West Sussex · England
New Build Mastic in Ellen's Green
New build mastic across Ellen's Green and nearby, with old sealant always removed completely.
- Gaps behind new kitchen upstands
- Beads laid onto grit and dust from the build
- Cracked caulk along new skirting
What affects the cost of new build mastic
We don’t publish a price list, because no two jobs are the same. What we look at:
- The old material and how stubborn it is
- How easy the joints are to reach
- Any working-time requirements on site
- Mould in or behind the old joints
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. The price is agreed before we begin.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- If someone has resealed it before
- The type of property
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
New build mastic for homes and businesses in Ellen's Green
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 since hurried prep is behind a lot of new-build failures. Typical jobs include shower seals failing in the first year or two and cracked caulk along new skirting, on show homes, skirting & floors and kitchens.
Around Ellen's Green, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Where
- Ellen's Green (RH12)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Ellen's Green
What else we do in Ellen's Green
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours in a single home, depending on the amount of work. In a small place like Ellen's Green, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the snagging list or plot schedule and agree the joints to do.
- Failed or untidy sealant is cut out completely.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Getting a quote
For new build mastic in Ellen's Green, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Related advice
How the job changes by surface
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. We reseal it with a weatherproof, flexible sealant.
Why it’s worth doing now in Ellen's Green
DIY kits don’t solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. Around Ellen's Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
Why choose Mr Mastic in Ellen's Green
- We never seal over old sealant
- Domestic, commercial and hotel work
- Approved under the ARBOMaster scheme
- You choose the colour before work begins
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Wipe joints with warm soapy water
- Don’t wait for the house to settle if water is getting through
- Keep photos and emails about snagging items
- Wait for the cure time before using a resealed shower
Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.
Report failed sealant to the builder while you are in the snagging period. After that, putting it right may fall to you, so raise it early.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
What we cannot put right
It helps to know what we can’t do:
- Deciding who is responsible under a builder’s warranty
- Movement caused by a poorly fitted tray or bath
- Damaged fittings that need replacing
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before you book.
Where we work in Ellen's Green
- Kitchens
- Skirting & floors
- Plot handovers
- Windows & doors
- Show homes
- Bathrooms & en suites
Common questions in Ellen's Green
Is Ellen's Green in your area for new build mastic?
Yes, Ellen's Green is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Ellen's Green?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Why does sealant fail so quickly in new builds?
Cracking in the first couple of years is common as timber and plaster dry out. Rushed application on dusty surfaces makes it worse.
Do you take on second-fix sealing for builders?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send the schedule and any specification and we will give you a quote.
Do you have insurance?
Yes. Full insurance covers our work.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across West Sussex.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How long will you be here?
Typically it takes a few hours for most snagging lists, longer for a run of plots. Larger jobs naturally take longer, and we will tell you how long to expect.
New build mastic in Ellen's Green: local notes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Ellen's Green, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Warnham station, the sealant around baths, showers and frames is worth checking in the first year or two.
Ellen's Green is about 5 miles north-west of Horsham, in West Sussex. For new build mastic in and around Ellen's Green, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover West Sussex, Ellen's Green included. Our West Sussex coverage runs to 371 places, Ellen's Green among them. You can also see our page for Crawley, about 10 miles away.
All of RH12 is within our area for new build mastic, from the main roads to the quietest streets. Neighbouring places we cover for new build mastic include Walliswood (2 miles north-east), Mayes Green (2 miles north), Ewhurst Green (3 miles north), Ewhurst (3 miles north) and Cranleigh (4 miles north-west). We also work in nearby towns such as Crawley (10 miles east), Horsham (5 miles south-east), Broadfield (9 miles east), Storrington (13 miles south), Billingshurst (6 miles south) and Bewbush (9 miles east).
Around Ellen's Green
Ellen's Green’s nearest station is Warnham station, about 4 miles east of the centre. Well-known places in the area include Horsham Hospital (4.8 miles south-east). The countryside around Ellen's Green includes Warnham LNR and Vann Lake.