Surrey · England
Fire-rated sealant in Knaphill, Surrey
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Knaphill and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Standard silicone or caulk in a fire-stopping gap
- Linear gaps at the head of walls
- Damaged fire sealant left by other trades
Fire rated sealant in Knaphill, done properly
We can work through a building room by room 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. If you have fire stopping disturbed by later work and open joints along the top of partitions, we can help.
Commercial work around a smaller place like Knaphill usually means a pub, a shop, a school or small business units rather than office blocks. The work is the same as in a big building, just on a smaller scale.
All our work is covered by our one-year guarantee, wherever you are in Surrey.
- Place
- Knaphill (GU21, GU24)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on how many gaps there are. For a job in Knaphill, 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 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.
How to prepare
- Move anything stored near the joints
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Related advice
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Large holes that need a different fire-stopping system
- Assessing a building’s fire safety
- Fire doors that need new seals, closers or hardware
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Linear gaps
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
- Flats & HMOs
- Service penetrations
Places near Knaphill
Also in Knaphill
Knaphill: your questions answered
I let a flat near Brookwood station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is Knaphill within the area you cover?
Yes. Knaphill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Will we have a record of what was sealed?
Yes. We note each location and the product that went in, so you have it on file.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Do you certify the fire stopping?
Ratings and certificates aren’t something we issue. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves; we install to those details and record what we did.
Do you take on fire stopping in schools and offices?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Let us know the building’s hours and we’ll plan the work to suit.
Commercial buildings in Knaphill
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.
For site and facilities teams at buildings such as Knaphill School, fire-stopping around service openings should be restored whenever new services go in. If you let a flat or house near Brookwood station, any gap left by new services in shared walls should be closed with a fire-rated product.
Knaphill is about 2 miles west of Woking, in Surrey. Knaphill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Surrey coverage runs to 395 places, and Knaphill is one of them. Reading is on our list too, around 18 miles away.
Postcode districts we cover here for fire rated sealant: GU21 and GU24. Local streets include Wood Lane, High Street and Barnby Road, and we cover them all. If you are just outside Knaphill, we cover Bisley (1 mile north-west), Sheet's Heath (1 mile south-west), Castle Green (1 mile north), Brookwood (1 mile south-west) and Penny Pot (1 mile north). Within a short drive, we also cover Guildford (5 miles south), Camberley (5 miles west), Epsom (15 miles east), Farnham (11 miles south-west), Egham (8 miles north) and Walton-on-Thames (10 miles north-east).
Local landmarks in Knaphill
Locally, jobs take us to homes and businesses close to Anchor Inn, The Winston Churchill School A Specialist Sports College and Brookwood Lye. The nearest railway station is Brookwood station, roughly 1.4 miles south-west. A little further out are The Peacocks (2.5 miles east) and Brookwood Hospital (within half a mile south). For a walk, there’s Brookwood Lye.
Surface by surface
Plasterboard walls
We check that the board around the gap is sound. Crumbling edges are cleaned back before the sealant goes in.
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each.
Common problems we fix in Knaphill
Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. We see plenty of fire stopping that was hurried.
If you can see any of these, it’s time to have the joints looked at:
- Fire stopping disturbed by later work
- Joints picked up in a fire-stopping survey
- Fire seals that have cracked with movement
- Door frames with gaps between frame and wall
Community buildings like St Hugh of Lincoln's Church are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.
What your quote should include
- Is the old sealant removed completely?
- How much experience the applicator has
- Which colour the sealant will be
- How hidden problems are handled
Why act early in Knaphill
Items left open on a fire risk assessment tend to come back at the next review. Getting them done and written up gives you evidence that the item was dealt with. In an older home around Knaphill, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why book with us
- Any old sealant cut out fully, not covered over
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- 20+ years of sealant experience