West Berkshire · England
Fire-rated sealant in Downend, West Berkshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Downend. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints picked up in a fire-stopping survey
- Open holes round services passing through fire walls
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant for homes and businesses in Downend
We don’t assess buildings or decide what fire stopping is needed; your assessor, designer or building control sets that out. What we do is apply the right product to that specification, properly and neatly. We are often asked to deal with open holes round services passing through fire walls and holes left by a change of layout, on linear gaps, flats & HMOs and plasterboard & masonry.
For holiday lets, converted business premises or a community building near Downend, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
You’re covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Where
- Downend (RG20)
- Wider area
- West Berkshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Downend
For anyone letting property in or around Downend, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Questions from Downend
Is Downend in your area for fire rated sealant?
Yes, Downend is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
What guarantee comes with fire rated sealant in Downend?
All our work, in Downend and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
Where are you based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
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.
What fire rated sealant looks like in Downend
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 work to the specification you’re given, installing the product to its tested details.
If you look after a building such as Chieveley Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Downend is about 5 miles north of Newbury, in West Berkshire. Across the RG20 area, we can carry out fire rated sealant at your property. Downend is one of 155 places in West Berkshire where we work. Our Reading page covers work nearby.
We work across the RG20 postcode area for fire rated sealant. That includes homes and businesses on Downend Lane, Bardown and Northfields. If you’re just outside Downend, we cover Chieveley (1 mile south), North Heath (1 mile south-west), World's End (1 mile north-east), Peasemore (2 miles north-west) and Beedon (2 miles north). We also work in nearby towns such as Newbury (5 miles south), Thatcham (5 miles south-east), Burghfield Common (12 miles south-east), Speenhamland (5 miles south), Hungerford (10 miles south-west) and Calcot (12 miles east).
What’s near Downend
Around Downend, our work takes us to homes and buildings near The Wheatsheaf pub and the streets around them. Other landmarks nearby include Hampstead Norris Castle (3.3 miles east) and West Berkshire Community Hospital (4.7 miles south). Open spaces near Downend include Snelsmore Common.
Do you need fire rated sealant in Downend?
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
Most people get in touch after spotting one of these:
- Open gaps behind door architraves
- Open holes round services passing through fire walls
- Gaps filled with a product that isn’t fire-rated
- Seals cut through by electricians, plumbers or data installers
Community buildings like Church of St Mary are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.
Comparing quotes
- What preparation is included
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
- Who does the work, and how experienced they are
Surface by 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 the sealant goes in.
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. We seal it with a product tested for that service and gap size.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Check risers, ceiling voids and cupboards during building checks
- Never patch a fire seal with standard sealant
- Get damaged fire seals looked at promptly
- Tell trades working in the building that fire seals must be put back
Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some cannot.
An open gap isn’t only a fire issue: they also let noise, draughts and sometimes pests through. Dealing with them early helps with all of these.
The process
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before work begins. The work generally takes anything from a few hours to several days, depending on how many gaps there are. Somewhere as small as Downend, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- 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
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
- Clear items away from the joints we are working on
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Read more
Why act early in Downend
Squirting in whichever sealant is nearest does not make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. Where a wall is exposed, as many are in small places like Downend, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and give you a clear price before work begins.
Why choose Mr Mastic in Downend
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
- Domestic, commercial and hotel work
- Over 20 years’ experience
Read what affects the cost or customer reviews.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.