Hertfordshire · England
Letchworth Fire Rated Sealant
Specialist fire rated sealant for Letchworth: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Open gaps behind door architraves
- Gaps around pipes and cables through fire-resisting walls
- Holes left by a change of layout
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Ask every contractor to reseal any fire stopping they disturb
- Plan fire stopping into any work that goes through walls or floors
- File the fire-stopping record where your assessor can find it
- Keep general-purpose foam and caulk away from fire-stopping gaps
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some can’t, so ask us which we used.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is usually a straightforward job.
How we handle fire rated sealant in Letchworth
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. If you are dealing with open joints along the top of partitions and gaps left after a refit or conversion, we can put it right.
If you look after a school, care home, pub or office in Letchworth, washroom sealant, kitchen joints and fire-rated sealant around service openings all need upkeep. Work can be planned around opening hours where needed.
Every job is covered by our one-year guarantee, wherever you are in Hertfordshire.
- Where
- Letchworth (SG6)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Letchworth
Lots of unsealed gaps appear long after the building was completed. New cables, pipes and data runs go through walls and ceilings and the hole they leave does not always get resealed.
Look out for these signs:
- Open joints along the top of partitions
- Open holes round services passing through fire walls
- Joints picked up in a fire-stopping survey
- Ordinary sealant used where a fire-rated product was needed
For landlords with property near Letchworth Garden City station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before you book
- Is VAT in the price?
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- What insurance they hold
What the job involves on each surface
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
Plasterboard walls
Plasterboard partitions are common in flats, offices and conversions. We use a product tested in that kind of wall.
Also near Letchworth
What else we do in Letchworth
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on how many gaps there are, and the area is left clean. In Letchworth, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
How to get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work and send you a clear quote.
Read more
Letchworth questions
Is Letchworth in your area for fire rated sealant?
Yes, Letchworth is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
Is there a guarantee on fire rated sealant in Letchworth?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Can you give us a record of the work?
Yes. Locations and products are written up when we finish. If you need photos or a set layout, ask when you get a quote.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you offer different sealant colours?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before we start.
Do you take on fire stopping in schools and offices?
Yes. Occupied flats, HMOs, offices and schools are all fine. Out-of-hours work can be arranged if that suits the building.
What affects the cost of fire rated sealant
Every job gets its own quote. This is what makes a difference:
- Whether the work is at height
- Which sealant suits the joint
- The number and length of the joints
- When we can work, for business premises
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
When you contact us, it’s useful to know:
- The rough size of the job
- The type of property
- Photos by email, if that is easy
- Where the property is
If you are in Letchworth and need fire rated sealant, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Fire rated sealant around Letchworth
Letchworth is one of England’s garden cities, planned in the early twentieth century. It has workplaces, shops and schools as well as homes, all with joints that need the right sealant. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a building such as Hillshott Infant School and Nursery, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Church of St Paul, service openings in its walls need the right fire-rated sealant, as in any building.
Letchworth is about 5 miles north of Stevenage, in Hertfordshire. Jobs in Letchworth get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Letchworth is one of 381 towns and villages in Hertfordshire we cover for fire rated sealant. You can also see our page for London, roughly 34 miles from Letchworth.
All of SG6 is covered for fire rated sealant, from the main roads to the quietest streets. You’ll find streets such as Station Road, Willian Church Road and Rowland Way, all of which we cover. Main roads around Letchworth include the A505 and B656, which makes travel easy. Neighbouring places we cover for fire rated sealant include Letchworth Garden City (1 mile west), Norton (1 mile north-east), Willian (1 mile south), Walsworth (2 miles south-west) and Poets Estate (2 miles south-west). Further out, we also cover Stevenage (5 miles south), Welwyn Garden City (12 miles south), Harpenden (12 miles south-west), Hitchin (3 miles south-west), Hatfield (15 miles south) and Hertford (14 miles south-east).
Near you in Letchworth
Locally, jobs take us to homes and businesses close to Norton School, The Highfield School and Three Magnets pub. Letchworth has its own railway station: Letchworth Garden City station. Nearby you’ll also find Fairfield Hospital (1.9 miles north-west) and First Garden City Heritage Museum (less than half a mile south). Not far away are Purwell Ninesprings.
Why deal with it now?
Squirting in whichever sealant is nearest does not make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, so both the product and the method matter. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why us?
- We are fully insured
- A 12-month guarantee on all work
- We leave the area clean and tidy
- 180+ five-star Google reviews
Read our cost guide or what customers say.