South East England and London

External Mastic in Milton Keynes

From the largest town to the smallest village in Milton Keynes, we can help with external mastic. Clear quotes up front, and a one-year guarantee.

Book external mastic in Milton Keynes

Call 0345 464 0079

Get a quick quote

External mastic in every part of Milton Keynes

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

Largest places

Our external mastic service in Milton Keynes

We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. Common call-outs are for cracked joints where brick meets render or frames and failed sealant between panels on a façade, on concrete & block, joints between brick and frames and copings & trims.

Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work 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.
We take out the old sealant until the faces are sound.
Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
Primer is applied wherever the sealant needs it.
We gun in low-modulus sealant and tool it neatly.

Pricing in Milton Keynes

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, and we’ll explain the quote if you ask.

Why choose Mr Mastic

Every job guaranteed for a year
You choose the colour before work begins
Homes, businesses and hotels
A sealant colour to suit the surroundings

Get a quote

There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or email us.

Around Milton Keynes

In Milton Keynes, that means homes and buildings near South Loughton Valley park, Summerfield School and The Countryman pub. Nearby too are Church of Christ the Cornerstone (less than half a mile north-east) and St Paul's Catholic School (1 mile south-east). There’s a railway station in Milton Keynes itself: Milton Keynes Central station. Nearby you will also find Central Milton Keynes Shopping Centre (0.7 miles north-east) and Badminton Museum (0.7 miles west). Green spaces nearby include Blue Lagoon Park and Lodge Lake.

Walls and rooflines across Milton Keynes

In Milton Keynes, external mastic work takes in houses, flats and commercial buildings, in Bletchley, Newport Pagnell and Bletchley and Fenny Stratford and well beyond. Every outside joint is sealed dry and clean, so the forecast decides the day.

London and the South East are among the drier parts of the UK, though outside sealant still needs a dry, clean joint, so work across Milton Keynes is planned around the weather.

Milton Keynes: Rented homes near Milton Keynes Central station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as Summerfield School, larger buildings have long runs of movement joint that eventually need resealing.

Looking after it afterwards

Simple care keeps the joints in good condition. We recommend:

Check the sealant is paintable before painting near it
Wash walls gently around the sealant
Keep movement joints as flexible joints, not mortar
Clear growth from the base of walls and joints

Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.

Once a joint can’t move, the wall finds another way, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.

Landlord and commercial work in Milton Keynes

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.

When something else is needed

We will always be straight with you, so here’s what new sealant won’t do:

Walls that need new movement joints cut into them
Damp from another source, such as a leaking gutter or a bridged damp-proof course
Failed render or damaged cladding panels

Why deal with it now?

Sealing over the top of old mastic doesn’t hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out.

What your quote should include

Whether the sealant suits the joint
What happens if they find a problem under the old sealant
How long to leave it before use
Whether VAT is included

Why it fails

Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.

The most common problems we see are:

Hard, crazed mastic that has stopped moving
Gaps where render, brick and frames meet
Joints where the bead has come unstuck
Water getting into walls through failed joints

FAQs for Milton Keynes

What information do you need?

Tell us what needs doing and where. We’ll ask anything else we need to know.

Will you leave a mess?

Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.

When is the sealant fully cured?

Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.

Do I need to be at home?

For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.

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, and we will tell you what we are using.

Do you come to Milton Keynes?

Yes. We cover Milton Keynes, as part of our work across South East England, London and Scotland. To book, phone 0345 464 0079 or send us an email.

What is a movement joint?

It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.

20+ yearsMastic and sealant specialists

ARBOMaster approvedApproved applicator for Arbo sealants

Fully insuredDomestic, commercial and hotels

One-year guaranteeOn every job

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