Isle of Wight · England
Sand Mastic in Cranmore
We cover Cranmore for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Old cement repairs round a window that have failed
- Gaps where the frame meets the masonry
- Window mastic to renew ahead of painting
Sand mastic in Cranmore
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on stone surrounds, period & listed homes and timber door frames, and people most often call us about patchy fillers round a sash window and failed mastic on an exposed elevation.
Outdoor sealant needs dry, clean surfaces, so work on frames around Cranmore is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Cranmore (PO41)
- Region
- Isle of Wight
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Plan mastic work ahead of painting
- Keep modern sealant off the mastic
- Keep sills and gutters clear so water drains away
- Ask a joiner to look at soft timber first
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- Crumbling stone or brickwork round the window
- Broken panes
- Whether work needs listed building consent
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Sash and case windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Tenement windows
- Period & listed homes
Surface by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Period and listed homes
A traditional finish suits a period property.
How the visit works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes anything from a few hours to a full day, depending on how many windows. Somewhere like Cranmore 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.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
Get a quote
If you’re in Cranmore and need sand mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Related advice
Landlord and commercial work in Cranmore
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Cranmore homes and the weather
Cranmore is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Swainston Manor (about 3.4 miles south-east) are a reminder that the area around Cranmore has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Historic houses such as Swainston Manor, about 3.4 miles south-east, show how far back building around Cranmore goes. Managing a site like Shalfleet Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Cranmore is about 6 miles south-east of Lymington, in the Isle of Wight. Every kind of property in Cranmore can book us for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. We cover 125 towns and villages across the Isle of Wight, large and small. For nearby work, see our Southampton page.
We work across the PO41 postcode area for sand mastic and the streets around it. Sand mastic is available to properties on Solent Road, East Close and Cranmore Avenue and the roads around them. Neighbouring places we cover for sand mastic include Hamstead (1 mile north-east), Shalfleet (1 mile south-east), Bouldnor (1 mile west), Yarmouth (2 miles west) and Thorns Beach (4 miles north). Within a short drive, we also cover Newport (6 miles east), Ryde (12 miles east), Cowes (7 miles north-east), Sandown (13 miles east), Shanklin (13 miles south-east) and Ventnor (13 miles south-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
What’s near Cranmore
Cranmore’s nearest station is Lymington Pier station, about 4.9 miles north-west of the centre. Well-known places in the area include Calbourne Water Mill And Rural Museum (2.6 miles south-east) and Yarmouth Castle (2.4 miles west). Not far away are Boldre Foreshore and Compton Down.
Other services in Cranmore
Cranmore: your questions answered
Can you help a landlord with a rental near Lymington Pier station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Will you come out to Cranmore?
Yes. Cranmore is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
Do you have insurance?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Common problems we fix in Cranmore
Paint, silicone or cement used over old mastic causes problems. They don’t move with the timber and we normally remove them.
Any of these means the joints need attention:
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
Letting a property close to Lymington Pier station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before booking anyone
- When the joint can take water or movement
- Whether you can choose the colour
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
Why act early in Cranmore
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. Around Cranmore, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins.
What you get with us
- 20+ years of sealant experience
- Rated 4.9 stars on Google
- Tidy, careful work
- 12-month guarantee on every job
Read how sealant jobs are priced and our reviews.