Southampton · England
External Mastic in Hillyfields
Sealing brickwork movement joints, render, cladding and façade joints for Hillyfields, backed by a 12-month guarantee. Call for a quick quote.
- Movement joints with cracked, split or missing sealant
- Damp patches traced to an open external joint
- Joints pointed up with cement by mistake
Common problems we fix in Hillyfields
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
Keep an eye out for any of the following:
- Joints where the bead has come unstuck
- Damp patches traced to an open external joint
- Weathered mastic that no longer stretches
- Gaps where render, brick and frames meet
Schools such as Holy Family Catholic Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- How much experience the applicator has
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- How the colour is chosen
External mastic in Hillyfields, done properly
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 rarely last long. We take the old material out and do it properly. We’re often asked to deal with weeds or debris growing in open joints and damp patches traced to an open external joint, on concrete & block, render & cladding joints and joints between brick and frames.
Houses in smaller places like Hillyfields can stand more in the open than those in a built-up town, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are normally the first to go.
All of our work is guaranteed for twelve months.
- Where
- Hillyfields (SO16)
- Wider area
- Southampton
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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, then guaranteed for a year.
Hillyfields questions
I let a flat near Redbridge station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Does living near the coast affect external mastic in Hillyfields?
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.
How often do external joints need resealing?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a one-year guarantee.
What does external mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is generally a movement joint. It gives the wall room to move, and it should be sealed with a flexible sealant.
Do you work in Hillyfields?
Yes, we do. Our applicators work in Hillyfields.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
What else we do in Hillyfields
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Movement that’s more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
- Walls that need new movement joints cut into them
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
Where we work in Hillyfields
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
Outside joints around Hillyfields
Hillyfields is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. With historic houses such as Southampton Tudor House and Garden (about 3.7 miles south-east) nearby, there’s older building stock in the area around Hillyfields as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
In the older streets around All Saints, an extension built onto an older house moves differently, and the joint between them takes the strain. Rented homes near Redbridge station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Hillyfields is about 2 miles north-west of Regents Park, in Southampton. For external mastic in and around Hillyfields, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We are based in Crawley and cover Southampton, Hillyfields included. Hillyfields is one of 40 towns and villages in Southampton we cover.
Here we cover the SO16 postcode area for external mastic. Whether your property is on Maplin Road, Colne Avenue and Hayburn Road or a nearby road, our applicators can take on the job. You will find Hillyfields on the M271, so it’s easy for us to get to with everything needed for external mastic. We also cover Nursling (1 mile north), Maybush (1 mile south-east), Upton (1 mile north), Rownhams (1 mile north-east) and Coxford (1 mile east). We also work in nearby towns such as Southampton (3 miles east), Townhill Park (5 miles east), Midanbury (5 miles east), Thornhill (6 miles east), Chartwell Green (5 miles east) and Harefield (6 miles east).
Around Hillyfields
In Hillyfields, that means homes and buildings near Oasis Academy Lord's Hill, St James' Park and Millbrook Community School, among other places. The nearest railway station is Redbridge station, roughly 1.1 miles south of the centre. Other landmarks nearby include Marlands Shopping Centre (3.4 miles south-east) and Eling Experience (1.4 miles south-west). Open spaces near Hillyfields include Testwood Lakes.
What we do, step by step
We keep the work tidy and contained to the area we are working on. The job generally takes a few hours for a handful of joints, longer for a whole elevation. For a job in Hillyfields, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Clear the area around the work
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- Access and height
- How much there is to do
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- How we’d reach the joints
- Pictures of the joints, sent by email
- If someone has resealed it before
- 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. You’ll have a clear quote before work begins.
Different surfaces, different methods
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Around Hillyfields, 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.
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Why choose Mr Mastic in Hillyfields
- Colour picked to suit the job
- Tidy, careful work
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
Read what affects the cost or our reviews.