Isle of Wight · England

External Mastic in Hillgrove

External mastic for Hillgrove and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.

  • Joints pointed up with cement by mistake
  • Panel joints letting water in
  • Sealant pulling away from one side of the joint

Trusted external mastic in Hillgrove

How the visit works

Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. Somewhere as small as Hillgrove, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We inspect the joints and agree which need resealing and how they’ll be reached.
  2. The old mastic and anything lodged in the joint is removed.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.

Preparing for the visit

  • Tell us about any previous sealing or DIY attempts
  • For business premises, tell us about site rules or sign-in
  • Move anything stored near the joints

Getting a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.

Get a quick quote

Advice

External mastic in Hillgrove, done properly

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 so the joint doesn’t stand out. If you have joints with sealant missing in places and moss and dirt in joints with no sealant left, we can put it right, on copings & trims, joints between brick and frames and render & cladding joints alike.

External sealant needs dry, clean surfaces, so work around Hillgrove is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.

Your job is guaranteed for a year, as with all our work.

Location
Hillgrove (PO33)
Region
Isle of Wight
Guarantee
A year, on every job
Quotes
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Keeping the joints in good condition

Once the sealant has cured, a few habits help it last:

  • Keep soil, plants and ivy away from the joints
  • Get split or bare joints resealed while the damage is small
  • Keep water from gutters off the wall
  • Check external joints each spring

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.

Small splits are the time to act. At that stage it’s a simple cut out and reseal.

Should I try it myself first?

The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.

Quotes for external mastic in Hillgrove

The price is agreed before any work begins. It’s based on:

  • Whether old sealant or filler has to be cut out
  • Working hours on commercial sites
  • The amount of work
  • Whether the work is at height

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.

What we need to know

To make quoting easier, please include:

  • Whether it’s a home or a business
  • Access, such as stairs, a lift or height
  • Roughly how big the job is
  • Where the property is

For external mastic in Hillgrove, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Landlord and commercial work in Hillgrove

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

Landlords and agents in Hillgrove can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.

Hillgrove buildings and the weather

With historic houses such as Arreton Manor (about 2.4 miles south) nearby, there’s older building stock in the area around Hillgrove as well as newer homes. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Schools such as Wootton Community Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Homes close to St. Mark's Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. For landlords with property near Smallbrook Junction station, outside joints that have cracked can let damp into a rental, so check them between lets.

Hillgrove is about 2 miles north-east of Newport, in the Isle of Wight. Wherever you are in the PO33 postcode area, we cover external mastic for homes and businesses. Across the Isle of Wight, we cover 125 places, Hillgrove among them. Portsmouth is on our list too, around 10 miles away.

Work in PO33 works the same way as everywhere else we cover. We also cover the places around Hillgrove: Staplers (1 mile south-west), Wootton (1 mile north-east), Fairlee (1 mile west), Cross Lane (1 mile south-west) and Barton (2 miles south-west). We also work in nearby towns such as Ryde (4 miles east), Cowes (4 miles north-west), Sandown (6 miles south-east), Shanklin (6 miles south-east), Ventnor (8 miles south) and East Cowes (3 miles north-west). If you’re somewhere remote, a little more planning is needed, so let us know when you get in touch.

Near you in Hillgrove

Typical jobs here are in homes near The Woodmans Arms, Seaclose Park and Medina College and the streets around them. For rail, the closest station is Smallbrook Junction station, about 4.3 miles east of the centre. A little further out are Carisbrooke Castle (3.2 miles south-west) and Isle of Wight Bus & Coach Museum (1.7 miles west). Open spaces near Hillgrove include Briddlesford Nature Reserve and Mill Hill.

Map of Hillgrove © OpenStreetMap contributors

How the job changes by surface

Concrete and blockwork

Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap so the sealant is not too deep.

Copings and trims

Copings expand and contract through the day, so a flexible sealant suits them best.

What sealant work cannot fix

To be straight with you, there are a few things sealant will not fix:

  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Walls that need new movement joints cut into them
  • Loose or hollow render, which needs re-rendering

Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.

What we seal

  • Joints between brick and frames
  • Render & cladding joints
  • Brickwork movement joints
  • Concrete & block
  • Copings & trims
  • Façade panels

Common questions in Hillgrove

Do you cover smaller places like Hillgrove?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Can you do external mastic in Hillgrove?

Yes. Our work covers London and the South East, and Hillgrove is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us and we’re fully insured.

What is a movement joint?

Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.

Is the work guaranteed?

Yes. There’s a 12-month guarantee on every job, wherever you are.

Can tenants book the work?

Of course. Check with your landlord; we can send the quote to them too.

How do you reach high-level joints?

It depends on the building. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.

Should I try DIY first?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job