Surrey · England

Fire-rated sealant in Castle Green, Surrey

Fire rated sealant across Castle Green and nearby, with every bit of old sealant taken out first and a one-year guarantee.

  • Holes left by a change of layout
  • Joints picked up in a fire-stopping survey
  • Linear gaps at the head of walls

Need fire rated sealant in Castle Green?

Work for landlords, hotels and businesses

Landlords and agents in Castle Green can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.

Fire rated sealant in Castle Green

Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it. If you have fire stopping disturbed by later work and new service routes left unsealed after building work, we can help, on plasterboard & masonry, door frames and pipe & cable gaps alike.

For holiday lets, converted business premises or a community building near Castle Green, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

Every job comes with a 12-month guarantee.

Location
Castle Green (GU24)
Region
Surrey
Cover
One year on every job
Price
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

DIY sealant or a professional job?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Castle Green questions

Do you work for landlords with property near Brookwood station?

Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.

Do you cover smaller places like Castle Green?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Will we have a record of what was sealed?

Yes. You get a list of where we worked and what we used to keep with your fire safety documents.

Can you match the sealant colour?

Most of the time, yes. We’ll tell you which colours the right product comes in.

What do you need from me for a quote?

A short description and the location, plus photos if you have them. We’ll ask anything else we need to know.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Is the work guaranteed?

Yes, always. Each job is guaranteed for twelve months, wherever you are.

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.

Leave it or put it right?

An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. Where a wall is exposed, as many are in small places like Castle Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.

Why book with us

  • Over 20 years’ experience
  • Rated 4.9 stars on Google
  • Old sealant always removed completely
  • Quality sealants from Arbo and Everbuild

Take a look at what affects the cost or our reviews.

Commercial buildings in Castle 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, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details.

Community buildings like Church of St Lawrence are part of the picture too: gaps around pipes and cables are worth checking after any building work there. For landlords with property near Brookwood station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Castle Green is about 2 miles north-west of Woking, in Surrey. We provide fire rated sealant to homes and businesses in Castle Green and the surrounding area. Castle Green is one of 395 places in Surrey where we work for fire rated sealant. You can also see our page for Reading, about 18 miles away.

Work in GU24 is quoted and booked the same way as anywhere else. We cover properties on Scotts Grove Road, Guildford Road and Scott's Grove Close. Neighbouring places we cover for fire rated sealant include Penny Pot (1 mile north-west), Coxhill Green (1 mile north-east), Chobham (1 mile north-east), West End (1 mile west) and Bisley (1 mile south-west). Further out, we also cover Guildford (6 miles south), Camberley (5 miles west), Epsom (15 miles east), Farnham (12 miles south-west), Ewell (15 miles east) and Egham (7 miles north-east).

Local landmarks in Castle Green

Locally, jobs take us to homes and businesses close to The Sun Public House, Gordon's School and Milford Green and Coxhill Green. For rail, the closest station is Brookwood station, roughly 2.6 miles south-west of the centre. A little further out are Brookwood Hospital (1.6 miles south) and Chobham Museum (0.8 miles north-east). Not far away are Brookwood Lye.

Map of Castle Green © OpenStreetMap contributors

Honest limits

It helps to know what we cannot do too:

  • Sign-off of the building, which sits with building control or your assessor
  • Walls or floors that weren’t built to resist fire
  • Fire risk assessments, which need a qualified assessor

If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.

Surfaces we seal

  • Service penetrations
  • Plasterboard & masonry
  • Door frames
  • Pipe & cable gaps
  • Flats & HMOs
  • Linear gaps

The process

We keep the work tidy and contained to the joints we are treating, so you can get on with your day. The job generally takes from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Castle Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. Old or unsuitable sealant is cut out and the gap cleaned.
  3. We put in whatever backing or fill the product detail specifies.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Locations and products are noted so you have them on file.

How to prepare

  • Tell us about access, such as stairs, a lift or high-level joints
  • For indoor joints, keep the area dry beforehand if you can
  • Tell us about any water getting in

How to get a quote

Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Advice

Surface by surface

Linear gaps

Head-of-wall gaps are often hidden above suspended ceilings. We work along the whole run so there are no open sections left.

Service penetrations

Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.

When to call us in Castle Green

Sometimes the wrong product was used from the start: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It looks sealed, but it isn’t fire-rated.

Common reasons people contact us include:

  • Open gaps behind door architraves
  • Gaps around pipes and cables through fire-resisting walls
  • Gaps left after a refit or conversion
  • Standard silicone or caulk in a fire-stopping gap

For site and facilities teams at buildings such as St Lawrence CofE (Aided) Primary School, fire-stopping around service openings should be restored whenever new services go in.

Questions to ask before you book

  • Whether they seal over old material or remove it
  • Whether the sealant suits the joint
  • Who does the work, and how experienced they are
  • When the joint can take water or movement

Our hiring checklist

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job