Hampshire · England
External & façade joints in Bull Hill, Hampshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Bull Hill and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
- Leaking joints around cladding and façade panels
Surface by surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and helps it last.
External mastic in Bull Hill, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the line blends in. If you are dealing with leaking joints around cladding and façade panels and sealant that has lost its bond to the brick or render, we can help, on joints between brick and frames, concrete & block and render & cladding joints alike.
External sealant needs dry, clean surfaces, so work around Bull Hill is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Big or small, it’s backed by our 12-month guarantee in Bull Hill and across Hampshire.
- Location
- Bull Hill (SO41)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a small place like Bull Hill, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Tell us about any water getting in
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Advice
Also near Bull Hill
Other services in Bull Hill
What affects the quote in Bull Hill
We quote each job individually. These are the things that affect it:
- Whether there’s mould to deal with
- The product the joint needs
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Helping us quote
When you call or email, it’s useful to know:
- Any previous sealing or DIY work
- What’s wrong with the joints now
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
Common problems we fix in Bull Hill
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
Signs it’s time to call us include:
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
- Weeds or debris growing in open joints
- Joints with sealant missing in places
For site and facilities teams at buildings such as William Gilpin Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- How the colour is chosen
- When the joint can take water or movement
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Questions from Bull Hill
Does living near the coast affect external mastic in Bull Hill?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
I let a flat near Lymington Town station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Are you insured?
Yes. We’re fully insured.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
How much does external mastic cost in Bull Hill?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Why act early in Bull Hill
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Where a wall is exposed, as many are in small places like Bull Hill, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
Read our cost guide and our reviews.
External mastic in Bull Hill: local notes
Bull Hill 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. London and the South East are among 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 Lymington Town station, outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around Saint Nicholas Chapel, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Bull Hill is about 2 miles north-east of Lymington, in Hampshire. We carry out external mastic for householders, landlords and businesses in Bull Hill and the surrounding area. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. Southampton is on our list too, about 11 miles from Bull Hill.
Here we cover the SO41 postcode area for external mastic. We cover properties on Holly Lane and Jordans Lane and the roads around them. Neighbouring places we cover for external mastic include Pilley Bailey (1 mile north-west), Pilley (1 mile west), Portmore (1 mile south), Warborne (1 mile south-west) and Boldre (1 mile west). Larger places within reach include Eastleigh (15 miles north-east), Fareham (15 miles east), Totton (9 miles north), Chandler's Ford (15 miles north-east), Hedge End (13 miles north-east) and Romsey (15 miles north).
What’s near Bull Hill
Locally, jobs take us to homes and businesses close to Southlands School. For rail, the closest station is Lymington Town station, about 1.8 miles south-west of the centre. A little further out are Lymington New Forest Hospital (1.5 miles south-west) and St Barbe Museum and Art Gallery (2 miles south-west). For a walk, there’s Boldre Foreshore.
Honest limits
To be straight with you, some problems need a different trade:
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Surfaces we seal
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels