Essex · England

External & façade joints in Great Baddow, Essex

Movement joints in Great Baddow need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.

  • Movement joints filled with mortar instead of sealant
  • Plants rooting in failed movement joints
  • Old sealant gone brittle and cracked

Book external mastic in Great Baddow

External mastic in Great Baddow, done properly

Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where a rigid filler would soon crack. We’re often asked to deal with joints pointed up with cement by mistake and brick movement joints where the sealant has split, across concrete & block, joints between brick and frames and brickwork movement joints.

Around Great Baddow, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.

All of our work is guaranteed for twelve months, in Great Baddow and everywhere else we cover.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Where
Great Baddow (CM2)
Region
Essex
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

What happens if it’s left?

A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and doesn’t last so it’s worth doing right. Homes in smaller places like Great Baddow can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.

Why book with us

  • More than 20 years in sealant work
  • Homes, businesses and hotels
  • Full insurance on every job
  • We agree the colour with you first

Read how sealant jobs are priced and our reviews.

Do you need external mastic in Great Baddow?

Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.

It’s worth asking for a quote if you see:

  • Leaking joints around cladding and façade panels
  • Rain getting behind render or cladding at a joint
  • Sealant pulling away from one side of the joint
  • Joints with sealant missing in places

For site and facilities teams at buildings such as Baddow Hall Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

What your quote should include

  • Whether VAT is included
  • Are they insured?
  • What the cure time is
  • How long the guarantee is

How to choose a mastic man

What external mastic looks like in Great Baddow

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. Historic houses like Danbury Place (about 2.3 miles east) are a reminder that the area around Great Baddow has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

For landlords with property near Chelmsford station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Great Baddow is about 2 miles south-east of Chelmsford, in Essex. Great Baddow gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 644 towns and villages across Essex.

Postcode districts we cover here for external mastic: CM2. Streets in the area include New Road, High Street and Colley Road, all of which we cover. Neighbouring places we cover for external mastic include Sandon (1 mile east), Butt's Green (2 miles south-east), Springfield (2 miles north), Little Baddow (3 miles north-east) and Boreham (4 miles north-east). Larger places within reach include Basildon (10 miles south), Braintree (12 miles north), Brentwood (10 miles south-west), Maldon (8 miles east), Canvey Island (14 miles south) and Billericay (7 miles south-west).

Around Great Baddow

Locally, jobs take us to homes and businesses close to Oaklands Park, White Horse Inn and The Sandon School, among other places. The closest station to Great Baddow is Chelmsford station, about 2 miles north-west. Other landmarks nearby include Bond Street Chelmsford (1.6 miles north-west) and Baddow Hospital (0.6 miles south). Open spaces near Great Baddow include Newland Grove.

Map of Great Baddow © OpenStreetMap contributors

Questions from Great Baddow

Do you cover smaller places like Great Baddow?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

I let a flat near Chelmsford station. Can you help?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.

How long does external mastic take?

That depends on the amount of work, but as a guide it takes a few hours for a handful of joints, longer for a whole elevation. We’ll tell you when we quote.

Where are you based?

Our base is Crawley. We work across South East England, London and Scotland.

Are you insured?

Yes, we are fully insured for domestic and commercial work.

How do you reach high-level joints?

That depends on the building and the joints. Where joints can be reached safely, we’ll do them. Give us some details and we’ll confirm the access.

Do the sealants smell?

That depends on the sealant. Some products have a noticeable smell, others very little.

How long before the joint can be used?

Cure times vary by product and the temperature. Before we leave, we’ll tell you the cure time.

Landlords, agents and businesses in Great Baddow

We work for landlords and letting agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.

What affects the cost of external mastic

For a quick quote, just ask. What matters most is:

  • How many areas need sealing
  • Any working-time requirements on site
  • Whether old sealant or filler has to be cut out
  • Whether there’s mould to deal with

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.

What to tell us for a quote

To make quoting easier, please include:

  • Access, such as stairs, a lift or height
  • What’s wrong with the joints now
  • Any previous sealing or DIY work
  • A few photos by email, if you can

Need a quote? Please phone 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Should I try it myself first?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Honest limits

We will not take on work that will not last, so here’s what sealant can’t put right:

  • Walls that need new movement joints cut into them
  • Failed render or damaged cladding panels
  • Movement that is more than a sealant joint can take

If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.

What we seal

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

How the visit works

The work is kept neat and contained to the area we are working on, so you can get on with your day. The job normally takes a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. For a job in Great Baddow, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  1. We look at every joint and agree a colour to suit the wall.
  2. We take out the old sealant until the faces are sound.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. Primer is applied wherever the sealant needs it.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Getting ready for the visit

  • On commercial sites, let us know about site rules
  • Let us know about earlier repairs to the joints
  • Plan for the work area to be out of bounds to pets and children

How to get a quote

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.

Get a quick quote

Advice

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