Hampshire · England
Sand Mastic in Frostlane
Sand mastic for Frostlane and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
- Draughty sash windows at the surround
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Inspect the joints round the windows every year or so
- Do not paint over the new mastic
- Keep modern sealant off the mastic
- Make sure water runs off the sill
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Sand mastic in Frostlane, done properly
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we will advise if you’re redecorating. Typical jobs include mastic round period door frames that has failed and draughts and rain around sash boxes, on timber door frames, period & listed homes and stone surrounds.
Outdoor sealant needs dry, clean surfaces, so work on frames around Frostlane is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Frostlane (SO45)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Windows and doors in Frostlane
Frostlane is within about 1 mile 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. 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.
Managing a site like Waterside Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Netley station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Frostlane is about 1 mile south-east of Hythe, in Hampshire. Anywhere in SO45, we cover sand mastic for homes and businesses. 683 places in Hampshire are on our list.
Every address in SO45 is within our area for sand mastic. Close by, we work in Hardley (1 mile south), Little Holbury (2 miles south), Holbury (2 miles south), Weston (2 miles north) and Roughdown (2 miles south). Within a short drive, we also cover Winchester (14 miles north), Gosport (11 miles east), Eastleigh (8 miles north), Fareham (8 miles east), Totton (7 miles north-west) and Chandler's Ford (9 miles north).
Local landmarks in Frostlane
Typical jobs here are in homes near Noadswood School. The closest station to Frostlane is Netley station, roughly 2.5 miles north-east of the centre. Well-known places in the area include Royal South Hants Hospital (4 miles north) and Netley Castle (2 miles north-east). For a walk, there’s Mercury Marshes.
FAQs for Frostlane
Is sand mastic in a coastal place like Frostlane any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you work for landlords with property near Netley station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll tell you what to expect for your job.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
How long will you be here?
It depends on the size of the job, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We’ll give you a better idea when we quote.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Where do you work from?
We work from Crawley. Our applicators cover Frostlane, along with the rest of our area.
How the visit works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to a full day, depending on how many windows. Somewhere like Frostlane needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
- Let us know about parking restrictions
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.
Advice
Other services in Frostlane
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Landlords, agents and businesses in Frostlane
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Frostlane, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Masonry that needs repairing
- Putty and glazing repairs
- Sashes that rattle, stick or won’t open
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Stone surrounds
- Brick reveals
- Tenement windows
- Sash and case windows
- Period & listed homes
- Timber door frames
What affects the quote in Frostlane
We don’t publish a price list, because jobs vary so much. What we look at:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether the work is at height
- Whether there’s mould to deal with
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
What to tell us for a quote
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- Whether it has been sealed before
- Where the property is
- Any access issues, like height or stairs
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Do you need sand mastic in Frostlane?
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
The problems people usually mention when they call are:
- Cracked mastic round a front door frame
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
Homes close to St Anne include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- How long to leave it before use
- Which sealant they’ll use, and why
- Whether they’re fully insured
- What happens if they find a problem under the old sealant