Hampshire · England
External Mastic in Highwood
Movement joints in Highwood need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Plants rooting in failed movement joints
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
External mastic in Highwood, done properly
On houses, flats and commercial buildings across Highwood, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We are often asked to deal with damp patches traced to an open external joint and joints where the bead has come unstuck, across copings & trims, render & cladding joints and façade panels.
Older homes in small places like Highwood may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Highwood (BH24)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Highwood, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs 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.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For external mastic in Highwood, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Advice
Nearby places to Highwood
What else we do in Highwood
What the job involves on each surface
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so its sealant has to stay flexible.
Quotes for external mastic in Highwood
For a quick quote, just ask. The main things that affect it are:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Any mould that needs treating
- Any working-time requirements on site
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- The rough size of the job
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Highwood
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
External mastic in Highwood: local notes
Historic houses like Avon Tyrrell House (about 4.6 miles south) are a reminder that the area around Highwood has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Poulner Infant School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Highwood is about 2 miles north-east of Ringwood, in Hampshire. For external mastic in and around Highwood, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base, Highwood included. Our Hampshire coverage runs to 683 places, Highwood among them. We also work in Southampton, around 16 miles away.
Postcode districts we cover here for external mastic: BH24. Other places close to Highwood include Hangersley (1 mile south), Rockford (1 mile north-west), Shobley (1 mile south-east), Forest Corner (1 mile south-east) and Blashford (1 mile west). Further out, we also cover Totton (12 miles east), Lymington (12 miles south-east), Romsey (15 miles north-east), New Milton (9 miles south-east), Barton on Sea (10 miles south-east) and Dibden Purlieu (15 miles east).
Around Highwood
In Highwood, that means homes and buildings near Ringwood School Academy and Alice Lisle Inn, among other places. Nearby you’ll also find St Leonard's Hospital (5.5 miles south-west). For a walk, there’s Linbrook Lake and Blashford Lakes.
Common problems we fix in Highwood
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.
People generally contact us when they notice something like this:
- Plants rooting in failed movement joints
- Gaps where render, brick and frames meet
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
For an older house near a landmark such as St John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- Are they insured?
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
- Which colour the sealant will be
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Why it’s worth doing now in Highwood
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Where a wall is exposed, as many are in small places like Highwood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is generally more efficient than separate visits. We will give you a clear quote for the lot.
Why us?
- Every job guaranteed for a year
- You choose the colour before work begins
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
Take a look at how sealant jobs are priced and customer reviews.
Common questions in Highwood
Is Highwood in your area for external mastic?
Yes. Our work covers London and the South East, and Highwood is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
What guarantee comes with external mastic in Highwood?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you have insurance?
Yes, we’re fully insured for every job we do.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.