Oxfordshire · England
Window & door mastic in New Town, Oxfordshire
Professional window mastic in and around New Town, with every bit of old sealant taken out first and a 12-month guarantee.
- Damp patches on the reveal after heavy rain
- Mastic that’s falling out in pieces
- Draughty joints inside around the window
Window mastic for homes and businesses in New Town
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before any work starts. Just phone 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. If you are dealing with cracked internal joints between frame and plaster and hard, cracked sealant around windows, we can help.
Homes in small places like New Town often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
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.
- Where
- New Town (RG8)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Frames and glazing around New Town
With historic houses such as Basildon Park (about 1.4 miles north) nearby, there’s older building stock in the area around New Town as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near St Stephen's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Pangbourne station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Basildon C.E. Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
New Town is about 7 miles west of Reading, in Oxfordshire. Whether you are in the middle of New Town or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. New Town is one of 443 places in Oxfordshire we cover for window mastic. For nearby work, see our Reading page.
Here we cover the RG8 postcode area for window mastic. You will find streets such as Wakemans and Pangbourne Road, and we cover them all. If you are just outside New Town, we cover Upper Basildon (1 mile north-west), Stubbles (2 miles west), Burnt Hill (3 miles west), Ashampstead (3 miles west) and Ashampstead Green (3 miles west). Within a short drive, we also cover Didcot (10 miles north-west), Abingdon-on-Thames (15 miles north-west), Wantage (15 miles north-west), Henley-on-Thames (10 miles east), Benson (10 miles north) and Tilehurst (4 miles east).
What’s near New Town
Around New Town, our work takes us to homes and buildings near The Beehive pub and St Andrew's School. The nearest railway station is Pangbourne station, roughly 1.6 miles east. Well-known places in the area include Yattendon Castle (3.5 miles west) and Battle Hospital (5.7 miles east). Not far away are Hosehill Lake and Hartslock.
Nearby places to New Town
What else we do in New Town
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
New Town questions
Can you do window mastic in New Town?
Yes, New Town is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.
Is New Town within the area you cover?
Yes. New Town is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
The process
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes most of a day for a typical house, less for a few frames from start to finish. In a small place like New Town, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Related advice
Different surfaces, different methods
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Why deal with it now?
Resealing frames is a short job: the visit takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. Where a wall is exposed, as many are in small places like New Town, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.
What you get with us
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Sealant colour chosen to suit
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced and customer reviews.
When it isn’t the sealant
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Rotten timber, which needs a joiner first
- Penetrating damp from a failed cavity tray or render
- Draughts through the window seals rather than the frame
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Aluminium frames
- Window sills
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Composite doors
What affects the cost of window mastic
We do not publish a price list. What we look at:
- Access and height
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- How many rooms, windows or areas are involved
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What to tell us for a quote
Before you ask for a quote, have a think about:
- The address or postcode of the job
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Looking after it afterwards
After the cure time, these simple habits help:
- Keep solvents and bleach off the sealant
- Keep timber frames painted
- Wash the frames with mild soapy water
- Don’t aim a pressure washer at the joints
Silicone can’t usually be painted, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
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.