Essex · England
External Mastic in Great Warley
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Great Warley and across Essex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Weathered mastic that no longer stretches
- Weeds or debris growing in open joints
- Failed seals between different materials
Do you need external mastic in Great Warley?
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.
Look out for any of the following:
- Brick movement joints where the sealant has split
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Plants rooting in failed movement joints
If you let a flat or house near Brentwood station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- Which sealant they’ll use, and why
- Who turns up on the day
- What preparation is included
- How long to leave it before use
External mastic in Great Warley
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we don’t skip that step. Typical jobs include water getting into walls through failed joints and movement joints with cracked, split or missing sealant, across render & cladding joints, joints between brick and frames and copings & trims.
Outside joints can only be sealed when they’re dry, so work in Great Warley is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Great Warley (CM13)
- Region
- Essex
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When it isn’t the sealant
It helps to know what we can’t do:
- Cracking across the wall rather than at a joint
- Walls that need new movement joints cut into them
- Damp that is not coming from the joint
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Great Warley
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Façade panels
What affects the quote in Great Warley
You will get a clear quote before any work starts. It takes into account:
- How easy the joints are to reach
- How many areas need sealing
- Working hours on commercial sites
- Which sealant suits the joint
Combining jobs into one visit usually makes better use of the time than several visits. You’ll get one clear quote for the whole job.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- The address or postcode of the job
Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Towns and villages near Great Warley
What else we do in Great Warley
Great Warley questions
Will you come out to Great Warley?
Yes, Great Warley 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.
Can you help a landlord with a rental near Brentwood station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
How much does external mastic cost in Great Warley?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or drop us an email with a short description of the job.
Are you fully insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do you use backing rod?
That is backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only so it can flex with the joint.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.
What we do, step by step
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Great Warley, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
- Mention any tricky access
Ask for a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Advice
Great Warley buildings and the weather
With historic houses such as Hare Hall (about 3.3 miles west) nearby, there’s older building stock in the area around Great Warley as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Woodlands School Great Warley, its movement joints, gutters and trims need looking after like any other building’s. For an older house near a landmark such as St. Mary the Virgin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Great Warley is about 3 miles south of Brentwood, in Essex. Whether you’re in the middle of Great Warley or further out, external mastic is available for homes and businesses alike. Great Warley is one of 644 towns and villages in Essex we cover for external mastic. You can also see our page for Chelmsford, about 13 miles away.
Every address in CM13 is covered for external mastic. Streets in the area include Forge Close, Dark Lane and Great Warley Street. We also cover Cranham (2 miles south), Puddle Dock (2 miles south), Harold Wood (2 miles west), Upminster (3 miles south-west) and Emerson Park (3 miles south-west). Further out, we also cover Chelmsford (13 miles north-east), Basildon (8 miles east), Harlow (14 miles north-west), Brentwood (3 miles north), Canvey Island (14 miles east) and Billericay (6 miles north-east).
Near you in Great Warley
Typical jobs here are in homes near Thatchers Arms Inn, Brentwood County High School and Tylers Common, among other places. For rail, the closest station is Brentwood station, roughly 1.7 miles north-east. Nearby you’ll also find Upminster Tithe Barn Museum of Nostalgia (2.1 miles south-west) and Spire Hartswood Hospital (0.7 miles north-east). Not far away are Warley Place.
What happens if it’s left?
Sealing over the top of old mastic doesn’t hold for long. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. In a small place like Great Warley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Great Warley
- You choose the colour before work begins
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
- 20+ years of sealant experience
Read what affects the cost and our reviews.
Landlord and commercial work in Great Warley
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.