Kent · England
New-build mastic & snagging in Underling Green, Kent
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Underling Green and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Internal frame sealant that has split
- Sealant work across a run of new homes
- Joints pulling apart as timber shrinks
About our new build mastic in Underling Green
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on windows & doors, kitchens and plot handovers, and people most often call us about smeared, uneven beads picked up at snagging and gaps between new skirting and floors.
Work in a small place like Underling Green just needs the journey and access planning, and the work itself is the same as on any site.
All of our work is guaranteed for twelve months.
- Where
- Underling Green (TN12)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Nearby places to Underling Green
Also in Underling Green
Landlords, agents and businesses in Underling Green
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Underling Green, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
What we can’t put right
We will not take on work that will not last, so these are the limits:
- Baths and trays that move too much for sealant to cope with
- Settlement cracks that need a surveyor
- Deciding who is responsible under a builder’s warranty
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Bathrooms & en suites
- Skirting & floors
- Show homes
- Windows & doors
- Plot handovers
- Kitchens
How the visit works
Before we leave, we go over the finished joints with you. The work normally takes a few hours in a single home, depending on the amount of work. Somewhere as small as Underling Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Tell us about any water getting in
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
Get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
Read more
Surface by surface
Plot handovers
Developers can send the plot schedule and specification. Sealant work across the plot is covered as agreed.
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one in a matching colour.
Joints and finishes in Underling Green homes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Underling Green, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Marden station, the sealant around baths, showers and frames is worth checking in the first year or two.
Underling Green is about 5 miles south of Maidstone, in Kent. From the centre of Underling Green to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. 922 places in Kent are on our list. Our Crawley page covers work nearby.
Jobs for new build mastic in TN12 is quoted and booked the same way as anywhere else. Other places close to Underling Green include Milebush (1 mile south-west), St Ann's Green (1 mile south), Wanshurst Green (1 mile south), Cross-at-Hand (1 mile east) and Rabbit's Cross (2 miles east). Further out, we also cover Maidstone (5 miles north), Sittingbourne (14 miles north-east), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (11 miles west), Tonbridge (10 miles west) and Kings Hill (7 miles north-west).
Local landmarks in Underling Green
The nearest railway station is Marden station, roughly 1.5 miles south-west of the centre. Well-known places in the area include Oakwood Hospital (5.5 miles north) and South East Romany Museum (1.3 miles south).
Underling Green questions
I let a flat near Marden station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Is Underling Green within the area you cover?
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.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Do you take on second-fix sealing for builders?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.
Is the work guaranteed?
Yes. Each job is guaranteed for twelve months, large or small.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- The product the joint needs
- The old material and how stubborn it is
- Whether the work is at height
- How many areas need sealing
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Any access issues, like height or stairs
- Whether it has been sealed before
- A few photos by email, if you can
- The problem you’ve noticed
If you’re in Underling Green and need new build mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Watch for new gaps as the house dries out
- Report sealant problems to your builder during the snagging period
- Wipe joints with warm soapy water
- Record problems with dated photos
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day.
Report failed sealant to the builder while you are in the snagging period. Once it ends, the repair may be down to you, so raise it early.