Fire Stopping in Worthy Down
Fire-rated and intumescent sealing of service penetrations and linear gaps in Worthy Down and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Expanding foam used as fire stopping
- Damaged fire seals in risers and voids
- Unsealed penetrations discovered above suspended ceilings
Need fire stopping in Worthy Down?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Do you need fire stopping in Worthy Down?
Plenty of openings were simply never closed, often hidden above suspended ceilings or behind boxing. They come to light during inspections, refits or when another trade lifts a tile.
Things that typically lead to an enquiry:
- Fire-stopping items raised at inspection or handover
- Open linear gaps along the top of fire-resisting walls
- Damaged fire seals in risers and voids
- Unsealed openings around new pipes and cables
Large healthcare estates like Royal Hampshire County Hospital (3.5 miles south of Worthy Down) change their services often, so penetration seals are worth checking after M&E work.
Comparing quotes
- Whether their applicators hold CSCS cards
- Their approach to joint depth and backing
- Whether primer will be used where the manufacturer specifies it
- Whether old or failed sealant will be cut out, not overlaid
About our fire stopping in Worthy Down
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. The enquiries we see most involve unsealed openings around new pipes and cables and builders’ foam or ordinary silicone in compartment walls, across joints between fire-resisting walls and floors, linear gaps at wall heads and service gaps in risers. For commercial sealant work in Worthy Down, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Smaller places such as Worthy Down 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.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Place
- Worthy Down (SO21)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. On site, the work usually takes anything from one day to a planned run of visits, depending on the number of seals and the access, and we clear our waste as we work. If others near Worthy Down need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Have the specification and drawings to hand
- Let us know about inductions and permits
- Share your working hours and any access restrictions
Quotes
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or email drawings and photos.
Read more
General trades versus a specialist
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Compartment walls and floors in Worthy Down
Central London is about 60 miles from Worthy Down. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. We install whatever has been specified, to the product’s tested detail.
Older community buildings such as St Margaret's that have been rewired or given new heating can have service gaps through walls worth checking against the specification. For a unit at a site such as Beeches Industrial Park (1.9 miles west of Worthy Down), new power or data runs between office and warehouse can breach a compartment wall.
Worthy Down is about 4 miles north of Winchester, in Hampshire. Across the SO21 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Our Hampshire coverage takes in 723 places, large and small. Our Southampton page has more on work in that area.
Postcode districts covered here: SO21 for service penetrations. Among the streets we cover are Coopers Close, Coate Drive and Wellesley Drive. Sites close to Worthy Down are covered too, including South Wonston (1 mile north), Springvale (2 miles south-east), Crawley (3 miles west), Sutton Scotney (3 miles north) and Stoke Charity (3 miles north-east). Nearby towns on our patch include Basingstoke (15 miles north-east), Winchester (4 miles south), Eastleigh (10 miles south), Andover (9 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south).
Local landmarks in Worthy Down
Recent enquiries here include premises near Henry Beaufort School. The nearest railway station is Winchester station, about 3.2 miles south of the centre. Nearby you will also find Royal Hampshire County Hospital (3.5 miles south) and Royal Observer Corps Museum (2.7 miles south-east). Open spaces near Worthy Down include Winnall Moors.
How the job changes by surface
Plastic pipes
Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail, but many need a collar or wrap. We check the pipe material and diameter against the detail before we start.
Risers and ceiling voids
Voids hide a lot of unsealed openings. We work through the areas on your schedule methodically and tell you about openings outside the list.
Leave it or put it right?
A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail, and doing it once, properly, is cheaper. Around Worthy Down, it’s better to renew all the failing joints at once, rather than one at a time. Send photographs of each area and we’ll quote for the lot.
There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Why choose Mastic Doctor in Worthy Down
- One contact handling all your sites
- Old sealant cut out, never sealed over
- CHAS accredited contractor
- Commercial sealant work since 2005
Read our cost guide and how we’re accredited.
Questions we are asked in Worthy Down
Is Beeches Industrial Park, near Worthy Down, within your area?
Yes. Our area takes in Worthy Down and its surroundings, with estates and business parks such as Beeches Industrial Park included. A few photos and the unit address let us price the work.
Can work at a site such as University of Winchester fit around teaching?
Yes, holiday working periods are the norm on campus jobs. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Is colour matching possible?
That depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Does the weather affect the work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
How do you deal with asbestos in old sealant?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Also near Worthy Down
Also in Worthy Down
What affects the price in Worthy Down
Quotes vary with the job. Expect it to depend on:
- Induction, permit and paperwork requirements
- Which sealant the job calls for
- How accessible the joints are
- Joint width, depth and condition
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- Whether an asbestos survey exists
- Anything awkward about access or site hours
- Drawings or a marked-up plan, if available
- What the building is and how it’s used
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or email drawings and photos if you’d rather talk the job through.