Hampshire · England
Sand mastic for sash & case windows in Lower Pennington, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Lower Pennington and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Cracked mastic round a front door frame
Your questions about sand mastic in Lower Pennington
Do you cover smaller places like Lower Pennington?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Lower Pennington?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
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.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
Do you work for letting agents?
Yes, often. Several properties can be quoted together.
How long does sand mastic take?
Typically it takes a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we will say how long yours will take.
Can you match the sealant colour?
Generally, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. If you are redecorating the window, ask us first and we will advise.
About our sand mastic in Lower Pennington
We work across Lower Pennington renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. We work on period & listed homes, sash and case windows and tenement windows, and people most often call us about cracked mastic round a front door frame and crumbling sand mastic round a window.
Homes in small places like Lower Pennington often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months.
- Location
- Lower Pennington (SO41)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Go gently near the mastic when preparing windows
- Leave the new mastic unpainted
- Plan mastic work ahead of painting
- Ask the planning authority about consent for listed or conservation-area homes
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Nearby places to Lower Pennington
More services for Lower Pennington
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Lower Pennington, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
Related advice
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Crumbling stone or brickwork round the window
- Sashes that rattle, stick or will not open
- Putty and glazing repairs
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before booking.
What we seal
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals
- Period & listed homes
- Stone surrounds
Leave it or put it right?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. In a small place like Lower Pennington, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us.
Why book with us
- An ARBOMaster approved applicator
- Full insurance on every job
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
Surface by surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Landlord and commercial work in Lower Pennington
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Sand mastic in Lower Pennington: local notes
Lower Pennington 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Lymington Pier station? Then any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Priestlands School, its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Lower Pennington is about 1 mile south of Lymington, in Hampshire. Homes, rented property, offices and hotels in Lower Pennington can book us for sand mastic. The work is guaranteed for a year. Across Hampshire, we cover 683 places, and Lower Pennington is one of them. You can also see our page for Southampton, roughly 14 miles from Lower Pennington.
Work in SO41 works the same way as everywhere else we cover. We also cover the places around Lower Pennington: Pennington (1 mile north), Lymington (1 mile north), Lymore (1 mile west), Keyhaven (1 mile south-west) and Walhampton (2 miles north-east). Further out, we also cover Totton (13 miles north), Hythe (11 miles north-east), New Milton (5 miles west), Ringwood (12 miles north-west), Locks Heath (15 miles north-east) and Warsash (14 miles north-east).
Local landmarks in Lower Pennington
Locally, jobs take us to homes and businesses close to Chequers Inn and Pennington Infant School, among other places. For rail, the closest station is Lymington Pier station, about 1.6 miles north-east of the centre. Nearby you’ll also find St Barbe Museum and Art Gallery (1.4 miles north) and Lymington New Forest Hospital (2 miles north). Green spaces nearby include Lymington and Keyhaven Marshes Nature Reserve.