Windsor and Maidenhead · England
Cheapside Window Mastic
Window mastic for Cheapside, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Whistling draughts around closed windows
- Mastic that is falling out in pieces
- Gaps where the sill meets the wall
Window mastic in Cheapside, done properly
Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before any work starts. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached for window mastic in Cheapside. We work on timber windows & doors, patio & French doors and aluminium frames, and people most often call us about cracked sealant at the sill ends and rain getting in at the frame or under the sill.
Homes in small places like Cheapside often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Cheapside (SL5)
- Wider area
- Windsor and Maidenhead
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It generally takes a few hours for a handful of frames, longer for a whole house. For a village or hamlet like Cheapside, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
Quotes for window mastic in Cheapside
We don’t publish a price list. The quote depends on:
- How many areas need sealing
- Whether there’s mould to deal with
- The type of sealant required
- The number and length of the joints
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Helping us quote
To make quoting easier, please include:
- Where the property is
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
Want a quote for window mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
When something else is needed
We will not take on work that will not last, so these are the limits:
- Faulty window hardware
- A frame that has rotted at the joint
- Damp problems in the wall away from the window
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
- Window sills
- Composite doors
Nearby places to Cheapside
Also in Cheapside
Why it’s worth doing now in Cheapside
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. Older cottages and farmhouses around Cheapside can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why book with us
- Any old sealant cut out fully, not covered over
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
- Tidy, careful work
Take a look at how sealant jobs are priced and what customers say.
Common questions in Cheapside
Can you do window mastic in Cheapside?
Yes, Cheapside is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Is Cheapside within the area you cover?
Yes, Cheapside is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. We’ll tell you how long your job needs when we quote.
Is the new sealant paintable?
Silicone generally won’t take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Landlords, agents and businesses in Cheapside
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Cheapside, several properties can go on one quote. Send us the addresses and the work at each.
Different surfaces, different methods
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Frames and glazing around Cheapside
With historic houses such as St Leonard's Hill (about 3.4 miles north) nearby, there’s older building stock in the area around Cheapside as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Church of St Michael and All Angels, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Ascot station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Cheapside CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Cheapside is about 4 miles south of Windsor, in Windsor and Maidenhead. If you need window mastic in Cheapside, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover Windsor and Maidenhead. Across Windsor and Maidenhead, we cover 57 places, Cheapside among them. Our Reading page covers work nearby, about 14 miles away.
Work in SL5 works the same way as everywhere else we cover. Streets in the area include Water Splash Lane, Dorian Drive and Cheapside Road, and we cover them all. Neighbouring places we cover for window mastic include Beggar's Bush (1 mile south-east), Ascot (1 mile south-west), Blacknest (1 mile south-east), Woodside (1 mile north-west) and Sunninghill (1 mile south). Further out, we also cover Maidenhead (8 miles north-west), Windsor (4 miles north), Boyn Hill (7 miles north-west), Cookham (10 miles north), Furze Platt (9 miles north-west) and Dedworth (4 miles north).
What’s near Cheapside
In Cheapside, that means homes and buildings near Papplewick School, Charters School and Thatched Tavern Public House. Cheapside’s nearest station is Ascot station, roughly 1.6 miles south-west of the centre. Nearby you’ll also find Heatherwood Hospital (1.8 miles west) and Berkshire Yeomanry Museum (3.9 miles north-east). For a walk, there’s Virginia Water Lake and Gracious Pond.