Hampshire · England
Hill Grove External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Hill Grove, with a one-year guarantee on every job. Ask us for a quote.
- Weathered mastic that no longer stretches
- Panel joints letting water in
- Weeds or debris growing in open joints
What the job involves on each surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant coloured to suit the wall.
External mastic for homes and businesses in Hill Grove
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. If you have cracked joints where brick meets render or frames and joints with sealant missing in places, we can help, on brickwork movement joints, copings & trims and joints between brick and frames alike.
Around Hill Grove, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Hill Grove (SO32)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Hill Grove
There’s no set price list, because jobs vary so much. What we look at:
- Access and height
- The number of rooms or windows
- Which sealant suits the joint
- The amount of work
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- Roughly how big the job is
- The address or postcode of the job
- If someone has resealed it before
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.
FAQs for Hill Grove
Can you do external mastic in Hill Grove?
Yes. Our work covers London and the South East, and Hill Grove is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
I let a flat near Botley station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or drop us an email.
Is there a guarantee?
Yes. All our work carries a one-year guarantee.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces with primer where required.
Why act early in Hill Grove
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Older cottages and farmhouses around Hill Grove can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Hill Grove customers choose us
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
- We are fully insured
- We leave the area clean and tidy
See our cost guide or what customers say.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Cracked brickwork or render that needs a builder or plasterer
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before booking.
What we seal
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Façade panels
- Concrete & block
Landlords, agents and businesses in Hill Grove
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Places near Hill Grove
What else we do in Hill Grove
When to call us in Hill Grove
Sometimes a movement joint was filled with mortar or a rigid filler. The joint can’t move, so the wall cracks somewhere else instead.
Any of these means the joints need attention:
- Joints pointed up with cement by mistake
- Panel joints letting water in
- Joints with sealant missing in places
- Sealant that has lost its bond to the brick or render
If you let a flat or house near Botley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before booking anyone
- What happens if the job turns out different
- How long the guarantee is
- How much experience the applicator has
- What the quote includes, VAT included or not
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It generally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Hill Grove, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.
Read more
Walls and rooflines in Hill Grove
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Swanmore Church of England Aided Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Church of St Barnabas include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Hill Grove is about 6 miles east of Hedge End, in Hampshire. Every kind of property in Hill Grove can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Hill Grove is one of 683 places in Hampshire where we work for external mastic. Our Southampton page covers work nearby.
Here we cover the SO32 postcode area for external mastic. Local streets include Droxford Road, Hill Grove Lane and Dodds Lane, and we cover them all. If you’re just outside Hill Grove, we cover Swanmore (1 mile west), Upper Swanmore (1 mile north), Mislingford (1 mile south), Kingsmead (2 miles south) and Shirrell Heath (2 miles south-west). Within a short drive, we also cover Winchester (10 miles north-west), Gosport (10 miles south), Havant (10 miles south-east), Eastleigh (8 miles west), Fareham (6 miles south) and Horndean (7 miles east).
Landmarks near Hill Grove
Locally, jobs take us to homes and businesses close to Swanmore College of Technology. The closest station to Hill Grove is Botley station, about 4.1 miles south-west of the centre. Well-known places in the area include Knowle Hospital (4.4 miles south) and Bishop's Waltham Museum (2.1 miles north-west). The countryside around Hill Grove includes St Clair's Meadow and Beacon Hill.