Southampton · England
External Mastic in Bitterne Park
Specialist external mastic for Bitterne Park: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Sealant that has lost its bond to the brick or render
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
What affects the cost of external mastic
Every job gets its own quote. This is what makes a difference:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- The size of the job
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Helping us quote
To make quoting easier, please include:
- Roughly how big the job is
- A few pictures by email, if you can
- Any previous sealing or DIY work
- What’s wrong with the joints now
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
External mastic in Bitterne Park, done properly
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where mortar or filler would crack. Common call-outs are for movement joints with cracked, split or missing sealant and rigid filler in a joint that should flex, on façade panels, render & cladding joints and concrete & block.
In and around Bitterne Park, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Your job is guaranteed for a year, as with all our work.
- Where
- Bitterne Park (SO18, SO17, SO19)
- Wider area
- Southampton
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Movement that is more than a sealant joint can take
- Damp that is not coming from the joint
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
Landlords, agents and businesses in Bitterne Park
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Leave the joints unpainted unless we have said otherwise
- Make sure movement joints aren’t pointed over
- Get split or bare joints resealed while the damage is small
- Tell anyone working on the walls about the movement joints
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access. A visit to Bitterne Park 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.
- 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.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
Ask for a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Related advice
Surface by surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant where it can be done safely.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and helps it last.
Bitterne Park buildings and the weather
Bitterne Park is within about 3 miles of 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 South Stoneham House (about 0.9 miles north) nearby, there’s older building stock in the area around Bitterne Park as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around Church of Ascension, the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Bitterne station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. Schools such as St Mary's Independent School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Bitterne Park is about 1 mile east of Southampton, in Southampton. We carry out external mastic for homes and businesses in Bitterne Park and nearby. Our Southampton coverage runs to 40 places, and Bitterne Park is one of them.
Every address in SO18, SO17 and SO19 is covered for external mastic. Local streets include Neva Road, Avon Road and Bond Road. Being close to the A3024, Bitterne Park is easy for our applicators to reach. Other places close to Bitterne Park include Midanbury (1 mile north-east), Bitterne Manor (1 mile south-west), St Denys (1 mile west), Townhill Park (1 mile north-east) and Bitterne (1 mile south-east). We also work in nearby towns such as Shirley (3 miles west), Regents Park (3 miles west), Maybush (3 miles west), Coxford (3 miles west), Freemantle (3 miles west) and Lordswood (3 miles north-west).
Landmarks near Bitterne Park
Typical jobs here are in homes near Bitterne Park Hotel, Bitterne Park Primary School and Riverside Park, among other places. The closest station to Bitterne Park is Bitterne station, roughly 0.5 miles south-west. A little further out are Bitterne Local History Society Heritage And Research Centre (0.8 miles south-east) and Royal South Hants Hospital (1.3 miles south-west). Green spaces nearby include Netley Common.
Places near Bitterne Park
Other services in Bitterne Park
FAQs for Bitterne Park
Do you cover smaller places like Bitterne Park?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Bitterne station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Do you work at height?
Each building is different. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you when we finish.
How do I get a quote for external mastic in Bitterne Park?
Size, access and the old material all affect the cost. Ask us for a quote.
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.