Essex · England
Shelley New Build Mastic
Our applicators work in Shelley on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly.
- Worktop and upstand sealant coming away
- Sealant that never bonded to the surface
- Internal frame sealant that has split
What we do, step by step
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for most snagging lists, longer for a run of plots. In a small place like Shelley, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
How to prepare
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
Get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work.
Related advice
New build mastic for homes and businesses in Shelley
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you’re still within the builder’s snagging or warranty period, tell them first and if that stalls, we can do it. We work on kitchens, skirting & floors and windows & doors, and the jobs we see most are sealant applied over dusty or wet surfaces and shower seals failing in the first year or two.
Older homes in small places like Shelley often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
Your job is guaranteed for a year, as with all our work.
- Where
- Shelley (CM5)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Put sealant faults on your snagging list early
- Wait for the cure time before using a resealed shower
- Ventilate bathrooms well, especially in the first year
- Resist patching a failed seal with a tube from the DIY shop
Watch the joints as the house settles. Small gaps can appear as the house dries, and they’re simple to reseal once movement has slowed.
Early snagging is easier snagging. Small faults turn into leaks if left over time.
Your questions about new build mastic in Shelley
Is new build mastic in Shelley guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you cover smaller places like Shelley?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
How long does new build mastic take?
It depends on the size of the job, but most jobs take a few hours in a single home. We’ll give you a better idea when we quote.
Are you insured?
Yes. Mr Mastic is fully insured.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Do you work for developers?
Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved and we will quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
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.
Honest limits
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- Your warranty claim itself, which is between you and the builder
- Settlement cracks that need a surveyor
- Cracked trays, tiles or worktops
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
Joints and surfaces we work on
- Windows & doors
- Skirting & floors
- Kitchens
- Plot handovers
- Show homes
- Bathrooms & en suites
What new build mastic looks like in Shelley
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Shelley, as everywhere, new build mastic is only as good as the preparation behind it. For jobs in and around Shelley, choosing the right material for each joint is as important as a tidy finish.
Shelley is about 7 miles south-east of Harlow, in Essex. Whether you are in the middle of Shelley or further out, we cover new build mastic for every kind of property. Shelley is one of 644 towns and villages in Essex where we work. We also work in Chelmsford, around 11 miles away.
Postcode districts we cover here for new build mastic: CM5. Local streets include St Peter's Avenue, Bewlay Close and Queensway. Neighbouring places we cover for new build mastic include Chipping Ongar (1 mile south), Greensted (1 mile south-west), High Ongar (1 mile south-east), Bobbingworth (1 mile north-west) and Greensted Green (2 miles west). We also work in nearby towns such as Chelmsford (11 miles east), Basildon (14 miles south-east), Harlow (7 miles north-west), Brentwood (7 miles south-east), Billericay (10 miles south-east) and Loughton (9 miles south-west).
What’s near Shelley
Around Shelley, our work takes us to homes and buildings near The Ongar Academy and The Cock Tavern and the streets around them. Other landmarks nearby include Willingale Doe (4 miles north-east) and St. Margaret's Hospital (5.1 miles west). For a walk, there’s Gernon Bushes.
Places near Shelley
Also in Shelley
What affects the cost of new build mastic
Jobs vary more than people expect. The main factors:
- How many rooms, windows or areas are involved
- The type of sealant required
- How easy the joints are to reach
- Working hours on commercial sites
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- Roughly how big the job is
- Access, such as stairs, a lift or height
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job, and pictures are welcome.
Why deal with it now?
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. Around Shelley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why Shelley customers choose us
- Colour agreed with you before work begins
- Anti-fungal silicone where joints get wet
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
For landlords and businesses
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured for the work.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.