Buckinghamshire · England
Window Mastic in Newyears Green
Our applicators work in Newyears Green on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Cracked or shrunken mastic around the frame
- Black, perished sealant on frames
- Rain getting in at the frame or under the sill
How we handle window mastic in Newyears Green
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you’re dealing with cracked or shrunken mastic around the frame and mastic that’s falling out in pieces, we can help.
Somewhere as small as Newyears Green, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
All our work comes with our 12-month guarantee, wherever you are in Buckinghamshire.
- Location
- Newyears Green (UB9)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Common questions in Newyears Green
Is Newyears Green in your area for window mastic?
Yes, Newyears Green is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Can you help a landlord with a rental near West Ruislip station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Will new mastic stop draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we are ARBOMaster approved applicators.
Windows and doors in Newyears Green
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. With historic houses such as Ickenham Hall (about 1.5 miles south-east) nearby, there’s older building stock in the area around Newyears Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Whiteheath Infant and Nursery School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to West Ruislip station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Historic houses such as Ickenham Hall, about 1.5 miles south-east, show how far back building around Newyears Green goes, and older homes nearby need a sealant that suits their walls.
Newyears Green is about 2 miles west of Ruislip, in Buckinghamshire. We carry out window mastic for homes and businesses in Newyears Green and the surrounding area, as part of our work across Buckinghamshire. Our area takes in 263 places across Buckinghamshire, from the larger towns to small villages. We also work in London, about 17 miles from Newyears Green.
Here we cover the UB9 postcode area for window mastic. If you are just outside Newyears Green, we cover South Harefield (1 mile north-west), Ickenham (2 miles south), Denham (2 miles south-west), Ruislip Manor (2 miles east) and Ruislip (2 miles east). Within a short drive, we also cover High Wycombe (13 miles west), Chesham (11 miles north-west), Marlow (14 miles west), Amersham (9 miles north-west), Beaconsfield (8 miles west) and Chalfont St Peter (5 miles west).
Landmarks near Newyears Green
In Newyears Green, that means homes and buildings near Breakspear Arms, Vyners School and Church Field Gardens, among other places. The nearest railway station is West Ruislip station, about 1.2 miles south-east of the centre. Nearby you’ll also find Harefield Hospital (2.1 miles north-west) and The Chimes (2.6 miles south). For a walk, there’s Dews Farm Sand Pits and Northala Fields.
Landlords, agents and businesses in Newyears Green
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
Looking after it afterwards
To keep the joints looking good and working properly:
- Use gentle cleaners on frames and sealant
- Avoid harsh chemicals near the mastic
- Walk round the house once a year and look at the joints
- Keep drainage slots and sill grooves clear
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or send us an email.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Places near Newyears Green
Other services in Newyears Green
Leave it or put it right?
The work is quick compared with the damage it prevents: it takes a few hours for a handful of frames, longer for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. Older cottages and farmhouses around Newyears Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
What you get with us
- We never seal over old sealant
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Neat joints and a tidy finish
See what affects the cost or our reviews.
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Newyears Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any parking rules near the property
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we’ll take it from there.
Advice
How the job changes by surface
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. We seal those with a sealant suited to masonry.
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
