Hampshire · England
Sand mastic for sash & case windows in Stanmore, Hampshire
Our applicators work in Stanmore on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
Sand mastic for homes and businesses in Stanmore
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on period & listed homes, sash and case windows and tenement windows, and people most often call us about old cement repairs round a window that have failed and cracked mastic round a front door frame.
Homes around Stanmore range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Stanmore (SO22, SO23)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Stanmore
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
When to call us in Stanmore
Rain on the window surround works into any crack and pushes it out. Exposed elevations normally fail first.
The problems people generally mention when they call are:
- Old cement repairs round a window that have failed
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
- Tired mastic found when preparing windows for paint
If you let a flat or house near Winchester station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- How long to leave it before use
- How much experience the applicator has
- What guarantee comes with the work
- Is VAT in the price?
Quotes for sand mastic in Stanmore
We don’t publish a price list, because jobs vary so much. The quote depends on:
- The size of the job
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- The product the joint needs
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
If you are in Stanmore and need sand mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Windows and doors in Stanmore
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Saint Luke, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Stanmore Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Stanmore is about 1 mile south-west of Winchester, in Hampshire. Homes, rented property, offices and hotels in Stanmore can book us for sand mastic. The work is guaranteed for a year. Stanmore is one of 683 places in Hampshire where we work. You can also see our page for Southampton, roughly 10 miles from Stanmore.
Every address in SO22 and SO23 is within our area for sand mastic. That includes homes and businesses on Fox Lane, Kings Road and Romsey Road. You’ll find Stanmore on the A3090, so it’s easy for us to get to. Neighbouring places we cover for sand mastic include Badger Farm (1 mile south), St Cross (1 mile south-east), Oliver's Battery (1 mile south-west), Winchester (1 mile north-east) and Weeke (1 mile north). Larger places within reach include Eastleigh (6 miles south), Fareham (15 miles south-east), Andover (13 miles north-west), Totton (12 miles south-west), Chandler's Ford (5 miles south-west) and Hedge End (10 miles south).
What’s near Stanmore
We work in homes and buildings around White Horse Public House, Kings' School and St. Cross Park, among other places. The closest station to Stanmore is Winchester station, about 1.2 miles north-east. Other landmarks nearby include Winchester Castle (0.9 miles north-east) and Balfour Museum of Hampshire Red Cross History (0.5 miles north-west). For a walk, there’s Winnall Moors and Twyford Down.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What the job involves on each surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Stone surrounds
Stone openings are rarely perfectly straight, so the gap isn’t the same all the way round. Sand mastic is shaped by hand to suit.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Parking around Stanmore is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
Your questions about sand mastic in Stanmore
Do you work for landlords with property near Winchester station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you cover smaller places like Stanmore?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant, and we will explain why.
How much does sand mastic cost in Stanmore?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Places near Stanmore
What else we do in Stanmore
What sealant work can’t fix
We’ll always be straight with you, so here’s what new sealant won’t do:
- Crumbling stone or brickwork round the window
- Putty and glazing repairs
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Tenement windows
- Timber door frames
- Stone surrounds
- Period & listed homes
- Brick reveals
- Sash and case windows