West Berkshire · England
Newtown Common Window Mastic
Professional window mastic in and around Newtown Common, with every bit of old sealant taken out first and a one-year guarantee.
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
- Draughts coming in around windows and doors
What affects the quote in Newtown Common
Jobs vary more than people expect. The main factors:
- Working hours on commercial sites
- The number of rooms or windows
- How easy the joints are to reach
- Which sealant suits the joint
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
What to tell us for a quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- How we’d reach the joints
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
About our window mastic in Newtown Common
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. We work on timber windows & doors, aluminium frames and uPVC windows, and the jobs we see most are water coming in at the bottom corners of a door and gaps between the frame and the inside reveal.
In a village or hamlet like Newtown Common, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Big or small, you get the same one-year guarantee in Newtown Common and across West Berkshire.
- Place
- Newtown Common (RG20)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Composite doors
A composite door usually sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so we pay close attention there.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Questions from Newtown Common
Do you cover Newtown Common for window mastic?
Yes. We work across London and the South East, and Newtown Common is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Do you work for landlords with property near Newbury station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
How do I get a quote for window mastic in Newtown Common?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you work on first-floor windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Are you fully insured?
Yes. We are fully insured.
What happens if it’s left?
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Where a wall is exposed, as many are in small places like Newtown Common, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why Newtown Common clients choose us
- Homes, businesses and hotels
- Tidy, careful work
- Over 20 years’ experience
- An ARBOMaster approved applicator
Towns and villages near Newtown Common
What else we do in Newtown Common
Windows and doors in Newtown Common
With historic houses such as Highclere Castle (about 3.1 miles south-west) nearby, there’s older building stock in the area around Newtown Common as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Mary and St John the Baptist, the joint between an old wall and a newer frame is generally the first place rain gets in. For site and facilities teams at buildings such as Horris Hill School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Newbury station, renewing tired window mastic between tenants heads off draught and damp complaints.
Newtown Common is about 2 miles south of Newbury, in West Berkshire. Newtown Common gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Newtown Common is one of 155 towns and villages in West Berkshire where we work. Reading is on our list too, about 16 miles from Newtown Common.
We work across the RG20 postcode area for window mastic and the streets around it. Other places close to Newtown Common include Burghclere Common (1 mile south), Earlstone Common (1 mile south), Sandleford (1 mile north-east), Wash Common (1 mile north-west) and Wash Water (1 mile west). Further out, we also cover Thatcham (4 miles north-east), Burghfield Common (12 miles east), Speenhamland (3 miles north), Hungerford (9 miles west), Calcot (13 miles north-east) and Lambourn (13 miles north-west).
What’s near Newtown Common
In Newtown Common, that means homes and buildings near Park House School and Sandleford Priory, among other places. Newtown Common’s nearest station is Newbury station, roughly 2.2 miles north of the centre. Well-known places in the area include Old Chapel Textile Centre (2.1 miles east) and West Berkshire Community Hospital (3.1 miles north-east). Green spaces nearby include Beacon Hill and Audrey's Meadow.
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Newtown Common, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- 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.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
How to get a quote
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 photos by email if you can.
Related advice
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Paint up to the joint, not over it
- Keep paint and stain on wooden frames in good order
- Make sure the drainage slots aren’t blocked
- Use gentle cleaners on frames and sealant
Silicone can’t usually be painted, so mention any painting plans before we start. There are paintable sealants for joints that need it.
Leaks usually show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.