Fire stopping in Piccotts End
Fire stopping in Piccotts End, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Unsealed penetrations discovered above suspended ceilings
- Unsealed joints where partitions meet the slab
- Fire stopping installed outside its tested range
Fire stopping in Piccotts End
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Commercial clients in Piccotts End
Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
About our fire stopping in Piccotts End
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. To price a package, call 01277 525 020 or send details through our quote form with the schedule or marked-up drawings. Tell us what records you need and we’ll confirm with the quote. If you’re dealing with open linear gaps along the top of fire-resisting walls and seals that don’t match their tested detail, we can help, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Piccotts End is the same: the right product in a properly prepared joint.
A job near Piccotts End is normally planned around one visit, with the specification and photos sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant.
- Place
- Piccotts End (HP1, HP2)
- Region
- Hertfordshire
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Also near Piccotts End
Also in Piccotts End
Common questions from Piccotts End clients
Do you work on fire-rated sealing in hotels in Piccotts End?
Yes, where fire-rated sealant is the specified product. We match the product to the wall or floor and the services, and say if something other than sealant is needed.
What happens to BS 476 references for fire stopping in Piccotts End?
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 need to see the site first?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you work while the building is occupied?
Yes, with some planning. Tell us your site hours and access windows and we’ll plan around them.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it, flagging anything that needs clarifying.
Do you guarantee your work?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Large openings beyond what any sealant detail covers
- Reviewing a building’s overall fire safety
- Gaps in walls that were never built as compartment walls
If you’re not sure, just speak to us on 01277 525 020 or email drawings and photos and we’ll give you a straight answer.
Joints and surfaces we work on
- Pipe penetrations
- Cable penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
When to bring in a specialist
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
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 the sealant is tooled off neatly. For a building around Piccotts End, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.
- We ask for the product and detail your designer has specified.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Getting the site ready
- Let building users know which areas are affected
- Flag any permit to work we’ll need
- Arrange parking or a loading space
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Advice
What we are called out for in Piccotts End
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls, which then have to be put right.
If one of these sounds familiar, it’s time for a closer look:
- Openings found when ceilings come down for a refit
- Head-of-wall gaps with no fire seal
- Snag lists that include open service penetrations
- Builders’ foam or ordinary silicone in compartment walls
Colleges such as West Herts College, 1 mile south of Piccotts End, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.
Comparing quotes
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Will CSCS-carded applicators be on site?
- Their public liability cover
- How the joint faces will be prepared and primed
Compartments and services around Piccotts End
A 2-mile radius around Piccotts End takes in a number of hotels. 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. Piccotts End sits in or beside Hemel Hempstead, a twentieth-century planned town. Buildings from the planned-town era have been rewired and replumbed over the years, and each change may have left gaps in fire-resisting walls.
Schools such as Galley Hill Primary School and Nursery often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. For a building such as St Mary's Church, new heating or data runs are the usual reason penetrations need sealing.
Piccotts End is about 1 mile north-west of Hemel Hempstead, in Hertfordshire. Any commercial site in Piccotts End is covered. Our Hertfordshire coverage takes in 371 places, large and small. We also cover London, around 25 miles from Piccotts End.
Work on service penetrations is covered throughout HP1 and HP2. Among the streets we cover are Piccotts End Road, Leighton Buzzard Road and Riverbank. Close to Piccotts End, our area also takes in Gadebridge (1 mile south-west), Highfield (1 mile south-east), Warner's End (1 mile south-west), Grovehill (1 mile south) and Woodhall Farm (1 mile south). Nearby towns on our patch include Watford (8 miles south-east), St Albans (6 miles east), Welwyn Garden City (12 miles east), Harpenden (6 miles north-east), Hitchin (15 miles north-east) and Hatfield (11 miles east).
What’s near Piccotts End
We work on buildings around The Old Bell pub, Laureate Academy and Gadebridge Park, among other places. The nearest railway station is Hemel Hempstead station, roughly 2 miles south. Nearby you will also find Redbourn Museum (3.8 miles north-east) and Hemel Hempstead Hospital (1.4 miles south). Not far away are Long Deans.
How the job changes by surface
Masonry and concrete
Block walls and concrete floors are common substrates for penetration seals. Dust and debris are cleared from the opening.
Drylining partitions
Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range and we’ll tell you what the detail says instead.