Isle of Wight · England
Rew Street Sand Mastic
Our applicators work in Rew Street on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
When to call us in Rew Street
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
Keep an eye out for these signs:
- Silicone on a period window that looks wrong
- Mastic round period door frames that has failed
- Open joints round the window box
- Tired mastic found when preparing windows for paint
If you look after a building such as Northwood Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Who does the work, and how experienced they are
- Whether the sealant suits the joint
- Is the old sealant removed completely?
- Which colour the sealant will be
Sand mastic in Rew Street
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We work on stone surrounds, brick reveals and period & listed homes, and common reasons people get in touch are patchy fillers round a sash window and gaps round a timber door in stone or brick.
Mastic can only go onto a dry, clean joint, so window work in Rew Street is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Rew Street (PO31)
- Wider area
- Isle of Wight
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Whether work needs listed building consent
- Broken panes
- Masonry that needs repairing
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Brick reveals
- Timber door frames
- Tenement windows
- Sash and case windows
Why it’s worth doing now in Rew Street
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry so renewing it early protects the window. In a small place like Rew Street, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear price before we start.
Why choose Mr Mastic in Rew Street
- Full insurance on every job
- Experience in homes, commercial sites and hotels
- Rated 4.9 stars on Google
- Anti-fungal sanitary silicone in wet areas
Frames and glazing around Rew Street
Rew Street is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Osborne House (about 2.8 miles east) nearby, there’s older building stock in the area around Rew Street as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to All Saints' Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Rew Street is about 1 mile south-west of Cowes, in the Isle of Wight. Anywhere in PO31, our applicators can take on sand mastic. Our area takes in 125 places across the Isle of Wight, large and small. For nearby work, see our Southampton page.
Work in PO31 works the same way as everywhere else we cover. You will find streets such as Rew Street, Harness Lane and Westview Road, and we cover them all. We also cover the places around Rew Street: Northwood (1 mile east), Gurnard (1 mile north-east), Cowes (1 mile north-east), Great Thorness (2 miles south-west) and Noke Common (2 miles south-east). We also work in nearby towns such as Newport (4 miles south-east), Ryde (8 miles east), Sandown (10 miles south-east), Shanklin (10 miles south-east), Ventnor (12 miles south-east) and Oakfield (8 miles east). For island and remote addresses, the job takes a little more planning, so mention it when you ask for a quote.
What’s near Rew Street
We work in homes and buildings around The Travellers Joy pub and Cowes Enterprise College. Other landmarks nearby include St Mary's Hospital (2.8 miles south-east) and Isle of Wight Natural History Centre (1 mile east). The countryside around Rew Street includes Mill Hill.
Questions from Rew Street
Will you come out to Rew Street?
Yes. Rew Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is sand mastic in a coastal place like Rew Street any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll advise.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Towns and villages near Rew Street
Also in Rew Street
How the visit works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes a few hours for a single window, longer for several. Somewhere like Rew Street needs a little journey planning: 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 look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
Get a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Looking after it afterwards
So the new joints stay in good condition:
- Plan mastic work ahead of painting
- Avoid heavy scraping on the mastic joint
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
Do not run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Quotes for sand mastic in Rew Street
Jobs vary more than people expect. The main factors:
- The size of the job
- How easy the joints are to reach
- When we can work, for business premises
- Which sealant suits the joint
Combining jobs into one visit is normally more efficient than separate visits. We’ll give you a clear price for the lot.
Asking for a quote
When you call or email, these details help:
- If someone has resealed it before
- Whether it’s a home or a business
- How we’d reach the joints
- The problem you’ve noticed
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Landlord and commercial work in Rew Street
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams. Several sites can go on one quote.
