Hampshire · England
External & façade joints in Wickham, Hampshire
External mastic across Wickham and nearby, with old sealant always removed completely and a 12-month guarantee.
- Hard, crazed mastic that has stopped moving
- Sealant that has lost its bond to the brick or render
- Gaps where render, brick and frames meet
Landlord and commercial work in Wickham
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
External mastic in Wickham
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. If you have gaps where render, brick and frames meet and sealant that has lost its bond to the brick or render, we can put it right, on façade panels, render & cladding joints and brickwork movement joints alike.
Around Wickham, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
Every job is covered by our one-year guarantee, wherever you are in Hampshire.
- Place
- Wickham (PO17)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. The work normally takes a few hours for a handful of joints, longer for a whole elevation. A visit to Wickham is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
Getting a quote
Want a quote for external mastic? 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.
Related advice
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Walls that need new movement joints cut into them
- Failed render or damaged cladding panels
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Where we work in Wickham
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
Outside joints around Wickham
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Church of St Nicholas, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Wickham Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Wickham is about 3 miles north of Fareham, in Hampshire. Jobs in Wickham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, and Wickham is one of them. You can also see our page for Portsmouth, about 8 miles away.
Postcode districts we cover here for external mastic: PO17. Streets in the area include The Square, Station Road and Bridge Street, all of which we cover. Main roads around Wickham include the A32 and A334. We also cover the places around Wickham: Shedfield (1 mile north-west), Shirrell Heath (2 miles north), Kingsmead (2 miles north-east), Woodend (2 miles north-east) and Mislingford (2 miles north). Larger places within reach include Winchester (12 miles north-west), Gosport (7 miles south), Havant (9 miles east), Eastleigh (8 miles north-west), Fareham (3 miles south) and Horndean (8 miles east).
Local landmarks in Wickham
We work in homes and buildings around The Old House Hotel. Wickham’s nearest station is Fareham station, about 3.2 miles south of the centre. Nearby you’ll also find Fareham Shopping Centre (3.2 miles south) and Carron Row Farm Museum (3.5 miles south-west). Green spaces nearby include St Clair's Meadow and Portsdown Hill.
Places near Wickham
More services for Wickham
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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 fails, we can still redo it.
What affects the cost of external mastic
Every job gets its own quote. These are the things that affect it:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- The type of sealant required
- Any mould that needs treating
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.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- A few photos by email, if you can
- Roughly how big the job is
- What’s wrong with the joints now
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
Signs you need external mastic in Wickham
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and rips as the joint opens.
These are the problems we are asked about most:
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
- Brick movement joints where the sealant has split
For landlords with property near Fareham station, split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- What the cure time is
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- What guarantee comes with the work
Questions from Wickham
Is Wickham within the area you cover?
Yes, Wickham is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Fareham station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Where is Mr Mastic based?
We work from Crawley. We cover Wickham and the rest of Hampshire.
Do you use backing rod?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How do you reach high-level joints?
Each building is different. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.
Why act early in Wickham
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Around Wickham, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why Wickham customers choose us
- White, clear, grey or coloured to suit, where the product allows
- One-year guarantee on every job
- Full insurance on every job
- Quality sealants from Arbo and Everbuild
Read what affects the cost or customer reviews.