Hampshire · England
External Mastic in Harbridge
Sealing brickwork movement joints, render, cladding and façade joints in Harbridge, with a one-year guarantee on every job. Ask us for a quote.
- Weeds or debris growing in open joints
- Joints pointed up with cement by mistake
- Sealant that has lost its bond to the brick or render
Harbridge: your questions answered
Do you cover smaller places like Harbridge?
Yes, Harbridge is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is there a guarantee on external mastic in Harbridge?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
What colours does the sealant come in?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Do you work for landlords and businesses?
Yes. Domestic, commercial and hotel work are all part of what we do.
How we handle external mastic in Harbridge
Low-level joints can normally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. Common call-outs are for failed seals between different materials and leaking joints around cladding and façade panels, on brickwork movement joints, concrete & block and copings & trims.
External sealant needs dry, clean surfaces, so work around Harbridge is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Harbridge (BH24)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Harbridge
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
Look out for any of the following:
- Failed sealant between panels on a façade
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Failed seals between different materials
Around Harbridge, as everywhere, external mastic is only as good as the preparation behind it.
Comparing quotes
- What product goes in the joint
- Are they insured?
- How the colour is chosen
- Whether VAT is included
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Failed render or damaged cladding panels
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Façade panels
- Copings & trims
- Brickwork movement joints
What the job involves on each surface
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.
What affects the quote in Harbridge
The quote reflects the job in front of us. We take into account:
- The number of rooms or windows
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
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, so you know where you stand.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Photos by email, if that’s easy
- Whether it’s a home or a business
Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will take it from there.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Where a wall is exposed, as many are in small places like Harbridge, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why us?
- Arbo and Everbuild products
- Rated 4.9 stars on Google
- 12-month guarantee on every job
- An ARBOMaster approved applicator
See our cost guide or what customers say.
Harbridge buildings and 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.
If you live in an older home near Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Harbridge is about 3 miles north of Ringwood, in Hampshire. Jobs in Harbridge get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Harbridge is one of 683 places in Hampshire we cover. Our Southampton page covers work nearby, about 18 miles away.
Every address in BH24 is covered for external mastic. Streets in the area include Kent Lane and Churchfield Lane. Other places close to Harbridge include Ibsley (1 mile south-east), Mockbeggar (1 mile east), Ellingham (1 mile south), South Gorley (1 mile east) and Rockford (2 miles south-east). We also work in nearby towns such as Totton (13 miles east), Lymington (14 miles south-east), Romsey (15 miles north-east), New Milton (11 miles south-east), Ringwood (3 miles south) and Barton on Sea (12 miles south-east).
Near you in Harbridge
Around Harbridge, our work takes us to homes and buildings near The Old Beams Inn. Other landmarks nearby include Fordingbridge Doll Museum (2.6 miles north) and St Leonard's Hospital (5.7 miles south-west). For a walk, there’s Linbrook Lake and Blashford Lakes.
Can I do it myself?
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, then guaranteed for a year.
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.
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Harbridge 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.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
Get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.