Southampton · England
External & façade joints in Upton, Southampton
Specialist external mastic for Upton: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Hard, crazed mastic that has stopped moving
- Panel joints letting water in
- Brick movement joints where the sealant has split
External mastic in Upton
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you have plants rooting in failed movement joints and rigid filler in a joint that should flex, we can help.
Somewhere as small as Upton, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Where
- Upton (SO16)
- Region
- Southampton
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Upton
Is external mastic in a coastal place like Upton any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near Redbridge station?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Can you reach joints on upper floors?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
What does external mastic cost?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
What happens if it’s left?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost around the joint, so the problem grows beyond the joint itself. Where a wall is exposed, as many are in small places like Upton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.
What you get with us
- You choose the colour before work begins
- Anti-fungal sanitary silicone in wet areas
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
Take a look at how sealant jobs are priced and what customers say.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Tell anyone working on the walls about the movement joints
- Fix overflowing gutters above sealed joints
- Make sure movement joints aren’t pointed over
- Don’t let climbing plants root in the sealant
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
The process
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Upton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Advice
Honest limits
It helps to know what we cannot do:
- Subsidence or other structural problems
- Walls that need new movement joints cut into them
- Cracking across the wall rather than at a joint
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Façade panels
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
Quotes for external mastic in Upton
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and send you a clear quote before any work starts.
What we need to know
Photos by email are helpful but not essential. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- Any previous sealing or DIY work
- Whether it’s a home or a business
Need a quote? Please call 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Outside joints around Upton
Upton is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. With historic houses such as South Stoneham House (about 4.1 miles east) nearby, there’s older building stock in the area around Upton as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Redbridge station? Then split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Church of St John, the joints between older walls, newer extensions and the roofline need a sealant that can move. For site and facilities teams at buildings such as Nursling Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Upton is about 2 miles north-west of Regents Park, in Southampton. Jobs in Upton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across Southampton, we cover 40 places, Upton among them.
All of SO16 is covered for external mastic. Streets in the area include Upton Lane, Romsey Road and Greenwood Avenue, all of which we cover. Neighbouring places we cover for external mastic include Nursling (1 mile south), Rownhams (1 mile east), Ashfield (1 mile north-west), Toothill (1 mile north) and Hillyfields (1 mile south). Further out, we also cover Southampton (4 miles south-east), Shirley (3 miles south-east), Townhill Park (5 miles east), Midanbury (5 miles east), Thornhill (6 miles south-east) and Chartwell Green (5 miles east).
What’s near Upton
Around Upton, our work takes us to homes and buildings near Oaklands Community School and Oasis Academy Lord's Hill and the streets around them. For rail, the closest station is Redbridge station, about 2.1 miles south. Well-known places in the area include Princess Anne Hospital (1.8 miles south-east) and Eling Experience (2.2 miles south). Green spaces nearby include Testwood Lakes.
Different surfaces, different methods
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Nearby places to Upton
Other services in Upton
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.