Essex · England
External Mastic in Loyter's Green
Professional external mastic in and around Loyter's Green, with every bit of old sealant taken out first.
- Damp patches traced to an open external joint
- Cracked joints where brick meets render or frames
- Joints pointed up with cement by mistake
External mastic in Loyter's Green, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on brickwork movement joints, render & cladding joints and joints between brick and frames, and the jobs we see most are old sealant gone brittle and cracked and damp patches traced to an open external joint.
Older homes in small places like Loyter's Green may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Location
- Loyter's Green (CM17)
- Wider area
- Essex
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we’re called out for in Loyter's Green
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Keep an eye out for any of the following:
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
In the older streets around Parish Church of St Mary Magdalen, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- What product goes in the joint
- How the joint is cleaned and prepared
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render around the joint, so the problem grows beyond the joint itself. Older cottages and farmhouses around Loyter's Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
What you get with us
- 12-month guarantee on every job
- 20+ years of sealant experience
- Tidy, careful work
- Anti-fungal silicone where joints get wet
See our cost guide or what customers say.
External mastic in Loyter's Green: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Harlow Mill station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Loyter's Green is about 3 miles east of Harlow, in Essex. Jobs in Loyter's Green get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Essex coverage runs to 644 places, Loyter's Green among them. Our Chelmsford page covers work nearby, about 13 miles away.
All of CM17 is within our area for external mastic, from the main roads to the quietest streets. If you’re just outside Loyter's Green, we cover Matching Tye (1 mile north), Housham Tye (1 mile north-west), Matching (1 mile north), Magdalen Laver (1 mile south) and Newman's End (1 mile north). We also work in nearby towns such as Chelmsford (13 miles east), Harlow (3 miles west), Brentwood (11 miles south-east), Billericay (14 miles south-east), Loughton (10 miles south-west) and Waltham Abbey (10 miles south-west).
Landmarks near Loyter's Green
The closest station to Loyter's Green is Harlow Mill station, about 3 miles north-west. Nearby you will also find Princess Alexandra Hospital (4.6 miles west) and Harlow Mill (3.2 miles north-west). For a walk, there’s Sawbridgeworth Marsh.
Places near Loyter's Green
More services for Loyter's Green
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Deal with leaking gutters that soak the joints below
- Act on the first splits you see
- Clear growth from the base of walls and joints
- Avoid pressure-washing directly into sealant joints
Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
How the job changes by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best in all weathers.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Loyter's Green questions
Do you work for landlords with property near Harlow Mill station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Is Loyter's Green within the area you cover?
Yes, Loyter's Green is covered. We work across 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 do several jobs on one visit?
Yes. More than one area can be quoted together.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Will the new joint stand out?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render so the joint doesn’t draw the eye.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
How we quote for external mastic
There’s no set price list. What we look at:
- The number of rooms or windows
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Access and height
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
What we need to know
To make quoting easier, let us know:
- The address or postcode of the job
- What’s wrong with the joints now
- The type of property
- Photos by email, if that is easy
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. In a small place like Loyter's Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.