Hampshire · England
Fire Rated Sealant in Denmead
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Denmead and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cracked or shrunken fire-rated sealant
- Fire stopping disturbed by later work
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant in Denmead
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. Anything unsuitable comes out first and the gap is resealed with a product tested for that use. If you have ordinary sealant used where a fire-rated product was needed and linear gaps at the head of walls, we can put it right.
If you run a pub, café, guest house or shop in or near Denmead, its washrooms and kitchen need the same sealant care as any big building.
Every job comes with our one-year guarantee, wherever you are in Hampshire.

- Where
- Denmead (PO7)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Workplaces and buildings in Denmead
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 work to the specification you’re given, installing the product to its tested details.
Rented homes near Cosham station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For site and facilities teams at buildings such as Denmead Junior School, service openings in fire-resisting walls need checking after any refurbishment.
Denmead is about 2 miles north-west of Waterlooville, in Hampshire. If you need fire rated sealant in Denmead, please call 0345 464 0079 or send us an email for a quick quote. We cover Hampshire from our Crawley base, Denmead included. Our area takes in 683 places across Hampshire, large and small. There’s also a page for Portsmouth, about 6 miles away.
Postcode districts we cover here for fire rated sealant: PO7. We cover properties on Ashling Park Road, Chestnut Close and The Orchard and the roads around them. You’ll find Denmead on the B2150, which makes it straightforward to reach with everything needed for fire rated sealant. Other places close to Denmead include Anmore (1 mile east), Anthill Common (1 mile north-west), Wecock Farm (2 miles east), Lovedean (2 miles east) and Hambledon (2 miles north-west). We also work in nearby towns such as Winchester (15 miles north-west), Gosport (8 miles south-west), Havant (4 miles south-east), Eastleigh (13 miles west), Fareham (7 miles south-west) and Chandler's Ford (15 miles north-west).
Near you in Denmead
Around Denmead, our work takes us to homes and buildings near The Cowplain School and The Harvest Home pub, among other places. The nearest railway station is Cosham station, roughly 4.1 miles south of the centre. Nearby you will also find Queen Alexandra Hospital (3.5 miles south) and Portchester Castle (4.9 miles south-west). Green spaces nearby include Portsdown Hill and St Clair's Meadow.
Questions from Denmead
Do you work for landlords with property near Cosham station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Denmead?
Yes. Denmead is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you carry out fire risk assessments?
No. We follow the requirements from your assessor, designer or building control, and apply each product to its tested details.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Is intumescent sealant the same as fire-rated sealant?
An intumescent material expands when it’s heated. Intumescent sealants are a type of fire-rated sealant.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Denmead and the rest of Hampshire.
What affects the cost of fire rated sealant
Your quote is based on your job. We look at:
- How many areas need sealing
- Any mould that needs treating
- The old material and how stubborn it is
- The type of sealant required
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Asking for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- The address or postcode of the job
- A few photos by email, if you can
- Any access issues, like height or stairs
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
The process
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on how many gaps there are, and we tell you how long to leave it before we go. A visit to Denmead is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- We put in whatever backing or fill the product detail specifies.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or drop us an email.
Advice
Why it’s worth doing now in Denmead
Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job and needn’t wait for anything else. In an older home around Denmead, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why Denmead customers choose us
- Arbo and Everbuild products
- We never seal over old sealant
- Tidy, careful work
- More than 20 years in sealant work
Take a look at how sealant jobs are priced or our reviews.
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- A wall that is not a fire-resisting element to begin with
- Doors that aren’t fire doors in the first place
- Certifying a building or signing off its fire safety
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Service penetrations
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
- Linear gaps
- Flats & HMOs
Places near Denmead
What else we do in Denmead
Landlords, agents and businesses in Denmead
If you manage several properties in or around Denmead, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Landlords and letting agents in Denmead can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What the job involves on each surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes aren’t treated the same. Each one is sealed to the product’s tested detail, and tell you if sealant alone isn’t the right fix.
When to call us in Denmead
In some buildings the gap was filled with the wrong thing in the first place: general-purpose foam, everyday silicone or caulk in a place that needed a tested fire seal. It may look fine, but it isn’t a fire-rated seal.
Signs it’s time to call us include:
- Seals cut through by electricians, plumbers or data installers
- Open joints along the top of partitions
- Cracked or shrunken fire-rated sealant
- Sealant items on a fire risk assessment action list
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.
Before you book anyone
- How the joint is cleaned and prepared
- Is VAT in the price?
- Whether all the old sealant comes out first
- The length of the guarantee
