Essex · England
New Build Mastic in Dedham
New build mastic for Dedham, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked caulk along new skirting
- Leaking shower tray seals in a new home
- Gaps behind new kitchen upstands
New build mastic in Dedham
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. Both get the same care over preparation. We work on bathrooms & en suites, windows & doors and skirting & floors, and people most often call us about untidy sealant flagged on a snagging list and plot mastic for developers ahead of handover.
Somewhere as small as Dedham, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Every job comes with a one-year guarantee, wherever you are in Essex.
- Place
- Dedham (CO7)
- Wider area
- Essex
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Don’t wait for the house to settle if water is getting through
- Look at the sealant regularly in the first couple of years
- Resist patching a failed seal with a tube from the DIY shop
- Use the extractor fan every time you shower
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries and can be resealed later.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
Nearby places to Dedham
More services for Dedham
Work for landlords, hotels and businesses
If you manage several properties in or around Dedham, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Landlords and agents in Dedham can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
Signs you need new build mastic in Dedham
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Common reasons people contact us are:
- Skirting joints opening in the first winter
- Shower seals failing in the first year or two
- Sealant that never bonded to the surface
- Second-fix sealing on new plots
For new homes near Manningtree station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- What product goes in the joint
- What happens if the job turns out different
- What guarantee comes with the work
- Whether they’re fully insured
Why deal with it now?
A quick bead over the top of the old sealant can look fine at first, but it can’t bond to what’s underneath. Taking it all out and starting again is the only way to get a lasting seal. Older cottages and farmhouses around Dedham can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit usually makes better use of the time than several visits. We’ll send you a clear quote for the lot.
Why us?
- Over 20 years’ experience
- Full insurance on every job
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
New homes and floors in Dedham
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.
Around Dedham, as everywhere, new build mastic is only as good as the preparation behind it.
Dedham is about 6 miles north-east of Colchester, in Essex. Jobs in Dedham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Dedham is one of 644 places in Essex we cover for new build mastic. Chelmsford is on our list too, around 26 miles away.
Here we cover the CO7 postcode area for new build mastic. Streets in the area include High Street, School Lane and The Drift. If you are just outside Dedham, we cover Lamb Corner (1 mile south-west), Dedham Heath (1 mile south), Stratford St Mary (1 mile north-west), Ardleigh Heath (2 miles south) and Higham (2 miles north-west). Larger places within reach include Colchester (6 miles south-west), Clacton-on-Sea (13 miles south-east), Harwich (12 miles east), Camulodunum (7 miles south-west), Halstead (15 miles west) and Greenstead (5 miles south-west).
Around Dedham
Around Dedham, our work takes us to homes and buildings near The Sun Inn and East Bergholt High School, among other places. The nearest railway station is Manningtree station, roughly 2.4 miles east of the centre. A little further out are Severalls Hospital (4.9 miles south-west) and Little Wenham Castle (4.1 miles north-east). Green spaces nearby include Cattawade Marshes.
What affects the cost of new build mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- Working hours on commercial sites
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- What’s wrong with the joints now
- How we’d reach the joints
- Whether it has been sealed before
- Whether it’s a home or a business
We quote each job on its own. Just ring 0345 464 0079 or email us with the details, and photos are welcome.
How the visit works
At the end, we look at the finished work together. The work normally takes a few hours in a single home, depending on how much there is to do. In a small place like Dedham, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We go through the snagging list or plot schedule and agree the joints to do.
- 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.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you’re given the cure time.
How to prepare
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
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Dedham questions
Do you cover smaller places like Dedham?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Dedham in your area for new build mastic?
Yes, Dedham is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
How much does new build mastic cost in Dedham?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in.
How long should I leave it?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Are you insured?
Yes. Mr Mastic is fully insured.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Different surfaces, different methods
Show homes
Show homes need sealant that looks right from day one. Every bead is neat and coloured to suit the room.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.