Portsmouth · England
External & façade joints in Milton, Portsmouth
Problem with your movement joints in Milton? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Movement joints filled with mortar instead of sealant
- Sealant that has lost its bond to the brick or render
- Moss and dirt in joints with no sealant left
Landlord and commercial work in Milton
Housing providers, facilities teams and property managers book us too in Milton and across Portsmouth. Several sites can go on one quote, and we are fully insured for the work.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
How we handle external mastic in Milton
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. Typical jobs include movement joints filled with mortar instead of sealant and cracked joints where brick meets render or frames, across concrete & block, copings & trims and render & cladding joints.
Homes around Milton range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Where
- Milton (PO4, PO3, PO1)
- Region
- Portsmouth
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What else we do in Milton
Aftercare tips
Aftercare is simple:
- Keep high-pressure jets off the joints
- Check external joints each spring
- Never let anyone fill a movement joint with mortar
- Act on the first splits you see
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
What sealant work can’t fix
In fairness, there are a few things sealant won’t fix:
- Adding movement joints to masonry that has none
- Render that is blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Copings & trims
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
Common problems we fix in Milton
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
It’s worth asking for a quote if you see:
- Cracked joints where brick meets render or frames
- Panel joints letting water in
- Sealant pulling away from one side of the joint
- Moss and dirt in joints with no sealant left
Letting a property close to Fratton station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- What insurance they hold
- When the joint can take water or movement
What affects the cost of external mastic
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- Any mould that needs treating
- The amount of work
- The number of rooms or windows
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins.
Asking for a quote
When you contact us, these details help:
- Where the property is
- Photos by email, if that is easy
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Different surfaces, different methods
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
External mastic in Milton: local notes
Milton is within about 1 mile of 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. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Meon Junior School, its movement joints, gutters and trims need looking after like any other building’s. Homes close to Church of St James include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Milton is about 1 mile south-east of Portsmouth, in Portsmouth. Homes, rented property, offices and hotels in Milton is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Across Portsmouth, we cover 19 places, Milton among them.
Postcode districts we cover here for external mastic: PO4, PO3 and PO1. Whether your property is on Liss Road, Meon Road and Aston Road or a nearby road, we can help. We also cover the places around Milton: Kingston (1 mile north-west), Fratton (1 mile north-west), Southsea (1 mile south-west), Baffins (1 mile north) and Copnor (1 mile north). Larger places within reach include Wymering (4 miles north), Paulsgrove (4 miles north), Cosham (3 miles north), Drayton (4 miles north) and Farlington (4 miles north).
Around Milton
Typical jobs here are in homes near The Milton Arms, Mary Rose School and St Edmund's Catholic School. The nearest railway station is Fratton station, about 0.6 miles west of the centre. Other landmarks nearby include Eastney Beam Engine House (0.7 miles south-east) and St. Mary's Hospital (under half a mile north-west). For a walk, there’s Portsdown Hill and Milton Locks.
FAQs for Milton
Will you come out to Milton?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is external mastic in a coastal place like Milton any different?
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.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.
Do you work for letting agents?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
Where do you work from?
We work from Crawley. Our applicators cover Milton.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
How it works
On the day, we look over the joints with you first. We protect the surfaces around the joints before we start. Most jobs take anything from a few hours to several days, depending on the building. A visit to Milton is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
Get a quote
For a quote, ring 0345 464 0079 or drop 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.