Essex · England

External Mastic in Hainault

External mastic in Hainault from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Old sealant gone brittle and cracked
  • Failed seals between different materials
  • Rain getting behind render or cladding at a joint

External mastic for Hainault homes and businesses

About our external mastic in Hainault

Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. If you’re dealing with gaps where render, brick and frames meet and moss and dirt in joints with no sealant left, we can put it right, on render & cladding joints, brickwork movement joints and copings & trims alike.

Homes around Hainault range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.

Each job carries a 12-month guarantee.

Place
Hainault (IG6, IG7, IG8)
Region
Essex
Guarantee
12 months on all our work
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

What the job involves on each surface

Render joints

Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and protects the render itself.

Cladding and façade panels

If the façade has a specified sealant, that is what we use. Send us any details you have about the façade.

What happens on the day

On the day, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work generally takes a few hours to a few days, depending on the length of joint and the access. In a smaller place like Hainault, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. The faces are brushed clean and primed where the product requires it.
  4. We fit closed-cell backing rod to control the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Before we arrive

  • Move anything stored near the joints
  • Keep pets and children clear of the area while we work
  • Mention any tricky access

Getting a quote

To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.

Ask for a quote

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Quotes for external mastic in Hainault

Your quote is based on your job. We take into account:

  • Mould in or behind the old joints
  • How much old sealant there is and how hard it is to remove
  • The type of sealant required
  • The number and length of the joints

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.

Helping us quote

When you contact us, these details help:

  • Where the property is
  • Any access issues, like height or stairs
  • Whether it has been sealed before
  • If it’s domestic, commercial or a hotel

Need a quote? Please call 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.

What happens if it’s left?

Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Around Hainault, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.

Why choose Mr Mastic in Hainault

  • White, clear, grey or another colour, product permitting
  • We’re fully insured
  • Anti-fungal sanitary silicone in wet areas
  • Neat joints and a tidy finish

See what affects the cost or customer reviews.

Walls and rooflines in Hainault

Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Valentines Mansion (about 2.4 miles south-west) are a reminder that the area around Hainault has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.

Rented homes near Seven Kings station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Schools such as Limes Farm Junior School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. In the older streets around St Francis of Assisi, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Hainault is about 2 miles east of Woodford, in Essex. Jobs in Hainault get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 644 places in Essex are on our list, from the larger towns to small villages. We also work in London, around 11 miles away.

Every address in IG6, IG7 and IG8 is within our area for external mastic. We cover properties on Hughes Road, Neville Road and Addison Road and the roads around them. If you are just outside Hainault, we cover Chigwell (1 mile north-west), Woodford Bridge (1 mile west), Woodford Wells (2 miles west), Woodford (2 miles west) and Buckhurst Hill (3 miles north-west). We also work in nearby towns such as Harlow (12 miles north), Brentwood (9 miles east), Billericay (15 miles east), Loughton (3 miles north), Waltham Abbey (7 miles north-west) and Epping (7 miles north).

What’s near Hainault

We work in homes and buildings around Fairlop Waters, The New Fairlop Oak pub and Kantor King Solomon High School and the streets around them. The closest station to Hainault is Seven Kings station, roughly 2.8 miles south. Other landmarks nearby include Redbridge Museum (3.2 miles south) and Claybury Hospital (0.8 miles west). Not far away are Highams Park Lake and Pole Hill.

Map of Hainault © OpenStreetMap contributors

Work for landlords, hotels and businesses

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

For anyone letting property in or around Hainault, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

What sealant work cannot fix

To be straight with you, some problems need a different trade:

  • Damp that isn’t coming from the joint
  • Loose or hollow render, which needs re-rendering
  • Adding movement joints to masonry that has none

If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.

Where we work in Hainault

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

DIY sealant or a professional job?

A DIY attempt does not rule out a professional job. We remove it and do the joint properly.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

Your questions about external mastic in Hainault

Is Hainault within the area you cover?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you do external mastic in Hainault?

Yes, Hainault is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.

How long does the job take?

Most jobs take a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. We’ll confirm how long when we quote.

What’s an expansion joint in brickwork?

It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.

I rent my home. Can I book you?

Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.

Can you quote for more than one area?

Yes. Several rooms, windows or areas can go on one quote.

Is the work guaranteed?

Yes. All our work carries our 12-month guarantee.

What information do you need?

The location, the problem and the rough size of the job. If you can, email a few photos.

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