Essex · England

External Mastic in Horseman Side

Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Horseman Side. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Damp patches traced to an open external joint
  • Weathered mastic that no longer stretches
  • Moss and dirt in joints with no sealant left

Need external mastic in Horseman Side?

About our external mastic in Horseman Side

Low-level joints can normally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. We’re often asked to deal with gaps where render, brick and frames meet and sealant pulling away from one side of the joint, across copings & trims, joints between brick and frames and render & cladding joints.

Around Horseman Side, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.

You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Horseman Side (CM14)
Wider area
Essex
Guarantee
12 months on all our work
Price
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

Do you need external mastic in Horseman Side?

UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.

Signs it’s time to call us include:

  • Joints where the bead has come unstuck
  • Leaking joints around cladding and façade panels
  • Weathered mastic that no longer stretches
  • Cracked joints where brick meets render or frames

Schools such as Drapers' Academy are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

What to look for in a quote

  • Which sealant they’ll use, and why
  • What the quote includes, VAT included or not
  • What happens if the job turns out different
  • Who turns up on the day

10 questions to ask before booking

Quotes for external mastic in Horseman Side

The price is agreed before any work begins. It takes into account:

  • Which sealant suits the joint
  • The number of rooms or windows
  • How easy the joints are to reach
  • The number and length of the joints

What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.

Helping us quote

Photos by email are helpful but not essential. Try to tell us:

  • The type of property
  • What the problem is, such as mould, gaps, leaks or cracking
  • How we’d reach the joints
  • 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.

What happens on the day

A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Horseman Side, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  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. We apply the sealant, tool it and check the whole run.

Getting ready for the visit

  • Mention any tricky access
  • Clear items away from the joints we are working on
  • Let us know about parking restrictions

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.

Get a quick quote

Read more

How to look after the new joints

Aftercare is simple, and it makes a real difference:

  • Walk round the building once a year and look at the joints
  • Have failed joints looked at early
  • Clear growth from the base of walls and joints
  • Check the sealant is paintable before painting near it

Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.

Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years so early resealing is worth it.

Outside joints around Horseman Side

With historic houses such as Hill Hall (about 4.2 miles north-west) nearby, there’s older building stock in the area around Horseman Side as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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.

Homes close to Church of St Paul include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Brentwood station? Then outside joints that have cracked can let damp into a rental, so check them between lets.

Horseman Side is about 3 miles north-west of Brentwood, in Essex. Whether you’re in the middle of Horseman Side or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our Essex coverage runs to 644 places, and Horseman Side is one of them. You can also see our page for Chelmsford, roughly 12 miles from Horseman Side.

Here we cover the CM14 postcode area for external mastic. If you need external mastic at a property on Tan House Lane and Horseman Side or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Waterhales (1 mile south-west), Navestock Heath (1 mile north-west), Navestock Side (1 mile north-east), Coxtie Green (1 mile east) and Bentley (1 mile east). Larger places within reach include Chelmsford (12 miles north-east), Basildon (11 miles south-east), Harlow (10 miles north-west), Brentwood (3 miles south-east), Billericay (8 miles east) and Loughton (7 miles west).

What’s near Horseman Side

Typical jobs here are in homes near Weald Country Park and King William IV Public House and the streets around them. For rail, the closest station is Brentwood station, about 3.5 miles south-east of the centre. A little further out are Harold Wood Hospital (3.7 miles south). For a walk, there’s Bedfords Park.

Map of Horseman Side © OpenStreetMap contributors

For landlords and businesses

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

Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.

Why act early in Horseman Side

An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the problem grows beyond the joint itself. Around Horseman Side, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.

Why us?

  • Arbo and Everbuild products
  • A sealant colour to suit the surroundings
  • Anti-fungal sanitary silicone in wet areas
  • 20+ years of sealant experience

See how sealant jobs are priced and what customers say.

Your questions about external mastic in Horseman Side

Is Horseman Side within the area you cover?

Yes, Horseman Side is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

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

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.

How do you reach high-level joints?

It depends on the building. Tell us the height, the number of joints and what’s below them.

When is the sealant fully cured?

Different products cure at different speeds, so please follow the time we give you.

Should I point up the gap in my brickwork?

No. A mortar-filled joint cannot move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.

Is there a guarantee?

Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.

Where are you based?

We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

What colours does the sealant come in?

There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best.

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.

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