Hampshire · England
Priddy's Hard External Mastic
Professional external mastic in and around Priddy's Hard, with old sealant always removed completely.
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
External mastic in Priddy's Hard
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement. We are often asked to deal with weeds or debris growing in open joints and joints where the bead has come unstuck, on concrete & block, façade panels and brickwork movement joints.
Older homes in small places like Priddy's Hard 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.
Each job carries a 12-month guarantee.
- Where
- Priddy's Hard (PO12)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Priddy's Hard
Do you work for landlords with property near Portsmouth Harbour station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Will you come out to Priddy's Hard?
Yes, Priddy's Hard is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working. We’ll reseal it with a flexible sealant.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
When to call us in Priddy's Hard
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Signs it’s time to call us include:
- Weeds or debris growing in open joints
- Brick movement joints where the sealant has split
- Cracked joints where brick meets render or frames
- Joints where the bead has come unstuck
If you look after a building such as St Vincent College, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before booking
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
What affects the quote in Priddy's Hard
Jobs vary more than people expect. What affects the quote:
- The type of sealant required
- Whether the work is at height
- How many areas need sealing
- When we can work, for business premises
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- How we’d reach the joints
- The problem you’ve noticed
- If someone has resealed it before
- Pictures of the joints, sent by email
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details and send photos if you have them.
How to look after the new joints
Looking after new joints is easy:
- Check the sealant is paintable before painting near it
- Walk round the building once a year and look at the joints
- Have failed joints looked at early
- Fix overflowing gutters above sealed joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
What happens if it’s left?
Low-modulus sealants stretch easily, so they put less strain on the joint 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. Older cottages and farmhouses around Priddy's Hard can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
What you get with us
- 20+ years of sealant experience
- Sanitary silicone with an anti-fungal additive in wet areas
- ARBOMaster approved applicator
- 12-month guarantee on every job
Take a look at our cost guide and customer reviews.
When it is not the sealant
To be straight with you, some problems need a different trade:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
Also near Priddy's Hard
What else we do in Priddy's Hard
Walls and rooflines in Priddy's Hard
Priddy's Hard is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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.
For landlords with property near Portsmouth Harbour station, outside joints that have cracked can let damp into a rental, so check them between lets. Homes close to Church of St Mary include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Priddy's Hard is about 1 mile east of Gosport, in Hampshire. Homes, rented property, offices and hotels in Priddy's Hard can book us for external mastic. The work is guaranteed for a year. 683 places in Hampshire are on our list, from the larger towns to small villages.
All of PO12 is within our area for external mastic. If you need external mastic at a property on Weevil Lane, Orion Avenue and Salt Meat Lane or anywhere close by, we can help. We also cover the places around Priddy's Hard: Forton (1 mile south-west), Elson (1 mile north-west), Gosport (1 mile west), Bridgemary (2 miles north-west) and Rowner (2 miles north-west). Further out, we also cover Havant (7 miles north-east), Eastleigh (15 miles north-west), Fareham (4 miles north-west), Horndean (9 miles north-east), Hedge End (11 miles north-west) and Waterlooville (7 miles north-east).
Landmarks near Priddy's Hard
We work in homes and buildings around Brune Park Community School, The Windsor Castle pub and Elson Junior School, among other places. The closest station to Priddy's Hard is Portsmouth Harbour station, roughly 1 mile south-east of the centre. Nearby you’ll also find Tricorn Centre (1.6 miles east) and Search (0.8 miles south). Green spaces nearby include West of the River Alver and Portsdown Hill.
The process
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Priddy's Hard, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- 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
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
Landlords, agents and businesses in Priddy's Hard
If you manage several properties in or around Priddy's Hard, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.