Hertfordshire · England
Fire-rated sealant in Burnham Green, Hertfordshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Burnham Green. Fully insured, ARBOMaster approved and guaranteed for a year.
- Fire stopping disturbed by later work
- Gaps where walls meet ceilings or slabs
- Fire seals that have cracked with movement
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
How we handle fire rated sealant in Burnham Green
Bigger jobs can be worked through in stages, flat by flat or floor by floor, noting the locations and products as we go. It gives you a list to keep with the building’s fire safety documents. We work on service penetrations, flats & HMOs and plasterboard & masonry, and people most often call us about joints picked up in a fire-stopping survey and gaps left after a refit or conversion.
In a village or hamlet like Burnham Green, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
Big or small, it’s backed by our one-year guarantee.

- Where
- Burnham Green (AL6)
- Region
- Hertfordshire
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Workplaces and buildings in Burnham Green
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Managing a site like Monk's Walk School? Then fire-stopping around service openings should be restored whenever new services go in.
Burnham Green is about 3 miles north-east of Welwyn Garden City, in Hertfordshire. We carry out fire rated sealant for homes and businesses in Burnham Green and the surrounding area, as part of our work across Hertfordshire. Burnham Green is one of 381 places in Hertfordshire we cover. You can also see our page for London, about 23 miles away.
Our applicators cover all of AL6 for fire rated sealant and the streets around it. Whether your property is on Burnham Close, Burgess Close and Burnham Green Road or a nearby road, we can help. Nearby, we also carry out fire rated sealant in Tewin Wood (1 mile south-east), Harmer Green (1 mile west), Bull's Green (1 mile north-east), Tewin (1 mile south-east) and Oaklands (1 mile north-west). Within a short drive, we also cover Watford (15 miles south-west), Hemel Hempstead (14 miles south-west), Stevenage (5 miles north), St Albans (9 miles south-west), Bishop's Stortford (14 miles east) and Welwyn Garden City (3 miles south-west).
Near you in Burnham Green
Typical jobs here are in homes near Belmont pub, among other places. The closest station to Burnham Green is Welwyn North station, about 1.2 miles south-west. Other landmarks nearby include Datchworth Museum (1.1 miles north) and Queen Elizabeth II Hospital (3.6 miles south). Green spaces nearby include Tewin Orchard and Hopkyns Wood.
What the job involves on each surface
Masonry and concrete
Preparation counts on brick, block and concrete. The gap is cleaned and backed where required.
Linear gaps
Some linear gaps have to cope with movement as well as fire. The product and depth are chosen to suit both from the manufacturer’s details.
When to call us in Burnham Green
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
If you can see any of these, it’s time to have the joints looked at:
- Gaps around pipes and cables through fire-resisting walls
- Holes left by a change of layout
- Cracked or shrunken fire-rated sealant
- Linear gaps at the head of walls
For landlords with property near Welwyn North station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What your quote should include
- When the joint can take water or movement
- How the colour is chosen
- What product goes in the joint
- How the surfaces are prepared before sealing
Nearby places to Burnham Green
What else we do in Burnham Green
Aftercare tips
Looking after new joints is easy:
- Never patch a fire seal with standard sealant
- Plan fire stopping into any work that goes through walls or floors
- Get damaged fire seals looked at promptly
- Check whether a sealant can be painted before decorating over it
File the record of locations and products with your fire safety paperwork. It saves time at the next inspection or assessment.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.
Landlords, agents and businesses in Burnham Green
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
If you manage several properties in or around Burnham Green, several properties can go on one quote. Just tell us the addresses and what each one needs.
Why deal with it now?
Paying for fire stopping that has to be redone is a false economy. Work that doesn’t follow the tested detail may have to come out again once someone inspects it. Older cottages and farmhouses around Burnham Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Tidy, careful work
- Domestic, commercial and hotel work
- A 12-month guarantee on all work
- More than 20 years in sealant work
See our cost guide and our reviews.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for a handful of gaps, and longer for a whole building. In a small place like Burnham Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Getting ready for the visit
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
Getting a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Related advice
FAQs for Burnham Green
Will you come out to Burnham Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Welwyn North station?
Yes. We work for landlords and letting agents as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you do fire sealant around door frames?
Yes. We seal the gap between the frame and the wall with a suitable fire-rated product, to the product’s details. The door leaf and its hardware need a door specialist.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Are you insured?
Yes. We are fully insured.
What’s the difference between intumescent and fire-rated sealant?
Fire-rated is the broad term for sealants tested for fire stopping. Intumescent types expand when heated, and they’re one of the options. The specification and the tested detail decide which is used.
Is the work guaranteed?
Yes. All our work carries a one-year guarantee.
