Isle of Wight · England
Fire-rated sealant in Newtown, Isle of Wight
Fire rated sealant for Newtown, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Ordinary sealant used where a fire-rated product was needed
- Door frames with gaps between frame and wall
- Holes left by a change of layout
Fire rated sealant for homes and businesses in Newtown
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. Common call-outs are for cracked or shrunken fire-rated sealant and gaps where walls meet ceilings or slabs, on flats & HMOs, linear gaps and door frames.
Work in a small place like Newtown is planned ahead, journey included, so it can be fitted around guests, customers or events where possible.
There’s a 12-month guarantee on every job.
- Location
- Newtown (PO30)
- Wider area
- Isle of Wight
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance.
Linear gaps
Head-of-wall gaps are often hidden above suspended ceilings. We work along the whole run.
Leave it or put it right?
Paying for fire stopping that has to be redone is a false economy. If the details weren’t followed, the seal may need redoing when the building is next checked. In a small place like Newtown, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Newtown
- Quality sealants from Arbo and Everbuild
- 20+ years of sealant experience
- Old sealant always removed completely
- Homes, businesses and hotels
Take a look at what affects the cost or our reviews.
Newtown questions
Is there a guarantee on fire rated sealant in Newtown?
All our work, in Newtown and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Is Newtown in your area for fire rated sealant?
Yes. We work across London and the South East, and Newtown is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Can you work in occupied buildings?
Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. The order of work and access are planned with you.
Are you fully insured?
Yes. We’re fully insured for domestic and commercial work.
Do you certify the fire stopping?
We don’t give ratings or certificates for our work. The requirement comes from your assessor, designer or building control, and we apply a product tested for it with a record of each location.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Will we have a record of what was sealed?
Yes. We record the locations we have sealed and the products used.
Is standard sealant good enough for a fire gap?
No. Where a fire-rated seal is needed, it has to be a product tested for that use, installed to its details.
Do you need fire rated sealant in Newtown?
In some buildings the gap was filled with the wrong thing in the first place: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It may look fine, but it is not a fire-rated seal.
Look out for these signs:
- Fire stopping disturbed by later work
- New service routes left unsealed after building work
- Gaps around pipes and cables through fire-resisting walls
- Gaps flagged on a fire risk assessment
If you look after a church, hall or community building such as Holy Spirit Church, service openings in its walls need the right fire-rated sealant, as in any building.
Before you book anyone
- When the joint can take water or movement
- What insurance they hold
- Is VAT in the price?
- What product goes in the joint
What happens on the day
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours for a handful of gaps, and longer for a whole building, and we explain the cure time before we leave. Somewhere as small as Newtown, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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 faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Before we arrive
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
Get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or send us an email and describe the job.
Read more
Fire rated sealant around Newtown
If you run a hotel, guest house or holiday let in a coastal place like Newtown, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. 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.
Around Newtown, as everywhere, fire rated sealant is only as good as the preparation behind it.
Newtown is about 4 miles west of Newport, in the Isle of Wight. Jobs in Newtown get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our the Isle of Wight coverage runs to 125 places, and Newtown is one of them. Our Southampton page covers work nearby.
We work across the PO30 postcode area for fire rated sealant and the streets around it. Close by, we work in Locksgreen (1 mile east), Porchfield (1 mile north-east), Great Thorness (2 miles north-east), Forest Side (3 miles east) and Rew Street (4 miles north-east). Larger places within reach include Newport (4 miles east), Ryde (10 miles east), Cowes (5 miles north-east), Sandown (11 miles east), Shanklin (11 miles south-east) and Ventnor (11 miles south-east). Remote and island addresses need a little more planning, so please mention your location when you call 0345 464 0079 or send us an email.
Near you in Newtown
Nearby you’ll also find St Mary's Hospital (4 miles east) and Carisbrooke Castle (3.7 miles south-east). Green spaces nearby include Brighstone Down.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Landlord and commercial work in Newtown
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for property managers and facilities teams. Several sites can be quoted together.
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- Doors that aren’t fire doors in the first place
- Issuing a fire rating or certificate for a building
- Openings too large for sealant, which need batts, boards or another system
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Plasterboard & masonry
- Linear gaps
- Door frames
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs