Hampshire · England
External Mastic in Crow
Professional external mastic in and around Crow, with every bit of old sealant taken out first.
- Sealant that has lost its bond to the brick or render
- Moss and dirt in joints with no sealant left
- Water getting into walls through failed joints
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
About our external mastic in Crow
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. If you are dealing with weathered mastic that no longer stretches and brick movement joints where the sealant has split, we can help, whatever the surface.
In a village or hamlet like Crow, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Where
- Crow (BH24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Crow
Do you cover Crow for external mastic?
Yes, Crow is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Crow?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
How the visit works
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. The job usually takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. For a village or hamlet like Crow, 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, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
Getting a quote
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Related advice
Other services in Crow
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep high-pressure jets off the joints
- Keep soil, plants and ivy away from the joints
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Do you need external mastic in Crow?
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Signs it’s time to call us include:
- Failed seals between different materials
- Leaking joints around cladding and façade panels
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
Historic houses such as Avon Tyrrell House, about 2.4 miles south-east, show how far back building around Crow goes, and older homes nearby need a sealant that suits their walls.
Questions to ask before you book
- Which sealant they’ll use, and why
- What guarantee comes with the work
- How hidden problems are handled
- When the joint can take water or movement
What the job involves on each surface
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap.
External mastic in Crow: local notes
With historic houses such as Avon Tyrrell House (about 2.4 miles south-east) nearby, there’s older building stock in the area around Crow as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Ringwood Junior School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Crow is in Hampshire. For external mastic in and around Crow, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Hampshire from our Crawley base. Crow is one of 683 places in Hampshire where we work. Our Southampton page covers work nearby (17 miles or so).
All of BH24 is covered for external mastic. We cover properties on Barrack Lane, Wood End Road and Crow Lane. Close by, we work in Upper Kingston (1 mile west), Hightown (1 mile north), Bagnum (1 mile south), Ringwood (1 mile north-west) and Poulner (1 mile north). Further out, we also cover Totton (13 miles north-east), Lymington (11 miles south-east), New Milton (7 miles south-east), Barton on Sea (8 miles south-east), Dibden Purlieu (15 miles east) and Marchwood (14 miles east).
Around Crow
Locally, jobs take us to homes and businesses close to Ringwood School and The Elm Tree Inn, among other places. Other landmarks nearby include St Leonard's Hospital (4.3 miles west). Not far away are Blashford Lakes and Linbrook Lake.
What affects the quote in Crow
Jobs vary more than people expect. The main factors:
- Which sealant suits the joint
- Mould in or behind the old joints
- Working hours on commercial sites
- The number and length of the joints
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- The problem you’ve noticed
- Where the property is
- Whether it’s a home or a business
- Roughly how big the job is
Want a quote for external mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.