Windsor and Maidenhead · England
Window & door mastic in Frogmill, Windsor and Maidenhead
Professional window mastic in and around Frogmill, with old sealant always removed completely.
- Untidy mastic left by window fitters
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
Window mastic for homes and businesses in Frogmill
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on uPVC windows, composite doors and timber windows & doors, and people most often call us about gaps where the sill meets the wall and hard, cracked sealant around windows.
Around Frogmill, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
You get a 12-month guarantee, the same in Frogmill as everywhere else we work.
- Where
- Frogmill (SL6)
- Wider area
- Windsor and Maidenhead
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Looking after it afterwards
So the new joints stay in good condition:
- Use gentle cleaners on frames and sealant
- Keep paint and stain on wooden frames in good order
- Do not paint over the silicone
- Keep jet washers away from the mastic
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
Towns and villages near Frogmill
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Elsewhere in Windsor and Maidenhead
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More about window & door mastic
What affects the quote in Frogmill
Your quote is based on your job. We take into account:
- How much old sealant there is and how hard it is to remove
- Access and height
- Any working-time requirements on site
- The number and length of the joints
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
When you call or email, it’s useful to know:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
- A few pictures by email, if you can
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Frogmill homes and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Harleyford Manor (about 1 mile north-east) are a reminder that the area around Frogmill has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Church of St Peter and St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like Danesfield School? Then the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Henley-On-Thames station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Frogmill is about 3 miles south-west of Marlow, in Windsor and Maidenhead. Across the SL6 area, we can carry out window mastic at your property. We cover 57 towns and villages across Windsor and Maidenhead. There’s also a page for Reading, roughly 9 miles from Frogmill.
Postcode districts we cover here for window mastic: SL6. Neighbouring places we cover for window mastic include Medmenham (1 mile north-west), Hurley (1 mile east), Danesfield (1 mile north), Bockmer End (1 mile north) and Cockpole Green (2 miles south-west). Larger places within reach include Maidenhead (4 miles east), Windsor (10 miles south-east), Boyn Hill (5 miles south-east), North Ascot (11 miles south-east), Cookham (4 miles east) and Furze Platt (4 miles east).
Around Frogmill
Locally, jobs take us to homes and businesses close to Black Boys Inn, among other places. The nearest railway station is Henley-On-Thames station, about 3.1 miles west of the centre. Nearby you will also find Marlow Community Hospital (3.2 miles north-east) and Marlow Museum (2.7 miles north-east). For a walk, there’s Hurley Chalk Pit and Weycock Hill.
What the job involves on each surface
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.
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.
Questions from Frogmill
Is Frogmill in your area for window mastic?
Yes. We work across London and the South East, and Frogmill is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Do you cover smaller places like Frogmill?
Yes. Frogmill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
How much does window mastic cost in Frogmill?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email and let us know what needs doing and where.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can you get sealant to suit coloured frames?
Usually, yes. Mention the frame colour when you ask for a quote and we’ll use the nearest match.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house, and the area is left clean. In a small place like Frogmill, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
Ask for 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’ll talk you through the work.
Related advice
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Where a wall is exposed, as many are in small places like Frogmill, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- ARBOMaster approved applicator
- Arbo and Everbuild products
- 20+ years of sealant experience
Take a look at our cost guide or customer reviews.