West Berkshire · England
Fire-rated sealant in Mortimer, West Berkshire
Fire rated sealant for Mortimer and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracked or shrunken fire-rated sealant
- Ordinary sealant used where a fire-rated product was needed
- Gaps around pipes and cables through fire-resisting walls
How we handle fire rated sealant in Mortimer
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 open holes round services passing through fire walls and gaps filled with a product that isn’t fire-rated, we can put it right.
Community buildings, schools and small businesses around places like Mortimer have washrooms and kitchens that see a lot of use. Their sealant and fire-rated joints are as important as those in any bigger building.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Mortimer (RG7)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes from a few hours to a few days, depending on the number of gaps and the access. A visit to Mortimer is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed 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.
Getting ready for the visit
- Mention any tricky access
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or email us.
Related advice
Why deal with it now?
For some gaps, sealant isn’t the right answer and another system is needed. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. We will say so if a gap needs something other than sealant. In a smaller place like Mortimer, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost 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 Mortimer
- Approved under the ARBOMaster scheme
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
- 12-month guarantee on every job
Take a look at how sealant jobs are priced or what customers say.
When something else is needed
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Certifying a building or signing off its fire safety
- Large holes that need a different fire-stopping system
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
- Linear gaps
- Door frames
- Pipe & cable gaps
What affects the quote in Mortimer
For a quick quote, just ask. What matters most is:
- The product the joint needs
- Mould in or behind the old joints
- The number and length of the joints
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the property is
- The rough size of the job
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
If you’re in Mortimer and need fire rated sealant, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
What the job involves on each surface
Masonry and concrete
Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before applying the sealant.
Door frames
Frame gaps are usually hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. 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.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Photograph sealed gaps before they’re covered up
- Never patch a fire seal with standard sealant
- Check risers, ceiling voids and cupboards during building checks
- Flag any open gap you spot round a pipe or cable
Follow the cure time we give you before decorating over the sealant. Not every fire-rated sealant takes paint, so ask us which we used.
A flagged gap shouldn’t wait for the next assessment. Have it sealed, then keep the record so the item can be closed.
Questions from Mortimer
Is Mortimer within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Mortimer in your area for fire rated sealant?
Yes, Mortimer is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Will you assess my building’s fire safety?
No. That’s for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Do you provide details of the products used?
Yes. You get a list of where we worked and what we used for your files.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Can you fill the gap behind a fire door frame?
Yes. The joint between frame and wall is sealed with a fire-rated sealant. The door, its seals and closer are for a door specialist.
Towns and villages near Mortimer
What else we do in Mortimer
Fire rated sealant around Mortimer
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Community buildings like Mortimer Methodist Church are part of the picture too: gaps around pipes and cables are worth checking after any building work there. Schools such as Mortimer St John's C.E. Infant School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices. If you let a flat or house near Mortimer station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Mortimer is about 4 miles north-east of Tadley, in West Berkshire. Homes, rented property, offices and hotels in Mortimer can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Mortimer is one of 155 places in West Berkshire we cover for fire rated sealant. We also work in Reading, around 6 miles away.
Work in RG7 is quoted and booked the same way as anywhere else. You’ll find streets such as The Street, Croft Road and Leigh Field, all of which we cover. Nearby, we also carry out fire rated sealant in Stratfield Mortimer (1 mile east), Mortimer West End (1 mile south-west), Goddard's Green (2 miles north-east), Burghfield Common (2 miles north) and Wokefield (2 miles north-east). Larger places within reach include Newbury (11 miles west), Thatcham (8 miles west), Speenhamland (11 miles west), Spencers Wood (4 miles east), Calcot (5 miles north) and Shaw (11 miles west).
Landmarks near Mortimer
Locally, jobs take us to homes and businesses close to The Willink School, The Willink School and Padworth Common Local Nature Reserve. Mortimer’s nearest station is Mortimer station, about 1.4 miles east of the centre. Well-known places in the area include Calleva Museum (2 miles south-west) and Beaumys Castle (3.7 miles east). For a walk, there’s Hosehill Lake.