Essex · England

Doddinghurst External Mastic

External mastic for Doddinghurst, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Moss and dirt in joints with no sealant left
  • Gaps where render, brick and frames meet
  • Leaking joints around cladding and façade panels

External mastic in Doddinghurst

When to call us in Doddinghurst

UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.

The problems people normally mention when they call are:

  • 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

If you live in an older home near Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move.

What to look for in a quote

  • Is the old sealant removed completely?
  • How the joint is cleaned and prepared
  • Whether you can choose the colour
  • Who does the work, and how experienced they are

10 questions to ask before you book

External mastic for homes and businesses in Doddinghurst

Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. Typical jobs include joints with sealant missing in places and joints where the bead has come unstuck, on copings & trims, render & cladding joints and brickwork movement joints.

External sealant needs dry, clean surfaces, so work around Doddinghurst is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Place
Doddinghurst (CM15)
Region
Essex
Guarantee
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Work for landlords, hotels and businesses

Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.

What affects the cost of external mastic

Jobs vary more than people expect. What affects the quote:

  • The size of the job
  • Any working-time requirements on site
  • Any mould that needs treating
  • The old material and how stubborn it is

What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.

Asking for a quote

Before you ask for a quote, have a think about:

  • If it’s domestic, commercial or a hotel
  • Where the property is
  • Photos by email, if that is easy
  • If someone has resealed it before

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

Different surfaces, different methods

Concrete and blockwork

Big joints in concrete need careful depth control. We size the backing rod to the gap so the sealant isn’t too deep.

Cladding and façade panels

Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.

Why it’s worth doing now in Doddinghurst

The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. In a small place like Doddinghurst, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.

Why Doddinghurst customers choose us

  • We’re fully insured
  • Every job guaranteed for a year
  • Rated 4.9 stars on Google
  • Colour agreed with you before we start

Read our cost guide or customer reviews.

Common questions in Doddinghurst

Do you work for landlords with property near Shenfield station?

Yes, we work for landlords and letting agents. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.

Can you do external mastic in Doddinghurst?

Yes. Our work covers London and the South East, and Doddinghurst is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.

Are you insured?

Yes. We’re fully insured for every job we do.

Is it OK to fill a movement joint with cement?

No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.

Why is there a gap in my brick wall?

Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.

Do you work for hotels and businesses?

Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.

Can I add another job to the visit?

Of course. Doing several areas at once is normally more efficient.

What happens on the day

Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Doddinghurst needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  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. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

How to prepare

  • Clear items away from the joints we are working on
  • Mention any leaks or damp you’ve noticed
  • Try not to wet indoor joints just before the visit

Getting a quote

There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.

Get a price

Read more

External mastic in Doddinghurst: local notes

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Ingatestone Hall (about 3.8 miles east) nearby, there’s older building stock in the area around Doddinghurst 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.

For landlords with property near Shenfield station, split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Doddinghurst Infant School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Doddinghurst is about 3 miles north of Brentwood, in Essex. Wherever you are in the CM15 postcode area, our applicators can take on external mastic. Across Essex, we cover 644 places, Doddinghurst among them. There’s also a page for Chelmsford, roughly 9 miles from Doddinghurst.

Our applicators cover all of CM15 for external mastic and the streets around it. Local streets include Rectory Chase, Bakers Meadow and Priory Mead, all of which we cover. Nearby, we also carry out external mastic in Wyatt's Green (1 mile north-east), Swallows Cross (1 mile east), Blackmore (2 miles north), Green Street (2 miles east) and Mountnessing (2 miles east). Within a short drive, we also cover Chelmsford (9 miles north-east), Basildon (9 miles south-east), Harlow (11 miles north-west), Brentwood (3 miles south), Billericay (6 miles south-east) and Rayleigh (14 miles east).

Near you in Doddinghurst

Typical jobs here are in homes near Shenfield High School, among other places. The nearest railway station is Shenfield station, roughly 2.8 miles south-east. Well-known places in the area include Brentwood Community Hospital (3.1 miles south). Green spaces nearby include Thorndon Park.

Map of Doddinghurst © OpenStreetMap contributors

How to look after the new joints

To keep the joints looking good and working properly:

  • Keep water from gutters off the wall
  • Show decorators and builders where the movement joints are
  • Get split or bare joints resealed while the damage is small
  • Keep soil, plants and ivy away from the joints

Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted and spoil the finish.

Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

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