Windsor and Maidenhead · England
Fire-rated sealant in Old Windsor, Windsor and Maidenhead
Fire rated sealant for Old Windsor, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps flagged on a fire risk assessment
- Door frames with gaps between frame and wall
- Gaps where walls meet ceilings or slabs
How we handle fire rated sealant in Old Windsor
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. We work on flats & HMOs, plasterboard & masonry and door frames, and people most often call us about gaps around pipes and cables through fire-resisting walls and new service routes left unsealed after building work.
Commercial work around a smaller place like Old Windsor generally 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.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Old Windsor (SL4)
- Region
- Windsor and Maidenhead
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How it works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours for a handful of gaps, and longer for a whole building, depending on the amount of work. For a job in Old Windsor, 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.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
Get a quote
If you’re in Old Windsor and need fire rated sealant, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Signs you need fire rated sealant in Old Windsor
Lots of unsealed gaps appear long after the building was completed. New cables, pipes and data runs go through walls and ceilings and the hole they leave does not always get resealed.
These are the problems we’re asked about most:
- Seals cut through by electricians, plumbers or data installers
- Holes left by a change of layout
- Gaps where walls meet ceilings or slabs
- Ordinary sealant used where a fire-rated product was needed
If you look after a church, hall or community building such as St Luke, older buildings that have had new heating or wiring often have service gaps worth checking.
Before you book anyone
- Who turns up on the day
- Whether the sealant suits the joint
- The length of the guarantee
- What the cure time is
When it isn’t the sealant
It helps to know what we can’t do:
- Doors that are not fire doors in the first place
- Certifying a building or signing off its fire safety
- Big openings where sealant alone isn’t the tested solution
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Door frames
- Service penetrations
- Linear gaps
- Pipe & cable gaps
- Plasterboard & masonry
- Flats & HMOs
Commercial buildings in Old Windsor
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 are given, installing the product to its tested details.
Letting a property close to Sunnymeads station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. For site and facilities teams at buildings such as King's Court First School, fire-stopping around service openings should be restored whenever new services go in.
Old Windsor is about 2 miles north-west of Egham, in Windsor and Maidenhead. Old Windsor gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Windsor and Maidenhead coverage runs to 57 places, and Old Windsor is one of them. Our Reading page covers work nearby (17 miles or so).
Postcode districts we cover here for fire rated sealant: SL4. If you need fire rated sealant at a property on Church Road, Parker Gardens and Gregory Drive or a nearby road, our applicators can take on the job. Being close to the B3021, Old Windsor is simple for us to get to for fire rated sealant. Neighbouring places we cover for fire rated sealant include Wraysbury (1 mile east), Sunnymeads (1 mile north-east), Bishopsgate (1 mile south), Datchet (2 miles north) and Englefield Green (2 miles south). Within a short drive, we also cover Maidenhead (8 miles north-west), Windsor (3 miles north-west), Boyn Hill (8 miles north-west), North Ascot (6 miles south-west), Cookham (9 miles north-west) and Furze Platt (9 miles north-west).
Near you in Old Windsor
Locally, jobs take us to homes and businesses close to St John's Beaumont School, Windsor Great Park and The Fox And Castle Public House, among other places. Old Windsor’s nearest station is Sunnymeads station, about 1.3 miles north-east of the centre. Nearby you will also find Windsor Castle (2.1 miles north-west) and Berkshire Yeomanry Museum (1.6 miles north-west). For a walk, there’s St Ann's Hill and Virginia Water Lake.
Looking after it afterwards
After the cure time, these simple habits help:
- Look in service cupboards and ceiling voids from time to time
- Flag any open gap you spot round a pipe or cable
- Tell trades working in the building that fire seals must be put back
- Take photos of fire stopping before ceilings or boxing go back
Tell other trades that the gaps have been sealed, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.
Questions from Old Windsor
Do you work for landlords with property near Sunnymeads station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do fire rated sealant in Old Windsor?
Yes. Our work covers London and the South East, and Old Windsor is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Can you fill the gap behind a fire door frame?
Yes. We often seal open gaps hidden behind the architrave. The door and its fittings are a separate job for a door specialist.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
How long does the job take?
As a guide, most jobs take anything from a few hours to several days, depending on how many gaps there are. Bigger jobs take longer, and we’ll tell you how long to expect.
Do you guarantee your work?
Yes. There’s a 12-month guarantee on every job, large or small.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Surface by surface
Service penetrations
Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. The sealant is chosen for what passes through and how wide the gap is.
Door frames
A door can only do its job if the gap behind its frame is sealed too. We seal that gap with a fire-rated sealant suited to the frame and wall.
Nearby places to Old Windsor
What else we do in Old Windsor
What happens if it’s left?
Squirting in whichever sealant is nearest doesn’t make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, which is why we match the product and the method to each gap. Around Old Windsor, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Why choose Mr Mastic in Old Windsor
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work