South East England and London

External Mastic in Medway

Covering 68 places across Medway for external mastic, with every joint properly prepared, with a clear quote before we start and a one-year guarantee.

External Mastic across Medway

Call 0345 464 0079

Get a quick quote

Towns we cover in Medway

Sealing brickwork movement joints, render, cladding and façade joints. Choose your town from the list to see local details, or get in touch for a quick quote.

Largest places

External mastic in Medway: how it works

We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. We work on concrete & block, copings & trims and façade panels, and the jobs we see most are failed sealant between panels on a façade and joints where the bead has come unstuck.

A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. It usually takes a few hours for a handful of joints, longer for a whole elevation.

We look at every joint and agree a colour to suit the wall.
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.

What affects the price in Medway

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

Why customers in Medway choose us

Quality sealants from Arbo and Everbuild
A sealant colour to suit the surroundings
Anti-fungal silicone where joints get wet
12-month guarantee on every job

Getting a quote

There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.

Near you in Gillingham

Locally, jobs take us to homes and businesses close to The Robert Napier School, Featherby Junior School and The Robert Napier School. You will also find Holy Trinity Church (within half a mile north-east), The Star pub (0.6 miles west) and Ambley Wood (0.8 miles south). For rail, the closest station is Gillingham (Kent) station, roughly 1.5 miles north-west. Nearby you will also find Medway Maritime Hospital (1.6 miles west) and Six Poor Travellers House (3.3 miles west). The countryside around Gillingham includes Blue Bell Hill and Bishop Saltings.

External mastic across Medway: local notes

From Gillingham, Chatham and Rochester to its smaller places, buildings across Medway have walls, gutters and rooflines of every age. All of them move, so they need a flexible sealant at the right depth.

Hard water across most of the South East leaves limescale on sealant, grout and fittings. Whatever the job in Medway, surfaces are cleaned back properly before new sealant goes in. Medway includes coastal places, where outside joints face more wind, rain and salt than they would inland. Walls facing the sea are usually the first to need attention.

Gillingham: For an older house near a landmark such as Holy Trinity Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Letting a property close to Gillingham (Kent) station? Then outside joints that have cracked can let damp into a rental, so check them between lets.

Honest limits

It helps to know what we cannot do too:

Cutting new joints into brickwork, which is building work rather than sealant work
Render that’s blown, hollow or coming away
Structural movement, which needs a surveyor or engineer

Why act early?

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.

Questions to ask before booking

How long to leave it before use
Whether you can choose the colour
Whether they’re fully insured
The length of the guarantee

Quotes for external mastic in Medway

We don’t publish a price list. The quote depends on:

How much there is to do
Whether the work is at height
How much old sealant there is and how hard it is to remove
Any working-time requirements on site

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.

Asking for a quote

A few details help us give you an accurate quote. When you ask for a quote, tell us:

The problem you’ve noticed
Photos by email, if that’s easy
Where the property is
Whether it has been sealed before

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or drop us an email.

Common problems we fix in Medway

The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.

If you can see any of these, it’s time to have the joints looked at:

Panel joints letting water in
Rain getting behind render or cladding at a joint
Sealant pulling away from one side of the joint
Joints with sealant missing in places

Surface by surface

Render joints

Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and protects the render itself.

Brickwork movement joints

Vertical joints in long brick walls let the brickwork expand without cracking. They’re resealed over backing rod with a low-modulus sealant coloured to suit the wall.

Questions from Medway

I’m a tenant. Can you help?

We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.

Which products do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Should I try DIY first?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

How often do external joints need resealing?

It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.

Will the old sealant be removed?

Yes. All of the old material is cut out and the joint cleaned before resealing.

What is a movement joint?

A vertical gap in a long brick wall is usually a movement joint. It lets the bricks expand without cracking and needs a flexible seal, not mortar.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.

20+ yearsMastic and sealant specialists

ARBOMaster approvedApproved applicator for Arbo sealants

Fully insuredDomestic, commercial and hotels

One-year guaranteeOn every job

4.9 on Google180+ five-star reviews