Windsor and Maidenhead · England
New-build mastic & snagging in Cox Green, Windsor and Maidenhead
New build mastic for Cox Green and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Cracks appearing as a new home settles
- Messy sealant that spoils new finishes
- Plot mastic for developers ahead of handover
Joints and finishes in Cox Green homes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Maidenhead station, the sealant around baths, showers and frames is worth checking in the first year or two. In and around Cox Green, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Cox Green is about 1 mile south-west of Maidenhead, in Windsor and Maidenhead. Every kind of property in Cox Green can book us for new build mastic. Every job comes with our 12-month guarantee. 57 places in Windsor and Maidenhead are on our list. You can also see our page for Reading, roughly 11 miles from Cox Green.
Here we cover the SL6 postcode area for new build mastic. That includes homes and businesses on Lock Lane, Curls Road and Thrift Lane and the roads around them. You will find Cox Green on the A404(M), so it’s easy for us to get to. We also cover the places around Cox Green: Boyn Hill (1 mile north-east), Maidenhead (1 mile north-east), Woolley Green (1 mile west), Bray Wick (1 mile east) and Pinkneys Green (2 miles north-west). Larger places within reach include Windsor (5 miles south-east), North Ascot (7 miles south), Cookham (3 miles north), Dedworth (5 miles south-east), Broomhall (9 miles south-east) and South Ascot (8 miles south). Cox Green is among the bigger towns we cover in Windsor and Maidenhead.
Around Cox Green
Locally, jobs take us to homes and businesses close to Ockwells Park, The Crown pub and Cox Green School and the streets around them. For rail, the closest station is Maidenhead station, about 1.1 miles north-east of the centre. A little further out are St Mark's Hospital (1.2 miles north) and The Reitlinger Bequest Museum (1.9 miles north-east). Not far away are Weycock Hill and Taplow Lake.
New build mastic in Cox Green, done properly
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it is not put right, get in touch with us. Typical jobs include internal frame sealant that has split and gaps behind new kitchen upstands, across plot handovers, show homes and bathrooms & en suites.
Homes around Cox Green range from older cottages to newer houses, and their floors range just as widely, from timber that moves with the seasons to tiles laid on concrete. Skirting and threshold joints need a sealant that suits the floor.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Cox Green (SL6)
- Wider area
- Windsor and Maidenhead
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Avoid running a DIY bead over the old one
- Photograph failed sealant before it’s redone
- Wipe joints with warm soapy water
- Report sealant problems to your builder during the snagging period
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
Nearby places to Cox Green
Other services in Cox Green
Different surfaces, different methods
Windows and doors
On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens.
Your questions about new build mastic in Cox Green
Is Cox Green within the area you cover?
Yes, Cox Green is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Maidenhead station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Why has my new-build shower seal failed already?
A new house dries and settles for a year or two, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
Do you have insurance?
Yes. We’re fully insured for every job we do.
Do you guarantee your work?
Yes. Each job is guaranteed for twelve months, large or small.
Can I add another job to the visit?
Yes. Just list everything you need and you’ll get one quote.
When is the best time to reseal in a new build?
That depends on the joint. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Quotes for new build mastic in Cox Green
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The old material and how stubborn it is
- The product the joint needs
- The number of rooms or windows
- The size of the job
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. You will get one clear quote for the whole job.
Asking for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, call 0345 464 0079 or email us.
What we do, step by step
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to several days, depending on the number of plots. For a job in Cox Green, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
Read more
Why act early in Cox Green
Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. You get one visit and one clear quote to plan around. In an older home around Cox Green, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- White, clear, grey or another colour, product permitting
- Approved under the ARBOMaster scheme
- Colour picked to suit the job
- Fully insured
See how sealant jobs are priced and our reviews.