Hampshire. Anywhere in SO21, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across Hampshire, 723 places are covered, including Hursley. We also cover Southampton, some 7 miles away.

Commercial sites across SO21 are covered for service penetrations. For a building on Sussex Close, Heathcote Place and Port Lane or nearby, send details and we’ll quote for service penetrations. Just outside Hursley, we also work in Ladwell (1 mile south), Oliver's Battery (2 miles north-east), Compton (2 miles east), Otterbourne (2 miles south-east) and South Down (2 miles east). Further afield, our area takes in Winchester (4 miles north-east), Eastleigh (4 miles south-east), Fareham (15 miles south-east), Andover (13 miles north), Totton (9 miles south-west) and Chandler's Ford (3 miles south).

Landmarks near Hursley

In Hursley, that means premises near Thornden School and The King's Head pub and the streets around them. For rail, the closest station is Shawford station, about 2.7 miles east. Other landmarks nearby include Winchester Castle (3.9 miles north-east) and Royal Hampshire County Hospital (3.6 miles north-east). Green spaces nearby include Twyford Down and Flexford Nature Reserve.

Map of Hursley © OpenStreetMap contributors

What sealant work can’t fix

Being straight saves everyone time. Fresh joints won’t solve:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Fire doors, dampers or other fire safety equipment
  • Plastic pipes whose detail calls for a collar or wrap

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

What we seal

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

What sets the cost

The price varies from site to site. It mainly depends on:

  • How much existing material needs removing
  • Which sealant the job calls for
  • Backing rod, priming and other preparation
  • Working within restricted access windows

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

What to include in your enquiry

We can often quote from photographs and a few details. It helps to include:

  • Photos of the joints, close up and from further back
  • The site address and postcode
  • Rough lengths or quantities, or drawings if you have them
  • When you need the work done

A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or send photos by email to discuss it first.

Keeping the joints sound

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Look above ceilings when tiles are lifted for other jobs
  • Record which product was used where
  • Foam or ordinary sealant is never a fire-seal repair
  • Treat an open penetration as a priority repair

After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail, by someone who knows the system.

Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job.

Questions we are asked in Hursley

Do you work on fire-rated sealing in hotels in Hursley?

Yes, where fire-rated sealant is the specified product. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we will tell you if the detail calls for a collar, wrap or batt instead.

Would you work within a site like Wessex Hospital?

Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.

Do you seal on top of existing sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

How long does a job like this take?

It depends on the scope, 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 will set out a timescale with the quote.

When can you be on site?

Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

Can you send site paperwork?

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

What will the job cost?

We don’t publish prices, because every site is different. Send photographs or drawings and we will price it at a fixed figure.

For managing agents and facilities managers

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Hursley. Several sites can go on one quote, which keeps the paperwork simple.

When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

Accreditations

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