West Berkshire · England
Stratfield Mortimer Window Mastic
Problem with your window and door frames in Stratfield Mortimer? We cut out the old, prepare the joints and apply the right sealant.
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
- Mastic that has split away from the wall
Window mastic in Stratfield Mortimer, done properly
Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before work begins. To get one, call 0345 464 0079 or email us with the number of frames and any access details for window mastic in Stratfield Mortimer. We’re often asked to deal with sealant in the wrong colour for the frame and cracked sealant at the sill ends, on aluminium frames, composite doors and timber windows & doors.
Mastic can only go onto a dry, clean joint, so window work in Stratfield Mortimer is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Stratfield Mortimer (RG7)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Stratfield Mortimer: your questions answered
I let a flat near Mortimer station. Can you help?
Yes, landlords and agents are among the people we work for, 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.
Can you do window mastic in Stratfield Mortimer?
Yes. Our work covers London and the South East, and Stratfield Mortimer is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
How long does it take to reseal the windows on a house?
A few frames take a few hours. You’ll get a timescale with the quote.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Do you guarantee window mastic?
Yes. Our one-year guarantee covers every job.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Places near Stratfield Mortimer
What else we do in Stratfield Mortimer
How to look after the new joints
Aftercare is simple:
- Keep drainage slots and sill grooves clear
- Avoid blasting the frames with a pressure washer
- Avoid harsh chemicals near the mastic
- Air rooms to keep condensation down around windows
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What the job involves on each surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The process
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the work takes most of a day for a typical house, less for a few frames in most cases. Somewhere like Stratfield Mortimer 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.
- 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
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.
Read more
Window mastic in Stratfield Mortimer: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Stratfield Saye House (about 2.7 miles south-east) nearby, there’s older building stock in the area around Stratfield Mortimer 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.
Letting a property close to Mortimer station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Schools such as Mortimer St Mary's C.E. Junior School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Saint John The Evangelist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Stratfield Mortimer is about 4 miles east of Tadley, in West Berkshire. Stratfield Mortimer 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 155 places across West Berkshire. Our Reading page covers work nearby, about 6 miles away.
All of RG7 is covered for window mastic. We cover properties on The Street, Station Road and Blewburton Close. Neighbouring places we cover for window mastic include Mortimer (1 mile west), Goddard's Green (1 mile north), Wokefield (2 miles north-east), West End Green (2 miles south) and Stratfield Saye (2 miles south-east). We also work in nearby towns such as Newbury (12 miles west), Thatcham (9 miles west), Speenhamland (12 miles west), Spencers Wood (4 miles north-east), Calcot (5 miles north) and Shaw (12 miles west).
Local landmarks in Stratfield Mortimer
Around Stratfield Mortimer, our work takes us to homes and buildings near The Willink School and Horse and Groom pub, among other places. There’s a railway station in Stratfield Mortimer itself: Mortimer station. Nearby you’ll also find Calleva Museum (2.6 miles south-west) and Beaumys Castle (2.7 miles east). Green spaces nearby include Hosehill Lake and The Marshes Local Nature Reserve.
What we cannot put right
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- A failed sealed unit that has misted up
- Damp problems in the wall away from the window
- Worn gaskets, brush seals or a door that has dropped
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Stratfield Mortimer
- Timber windows & doors
- Composite doors
- Window sills
- Aluminium frames
- uPVC windows
- Patio & French doors
What affects the cost of window mastic
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- Any working-time requirements on site
- Which sealant suits the joint
- The number and length of the joints
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that is easy
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- The address or postcode of the job
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.