Windsor and Maidenhead · England
Mastic man in Old Windsor
Careful resealing for Old Windsor homes between the Thames and Windsor Great Park, from riverside houses to family streets near the village centre.
- Old sealant cut out, never covered
- ARBOMaster approved
- One-year guarantee on every job
Mastic and sealant work in Old Windsor
Old Windsor is a village of around 5,000 people, about two and a half miles south-east of Windsor. The River Thames forms its eastern edge and Windsor Great Park its western one, and most of the park lies inside the parish. Mr Mastic covers the village from our base in Crawley, resealing bathrooms and kitchens and renewing the mastic around windows and doors.
In a village like this, a lot of our work is in family homes that have been lived in and updated for years. Whatever we find, we take out the old sealant completely, treat any mould, dry the joint and seal again with a product suited to the job. If you’re unsure whether a tired bath edge really needs doing, our bath resealing page shows what a proper reseal involves.
Village streets between river and park
The village has some very old foundations. The parish church of St Peter and St Andrew was rebuilt in 1218 and restored in 1865, and it has been restored again since a fire in 2008. The Bells of Ouzeley is one of five pubs in the village. Around this older core, most of Old Windsor’s homes are family houses, many extended and refitted over the years.
In homes like these, the sealant jobs are familiar: a bath seal gone black where it meets the tiles, a shower tray pulling away at the corners, kitchen joints that have shrunk back from the worktop, and uPVC windows and conservatories with hard, cracked mastic. Extensions and conservatories add joints where new walls meet old, and those external joints need a flexible sealant that can handle a little movement.
Some homes have large areas of glazing, with patio or bi-fold doors and garden rooms opening onto the outside. Around those frames we use weatherproof sealants laid at the right depth, with backing rod in deeper gaps. Our window mastic guide explains why the depth of the joint matters so much.

Riverside air and a village setting
Old Windsor Lock sits on the riverbank beside the village, and Ham Island, created by a cut made in 1822, lies just across Ham Bridge. Homes near the river face damp air and weather on several sides, and window and door sealant on those elevations works harder than it would on a sheltered street. We pay close attention to sills and the joints underneath, not only the frame edges.
Inside, damp riverside air means bathroom sealant can grow mould faster, so we always use anti-fungal sanitary silicone and leave the joint to cure properly. In a village, parking is rarely a problem, but we still book a time that suits you and keep the bathroom out of use only as long as the cure needs.
Conference venues, pubs and rented homes
At the southern end of the village, the Beaumont estate, once Beaumont College, has been run as a conference centre since 2003. Venues like this have many bathrooms in steady use, and we reseal room by room so the rest stay available. Pubs and restaurants in the village have kitchens and toilets that need hygienic, well-kept seals too, and out-of-hours working can be arranged.
We also reseal for landlords and letting agents between tenancies, so homes are ready for the next move-in.
From first call to finished joint
- Get in touch. Call or email with the job, your postcode and a few photos if you have them.
- Agree the price. You get a clear quote up front, and we book a date that suits you.
- Cut out and prepare. All the old sealant comes out, and the joints are cleaned, treated and dried.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.
Our services in Old Windsor
- Bathroom & kitchen resealing: Bathroom and kitchen joints taken back to a clean, dry surface and finished with fresh anti-fungal silicone that won’t lift.
- Window & door mastic: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
- Commercial & hotel sealant: Commercial washrooms, kitchens and wet areas resealed floor by floor, so only a few rooms are out of use at once.
- Remedial sealant & repairs: Failed, botched or over-sealed joints stripped out, the cause found and the joint resealed properly.
- Fire-rated sealant: Gaps in fire-separating walls and floors sealed with fire-rated products, following the tested details for each one.
- External & façade joints: Brickwork movement joints, render and cladding joints resealed with backing rod and flexible exterior sealant.
- New-build mastic & snagging: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for developers.
- Floor & skirting joints: Gaps under skirting boards, tile movement joints and concrete floor joints sealed with a product that suits the traffic.
- Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
- Glazing & conservatory sealant: Glazing joints on conservatories, roof lanterns and screens renewed with a sealant suited to glass and frames.
- Gutter, fascia & soffit sealing: Leaking gutter joints, end caps, fascia and soffit joints resealed with exterior sealant.
- Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.
What you get with Mr Mastic in Old Windsor
We make the trip from Crawley along the M25 to Old Windsor and treat a village visit as a booked job, with the right colours and materials already in hand. Our team has more than 20 years of sealant experience, carries full insurance and is ARBOMaster approved, using Arbo and Everbuild products. With 2,847+ projects finished and a 4.9-star Google rating from over 180 five-star reviews, you can see how others have found us. A clear quote comes first, and every job carries a one-year guarantee.
Getting around Old Windsor
The nearest station to the town centre is Sunnymeads station. Well-known places nearby include Berkshire Yeomanry Museum (1.6 miles north-west) and Windsor Castle (2.1 miles north-west). Around the centre, our work takes us to homes, rentals and businesses close to King's Court First School, Churchmead School, St John's Beaumont School and St Luke. For open space, St Ann's Hill and Virginia Water Lake are close by.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“We had old mastic that needed replacing throughout our kitchen and bathrooms. The mastic man professional was knowledgeable, quoted fairly, and delivered excellent quality work. Highly recommend!”
“Professional mastic man service from start to finish. They assessed the work properly, gave a clear quote, and executed the job perfectly. Very satisfied with the results.”
“1950s terrace on Crossways — bath had black mould coming back constantly. Mr Mastic stripped it all back and did it properly. Bathroom looks brand new.”
Neighbourhoods we cover in Old Windsor
Find your area below, or call 07833 053749 or email us with your postcode and a few details.
Nearby towns we cover
Questions we’re asked in Old Windsor
Do you cover all of Old Windsor?
Yes. We cover the whole village, including the streets near the river and towards Windsor Great Park, plus nearby Windsor, Datchet, Wraysbury and Englefield Green.
My house is near the river and the bathroom sealant keeps going mouldy. What can you do?
We remove the old sealant fully, treat the mould, dry the joint and reseal with anti-fungal sanitary silicone. Good ventilation afterwards helps it stay clean.
Can you reseal around a conservatory?
Yes. We cut out cracked mastic around conservatory frames and where they meet the house, and use a flexible, weatherproof sealant.
Do you work for conference venues and pubs?
Yes. We can reseal room by room and arrange out-of-hours working for commercial jobs.
Can you reseal a kitchen worktop in one visit?
Usually, yes. Most kitchens take a few hours, and we’ll tell you when the area can be used again.
Can you reseal a level-access shower for an older relative?
Yes. We seal wet rooms and level-access showers with a flexible, anti-fungal sanitary silicone and make sure the floor and wall joints are fully watertight.
Do you need to come and look before quoting?
Photos are often enough for a straightforward reseal. For larger or external jobs, we may suggest a visit first.
