West Berkshire · England
Fire-rated sealant in Ashmansworth, West Berkshire
Problem with your fire-stopping gaps in Ashmansworth? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Unsealed gaps where pipes and cables go through a wall
- Sealant items on a fire risk assessment action list
- Fire seals that have cracked with movement
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Get damaged fire seals looked at promptly
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Include hidden areas like risers in routine checks
- Check whether a sealant can be painted before decorating over it
Any fire seal that’s cut or drilled needs resealing to its tested detail. If you need new services through a sealed wall, plan the fire stopping as part of the job.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole.
Fire rated sealant in Ashmansworth, done properly
We do not assess buildings or decide what fire stopping is needed; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. Common call-outs are for unsealed gaps where pipes and cables go through a wall and sealant items on a fire risk assessment action list, on linear gaps, flats & HMOs and plasterboard & masonry.
Work in a small place like Ashmansworth is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
There’s a 12-month guarantee on every job, large or small.
- Location
- Ashmansworth (RG20)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we are called out for in Ashmansworth
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Signs it’s time to call us include:
- Gaps left after a refit or conversion
- Door frames with gaps between frame and wall
- Gaps filled with a product that is not fire-rated
- Gaps around pipes and cables through fire-resisting walls
For buildings such as Church of St James, service openings in its walls need the right fire-rated sealant, as in any building.
Questions to ask before booking
- Who does the work, and how experienced they are
- Is VAT in the price?
- How long the guarantee is
- Which sealant they’ll use, and why
What happens on the day
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of gaps, and longer for a whole building. In a small place like Ashmansworth, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Before we arrive
- Let us know about parking restrictions
- Clear the area around the work
- Mention if the joints have been sealed before
How to get a quote
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Related advice
Common questions in Ashmansworth
What guarantee comes with fire rated sealant in Ashmansworth?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you cover smaller places like Ashmansworth?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you tell me which gaps need fire stopping?
No. Your fire risk assessor, designer or building control decides that. We apply fire-rated sealant to the requirements they set.
Do you provide details of the products used?
Yes. We record the locations we’ve sealed and the products used to keep with your fire safety documents.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on how many gaps there are. We will give you a better idea when we quote.
Where are you based?
Mr Mastic is based in Crawley. We cover Ashmansworth and the rest of West Berkshire.
Surface by surface
Masonry and concrete
Preparation counts on brick, block and concrete. The gap is cleaned and backed where required before the sealant goes in.
Service penetrations
Service penetrations are where new gaps often appear. We clean out what’s there and reseal to the right depth with backing where the detail needs it.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
What fire rated sealant looks like in Ashmansworth
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.
In and around Ashmansworth, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.
Ashmansworth is about 7 miles south-west of Newbury, in West Berkshire. Our applicators cover fire rated sealant for householders, landlords and businesses in Ashmansworth and the surrounding area, as part of our work across West Berkshire. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. Reading is on our list too, about 21 miles from Ashmansworth.
Every address in RG20 is within our area for fire rated sealant. We also cover Test Valley (1 mile west), Vernham Street (4 miles west), Hell Corner (5 miles north-west), Upper Green (5 miles north-west) and Inkpen Common (5 miles north-west). Larger places within reach include Newbury (7 miles north-east), Thatcham (9 miles north-east), Speenhamland (7 miles north-east), Hungerford (8 miles north-west), Lambourn (14 miles north) and Shaw (7 miles north-east).
Around Ashmansworth
The countryside around Ashmansworth includes Sidown Hill.
Nearby places to Ashmansworth
What else we do in Ashmansworth
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Issuing a fire rating or certificate for a building
- Doors that are not fire doors in the first place
- Construction that doesn’t provide fire resistance on its own
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Linear gaps
- Door frames
- Plasterboard & masonry
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
What affects the cost of fire rated sealant
The price is agreed before any work begins. It takes into account:
- The number and length of the joints
- The type of sealant required
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.
Helping us quote
When you call or email, these details help:
- Where the job is, and your postcode
- How we’d reach the joints
- A few pictures by email, if you can
- Whether it has been sealed before
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.