Essex · England
External Mastic in Pattiswick
Problem with your movement joints in Pattiswick? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
- Brick movement joints where the sealant has split
External mastic for homes and businesses in Pattiswick
Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what access is needed. We work on concrete & block, copings & trims and render & cladding joints, and common reasons people get in touch are brick movement joints where the sealant has split and old sealant gone brittle and cracked.
Outside joints can only be sealed when they’re dry, so work in Pattiswick is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
You are covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.

- Place
- Pattiswick (CM77)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
So the new joints stay in good condition:
- Check external joints each spring
- Never let anyone fill a movement joint with mortar
- Don’t let climbing plants root in the sealant
- Ask before painting over external sealant
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
Surface by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
External mastic in Pattiswick: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Stisted Church of England Primary Academy, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Braintree Freeport station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Pattiswick is about 3 miles east of Braintree, in Essex. Every kind of property in Pattiswick is covered for external mastic. Every job comes with our one-year guarantee. Pattiswick is one of 644 places in Essex we cover for external mastic. We also work in Chelmsford, around 12 miles away.
Every address in CM77 is covered for external mastic. Local streets include Church Road, Old Road and Compasses Road. Nearby, we also carry out external mastic in Stisted (1 mile west), Bradwell (1 mile south-west), Perry Green (2 miles south), Lanham Green (2 miles south-west) and Coggeshall (2 miles south-east). We also work in nearby towns such as Colchester (11 miles east), Chelmsford (12 miles south-west), Braintree (3 miles west), Maldon (11 miles south), Witham (6 miles south) and Camulodunum (10 miles east).
Landmarks near Pattiswick
In Pattiswick, that means homes and buildings near The Honywood Community Science School. The nearest railway station is Braintree Freeport station, roughly 3.3 miles south-west. Well-known places in the area include Halstead Hospital (4.1 miles north) and Laundry & Mangle Museum (1.9 miles south-east). For a walk, there’s Belcher's and Broadfield Woods.
Also near Pattiswick
Also in Pattiswick
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What we are called out for in Pattiswick
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
If you can see any of these, it’s time to have the joints looked at:
- Rigid filler in a joint that should flex
- Panel joints letting water in
- Weathered mastic that no longer stretches
- Sealant that has lost its bond to the brick or render
In the older streets around Church of St Mary The Virgin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before you book
- Is VAT in the price?
- Who does the work, and how experienced they are
- What guarantee comes with the work
- Whether all the old sealant comes out first
Quotes for external mastic in Pattiswick
Your quote is based on your job. We take into account:
- The number and length of the joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Asking for a quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- Access, such as stairs, a lift or height
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
The process
The work is kept neat and contained to the area we are working on, so you can get on with your day. Expect the work to take a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. Somewhere as small as Pattiswick, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Related advice
For landlords and businesses
We also work for property managers and facilities teams in Pattiswick and across Essex. We can quote a run of properties together, and we are fully insured.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Pattiswick questions
Is Pattiswick in your area for external mastic?
Yes, Pattiswick is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do you cover smaller places like Pattiswick?
Yes. Pattiswick is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you reach joints on upper floors?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we will confirm what access is needed.
Can you seal joints between two different materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. We choose one that suits both surfaces.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
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.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
