Reading · England
Window & door mastic in Tokers Green, Reading
Window mastic for Tokers Green and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- White mastic on grey or black frames
- Damp patches on the reveal after heavy rain
- Cracked sealant at the sill ends
What we do, step by step
Once we’re on site, 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 a morning for a couple of windows and a door. For a village or hamlet like Tokers Green, the journey is planned in advance: 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.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Getting a quote
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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Window mastic in Tokers Green, done properly
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you have mastic that’s falling out in pieces and sealant in the wrong colour for the frame, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Tokers Green is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Place
- Tokers Green (RG4)
- Region
- Reading
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Damp problems in the wall away from the window
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- Window sills
- Patio & French doors
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Surface by surface
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Tokers Green questions
Is Tokers Green within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Tilehurst station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
When is the sealant fully cured?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you guarantee window mastic?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you reach windows above the ground floor?
Yes, where they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.
Common problems we fix in Tokers Green
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. Backing rod sets the right depth.
Keep an eye out for these signs:
- Black, perished sealant on frames
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
In the older streets around Church of St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- How long the guarantee is
- Whether the sealant suits the joint
- Whether all the old sealant comes out first
- Whether VAT is included
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Looking after it afterwards
After the cure time, these simple habits help:
- Don’t use solvent cleaners on the joint
- Repaint timber before it’s bare
- Don’t paint over the silicone
- Wash the frames with mild soapy water
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Also near Tokers Green
Also in Tokers Green
What window mastic looks like in Tokers Green
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Mapledurham House (about 1.9 miles west) nearby, there’s older building stock in the area around Tokers Green 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.
If you look after a building such as Kidmore End Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Tilehurst station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Tokers Green is about 2 miles north-west of Caversham, in Reading. Tokers Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 34 places across Reading, from the larger towns to small villages.
Here we cover the RG4 postcode area for window mastic. You will find streets such as Tokers Green Lane, Dysonswood Lane and Bardolph's Close. If you are just outside Tokers Green, we cover Chalkhouse Green (1 mile north-east), Caversham Heights (1 mile south), Emmer Green (1 mile south-east), Caversham (2 miles south-east) and Caversham Park Village (2 miles east). Further out, we also cover Norcot (3 miles south-west), West Reading (3 miles south), Tilehurst Within (3 miles south-west), Shinfield (6 miles south), Arborfield Garrison (9 miles south-east) and Horncastle (4 miles south-west).
What’s near Tokers Green
In Tokers Green, that means homes and buildings near Highdown School and Sixth Form Centre, The Pack Saddle pub and The Warwick School. Tokers Green’s nearest station is Tilehurst station, roughly 2.2 miles south-west. Nearby you will also find Broad Street Mall (2.8 miles south) and Royal Berkshire Regiment Museum (2.5 miles south). Green spaces nearby include South Lake and Fobney Island Wetland Reserve.
