Wokingham · England
Window & door mastic in Newtown, Wokingham
Mastic around window and door frames, sills and patio doors for homes and businesses in Newtown and across Wokingham. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that has split away from the wall
- Cold air getting in at the frame edge
- Mastic that is falling out in pieces
Aftercare tips
So the new joints stay in good condition:
- Clear any debris from frame drain holes
- Air rooms to keep condensation down around windows
- Keep paint and stain on wooden frames in good order
- Keep paint off silicone joints
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
About our window mastic in Newtown
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on aluminium frames, uPVC windows and window sills, and common reasons people get in touch are mastic that’s falling out in pieces and draughts coming in around windows and doors.
Many houses in smaller places like Newtown have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
Whatever the size of the job, you get the same 12-month guarantee in Newtown and across Wokingham.
- Where
- Newtown (RG1, RG6, RG4)
- Wider area
- Wokingham
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Newtown
Also in Newtown
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself normally takes a morning for a couple of windows and a door, depending on how much there is to do. A visit to Newtown is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
Get a quote
Want a quote for window mastic? Please call 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Newtown homes and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Mapledurham House (about 4.3 miles north-west) are a reminder that the area around Newtown has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Reading station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like New Town Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Homes close to St John and St Stephen include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Newtown is about 1 mile east of Reading, in Wokingham. We carry out window mastic for homes and businesses in Newtown. Newtown is one of 35 towns and villages in Wokingham we cover.
Here we cover the RG1, RG6 and RG4 postcode area for window mastic. Whether your property is on Orts Road, Eldon Road and Amity Road or anywhere close by, we can help. Other places close to Newtown include Lower Caversham (1 mile north-west), Reading (1 mile west), Earley (2 miles south-east), Caversham (2 miles north-west) and Play Hatch (2 miles north). Within a short drive, we also cover Wokingham (5 miles south-east), Crowthorne (9 miles south-east), Winnersh (3 miles south-east), Woosehill (5 miles south-east), Emmbrook (5 miles south-east) and Twyford (4 miles north-east). Newtown is one of the larger places we cover in Wokingham.
What’s near Newtown
Locally, jobs take us to homes and businesses close to University of Reading library, Eldon Square and The Fisherman's Cottage pub, among other places. Other local landmarks include Bulmershe College (under half a mile west) and Maiden Erlegh School (0.6 miles south-east). For rail, the closest station is Reading station, about 1.1 miles west of the centre. Well-known places in the area include The Oracle (1.1 miles west) and Royal Berkshire Hospital (0.6 miles south-west). Open spaces near Newtown include Sonning Hill and Fobney Island Wetland Reserve.
FAQs for Newtown
Can you do window mastic in Newtown?
Yes. Our work covers London and the South East, and Newtown is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Do you cover smaller places like Newtown?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you get sealant to suit coloured frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can new window sealant be painted?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Newtown.
Are you fully insured?
Yes. Full insurance covers our work.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Will new mastic stop draughts?
It will if the frame joint is the problem. We check where the draught is before any work starts.
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In an older home around Newtown, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why us?
- Colour picked to suit the job
- 180+ five-star Google reviews
- One-year guarantee on every job
- Anti-fungal sanitary silicone in wet areas
What affects the quote in Newtown
For a quick quote, just ask. The main things that affect it are:
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
When you contact us, it’s useful to know:
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Whether it has been sealed before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Newtown, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Different surfaces, different methods
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Damp problems in the wall away from the window
- Condensation trapped between the panes
- Draughts through the window seals rather than the frame
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Timber windows & doors
- Window sills
- Aluminium frames
- Patio & French doors
- Composite doors
- uPVC windows