Hampshire · England
Sand mastic for sash & case windows in Stone, Hampshire
Window and door surrounds in Stone need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
- Gaps between timber frames and stone or brick
Sand mastic for homes and businesses in Stone
On many period windows, sand mastic looks right and suits the building. Newer frames generally get a flexible sealant instead and we will explain which is best for yours. We work on timber door frames, sash and case windows and stone surrounds, and people most often call us about a silicone bead on a sash window that spoils the look and mastic worn away on windows facing the weather.
Outdoor sealant needs dry, clean surfaces, so work on frames around Stone is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
All our work is covered by our one-year guarantee, wherever you are in Hampshire.
- Where
- Stone (SO45)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Stone
Stone is close to 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 Beaulieu Palace House (about 4.4 miles north-west) nearby, there’s older building stock in the area around Stone as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as St Francis, the joint between an old wall and a newer frame is generally the first place rain gets in.
Stone is about 3 miles north-west of Cowes, in Hampshire. We carry out sand mastic for homeowners, landlords and businesses in Stone. Our Hampshire coverage runs to 683 places, and Stone is one of them. There’s also a page for Southampton, roughly 9 miles from Stone.
We cover every part of SO45 for sand mastic. Nearby, we also carry out sand mastic in Gurnard (3 miles south-east), Cowes (3 miles south-east), Rew Street (4 miles south), Northwood (4 miles south-east) and Great Thorness (4 miles south). Within a short drive, we also cover Gosport (9 miles east), Eastleigh (12 miles north), Fareham (8 miles north-east), Totton (11 miles north-west), Chandler's Ford (13 miles north) and Hedge End (9 miles north).
Landmarks near Stone
Other landmarks nearby include Calshot Castle (2.8 miles north-east) and Sir Max Aitken Museum (3.3 miles south-east). Open spaces near Stone include Mill Hill.
Towns and villages near Stone
What else we do in Stone
When to call us in Stone
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
Around Stone, as everywhere, sand mastic is only as good as the preparation behind it.
What to look for in a quote
- Whether all the old sealant comes out first
- The length of the guarantee
- Is VAT in the price?
- What happens if they find a problem under the old sealant
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows and we leave things clean and tidy. Somewhere like Stone 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 start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Clear the area around the work
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Advice
What sealant work can’t fix
We won’t take on work that won’t last, so these are the limits:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or won’t open
- Putty and glazing repairs
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
Stone questions
Is Stone within the area you cover?
Yes, Stone is covered. 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.
Does living near the coast affect sand mastic in Stone?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
When will the new mastic be hard?
It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.
What does sand mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What affects the quote in Stone
Your quote is based on your job. We take into account:
- How easy the joints are to reach
- Any working-time requirements on site
- Any mould that needs treating
- The type of sealant required
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
What to tell us for a quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
If you’re in Stone and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Find out about consent before window work on a listed home
- Ask us before painting near the mastic
- Take care around the mastic when scraping paint
- Avoid patching sand mastic with silicone
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.