Slough · England
Window & door mastic in Ditton, Slough
Window mastic across Ditton and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Rushed sealant from a window installation
- Sealant in the wrong colour for the frame
- Black, perished sealant on frames
Window mastic for homes and businesses in Ditton
From a single sill to a whole house of windows, the work is priced before anything is done. Just ring 0345 464 0079 or email us and tell us how many frames there are and how they’re reached. If you have draughty joints inside around the window and water coming in at the bottom corners of a door, we can help, on window sills, aluminium frames and timber windows & doors alike.
Around Ditton, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

- Location
- Ditton (SL3)
- Region
- Slough
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need window mastic in Ditton
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
Keep an eye out for these signs:
- Rain getting in at the frame or under the sill
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
- Draughty joints inside around the window
If you look after a building such as Castleview Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Before booking anyone
- What insurance they hold
- Who turns up on the day
- How the joint is cleaned and prepared
- Is VAT in the price?
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Why it’s worth doing now in Ditton
Failed mastic isn’t a reason to replace sound windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we will tell you. Where a wall is exposed, as many are in small places like Ditton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Ditton
- Tidy, careful work
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
Your questions about window mastic in Ditton
Can you do window mastic in Ditton?
Yes. Our work covers London and the South East, and Ditton is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Do you work for landlords with property near Datchet station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you when we finish.
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 do one or both.
Do you guarantee window mastic?
Yes. Each job is covered for 12 months, inside or out.
Is the new sealant paintable?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
Frames and glazing around Ditton
Historic houses like Frogmore House (about 1.7 miles south-west) are a reminder that the area around Ditton 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 is traditional sand mastic. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St Francis Assisi, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Datchet station, renewing tired window mastic between tenants heads off draught and damp complaints.
Ditton is about 2 miles south-east of Slough, in Slough. We carry out window mastic for homes and businesses in Ditton and nearby, as part of our work across Slough. Ditton is one of 31 places in Slough where we work. You can also see our page for Reading, about 18 miles away.
Work in SL3 is quoted and booked the same way as anywhere else. That includes homes and businesses on Thorn Road, Ditton Road and London Road and the roads around them. Nearby, we also carry out window mastic in Datchet (1 mile south-west), Myrke (1 mile north-west), Brands Hill (1 mile south-east), Sunnymeads (2 miles south) and Colnbrook (2 miles east). Larger places within reach include Cippenham (4 miles north-west), Britwell (4 miles north-west), Burnham (5 miles north-west), Stoke Poges (4 miles north), Huntercombe (4 miles north-west) and Farnham Common (5 miles north-west).
Local landmarks in Ditton
Typical jobs here are in homes near Ditton Park, Ditton Park Academy and Upton Court Grammar School and the streets around them. Ditton’s nearest station is Datchet station, about 0.8 miles south-west. Nearby you’ll also find Upton Hospital (1.5 miles north-west) and Museum of Eton Life (1.9 miles west). Green spaces nearby include Staines Reservoirs and Stoke Common.
Quotes for window mastic in Ditton
You’ll get a clear quote before we start. It takes into account:
- Whether old sealant or filler has to be cut out
- Access and height
- The product the joint needs
- The number of rooms or windows
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
To help us quote quickly, let us know:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- A few photos by email, if you can
- If someone has resealed it before
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details, and photos are welcome.
The process
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Ditton, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Clear items away from the joints we are working on
Getting a quote
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Related advice
Towns and villages near Ditton
Other services in Ditton
Landlord and commercial work in Ditton
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
For anyone letting property in or around Ditton, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
When it isn’t the sealant
To be straight with you, some problems need a different trade:
- Rotten timber, which needs a joiner first
- A door that needs adjusting, rehanging or new seals
- A sash or casement that won’t close properly
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Window sills
- Composite doors
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
