Windsor and Maidenhead · England
Window & door mastic in Pinkneys Green, Windsor and Maidenhead
Window mastic in Pinkneys Green from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between the frame and the inside reveal
- Sealant in the wrong colour for the frame
- Old mastic that has gone black or come away
Honest limits
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- A frame that has rotted at the joint
- Penetrating damp from a failed cavity tray or render
- Faulty window hardware
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Window sills
- Composite doors
Window mastic in Pinkneys Green
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We’re often asked to deal with mastic that’s falling out in pieces and mastic that has split away from the wall, on uPVC windows, composite doors and window sills.
Around Pinkneys Green, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
All our work comes with our 12-month guarantee, wherever you are in Windsor and Maidenhead.
- Where
- Pinkneys Green (SL6)
- Region
- Windsor and Maidenhead
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Places near Pinkneys Green
More services for Pinkneys Green
Pinkneys Green: your questions answered
Do you cover smaller places like Pinkneys Green?
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.
Do you work for landlords with property near Furze Platt station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is the work guaranteed?
Yes. Each job is covered for 12 months, inside or out.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
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.
Is there any odour?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator.
Quotes for window mastic in Pinkneys Green
We quote each job individually. These are the things that affect it:
- Access and height
- How much there is to do
- Working hours on commercial sites
- Which sealant suits the joint
Leaving a failed joint generally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- The rough size of the job
- Where the property is
Getting a quote is simple: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Surface by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a handful of frames, longer for a whole house, and we tell you how long to leave it before we go. In a smaller place like Pinkneys Green, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
Ask for a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Why deal with it now?
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Around Pinkneys Green, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why book with us
- Colour picked to suit the job
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- Homes, businesses and hotels
Take a look at our cost guide and what customers say.
What window mastic looks like in Pinkneys Green
With historic houses such as Harleyford Manor (about 2.6 miles north-west) nearby, there’s older building stock in the area around Pinkneys Green as well as newer homes. 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.
Homes close to Church of St. James the Less include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Courthouse Junior School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Furze Platt station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Pinkneys Green is about 1 mile north-west of Maidenhead, in Windsor and Maidenhead. From the centre of Pinkneys Green to the outskirts, window mastic is available for homes and businesses alike. Our area takes in 57 places across Windsor and Maidenhead, from the larger towns to small villages. We also work in Reading, about 11 miles from Pinkneys Green.
Jobs for window mastic in SL6 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Lee Lane, Bix Lane and Edith Road. Neighbouring places we cover for window mastic include Stubbings (1 mile west), Furze Platt (1 mile east), Maidenhead (1 mile south-east), Holloway (1 mile south-west) and Burchett's Green (1 mile west). Larger places within reach include Windsor (7 miles south-east), North Ascot (8 miles south), Dedworth (6 miles south-east), Broomhall (11 miles south-east), South Ascot (10 miles south-east) and Old Windsor (9 miles south-east).
Near you in Pinkneys Green
Typical jobs here are in homes near St Piran's School, Newlands Girls' School and The Robin Hood pub, among other places. Pinkneys Green’s nearest station is Furze Platt station, roughly 1.4 miles east. Nearby you will also find St Mark's Hospital (0.8 miles south-east) and The Reitlinger Bequest Museum (2.5 miles east). Not far away are Taplow Lake and Carpenter's Wood.
For landlords and businesses
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 that we can handle for you.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
