Hampshire · England
Thedden Fire Rated Sealant
Problem with your fire-stopping gaps in Thedden? We remove the old material, prepare the joints and seal them properly.
- Open joints along the top of partitions
- Door frames with gaps between frame and wall
- Joints picked up in a fire-stopping survey
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
About our fire rated sealant in Thedden
We don’t assess buildings or decide what fire stopping is needed; that comes from your fire risk assessor, designer or building control. Our part is applying the specified sealant carefully, to the right depth and with the right backing. Common call-outs are for damaged fire sealant left by other trades and gaps around pipes and cables through fire-resisting walls, across service penetrations, door frames and flats & HMOs.
Work in a small place like Thedden is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
A 12-month guarantee comes as standard.
- Location
- Thedden (GU34)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach, and we’ll tell you.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first so the sealant bonds.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Photograph sealed gaps before they’re covered up
- Include hidden areas like risers in routine checks
- Include fire stopping when you schedule refits
- Tell trades working in the building that fire seals must be put back
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint and we will tell you which one you have.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so you can show it was dealt with.
How we quote for fire rated sealant
Every job gets its own quote. This is what makes a difference:
- The size of the job
- The old material and how stubborn it is
- The type of sealant required
- Whether there’s mould to deal with
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
What we need to know
When you call or email, it’s useful to know:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- Where the property is
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
Commercial buildings in Thedden
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 work to the specification you’re given, installing the product to its tested details.
If you look after a church, hall or community building such as St Peter's, older buildings that have had new heating or wiring often have service gaps worth checking. Letting a property close to Alton station? Then any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Amery Hill School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.
Thedden is about 2 miles west of Alton, in Hampshire. Jobs in Thedden get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 683 places in Hampshire are on our list. We also work in Reading, around 21 miles away.
All of GU34 is covered for fire rated sealant, from the main roads to the quietest streets. If you’re just outside Thedden, we cover Beech (1 mile south-east), Wivelrod (1 mile south-west), Bentworth (1 mile north-west), Holt End (1 mile west) and New Copse (2 miles west). We also work in nearby towns such as Basingstoke (9 miles north), Winchester (14 miles south-west), Farnborough (15 miles north-east), Fleet (12 miles north-east), Aldershot (13 miles north-east) and Petersfield (10 miles south).
What’s near Thedden
The nearest railway station is Alton station, about 2.6 miles east of the centre. Well-known places in the area include Alton Community Hospital (1.6 miles east) and Barton Castle (3.9 miles west). For a walk, there’s King's Hill.
What happens on the day
The work is kept neat and contained to the area we are working on. The job generally takes anything from a few hours to several days, depending on how many gaps there are, and we tell you how long to leave it before we go. Somewhere like Thedden needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your records.
Preparing for the visit
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Clear items away from the joints we are working on
Getting a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Also in Thedden
When something else is needed
It helps to know what we cannot do too:
- Deciding what fire stopping a building needs
- Sign-off of the building, which sits with building control or your assessor
- Openings too large for sealant, which need batts, boards or another system
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
What we seal
- Door frames
- Plasterboard & masonry
- Flats & HMOs
- Service penetrations
- Linear gaps
- Pipe & cable gaps
Landlord and commercial work in Thedden
If you manage several properties in or around Thedden, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Thedden questions
Do you work for landlords with property near Alton station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Thedden?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you work in occupied buildings?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Do you carry out fire risk assessments?
No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.
Do you offer different sealant colours?
Most of the time, yes. We’ll explain which colours are available.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.