Windsor and Maidenhead · England
Window & door mastic in Dorney Reach, Windsor and Maidenhead
Our applicators work in Dorney Reach on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Sealant in the wrong colour for the frame
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
Window mastic in Dorney Reach
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for water coming in at the bottom corners of a door and draughts coming in around windows and doors, across patio & French doors, window sills and composite doors.
In a village or hamlet like Dorney Reach, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Dorney Reach (SL6)
- Region
- Windsor and Maidenhead
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What we cannot put right
New sealant can’t fix everything, and we will tell you before any work starts. Sealant will not put right:
- A failed sealed unit that has misted up
- Rotten timber, which needs a joiner first
- Damp coming through the wall itself rather than the frame joint
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
What we seal
- Composite doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Window sills
Windows and doors in Dorney Reach
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Dorney Court (about 0.6 miles south-east) nearby, there’s older building stock in the area around Dorney Reach 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.
For landlords with property near Taplow station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to Church of St James include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Dorney Reach is about 2 miles south-east of Maidenhead, in Windsor and Maidenhead. Jobs in Dorney Reach get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Windsor and Maidenhead, we cover 57 places, Dorney Reach among them. Our Reading page covers work nearby.
Every address in SL6 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Meadow Way, Harcourt Close and Oak Stubbs Lane or a nearby road, we can help. If you’re just outside Dorney Reach, we cover Lake End (1 mile east), Bray (1 mile west), Dorney (1 mile east), Huntercombe (1 mile north-east) and Taplow (2 miles north). Larger places within reach include Windsor (3 miles south-east), Boyn Hill (3 miles west), North Ascot (6 miles south), Cookham (4 miles north-west), Furze Platt (3 miles north-west) and Broomhall (8 miles south).
What’s near Dorney Reach
Around Dorney Reach, our work takes us to homes and buildings near Braywick Park, The E-Act Burnham Park Academy and The Pineapple Public House. The nearest railway station is Taplow station, roughly 1.1 miles north of the centre. Well-known places in the area include The Reitlinger Bequest Museum (1.5 miles north-west) and Windsor Castle (3.6 miles south-east). Open spaces near Dorney Reach include Bray Pit and Taplow Lake.
Questions from Dorney Reach
Can you do window mastic in Dorney Reach?
Yes. We work across London and the South East, and Dorney Reach is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Will you come out to Dorney Reach?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you will get one quote.
What does window mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How long does it take to reseal the windows on a house?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
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.
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a morning for a couple of windows and a door. Somewhere as small as Dorney Reach, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear price.
Related advice
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Surface by surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match keeps the clean look.
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Do you need window mastic in Dorney Reach?
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
The problems people usually mention when they call include:
- Mastic that is falling out in pieces
- Untidy mastic left by window fitters
- Whistling draughts around closed windows
- Sealant in the wrong colour for the frame
Schools such as Dorney School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Who does the work, and how experienced they are
- When the joint can take water or movement
- The length of the guarantee
- Which sealant they’ll use, and why
Nearby places to Dorney Reach
Other services in Dorney Reach
What affects the quote in Dorney Reach
Call for a quick quote. What matters most is:
- The type of sealant required
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- How much there is to do
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- The problem you’ve noticed
- The type of property
- Pictures of the joints, sent by email
For window mastic in Dorney Reach, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
