Oxfordshire · England
Fire Rated Sealant in Boars Hill
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Boars Hill and across Oxfordshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Seals cut through by electricians, plumbers or data installers
- Gaps where walls meet ceilings or slabs
- Unsealed gaps around fire door frames
About our fire rated sealant in Boars Hill
Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. Each gap is sealed to the product maker’s tested detail for its size and substrate, and we can record what went where. We work on door frames, service penetrations and flats & HMOs, and people most often call us about gaps flagged on a fire risk assessment and gaps filled with a product that isn’t fire-rated.
If you have holiday lets, a converted barn used for business or a community building near Boars Hill, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.

- Place
- Boars Hill (OX1)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Commercial buildings in Boars Hill
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 Oxford station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For buildings such as Church of St Peter, older buildings that have had new heating or wiring often have service gaps worth checking. Managing a site like Wootton St Peter's Church of England Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Boars Hill is about 3 miles north of Abingdon-on-Thames, in Oxfordshire. Whether you are in the middle of Boars Hill or further out, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Across Oxfordshire, we cover 443 places, Boars Hill among them.
Postcode districts we cover here for fire rated sealant: OX1. Fire rated sealant is available to properties on Berkeley Road, Jarn Way and Bedwells Heath and the roads around them. Close by, we work in Bayworth (1 mile south-east), Chilswell (1 mile north), Sunningwell (1 mile south), Hinksey Hill (1 mile north-east) and Harcourt Hill (2 miles north). Larger places within reach include Oxford (4 miles north-east), Didcot (8 miles south), Bicester (14 miles north-east), Abingdon-on-Thames (3 miles south), Witney (10 miles north-west) and Carterton (13 miles west).
Landmarks near Boars Hill
Around Boars Hill, our work takes us to homes and buildings near Raleigh Park, The Fox pub and Matthew Arnold School, among other places. The nearest railway station is Oxford station, about 2.8 miles north of the centre. Nearby you’ll also find The Story Museum (2.8 miles north-east) and Westgate Shopping Centre (2.8 miles north-east). Open spaces near Boars Hill include Lashford Lane Fen and Harcourt Hill.
What happens if it’s left?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. Around Boars Hill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
Why choose Mr Mastic in Boars Hill
- Sanitary silicone with an anti-fungal additive in wet areas
- ARBOMaster approved applicator
- 180+ five-star Google reviews
- Full insurance on every job
Read our cost guide and what customers say.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
When it isn’t the sealant
New sealant cannot fix everything, and we’ll tell you before any work starts. Sealant won’t put right:
- Deciding what fire stopping a building needs
- Fire doors that need new seals, closers or hardware
- Walls or floors that weren’t built to resist fire
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Where we work in Boars Hill
- Plasterboard & masonry
- Flats & HMOs
- Service penetrations
- Linear gaps
- Pipe & cable gaps
- Door frames
How we quote for fire rated sealant
Call for a quick quote. The main things that affect it are:
- The number and length of the joints
- Working hours on commercial sites
- Mould in or behind the old joints
- Access and height
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- The address or postcode of the job
- A few photos by email, if you can
- How many joints, rooms or windows are involved
- The problem you’ve noticed
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Common questions in Boars Hill
Do you cover smaller places like Boars Hill?
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 Boars Hill in your area for fire rated sealant?
Yes, Boars Hill is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
How long will you be here?
A typical job takes a few hours for a handful of gaps, and longer for a whole building. Your quote will say how long we expect yours to take.
What does fire rated sealant cost?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can you work in occupied buildings?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.
Can I do it myself?
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Towns and villages near Boars Hill
More services for Boars Hill
The process
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes from a few hours to a few days, depending on the number of gaps and the access, including the tidy-up. For a village or hamlet like Boars Hill, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Every job is quoted individually. Simply ring 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
What the job involves on each surface
Masonry and concrete
Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point to make sure it suits the product.
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.
