Hampshire · England
External Mastic in Hardley
We cover Hardley for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Movement joints with cracked, split or missing sealant
- Moss and dirt in joints with no sealant left
- Joints pointed up with cement by mistake
External mastic in Hardley
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. We work on concrete & block, brickwork movement joints and render & cladding joints, and the jobs we see most are water getting into walls through failed joints and plants rooting in failed movement joints.
Older homes in small places like Hardley may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Hardley (SO45)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What external mastic looks like in Hardley
Hardley is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around St Anne, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as The New Forest Academy, its movement joints, gutters and trims need looking after like any other building’s.
Hardley is about 2 miles south of Hythe, in Hampshire. Whether you are in the middle of Hardley or further out, we cover external mastic for every kind of property. 683 places in Hampshire are on our list, from the larger towns to small villages.
Every address in SO45 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on Harrier Way, Harrier Green and Falconer Court or a nearby road, we can help. Other places close to Hardley include Little Holbury (1 mile south), Holbury (1 mile south), Frostlane (1 mile north), Roughdown (1 mile south) and Blackfield (2 miles south-east). Larger places within reach include Gosport (11 miles east), Eastleigh (9 miles north), Fareham (9 miles east), Totton (7 miles north-west), Chandler's Ford (10 miles north) and Hedge End (7 miles north-east).
Near you in Hardley
Around Hardley, our work takes us to homes and buildings near Manor Church of England Infant School and the streets around them. For rail, the closest station is Netley station, about 3.3 miles north-east of the centre. Other landmarks nearby include Royal South Hants Hospital (5.1 miles north) and Beaulieu Abbey And Display Of Monastic Life (2.9 miles west). Not far away are Mercury Marshes.
What affects the quote in Hardley
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
What we need to know
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- The type of property
Asking for a quote is easy: tell us what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What we cannot put right
New sealant cannot fix everything, and we will tell you before we start. Sealant will not put right:
- Walls that need new movement joints cut into them
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
What we seal
- Façade panels
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
The process
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on the building. Somewhere like Hardley needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Mention if the joints have been sealed before
- Clear the area around the work
Getting a quote
To get a quote, call 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 work begins.
Read more
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Hardley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Hardley customers choose us
- Domestic, commercial and hotel work
- Sealant colour chosen to suit
- We’re fully insured
- Neat joints and a tidy finish
See our cost guide and customer reviews.
How the job changes by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Common problems we fix in Hardley
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
People usually contact us after spotting something like this:
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
For landlords with property near Netley station, split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- Whether the sealant suits the joint
- How long the guarantee is
- What happens if they find a problem under the old sealant
- Whether VAT is included
Hardley questions
Do you cover smaller places like Hardley?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Netley station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
How do I get a quote for external mastic in Hardley?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email with a short description of the job.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or send us an email.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
Are you insured?
Yes. We are fully insured for every job we do.