Hampshire · England
External & façade joints in Matchams, Hampshire
External mastic for Matchams, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rain getting behind render or cladding at a joint
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, 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.
External mastic in Matchams, done properly
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. We work on concrete & block, copings & trims and joints between brick and frames, and common reasons people get in touch are rain getting behind render or cladding at a joint and leaking joints around cladding and façade panels.
Outside joints can only be sealed when they’re dry, so work in Matchams is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
We stand behind the work with a one-year guarantee.
- Location
- Matchams (BH24)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Matchams
Letting agents and landlords in Matchams can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
What happens if it’s left?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render near the open joint, so the damage spreads beyond the joint. Around Matchams, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.
Why book with us
- We are fully insured
- Domestic, commercial and hotel work
- Neat joints and a tidy finish
- More than 20 years in sealant work
Take a look at how sealant jobs are priced or what customers say.
Quotes for external mastic in Matchams
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- The size of the job
- Any mould that needs treating
- Which sealant suits the joint
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- How many joints, rooms or windows are involved
- Where the property is
- The type of property
- Pictures of the joints, sent by email
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
Questions from Matchams
Will you come out to Matchams?
Yes, Matchams is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is external mastic in Matchams guaranteed?
All our work, in Matchams and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
How do you reach high-level joints?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Pointing it stops it working, and the wall may crack nearby. We will reseal it with a flexible sealant.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Matchams.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Also near Matchams
Also in Matchams
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. For a village or hamlet like Matchams, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
How to prepare
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Related advice
What we can’t put right
A few problems are outside what sealant work can do:
- Structural movement, which needs a surveyor or engineer
- Cracks in the bricks or render themselves, away from the joints
- Damp that isn’t coming from the joint
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Brickwork movement joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep soil, plants and ivy away from the joints
- Make sure movement joints aren’t pointed over
- Show decorators and builders where the movement joints are
- Have failed joints looked at early
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants are not designed to be painted.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Walls and rooflines in Matchams
Historic houses like Avon Tyrrell House (about 3.6 miles east) are a reminder that the area around Matchams has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Historic houses such as Avon Tyrrell House, about 3.6 miles east, show how far back building around Matchams goes. Around Matchams, as everywhere, external mastic is only as good as the preparation behind it.
Matchams is in Hampshire. Jobs in Matchams get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Matchams is one of 683 places in Hampshire where we work for external mastic. We also work in Southampton, about 20 miles from Matchams.
Every address in BH24 is within our area for external mastic, from the main roads to the quietest streets. External mastic is available to properties on Maple Walk, Ash Tree Close and Sycamore Way and the roads around them. We also cover Avon Castle (1 mile north-east), St Ives (1 mile north), St Leonards (1 mile north-west) and Ashley Heath (2 miles north-west). We also work in nearby towns such as Totton (15 miles north-east), Lymington (12 miles east), New Milton (8 miles south-east), Ringwood (3 miles north-east), Barton on Sea (8 miles south-east) and Ashley (9 miles south-east).
Landmarks near Matchams
Around Matchams, our work takes us to homes and buildings near Avon Heath Country Park, among other places. Well-known places in the area include St Leonard's Hospital (1.7 miles west). The countryside around Matchams includes St Catherine's Hill and Blashford Lakes.