Hampshire · England
Sand Mastic in Thorns Beach
We cover Thorns Beach for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Mastic round period door frames that has failed
Sand mastic in Thorns Beach, done properly
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. We are often asked to deal with a silicone bead on a sash window that spoils the look and failed mastic on an exposed elevation, across stone surrounds, sash and case windows and period & listed homes.
Mastic can only go onto a dry, clean joint, so window work in Thorns Beach is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Thorns Beach (SO42)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours per window, depending on the condition of the joints, depending on the amount of work. For a village or hamlet like Thorns Beach, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- 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.
How to prepare
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
Ask for a quote
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Related advice
Thorns Beach questions
Will you come out to Thorns Beach?
Yes, Thorns Beach is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Lymington Pier station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Should I use sand mastic or silicone?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Is the work guaranteed?
Every job comes with our one-year guarantee.
Are you fully insured?
Yes. Full insurance covers our work.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Keeping the joints in good condition
Looking after new joints is easy:
- Avoid heavy scraping on the mastic joint
- Plan mastic work ahead of painting
- Get any rot dealt with first
- Make sure water runs off the sill
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
Common problems we fix in Thorns Beach
Age is the main cause. 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:
- Weathered mastic on the most exposed windows
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
Rented homes near Lymington Pier station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- Whether you can choose the colour
- How long to leave it before use
- Whether VAT is included
- What product goes in the joint
Windows and doors in Thorns Beach
Thorns Beach 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. 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.
Historic houses such as Beaulieu Palace House, about 3.8 miles north, show how far back building around Thorns Beach goes.
Thorns Beach is about 5 miles east of Lymington, in Hampshire. We carry out sand mastic for homes and businesses in Thorns Beach and nearby, as part of our work across Hampshire. Thorns Beach is one of 683 places in Hampshire we cover. Our Southampton page covers work nearby (11 miles or so).
All of SO42 is within our area for sand mastic, from the main roads to the quietest streets. We also cover East End (2 miles west), Norleywood (3 miles west), Hamstead (3 miles south), Cranmore (4 miles south) and Bouldnor (4 miles south). Further out, we also cover Gosport (13 miles east), Eastleigh (15 miles north), Fareham (12 miles north-east), Totton (11 miles north), Chandler's Ford (15 miles north) and Hedge End (12 miles north-east).
Landmarks near Thorns Beach
Thorns Beach’s nearest station is Lymington Pier station, about 3.9 miles west of the centre. A little further out are Yarmouth Castle (4.8 miles south-west) and Beaulieu Abbey And Display Of Monastic Life (4 miles north). The countryside around Thorns Beach includes Boldre Foreshore.
Different surfaces, different methods
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Landlords, agents and businesses in Thorns Beach
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
What affects the cost of sand mastic
The price is agreed before any work begins. It takes into account:
- The size of the job
- The number of rooms or windows
- Any working-time requirements on site
- How easy the joints are to reach
What it costs 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.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The type of property
- The problem you’ve noticed
- Whether it has been sealed before
- The rough size of the job
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job and send photos if you have them.
More services for Thorns Beach
Leave it or put it right?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall so renewing it early protects the window. In a small place like Thorns Beach, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why choose Mr Mastic in Thorns Beach
- An ARBOMaster approved applicator
- Tidy, careful work
- 12-month guarantee on every job
- Anti-fungal sanitary silicone in wet areas
See our cost guide and what customers say.