Hampshire · England
Sand mastic for sash & case windows in Hound, Hampshire
Problem with your window and door surrounds in Hound? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
How we handle sand mastic in Hound
Silicone on a period window often looks wrong and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on timber door frames, period & listed homes and sash and case windows, and people most often call us about weathered mastic on the most exposed windows and crumbling sand mastic round a window.
In a village or hamlet like Hound, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Hound (SO31)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for sand mastic
You’ll get a clear quote before any work starts. It’s based on:
- How many rooms, windows or areas are involved
- The type of sealant required
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Helping us quote
What to tell us when you ask for a quote:
- Roughly how big the job is
- Whether it’s a home or a business
- Any access issues, like height or stairs
- Where the job is, and your postcode
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Places near Hound
What else we do in Hound
Hound homes and the weather
Hound is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Netley station? Then any sash windows need sound mastic to keep draughts and rain out. Managing a site like The Hamble School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Hound is about 3 miles east of Hythe, in Hampshire. Jobs in Hound get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Hound is one of 683 places in Hampshire we cover for sand mastic.
Postcode districts we cover here for sand mastic: SO31. Streets in the area include Hound Road, Hound Road Gardens and Hound Close, and we cover them all. If you’re just outside Hound, we cover Butlocks Heath (1 mile north), Netley (1 mile north-west), Hamble-le-Rice (1 mile south-east), Old Netley (1 mile north-east) and Bursledon (1 mile north-east). Further out, we also cover Winchester (13 miles north), Gosport (9 miles south-east), Havant (15 miles east), Eastleigh (6 miles north), Fareham (6 miles east) and Horndean (14 miles east).
Around Hound
Typical jobs here are in homes near Netley Abbey Infant School, Westwood Woodland Park and Prince Consort Public House. There’s a railway station in Hound itself: Netley station. Well-known places in the area include Bursledon Brickworks Industrial Museum (2.2 miles north-east) and Netley Castle (1 mile west). The countryside around Hound includes Mercury Marshes.
Signs you need sand mastic in Hound
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
Any of these means the joints need attention:
- Tired mastic found when preparing windows for paint
- A silicone bead on a sash window that spoils the look
- Old cement repairs round a window that have failed
- Draughts and rain around sash boxes
If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- Are they insured?
- The length of the guarantee
- How the colour is chosen
- Is VAT in the price?
Common questions in Hound
Will you come out to Hound?
Yes, we do. 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 Netley station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
What we cannot put right
Before you book, it’s worth knowing the limits too:
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
- Cracked or broken glass
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Period & listed homes
- Timber door frames
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
The process
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. Somewhere as small as Hound, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- 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.
Before we arrive
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
Getting a quote
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Advice
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
Should I try it myself first?
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.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.