Hampshire · England
Sand mastic for sash & case windows in Hamble-le-Rice, Hampshire
Sand mastic across Hamble-le-Rice and nearby, with old sealant always removed completely.
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Sand mastic in Hamble-le-Rice, done properly
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. If you have crumbling sand mastic round a window and modern sealant on a period surround, we can help.
Many houses in smaller places like Hamble-le-Rice have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

- Location
- Hamble-le-Rice (SO31)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a single window, longer for several. A visit to Hamble-le-Rice is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- 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
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
Get a quote
We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
What we are called out for in Hamble-le-Rice
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
Most people get in touch when they notice one of these:
- Gaps round a timber door in stone or brick
- Mastic dropping out of the joint
- Mastic worn away on windows facing the weather
- Cement or filler used on old window joints that has cracked
Schools such as Hamble Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- How much experience the applicator has
- Whether they seal over old material or remove it
- What happens if the job turns out different
- Which sealant they’ll use, and why
Questions from Hamble-le-Rice
Does the coastal weather in Hamble-le-Rice affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Hamble-le-Rice within the area you cover?
Yes, Hamble-le-Rice is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Do you guarantee sand mastic work?
Every job comes with our one-year guarantee, and we are fully insured.
Where do you work from?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can you do several jobs on one visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
How the job changes by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Windows and doors in Hamble-le-Rice
Hamble-le-Rice 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. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Medieval Merchant's House (about 4.4 miles north-west) nearby, there’s older building stock in the area around Hamble-le-Rice as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Hamble station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Church of St Andrew, the joint between an old wall and a newer frame is generally the first place rain gets in.
Hamble-le-Rice is about 3 miles east of Hythe, in Hampshire. We provide sand mastic to householders, landlords and businesses in Hamble-le-Rice and nearby. We cover 683 towns and villages across Hampshire.
Work in SO31 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on High Street, College Close and Deanfield Close or anywhere close by, our applicators can take on the job. Hamble-le-Rice is on the B3397, which makes it straightforward to reach with everything needed for sand mastic. Nearby, we also carry out sand mastic in Hound (1 mile north-west), Butlocks Heath (1 mile north-west), Netley (2 miles north-west), Bursledon (2 miles north) and Old Netley (2 miles north). We also work in nearby towns such as Winchester (14 miles north), Gosport (8 miles south-east), Havant (15 miles east), Eastleigh (7 miles north), Fareham (6 miles east) and Horndean (14 miles east).
Local landmarks in Hamble-le-Rice
Locally, jobs take us to homes and businesses close to The Hamble School, Hamble Common and Ye Old White Harte Public House. For rail, the closest station is Hamble station, roughly 0.8 miles north. Other landmarks nearby include Coldeast (1.9 miles east) and St Andrew's Castle (0.6 miles south-east). Green spaces nearby include Mercury Marshes.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Sort the mastic before the decorators arrive
- Leave the new mastic unpainted
- Don’t run silicone over sand mastic
- Clear gutters so water doesn’t pour onto the windows
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Nearby places to Hamble-le-Rice
Also in Hamble-le-Rice
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- The size of the job
- How many rooms, windows or areas are involved
- The type of sealant required
- How easy the joints are to reach
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
To make quoting easier, let us know:
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Roughly how big the job is
- The address or postcode of the job
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
What we can’t put right
New sealant cannot fix everything, and we will tell you before work begins. It will not solve:
- Decisions on consent for listed homes
- Decayed frames that need repair
- Damaged stone surrounds
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.
What we seal
- Period & listed homes
- Brick reveals
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
