Hampshire · England
Boarhunt External Mastic
External mastic for Boarhunt and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
How it works
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. Expect the work to take a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. For a village or hamlet like Boarhunt, 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 start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Clear items away from the joints we are working on
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
Getting a quote
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
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External mastic for homes and businesses in Boarhunt
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on façade panels, concrete & block and joints between brick and frames, and the jobs we see most are weeds or debris growing in open joints and rigid filler in a joint that should flex.
Somewhere as small as Boarhunt, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Location
- Boarhunt (PO17)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Towns and villages near Boarhunt
More services for Boarhunt
Questions from Boarhunt
Does living near the coast affect external mastic in Boarhunt?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Will you come out to Boarhunt?
Yes. Boarhunt 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.
Do the sealants smell?
There can be a smell while the sealant cures. Ventilation helps.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
What colours does the sealant come in?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render.
Why it’s worth doing now in Boarhunt
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. In a small place like Boarhunt, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What you get with us
- 20+ years of sealant experience
- Tidy, careful work
- Rated 4.9 stars on Google
- White, clear, grey or another colour, product permitting
See what affects the cost and our reviews.
Do you need external mastic in Boarhunt?
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
The most common problems we see are:
- Joints pointed up with cement by mistake
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
- Gaps where render, brick and frames meet
If you look after a building such as Cams Hill School, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- How hidden problems are handled
- What product goes in the joint
- What the cure time is
- Is VAT in the price?
Quotes for external mastic in Boarhunt
For a quick quote, just ask. What matters most is:
- Access and height
- The type of sealant required
- Any mould that needs treating
- How much there is to do
What you pay reflects the work, not guesswork. That is why we ask about the job first and give you a clear quote before work begins.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Any access issues, like height or stairs
- Where the property is
- Whether it’s a home or a business
- Roughly how big the job is
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
For landlords and businesses
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured.
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.
Boarhunt buildings and the weather
Boarhunt is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Portchester station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of St Nicholas include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Boarhunt is about 3 miles north-east of Fareham, in Hampshire. Whether you’re in the middle of Boarhunt or further out, external mastic is available for homes and businesses alike. Across Hampshire, we cover 683 places, and Boarhunt is one of them.
Every address in PO17 is covered for external mastic. Other places close to Boarhunt include Southwick (1 mile east), North Fareham (1 mile west), Wallington (2 miles south-west), North Boarhunt (2 miles north) and Fareham Common (2 miles south-west). Further out, we also cover Winchester (15 miles north-west), Gosport (5 miles south), Havant (7 miles east), Eastleigh (11 miles north-west), Fareham (3 miles south-west) and Horndean (6 miles north-east).
Landmarks near Boarhunt
Boarhunt’s nearest station is Portchester station, about 1.6 miles south-east. A little further out are Fareham Shopping Centre (2 miles south-west) and Portchester Castle (2.5 miles south-east). Not far away are Portsdown Hill and St Clair's Meadow.
What we cannot put right
It helps to know what we can’t do too:
- Cracked brickwork or render that needs a builder or plasterer
- Movement that’s more than a sealant joint can take
- Render that’s blown, hollow or coming away
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Concrete & block
- Copings & trims
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames