Hampshire · England
Sand mastic for sash & case windows in Wickham Common, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Wickham Common and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Failed mastic on an exposed elevation
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
Sand mastic for homes and businesses in Wickham Common
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. If you are dealing with old cement repairs round a window that have failed and mastic worn away on windows facing the weather, we can put it right, whatever the surface.
Homes in small places like Wickham Common often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job comes with our one-year guarantee, wherever you are in Hampshire.
- Location
- Wickham Common (PO17)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Wickham Common
Can you do sand mastic in Wickham Common?
Yes, Wickham Common is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
I let a flat near Fareham station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames usually get a flexible sealant.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Can I do it myself?
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.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Frames and glazing around Wickham Common
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Nicholas include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Fareham station, any sash windows need sound mastic to keep draughts and rain out.
Wickham Common is about 3 miles north-east of Fareham, in Hampshire. Across the PO17 area, our applicators can take on sand mastic. Across Hampshire, we cover 683 places, and Wickham Common is one of them. For nearby work, see our Portsmouth page, about 7 miles away.
All of PO17 is within our area for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on Southwick Road, Castle Farm Lane and Black Cottage Lane and the roads around them. If you’re just outside Wickham Common, we cover Crockerhill (1 mile south-west), Hundred Acres (1 mile north-east), Welborne (1 mile south-west), North Boarhunt (1 mile east) and North Fareham (2 miles south). Within a short drive, we also cover Winchester (13 miles north-west), Gosport (6 miles south), Havant (8 miles east), Eastleigh (9 miles north-west), Fareham (3 miles south-west) and Horndean (7 miles east).
Near you in Wickham Common
In Wickham Common, that means homes and buildings near The Old House Hotel and the streets around them. Wickham Common’s nearest station is Fareham station, about 2.8 miles south of the centre. Well-known places in the area include Knowle Hospital (1.6 miles south-west) and Fareham Shopping Centre (2.6 miles south). Open spaces near Wickham Common include St Clair's Meadow and Portsdown Hill.
Different surfaces, different methods
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
What affects the quote in Wickham Common
There’s no set price list, because jobs vary so much. What we look at:
- Which sealant suits the joint
- The number and length of the joints
- The old material and how stubborn it is
- How easy the joints are to reach
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Access, such as stairs, a lift or height
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Signs you need sand mastic in Wickham Common
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
The problems people generally mention when they call are:
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
- Tired mastic found when preparing windows for paint
- Old cement repairs round a window that have failed
Managing a site like Wickham Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
- What preparation is included
- The length of the guarantee
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. Somewhere like Wickham Common 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.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Ask for a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job.
Read more
What happens if it’s left?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. Where a wall is exposed, as many are in small places like Wickham Common, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
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 we need extra access for height. Your quote takes all of that into account.
Why us?
- 4.9 on Google from 180+ five-star reviews
- 12-month guarantee on every job
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Read our cost guide and customer reviews.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Look over the window mastic once a year
- Go gently near the mastic when preparing windows
- Keep modern sealant off the mastic
- Find out about consent before window work on a listed home
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.