Hampshire · England
Hatch Warren Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Hatch Warren. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Crumbling sand mastic round a window
- Cracked mastic round a front door frame
- Draughts and rain around sash boxes
Sand mastic in Hatch Warren, done properly
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. Typical jobs include patchy fillers round a sash window and old sand mastic that has cracked, crumbled or fallen out, across timber door frames, brick reveals and tenement windows.
In a smaller place like Hatch Warren, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Hatch Warren (RG22, RG25)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need sand mastic in Hatch Warren?
Timber frames move with the seasons. That movement opens up the mastic joint over time.
The problems people usually mention when they call include:
- Mastic round period door frames that has failed
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
- Mastic worn away on windows facing the weather
Managing a site like Hatch Warren Infant School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- When the joint can take water or movement
- What preparation is included
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a single window, longer for several. For a job in Hatch Warren, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Ask for a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Related advice
Landlord and commercial work in Hatch Warren
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Also near Hatch Warren
More services for Hatch Warren
Windows and doors in Hatch Warren
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.
If you let a flat or house near Basingstoke station, older sash windows in a rental need their mastic kept sound to keep the weather out. For an older house near a landmark such as The Church Of Christ The King, the joint between an old wall and a newer frame is generally the first place rain gets in.
Hatch Warren is about 2 miles south of Basingstoke, in Hampshire. Jobs in Hatch Warren get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 683 places across Hampshire, from the larger towns to small villages. Our Reading page covers work nearby.
We cover every part of RG22 and RG25 for sand mastic. If you need sand mastic at a property on Cyprus Road, Danebury Road and Cliddesden Lane or a nearby road, our applicators can take on the job. Other places close to Hatch Warren include Farleigh Wallop (1 mile south), Brighton Hill (1 mile north), Kempshott (1 mile north-west), South Ham (2 miles north) and Buckskin (2 miles north). We also work in nearby towns such as Winchester (15 miles south-west), Fleet (12 miles east), Aldershot (15 miles east), Alton (8 miles south-east), Yateley (14 miles north-east) and Tadley (8 miles north).
What’s near Hatch Warren
Locally, jobs take us to homes and businesses close to Jolly Farmer Public House, Brighton Hill Community School and Coppice Spring School. The closest station to Hatch Warren is Basingstoke station, roughly 2.7 miles north-east. A little further out are Willis Museum (2.4 miles north-east) and Festival Place (2.6 miles north-east). Not far away are Farleigh Hill and Daneshill Park Woods.
When it isn’t the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- Timber that has rotted
- Sashes that rattle, stick or won’t open
- Damaged stone surrounds
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
- Stone surrounds
- Period & listed homes
Questions from Hatch Warren
Do you work for landlords with property near Basingstoke station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Will you come out to Hatch Warren?
Yes. Hatch Warren 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.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
How long will you be here?
That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll give you a better idea when we quote.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
What affects the quote in Hatch Warren
Your quote is based on your job. We take into account:
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- How many rooms, windows or areas are involved
- When we can work, for business premises
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What the job involves on each surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.