Oxfordshire · England
Fire Rated Sealant in Didcot
Professional fire rated sealant in and around Didcot, with every bit of old sealant taken out first and a 12-month guarantee.
- Fire stopping disturbed by later work
- Joints picked up in a fire-stopping survey
- Gaps left after a refit or conversion
Fire rated sealant in Didcot, done properly
We do not assess buildings or decide what fire stopping is needed; that comes from your fire risk assessor, designer or building control. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on service penetrations, pipe & cable gaps and flats & HMOs, and the jobs we see most are holes left by a change of layout and open joints along the top of partitions.
In a town like Didcot, commercial work can mean offices, shops, schools, surgeries or small business units. Each has washrooms, kitchens and service openings through walls that need the right sealant.
Each job carries a 12-month guarantee, large or small.
- Place
- Didcot (OX11)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why deal with it now?
For some gaps, sealant is not the right answer and another system is needed. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. If a gap isn’t suitable for sealant, we’ll tell you. In Didcot, as anywhere, most leaks start as a small gap in a joint, and they’re far easier to fix early.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why book with us
- 12-month guarantee on every job
- 20+ years of sealant experience
- Homes, businesses and hotels
- Full insurance on every job
Take a look at how sealant jobs are priced and customer reviews.
What we cannot put right
We’ll always be straight with you, so here’s what new sealant will not do:
- Sign-off of the building, which sits with building control or your assessor
- Fire risk assessments, which need a qualified assessor
- Big openings where sealant alone is not the tested solution
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Where we work in Didcot
- Linear gaps
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
The process
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of gaps, and longer for a whole building. In Didcot, parking is rarely complicated, though it helps to know about driveways or restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- We plan the order of work and access, floor by floor or flat by flat.
- 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
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Move anything stored near the joints
Get a quote
We quote each job on its own. Simply phone 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Advice
Aftercare tips
So the new joints stay in good condition:
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Tell trades working in the building that fire seals must be put back
- Include hidden areas like risers in routine checks
- Include fire stopping when you schedule refits
Avoid covering a sealed gap with anything that is not part of the tested detail. If it needs repair, use the same type of product. We can tell you which product we used.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Get it sealed and recorded so the item can be closed.
Places near Didcot
More services for Didcot
Landlords, agents and businesses in Didcot
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What the job involves on each surface
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
Service penetrations
New gaps tend to show up where services have been added. Old or unsuitable filler comes out before the right sealant goes in over any backing the detail calls for.
Fire rated sealant in Didcot: local notes
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, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
For landlords with property near Didcot Parkway station, any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Manor Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as Church of All Saints, older buildings that have had new heating or wiring often have service gaps worth checking.
Didcot is about 10 miles south of Oxford, in Oxfordshire. We carry out fire rated sealant for homes and businesses in Didcot, as part of our work across Oxfordshire. Didcot is one of 443 towns and villages in Oxfordshire we cover for fire rated sealant. For nearby work, see our Oxford page (10 miles or so).
Here we cover the OX11 postcode area for fire rated sealant. You will find streets such as Station Road, Market Place and High Street. Didcot sits on or near the A4130 and B4016, which makes travel easy. Nearby, we also carry out fire rated sealant in Great Western Park (1 mile west), Appleford-on-Thames (2 miles north), Milton (2 miles north-west), Sutton Courtenay (2 miles north-west) and Long Wittenham (3 miles north-east). We also work in nearby towns such as Oxford (10 miles north), Abingdon-on-Thames (5 miles north), Thame (15 miles north-east), Wantage (8 miles west), Grove (8 miles west) and Faringdon (15 miles west). Didcot is one of the larger places we cover in Oxfordshire.
What’s near Didcot
Around Didcot, our work takes us to homes and buildings near Didcot Girls' School, The Queens Arms and UTC Oxfordshire. Didcot has its own railway station: Didcot Parkway station. Other landmarks nearby include Abingdon Community Hospital (4.8 miles north-west) and Brightwell Castle (3.4 miles east). For a walk, there’s Mowbray Fields and Wittenham Clumps.
Quotes for fire rated sealant in Didcot
There’s no set price list. The quote depends on:
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- The size of the job
- Whether old sealant or filler has to be cut out
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
When you contact us, it’s useful to know:
- Roughly how big the job is
- Where the job is, and your postcode
- Any previous sealing or DIY work
- How we’d reach the joints
For fire rated sealant in Didcot, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
FAQs for Didcot
What guarantee comes with fire rated sealant in Didcot?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
I let a flat near Didcot Parkway station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours for a handful of gaps, and longer for a whole building. We’ll tell you when we quote.
Can you tell me how many minutes the seal will last?
We do not issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves, and we install to them.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Didcot, along with the rest of our area.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.