Essex · England
Mundon New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Mundon. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked caulk along new skirting
- Internal frame sealant that has split
- Kitchen sealant that has pulled off the wall
New build mastic in Mundon: local notes
Mundon is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. 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.
If you’ve bought a new home near North Fambridge station, the sealant around baths, showers and frames is worth checking in the first year or two.
Mundon is about 3 miles south of Maldon, in Essex. From the centre of Mundon to the outskirts, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Mundon is one of 644 places in Essex we cover for new build mastic. You can also see our page for Chelmsford, about 10 miles away.
Jobs for new build mastic in CM9 is quoted and booked the same way as anywhere else. Whether your property is on Main Road, Wood Lane and Parsonage Chase or a nearby road, our applicators can take on the job. We also cover the places around Mundon: Latchingdon (2 miles south-east), Maylandsea (2 miles east), Mayland (3 miles east), Althorne (3 miles south-east) and Ostend (5 miles south-east). We also work in nearby towns such as Chelmsford (10 miles west), Basildon (13 miles south-west), Braintree (15 miles north-west), Maldon (3 miles north), Canvey Island (13 miles south-west) and Billericay (13 miles west).
Near you in Mundon
We work in homes and buildings around The White Horse Public House, among other places. For rail, the closest station is North Fambridge station, about 3 miles south of the centre. Open spaces near Mundon include Northey Island.
New build mastic for homes and businesses in Mundon
We work in new homes and on new-build sites across Mundon. One shower or a whole phase of plots, the method does not change: cut out, clean, prime where needed and reseal neatly. We work on plot handovers, show homes and kitchens, and people most often call us about sealant applied over dusty or wet surfaces and messy sealant that spoils new finishes.
For a small place like Mundon, the journey and access are planned in advance, and the work itself is the same as on any site.
Whatever the size of the job, you get the same 12-month guarantee.

- Location
- Mundon (CM9)
- Wider area
- Essex
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Baths and trays that move too much for sealant to cope with
- Settlement cracks that need a surveyor
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Plot handovers
- Kitchens
- Show homes
- Windows & doors
- Bathrooms & en suites
- Skirting & floors
Why it’s worth doing now in Mundon
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. Around Mundon, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why book with us
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- Fully insured
- One-year guarantee on every job
See how sealant jobs are priced and our reviews.
How the visit works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Mundon, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- We check every joint and tell you how long each needs to cure.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Related advice
What affects the quote in Mundon
Call for a quick quote. What matters most is:
- Any mould that needs treating
- Access and height
- When we can work, for business premises
- The size of the job
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Common problems we fix in Mundon
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. As it does, timber shrinks and joints open.
Any of these means the joints need attention:
- Plot mastic for developers ahead of handover
- Sealant applied over dusty or wet surfaces
- Smeared, uneven beads picked up at snagging
- Cracked caulk along new skirting
In and around Mundon, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How long the guarantee is
- What product goes in the joint
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
Mundon: your questions answered
Is Mundon within the area you cover?
Yes, Mundon is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Mundon for new build mastic?
Yes. We work across London and the South East, and Mundon is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Aftercare tips
A little care helps the new joints last. We recommend:
- Get a leaking seal dealt with straight away
- Report sealant problems to your builder during the snagging period
- Follow the cure time we give you
- Avoid scourers and strong chemicals on sealant
Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
