Essex · England
External Mastic in Navestock Common
We cover Navestock Common for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Brick movement joints where the sealant has split
- Weathered mastic that no longer stretches
- Panel joints letting water in
External mastic for homes and businesses in Navestock Common
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product. Typical jobs include gaps where render, brick and frames meet and rigid filler in a joint that should flex, across joints between brick and frames, brickwork movement joints and render & cladding joints.
In a village or hamlet like Navestock Common, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Whatever the size of the job, you get the same 12-month guarantee in Navestock Common and across Essex.
- Place
- Navestock Common (CM14)
- Region
- Essex
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before we start. The work usually takes anything from a few hours to several days, depending on the building. Somewhere as small as Navestock Common, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
- Mention any sign-in or site rules at work premises
Ask for a quote
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Advice
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How easy the joints are to reach
- Any mould that needs treating
- Any working-time requirements on site
- How many rooms, windows or areas are involved
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.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- What’s wrong with the joints now
- The type of property
- Whether it has been sealed before
- Any access issues, like height or stairs
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Also near Navestock Common
More services for Navestock Common
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
Navestock Common questions
Do you cover Navestock Common for external mastic?
Yes. We work across London and the South East, and Navestock Common is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Will you come out to Navestock Common?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Can you reach joints on upper floors?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer.
Can I add another job to the visit?
Yes. Just list everything you need and we’ll quote it together.
What’s an expansion joint in brickwork?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Point out the joints to other trades
- Walk round the building once a year and look at the joints
- Keep soil, plants and ivy away from the joints
- Keep water from gutters off the wall
Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants are not designed to be painted and spoil the finish.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
Why it’s worth doing now in Navestock Common
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Older cottages and farmhouses around Navestock Common can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why choose Mr Mastic in Navestock Common
- Homes, businesses and hotels
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and our reviews.
What we’re called out for in Navestock Common
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint can’t move, so the wall cracks somewhere else instead.
The most common problems we see are:
- Damp patches traced to an open external joint
- Failed seals between different materials
- Panel joints letting water in
- Rigid filler in a joint that should flex
In the older streets around Church of St Thomas, an extension built onto an older house moves differently, and the joint between them takes the strain.
Before you book anyone
- What insurance they hold
- What guarantee comes with the work
- What preparation is included
- Whether they seal over old material or remove it
When it is not the sealant
In fairness, some problems need a different trade:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Movement that is more than a sealant joint can take
- Cracks in the bricks or render themselves, away from the joints
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before you book.
Surfaces we seal
- Copings & trims
- Façade panels
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
What external mastic looks like in Navestock Common
Historic houses like Hare Hall (about 3.3 miles south) are a reminder that the area around Navestock Common has older buildings as well as new. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Drapers' Academy, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Harold Wood station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Navestock Common is about 4 miles north of Romford, in Essex. From the centre of Navestock Common to the outskirts, external mastic is available for homes and businesses alike. Across Essex, we cover 644 places, Navestock Common among them. There’s also a page for Chelmsford, roughly 14 miles from Navestock Common.
All of CM14 is covered for external mastic, from the main roads to the quietest streets. We also cover the places around Navestock Common: Waterhales (1 mile north-east), St Vincent's Hamlet (1 mile east), Noak Hill (1 mile south-east), Horseman Side (2 miles north-east) and Navestock Heath (2 miles north). Larger places within reach include Chelmsford (14 miles north-east), Basildon (12 miles east), Harlow (10 miles north-west), Brentwood (4 miles east), Billericay (9 miles east) and Loughton (6 miles west).
Around Navestock Common
Typical jobs here are in homes near Dagnam Park. Navestock Common’s nearest station is Harold Wood station, about 3 miles south. Nearby you’ll also find Romford Shopping Hall (3.8 miles south) and Harold Wood Hospital (2.9 miles south). Open spaces near Navestock Common include Bedfords Park.