Fire-rated sealing and fire stopping in Down Street, East Sussex
Work needed on a service penetration in Down Street? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Old intumescent sealant that has split away
- Fire-stopping items raised at inspection or handover
- Improvised or mixed-product fire seals
Need fire stopping in Down Street?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Down Street, done properly
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, and they are easy to forget. Those on your schedule are closed with the specified product. If you have fire stopping installed outside its tested range and non-fire-rated filler around services, we can help. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Down Street, that means joint design, primers and backing rod as standard.
A job near Down Street is normally planned around one visit, so send the specification and photos first. Design and sign-off belong to the designer or building control; we install what’s specified.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Down Street (TN22)
- Region
- East Sussex
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Leave fire sealant to cure fully before covering it
- Don’t let anyone top up a fire seal with the wrong product
- Check risers and ceiling voids after each round of works
- Get seals inspected before ceilings and boxing close
Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail.
On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned.
How a job runs
At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Down Street are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
What we need from you
- Share your working hours and any access restrictions
- For older buildings, check the asbestos register before work
- Flag any permit to work we will need
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.
Related advice
General trades versus a specialist
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.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Also near Down Street
Other services in Down Street
Common questions from Down Street clients
Is hospital work, at somewhere like Uckfield Community Hospital, something you do?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Is Down Street off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
What do you charge?
There isn’t a price list, as every site differs. With photographs or drawings, we can give you a fixed quote.
What do BS EN 1366-3 and BS EN 13501-2 mean?
BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Classification follows BS EN 13501-2 as E for integrity and I for insulation, with a time such as EI 60 or EI 120. The rating applies to the product as tested.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Can you reseal penetrations after our M&E works?
Yes. Send the schedule or marked-up drawings and the specified product details and a fixed quote follows. We can follow the services contractor floor by floor.
Why deal with it now?
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is typically a modest job when the openings are accessible. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Halls, stores and units around places like Down Street may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why choose Mastic Doctor in Down Street
- Constructionline member
- Our applicators hold CSCS cards
- Specification-led, product-correct work
- Fully insured, including public liability cover
Take a look at how commercial sealant jobs are priced or our accreditations.
Do you need fire stopping in Down Street?
On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is when untested combinations creep in and later need putting right.
Clients usually get in touch after noticing one or more of the following:
- Expanding foam used as fire stopping
- Unsealed joints where partitions meet the slab
- Seals disturbed by maintenance and left open
- Fire sealant pulled out of the opening
On a hospital site such as Uckfield Community Hospital, 3 miles to the south-east of Down Street, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.
Before you book anyone
- What level of public liability insurance do they hold?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Whether old or failed sealant will be cut out, not overlaid
- Whether primer will be used where the manufacturer specifies it
What affects the price in Down Street
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Distance, for remote addresses
- The product specified
- How accessible the joints are
- Whether old sealant has to be cut out first
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
There’s no need for a formal survey. These details are enough to start:
- Access details, including height
- The asbestos register, for older buildings
- Photos of the joints, close up and from further back
- The site address and postcode
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to give us a call on 01277 525 020 or use the quote form with what you know.
Where services cross fire walls in Down Street
Central London is about 35 miles from Down Street. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail.
Tenant changes at parks like Ashdown Business Park, 0.9 miles east of Down Street, bring new data and services, and openings through fire-resisting walls need the specified seal. For a hotel such as Chequers Hotel, 1.3 miles to the east of Down Street, penetration seals are worth checking after any refit or services upgrade.
Down Street is about 3 miles north-west of Uckfield, in East Sussex. Any commercial site in Down Street is covered, whether it’s a single job or part of a planned programme. Down Street is one of 308 places in East Sussex on our list for service penetrations. Our Brighton page has more on work in that area, about 14 miles away.
We take on service penetrations across the TN22 postcode area, whatever the building. We also cover Maresfield (1 mile east), Budlett's Common (2 miles east), Newick (3 miles south-west), Founthill (3 miles south-west) and Ridgewood (3 miles south-east). Further afield, our area takes in Seaford (15 miles south), Lewes (9 miles south), Hailsham (13 miles south-east), Crowborough (6 miles north-east), Uckfield (3 miles south-east) and Newhaven (14 miles south).
Near you in Down Street
We work on buildings around West Park. Down Street’s nearest station is Uckfield station, about 2.6 miles south-east. Nearby you’ll also find Uckfield Community Hospital (3 miles south-east) and Heaven Farm Museum (2.8 miles north-west). For a walk, there’s Brickfield Meadow.