Hertfordshire · England
Sopwell Fire Rated Sealant
We cover Sopwell for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Linear gaps at the head of walls
- Unsealed gaps around fire door frames
- Seals cut through by electricians, plumbers or data installers
Fire rated sealant in Sopwell, done properly
We often work from an action list drawn up by a fire risk assessor for buildings in Sopwell. Send us the list or the survey and we will quote for the fire-rated sealant work on it. Common call-outs are for gaps where walls meet ceilings or slabs and gaps around pipes and cables through fire-resisting walls, on service penetrations, pipe & cable gaps and flats & HMOs.
In a smaller place like Sopwell, commercial jobs tend to be smaller buildings: a pub, a surgery, a school, a shop or a few business units. The work is the same as in a big building, just on a smaller scale.
A one-year guarantee comes as standard.

- Place
- Sopwell (AL1, AL2, AL3)
- Region
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of gaps, and longer for a whole building and we leave things clean and tidy. For a job in Sopwell, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- We put in whatever backing or fill the product detail specifies.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Before we arrive
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
Ask for a quote
We quote each job on its own. Simply call 0345 464 0079 or drop us an email and describe the job.
Advice
When it isn’t the sealant
It helps to know what we cannot do too:
- Deciding what fire stopping a building needs
- Large holes that need a different fire-stopping system
- Fire doors that need new seals, closers or hardware
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Flats & HMOs
- Plasterboard & masonry
- Pipe & cable gaps
- Linear gaps
- Service penetrations
- Door frames
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Ask which product was used before you paint
- Keep pictures of seals that will be hidden
- Allow for resealing whenever new services are run
- Keep the record of products and locations with your fire safety documents
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Places near Sopwell
More services for Sopwell
What affects the quote in Sopwell
The quote reflects the job in front of us. We look at:
- Access and height
- The product the joint needs
- The size of the job
- Working hours on commercial sites
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
What to tell us for a quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
Want a quote for fire rated sealant? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Sopwell questions
Do you take on hotel work around Sopwell?
Yes. Hotel and guest-house work is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Do you work for landlords with property near St Albans Abbey station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job.
Is standard sealant good enough for a fire gap?
No. Ordinary silicone, caulk or foam is not tested as fire stopping. If it’s been used, we remove it and use the right product.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Commercial buildings in Sopwell
There are hotels and other places to stay in and around Sopwell. Hotel work can be planned room by room, with out-of-hours working where needed. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, 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.
Schools such as Mandeville Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in. If you look after a church, hall or community building such as St. Julian's Church, older buildings that have had new heating or wiring often have service gaps worth checking.
Sopwell is about 1 mile south of St Albans, in Hertfordshire. Every kind of property in Sopwell is covered for fire rated sealant, old or new, large or small. Every job comes with our one-year guarantee. Our Hertfordshire coverage runs to 381 places, Sopwell among them. There’s also a page for London, roughly 19 miles from Sopwell.
We cover every part of AL1, AL2 and AL3 for fire rated sealant and the streets around it. Whether your property is on Nuns Lane, Jenny Lane and Vesta Avenue or anywhere close by, our applicators can take on the job. We also cover the places around Sopwell: St Stephens (1 mile north-west), St Albans (1 mile north), Park Street (1 mile south), Chiswell Green (1 mile south-west) and Frogmore (1 mile south). Within a short drive, we also cover Watford (6 miles south-west), Hemel Hempstead (6 miles west), Stevenage (13 miles north-east), Welwyn Garden City (7 miles north-east), Harpenden (5 miles north) and Hitchin (15 miles north).
Around Sopwell
Around Sopwell, our work takes us to homes and buildings near Verulamium Park, Marlborough Science Academy and North Western pub, among other places. Sopwell’s nearest station is St Albans Abbey station, about 0.6 miles north-west. Nearby you will also find Napsbury Hospital (1.5 miles south-east) and The Maltings (0.9 miles north). Open spaces near Sopwell include Grebe House Wildlife Garden and Verulamium Lake.
Do you need fire rated sealant in Sopwell?
Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It may look fine, but it isn’t a fire-rated seal.
These are the problems we are asked about most:
- Gaps around pipes and cables through fire-resisting walls
- Damaged fire sealant left by other trades
- Sealant items on a fire risk assessment action list
- Holes left by a change of layout
If you let a flat or house near St Albans Abbey station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
- What product goes in the joint
- Whether they’re fully insured
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
