Hampshire · England
Sand mastic for sash & case windows in Woodend, Hampshire
Problem with your window and door surrounds in Woodend? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Mastic round period door frames that has failed
- Silicone on a period window that looks wrong
- Open joints round the window box
Sand mastic in Woodend, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. Typical jobs include cement or filler used on old window joints that has cracked and open joints round the window box, across period & listed homes, sash and case windows and timber door frames.
Around Woodend, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work comes with a 12-month guarantee.
- Location
- Woodend (PO17)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in Woodend
Rain on the window surround works into any crack and loosens it further. Exposed elevations usually fail first.
People normally contact us after spotting something like this:
- Open joints round the window box
- Patchy fillers round a sash window
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
Homes close to Church of the Holy Trinity include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- What product goes in the joint
- Who does the work, and how experienced they are
- When the joint can take water or movement
- How the joint is cleaned and prepared
Why it’s worth doing now in Woodend
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Woodend can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- We never seal over old sealant
- Full insurance on every job
- 180+ five-star Google reviews
See what affects the cost and our reviews.
What the job involves on each surface
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Work for landlords, hotels and businesses
For anyone letting property in or around Woodend, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Places near Woodend
More services for Woodend
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Look over the window mastic once a year
- Make sure water runs off the sill
- Avoid patching sand mastic with silicone
- Leave the new mastic unpainted
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.
Frames and glazing around Woodend
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 let a flat or house near Botley station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Swanmore College of Technology? Then its window and door frames need their mastic kept sound, just like a home’s.
Woodend is about 5 miles north of Fareham, in Hampshire. Jobs in Woodend get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Woodend is one of 683 towns and villages in Hampshire we cover for sand mastic. We also work in Portsmouth, about 8 miles from Woodend.
Work in PO17 works the same way as everywhere else we cover. If you are just outside Woodend, we cover Kingsmead (1 mile west), Soberton Heath (1 mile east), Mislingford (1 mile north-west), Newtown (1 mile south-east) and Southend (1 mile east). Larger places within reach include Winchester (12 miles north-west), Gosport (8 miles south), Havant (8 miles south-east), Eastleigh (9 miles west), Fareham (5 miles south) and Horndean (6 miles east).
Near you in Woodend
Locally, jobs take us to homes and businesses close to The Bold Forester Public House. For rail, the closest station is Botley station, about 4.6 miles west of the centre. Nearby you’ll also find Bishop's Waltham Museum (3.6 miles north-west) and Knowle Hospital (3.5 miles south-west). Green spaces nearby include St Clair's Meadow and Portsdown Hill.
The process
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours per window, depending on the condition of the joints. Somewhere like Woodend 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.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
Advice
Woodend: your questions answered
Can you help a landlord with a rental near Botley station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Can you do sand mastic in Woodend?
Yes, Woodend is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint before the sand mastic goes in.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Is sand mastic better than silicone for my windows?
It depends on the window. Period windows in stone or brick normally suit sand mastic and newer frames normally get a flexible sealant.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or drop us an email.
What affects the quote in Woodend
Jobs vary more than people expect. The main factors:
- The number and length of the joints
- Any working-time requirements on site
- Whether there’s mould to deal with
- How many areas need sealing
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
Before you ask for a quote, have a think about:
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Where the property is
- If someone has resealed it before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.