Hampshire · England
Fire Rated Sealant in New Copse
Our applicators work in New Copse on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Seals cut through by electricians, plumbers or data installers
- Gaps where walls meet ceilings or slabs
- Gaps filled with a product that is not fire-rated
Aftercare tips
So the new joints stay in good condition:
- Keep the record of products and locations with your fire safety documents
- Ask which product was used before you paint
- Take photos of fire stopping before ceilings or boxing go back
- Make resealing part of every contractor’s brief
Do not add foam, filler or ordinary sealant over a fire seal. Repairs should use a matching fire-rated product. Ask us if you’re not sure which product was used.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.
Fire rated sealant in New Copse
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. Measuring the gap and checking what it’s made of comes first, then the sealant goes in to the depth the product’s details set. If you are dealing with fire seals that have cracked with movement and holes left by a change of layout, we can put it right.
Work in a small place like New Copse is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.

- Where
- New Copse (GU34)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in New Copse
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Places near New Copse
What else we do in New Copse
Common questions in New Copse
Do you cover smaller places like New Copse?
Yes, New Copse is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do fire rated sealant in New Copse?
Yes. We work across London and the South East, and New Copse is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover New Copse, along with the rest of our area.
Will we have a record of what was sealed?
Yes. Every gap we seal is listed with the product used so it’s there for the next inspection.
Do you work in flats, HMOs and commercial buildings?
Yes, whether the building is a school, an office, flats or an HMO, and whether it’s in use or not. Let us know the building’s hours and we’ll plan the work to suit.
Commercial buildings in New Copse
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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 buildings such as Church of St Andrew, service openings in its walls need the right fire-rated sealant, as in any building. If you let a flat or house near Alton station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Managing a site like Medstead Church of England Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices.
New Copse is about 4 miles west of Alton, in Hampshire. For fire rated sealant in and around New Copse, please call 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Hampshire. Across Hampshire, we cover 683 places, and New Copse is one of them. Our Southampton page covers work nearby, about 21 miles away.
Postcode districts we cover here for fire rated sealant: GU34. Close by, we work in South Town (1 mile south), Holt End (1 mile north), Hattingley (1 mile south-west), Wivelrod (1 mile east) and Bentworth (1 mile north-east). We also work in nearby towns such as Basingstoke (9 miles north), Winchester (12 miles south-west), Fleet (14 miles north-east), Aldershot (15 miles north-east), Alton (4 miles east) and Petersfield (11 miles south-east).
Landmarks near New Copse
New Copse’s nearest station is Alton station, roughly 4.3 miles east. Other landmarks nearby include Alton Community Hospital (3.2 miles east) and Gliding Heritage Centre (3.7 miles north-east). For a walk, there’s King's Hill.
Different surfaces, different methods
Door frames
We deal with the gap around the frame, not the door. Doors, seals and closers are for a door specialist.
Linear gaps
Some linear gaps have to cope with movement as well as fire. The product and depth are chosen to suit both.
What affects the quote in New Copse
We quote each job individually. These are the things that affect it:
- How easy the joints are to reach
- The old material and how stubborn it is
- The product the joint needs
- The number and length of the joints
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Helping us quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- How we’d reach the joints
- The type of property
- The problem you’ve noticed
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
What we cannot put right
It helps to know what we cannot do:
- Big openings where sealant alone is not the tested solution
- Certifying a building or signing off its fire safety
- Deciding what fire stopping a building needs
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Service penetrations
- Linear gaps
- Door frames
- Plasterboard & masonry
- Pipe & cable gaps
- Flats & HMOs
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Somewhere like New Copse needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for 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.
Getting ready for the visit
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
