Reading · England
Window & door mastic in Littlestead Green, Reading
We cover Littlestead Green for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
- Cold air getting in at the frame edge
About our window mastic in Littlestead Green
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. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on window sills, timber windows & doors and aluminium frames, and the jobs we see most are whistling draughts around closed windows and rain getting in at the frame or under the sill.
Outdoor sealant needs dry, clean surfaces, so work on frames around Littlestead Green is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job.

- Location
- Littlestead Green (RG4)
- Wider area
- Reading
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
It helps to know what we cannot do too:
- Draughts through the window seals rather than the frame
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
What we seal
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Towns and villages near Littlestead Green
Other services in Littlestead Green
FAQs for Littlestead Green
Do you cover smaller places like Littlestead Green?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Littlestead Green for window mastic?
Yes. We work across London and the South East, and Littlestead Green is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Do the sealants smell?
Some sealants have a smell while they cure. Ventilation helps.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Landlord and commercial work in Littlestead Green
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Leave it or put it right?
Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. Where a wall is exposed, as many are in small places like Littlestead Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Why choose Mr Mastic in Littlestead Green
- Fully insured
- 12-month guarantee on every job
- 180+ five-star Google reviews
- We never seal over old sealant
Read our cost guide or customer reviews.
The process
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours for a handful of frames, longer for a whole house. Somewhere like Littlestead 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.
- 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.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
- Mention any tricky access
How to get a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Related advice
When to call us in Littlestead Green
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
Keep an eye out for these signs:
- Draughty joints inside around the window
- Draughts coming in around windows and doors
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
For an older house near a landmark such as All Saints Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
What your quote should include
- Are they insured?
- How the surfaces are prepared before sealing
- Who turns up on the day
- How hidden problems are handled
Frames and glazing around Littlestead Green
Historic houses like Mapledurham House (about 3.9 miles west) are a reminder that the area around Littlestead Green has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s 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 site and facilities teams at buildings such as St Martin's Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Reading station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Littlestead Green is about 1 mile north-east of Caversham, in Reading. Littlestead Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Reading, we cover 34 places, and Littlestead Green is one of them.
We work across the RG4 postcode area for window mastic. That includes homes and businesses on Row Lane and Foxhill Lane. Nearby, we also carry out window mastic in Dunsden Green (1 mile east), Caversham Park Village (1 mile south-west), Emmer Green (1 mile south-west), Play Hatch (1 mile south-east) and Caversham (1 mile south-west). Within a short drive, we also cover Norcot (4 miles south-west), West Reading (3 miles south-west), Tilehurst Within (4 miles south-west), Shinfield (6 miles south), Arborfield Garrison (8 miles south) and Horncastle (5 miles south-west).
Local landmarks in Littlestead Green
Typical jobs here are in homes near The Crown Public House, Ali's Pond Local Nature Reserve and Highdown School and Sixth Form Centre. The nearest railway station is Reading station, about 2.3 miles south-west. A little further out are Berkshire Medical Heritage Centre Museum (2.6 miles south) and Broad Street Mall (2.7 miles south-west). Not far away are Alder Moors and South Lake.
How the job changes by surface
Timber windows & doors
Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
