Hampshire · England
Fire Rated Sealant in Keyhaven
Fire rated sealant for Keyhaven and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Ordinary sealant used where a fire-rated product was needed
- Damaged fire sealant left by other trades
- Unsealed gaps around fire door frames
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Check risers, ceiling voids and cupboards during building checks
- Make resealing part of every contractor’s brief
- Check whether a sealant can be painted before decorating over it
- Do not fill fire-stopping gaps with ordinary foam or silicone
Any fire seal that is cut or drilled needs resealing to its tested detail. If you need new services through a sealed wall, plan the fire stopping as part of the job.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Have it sealed, then keep the record.
Fire rated sealant for homes and businesses in Keyhaven
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, gap by gap. If you have holes left by a change of layout and gaps where walls meet ceilings or slabs, we can put it right, whatever the surface.
If you have holiday lets, a converted barn used for business or a community building near Keyhaven, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
A 12-month guarantee comes as standard.
- Location
- Keyhaven (SO41)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Door frames
Our work is the joint between frame and wall. The door leaf, its seals and closer need a door specialist and we’ll mention anything we notice.
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Crumbling edges are cleaned back before the sealant goes in.
Workplaces and buildings in Keyhaven
If you run a hotel, guest house or holiday let in a coastal place like Keyhaven, 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. 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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Managing a site like Milford-on-Sea Church of England Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices. Community buildings like Church of All Saints are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Lymington Town station, any gap left by new services in shared walls should be closed with a fire-rated product.
Keyhaven is about 3 miles south of Lymington, in Hampshire. Keyhaven gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, and Keyhaven is one of them. Our Southampton page covers work nearby, about 16 miles away.
Every address in SO41 is covered for fire rated sealant. If you need fire rated sealant at a property on New Road, Keyhaven Road and Saltgrass Lane or a nearby road, we can help. We also cover the places around Keyhaven: Milford on Sea (1 mile west), Lymore (1 mile north-west), Lower Pennington (1 mile north-east), Everton (2 miles north-west) and Pennington (2 miles north). Within a short drive, we also cover Totton (14 miles north), Hythe (12 miles north-east), New Milton (4 miles north-west), Ringwood (13 miles north-west), Warsash (15 miles north-east) and Barton on Sea (4 miles west).
Landmarks near Keyhaven
Locally, jobs take us to homes and businesses close to The Gun Public House and Priestlands School, among other places. Keyhaven’s nearest station is Lymington Town station, roughly 3 miles north-east. Other landmarks nearby include St Barbe Museum and Art Gallery (2.8 miles north-east) and Yarmouth Castle (3.3 miles east). The countryside around Keyhaven includes Milford on Sea LNR and Tennyson Down.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What affects the cost of fire rated sealant
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- Which sealant suits the joint
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
To help us quote quickly, let us know:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- Whether it’s a home or a business
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Common questions in Keyhaven
Do you cover smaller places like Keyhaven?
Yes, Keyhaven 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 Keyhaven?
Yes. Our work covers London and the South East, and Keyhaven is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
What fire rating will the seal have?
That isn’t something we state or certify. Your specification sets the requirement, and we apply a product tested for it.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you tell me which gaps need fire stopping?
No, we do not assess buildings. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Honest limits
We won’t take on work that will not last, so these are the limits:
- Large holes that need a different fire-stopping system
- Construction that does not provide fire resistance on its own
- Fire doors that need new seals, closers or hardware
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.
What we seal
- Door frames
- Service penetrations
- Pipe & cable gaps
- Linear gaps
- Flats & HMOs
- Plasterboard & masonry
How it works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes anything from a few hours to several days, depending on how many gaps there are, depending on the size of the job. For a village or hamlet like Keyhaven, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- We put in whatever backing or fill the product detail specifies.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- We record the locations and products used for your records.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- Clear items away from the joints we are working on
Ask for a quote
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or send us an email.
Read more
Leave it or put it right?
Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own. Where a wall is exposed, as many are in small places like Keyhaven, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Keyhaven
- Full insurance on every job
- We never seal over old sealant
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
See our cost guide or our reviews.