Hampshire · England
Milford on Sea Sand Mastic
Professional sand mastic in and around Milford on Sea, with old sealant always removed completely and a 12-month guarantee.
- Mastic worn away on windows facing the weather
- Mastic round period door frames that has failed
- Patchy fillers round a sash window
Sand mastic in Milford on Sea, done properly
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We are often asked to deal with open joints round the window box and gaps round a timber door in stone or brick, across period & listed homes, timber door frames and brick reveals.
Homes around Milford on Sea range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
Your job is guaranteed for a year, as with all our work.
- Location
- Milford on Sea (SO41)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Landlords, agents and businesses in Milford on Sea
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Milford on Sea homes and the weather
Milford on Sea 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. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Milford-on-Sea Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Lymington Town station, older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Church of All Saints include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Milford on Sea is about 3 miles south-west of Lymington, in Hampshire. Across the SO41 area, we cover sand mastic for homes and businesses. Across Hampshire, we cover 683 places, Milford on Sea among them. You can also see our page for Southampton, about 16 miles away.
We cover every part of the SO41 postcode area for sand mastic. Local streets include High Street, Love Lane and Greenbanks Close. If you’re just outside Milford on Sea, we cover Lymore (1 mile north-east), Keyhaven (1 mile east), Everton (1 mile north), Lower Pennington (2 miles north-east) and Pennington (2 miles north-east). Further out, we also cover Totton (14 miles north), Hythe (13 miles north-east), New Milton (4 miles north-west), Ringwood (12 miles north-west), Barton on Sea (3 miles west) and Dibden Purlieu (12 miles north-east).
Around Milford on Sea
Typical jobs here are in homes near The Red Lion Public House and Priestlands School, among other places. The closest station to Milford on Sea is Lymington Town station, roughly 3.4 miles north-east. Other landmarks nearby include Yarmouth Castle (4.3 miles east) and Lymington New Forest Hospital (3.6 miles north-east). The countryside around Milford on Sea includes Milford on Sea LNR and Tennyson Down.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It generally takes a few hours per window, depending on the condition of the joints. In a smaller place like Milford on Sea, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- 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
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
Get a quote
If you’re in Milford on Sea 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 you’ll get a clear quote before work begins.
Advice
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Honest limits
In fairness, there are a few things sealant will not fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Broken panes
- Sashes that need overhauling
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals
- Period & listed homes
- Timber door frames
How to look after the new joints
After the cure time, these simple habits help:
- Ask us before painting near the mastic
- Renew mastic before redecorating the windows
- Inspect the joints round the windows every year or so
- Keep modern sealant off the mastic
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
FAQs for Milford on Sea
Is sand mastic in a coastal place like Milford on Sea any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
Do you work for landlords with property near Lymington Town station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
How do I get a quote for sand mastic in Milford on Sea?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
What affects the quote in Milford on Sea
Your quote is based on your job. We take into account:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- Access and height
- Whether there’s mould to deal with
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Any previous sealing or DIY work
- Where the property is
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
How the job changes by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
