Hampshire · England
Sand mastic for sash & case windows in Woodside, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Woodside, with a one-year guarantee on every job. Ask us for a quote.
- Window mastic to renew ahead of painting
- Cracked mastic round a front door frame
- Open joints round the window box
Sand mastic for homes and businesses in Woodside
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. Typical jobs include patchy fillers round a sash window and gaps where the frame meets the masonry, on timber door frames, stone surrounds and tenement windows.
Mastic can only go onto a dry, clean joint, so window work in Woodside is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
There’s a 12-month guarantee on every job, large or small.
- Location
- Woodside (SP11)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Keep modern sealant off the mastic
- Find out about consent before window work on a listed home
- Sort the mastic before the decorators arrive
- Do not paint over the new mastic
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
The process
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours for a single window, longer for several. Somewhere like Woodside needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- 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.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Related advice
How we quote for sand mastic
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- When we can work, for business premises
- The old material and how stubborn it is
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Photos by email, if that’s easy
- Whether it’s a home or a business
Need a quote? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before work begins.
Nearby places to Woodside
Other services in Woodside
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
When it is not the sealant
A few problems are outside what sealant work can do:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Damaged stone surrounds
- Cracked or broken glass
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows
- Brick reveals
- Tenement windows
Woodside: your questions answered
Is Woodside within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Woodside in your area for sand mastic?
Yes, Woodside is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Do you offer different sealant colours?
In most cases you can choose. We’ll explain which colours are available and agree one before we start.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
How do I get a quote for sand mastic in Woodside?
Size, access and the old material all affect the cost. Call for a quick quote.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Can tenants book the work?
Of course. Ask your landlord first, and we can send them the quote if that helps.
What the job involves on each surface
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Frames and glazing around Woodside
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in.
Woodside is about 7 miles north of Andover, in Hampshire. Anywhere in SP11, we cover sand mastic for homes and businesses. Across Hampshire, we cover 683 places, Woodside among them. Reading is on our list too, around 26 miles away.
All of SP11 is within our area for sand mastic. Other places close to Woodside include Vernham Dean (1 mile east) and Bagshot (6 miles north). Larger places within reach include Andover (7 miles south), Tidworth (8 miles south-west), Ludgershall (6 miles south-west), Whitchurch (10 miles south-east), East Anton (6 miles south-east) and Overton (12 miles east).
Landmarks near Woodside
Typical jobs here are in homes near The George Inn, among other places. Green spaces nearby include Inkpen Hill.
Do you need sand mastic in Woodside?
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Common reasons people contact us are:
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
If you look after a building such as Vernham Dean Gillum's Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Whether all the old sealant comes out first
- Is VAT in the price?
- Who does the work, and how experienced they are
- What guarantee comes with the work