Reading · England
New Build Mastic in Trench Green
We cover Trench Green for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
- Leaking shower tray seals in a new home
How we handle new build mastic in Trench Green
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a seal that’s letting water through needs doing now. If you have untidy sealant flagged on a snagging list and plot mastic for developers ahead of handover, we can put it right, on bathrooms & en suites, kitchens and show homes alike.
Older homes in small places like Trench Green often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Trench Green (RG4)
- Region
- Reading
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
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.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
What affects the cost of new build mastic
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Access and height
- How many rooms, windows or areas are involved
- The product the joint needs
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Whether it has been sealed before
- How we’d reach the joints
- Whether it’s a home or a business
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
When to call us in Trench Green
Later trades and the final clean can damage fresh sealant. If it’s disturbed before curing, the joint can be left weak and it shows once the home is in use.
Signs it’s time to call us include:
- Skirting joints opening in the first winter
- Gaps behind new kitchen upstands
- Joints pulling apart as timber shrinks
- Plot mastic for developers ahead of handover
Around Trench Green, as everywhere, new build mastic is only as good as the preparation behind it.
What to look for in a quote
- What happens if the job turns out different
- Which sealant they’ll use, and why
- What the cure time is
- What insurance they hold
Why act early in Trench Green
The builder is generally the first port of call while the snagging or warranty period runs. If it keeps failing or is not dealt with, we can reseal it properly. In a small place like Trench Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, 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’ll explain the quote if you ask.
Why book with us
- We agree the colour with you first
- Approved under the ARBOMaster scheme
- Every job guaranteed for a year
- White, clear, grey or coloured to suit, where the product allows
See our cost guide and what customers say.
Landlord and commercial work in Trench Green
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too in Trench Green and across Reading. Several sites can be quoted together, and we are fully insured for the work.
Towns and villages near Trench Green
What else we do in Trench Green
How it works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes anything from a few hours to several days, depending on the number of plots from start to finish. In a small place like Trench Green, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we are working on
Ask for a quote
For new build mastic in Trench Green, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Trench Green questions
Do you work for landlords with property near Tilehurst station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Trench Green?
Yes. Trench Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What does new build mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we will quote it together.
How long does new build mastic take?
Most jobs take a few hours in a single home. Your quote will say how long we expect yours to take.
Can new sealant go on top of the old bead?
No. Fresh silicone does not stick to the old layer, so it soon lifts and traps water. We cut the old bead out completely.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.
New build mastic around Trench Green
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For new homes near Tilehurst station, it’s worth checking the sealant early, while snags are still fresh.
Trench Green is about 2 miles north-west of Caversham, in Reading. We provide new build mastic to homes and businesses in Trench Green and the surrounding area, as part of our work across Reading. We cover 34 towns and villages across Reading, large and small.
Work in RG4 is quoted and booked the same way as anywhere else. Neighbouring places we cover for new build mastic include Chazey Heath (1 mile east), Mapledurham (1 mile south-west), Purley on Thames (2 miles south-west), Norcot (2 miles south) and Tilehurst (2 miles south). We also work in nearby towns such as West Reading (3 miles south), Shinfield (7 miles south-east), Arborfield Garrison (9 miles south-east), Horncastle (3 miles south), Whitley Wood (6 miles south-east) and Fords Farm (4 miles south).
Around Trench Green
Typical jobs here are in homes near Pack Horse Public House and the streets around them. Trench Green’s nearest station is Tilehurst station, about 1.7 miles south. Well-known places in the area include Royal Berkshire Regiment Museum (2.6 miles south) and Battle Hospital (2.6 miles south). The countryside around Trench Green includes Moor Copse Nature Reserve and Sonning Hill.
What we cannot put right
We’ll always be straight with you, so here’s what new sealant won’t do:
- Broken tiles or a split tray
- Deciding who is responsible under a builder’s warranty
- Baths and trays that move too much for sealant to cope with
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Skirting & floors
- Windows & doors
- Show homes
- Kitchens
- Plot handovers
- Bathrooms & en suites