Hampshire · England
Sand mastic for sash & case windows in Steep, Hampshire
Specialist sand mastic for Steep: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
- Mastic that needs renewing before redecorating
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. It normally takes a few hours for a single window, longer for several. In a small place like Steep, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Move anything stored near the joints
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
How to get a quote
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or email us.
Related advice
Sand mastic in Steep
Sand mastic does not last for ever and gaps open up round the frame. We rake it out and renew it so the surround looks right again. If you’re dealing with old cement repairs round a window that have failed and old sand mastic that has cracked, crumbled or fallen out, we can put it right.
In a village or hamlet like Steep, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
A one-year guarantee comes as standard.
- Where
- Steep (GU32)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need sand mastic in Steep?
Water gets into small cracks in the mastic and loosens it further. Exposed elevations usually fail first.
People normally contact us after spotting one of these:
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
- Cracked mastic round a front door frame
For an older house near a landmark such as Church of All Saints, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Whether they seal over old material or remove it
- Whether you can choose the colour
- What the quote includes, VAT included or not
- What guarantee comes with the work
Landlords, agents and businesses in Steep
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Sand mastic in Steep: local notes
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.
Rented homes near Petersfield station change hands often, and any sash windows need sound mastic to keep draughts and rain out. Schools such as Steep Church of England Voluntary Controlled Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Steep is about 1 mile north of Petersfield, in Hampshire. Steep gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Hampshire, we cover 683 places, and Steep is one of them. Our Portsmouth page covers work nearby (16 miles or so).
All of GU32 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Church Road and Mill Lane. We also cover the places around Steep: Steep Marsh (1 mile north), Sheet (1 mile south-east), Oakshott (1 mile north), Petersfield (1 mile south) and Stroud (2 miles south-west). Further out, we also cover Havant (11 miles south), Horndean (9 miles south), Alton (9 miles north), Waterlooville (11 miles south), Purbrook (12 miles south) and Bordon (7 miles north-east).
Near you in Steep
Typical jobs here are in homes near The Cricketers Inn, Churcher's College and The Petersfield School, among other places. The closest station to Steep is Petersfield station, about 1.4 miles south. Other landmarks nearby include Bear Museum (1.7 miles south) and Petersfield Community Hospital (1.5 miles south). For a walk, there’s Liss Riverside Railway Walk South and Wheatham Hill.
Also near Steep
Also in Steep
Questions from Steep
Will you come out to Steep?
Yes. Steep is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do sand mastic in Steep?
Yes. We work across London and the South East, and Steep is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
What does sand mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Ask a joiner to look at soft timber first
- Go gently near the mastic when preparing windows
- Clear gutters so water doesn’t pour onto the windows
- Ask the planning authority about consent for listed or conservation-area homes
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What affects the quote in Steep
We quote each job individually. These are the things that affect it:
- How much there is to do
- Whether there’s mould to deal with
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start.
What to tell us for a quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- The address or postcode of the job
- The problem you’ve noticed
If you’re in Steep and need sand mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Damaged stone surrounds
- Sash cords, weights and draught-proofing of the sashes
- Putty and glazing repairs
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Period & listed homes
- Brick reveals
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
Different surfaces, different methods
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.