Essex · England
Upshire External Mastic
Our applicators work in Upshire on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Joints pointed up with cement by mistake
- Gaps where render, brick and frames meet
- Movement joints with cracked, split or missing sealant
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Have failed joints looked at early
- Avoid pressure-washing directly into sealant joints
- Show decorators and builders where the movement joints are
- Make sure movement joints aren’t pointed over
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
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.
External mastic in Upshire
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what access is needed. We work on joints between brick and frames, façade panels and brickwork movement joints, and common reasons people get in touch are failed seals between different materials and movement joints filled with mortar instead of sealant.
External sealant needs dry, clean surfaces, so work around Upshire 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 will sort it.
- Place
- Upshire (EN9)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
What we’re called out for in Upshire
UV, rain and frost all age exterior sealant. 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.
Any of these means the joints need attention:
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
- Gaps where render, brick and frames meet
Letting a property close to Cheshunt station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- What the quote includes, VAT included or not
- What insurance they hold
- What happens if the job turns out different
- Which colour the sealant will be
Common questions in Upshire
Do you work for landlords with property near Cheshunt station?
Yes, we work for landlords and letting agents. 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 we start.
Can you do external mastic in Upshire?
Yes. We work across London and the South East, and Upshire is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do you use backing rod?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
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.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. The sealant is matched to both sides.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
More services for Upshire
What affects the quote in Upshire
The price is agreed before any work begins. It’s based on:
- Whether there’s mould to deal with
- Whether the work is at height
- The number and length of the joints
- How many areas need sealing
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
When you call or email, it’s useful to know:
- How we’d reach the joints
- Photos by email, if that’s easy
- The type of property
- Where the property is
For external mastic in Upshire, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Landlords, agents and businesses in Upshire
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you are set on DIY, put the effort into 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.
Upshire buildings and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Hill Hall (about 4.7 miles east) nearby, there’s older building stock in the area around Upshire as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Homes close to Church of St Thomas include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. Schools such as Upshire Primary Foundation School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Upshire is about 2 miles east of Waltham Abbey, in Essex. For external mastic in and around Upshire, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Essex, Upshire included. 644 places in Essex are on our list, from the larger towns to small villages. For nearby work, see our London page, about 15 miles away.
Work in EN9 works the same way as everywhere else we cover. Neighbouring places we cover for external mastic include Waltham Abbey (2 miles west), High Beech (2 miles south), Debden Green (2 miles south-east), Theydon Bois (3 miles south-east) and Sewardstone (3 miles south-west). We also work in nearby towns such as Harlow (6 miles north-east), Brentwood (12 miles east), Loughton (3 miles south), Epping (3 miles east), Harold Wood (10 miles south-east) and Buckhurst Hill (4 miles south).
Landmarks near Upshire
We work in homes and buildings around King Harold Business & Enterprise Academy and The Woodbine pub and the streets around them. The closest station to Upshire is Cheshunt station, roughly 3.1 miles west. Other landmarks nearby include St. Margaret's Hospital (3.5 miles east) and Epping Signalling Museum (2.9 miles east). The countryside around Upshire includes Home Mead and Lippitts Hill.
How the visit works
On the day, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work starts. The work normally takes anything from a few hours to several days, depending on the building. Somewhere like Upshire needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
- Let us know about parking restrictions
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.