Essex · England
Upshire Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Upshire, with a one-year guarantee on every job. Ask us for a quote.
- Draughts and rain around sash boxes
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
FAQs for Upshire
Do you cover smaller places like Upshire?
Yes, Upshire is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Upshire in your area for sand mastic?
Yes. We work across London and the South East, and Upshire is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long does sand mastic take?
It depends on the size of the job, but most jobs take a few hours per window, depending on the condition of the joints. We’ll give you a better idea when we quote.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Should I check with the council before work on a listed or conservation-area home?
Checking first is sensible. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Sand mastic for homes and businesses in Upshire
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We work on timber door frames, tenement windows and brick reveals, and common reasons people get in touch are mastic dropping out of the joint and tired mastic found when preparing windows for paint.
Somewhere as small as Upshire, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Every job comes with a one-year guarantee.
- Where
- Upshire (EN9)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Leave it or put it right?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Around Upshire, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- More than 20 years in sealant work
- 12-month guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
Take a look at our cost guide or what customers say.
Upshire homes and the weather
With historic houses such as Hill Hall (about 4.7 miles east) nearby, there’s older building stock in the area around Upshire as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Schools such as Upshire Primary Foundation School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Cheshunt station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Upshire is about 2 miles east of Waltham Abbey, in Essex. We provide sand mastic to homeowners, landlords and businesses in Upshire and the surrounding area, as part of our work across Essex. Our Essex coverage runs to 644 places, and Upshire is one of them. Our London page covers work nearby.
All of EN9 is covered for sand mastic. If you’re just outside Upshire, we cover Waltham Abbey (2 miles west), High Beech (2 miles south), Debden Green (2 miles south-east), Theydon Bois (3 miles south-east) and Sewardstone (3 miles south-west). Further out, we also cover Harlow (6 miles north-east), Brentwood (12 miles east), Loughton (3 miles south), Epping (3 miles east), Harold Wood (10 miles south-east) and Buckhurst Hill (4 miles south).
Local landmarks in Upshire
Typical jobs here are in homes near King Harold Business & Enterprise Academy and The Woodbine pub. For rail, the closest station is Cheshunt station, about 3.1 miles west of the centre. A little further out are St. Margaret's Hospital (3.5 miles east) and Epping Signalling Museum (2.9 miles east). For a walk, there’s Home Mead and Lippitts Hill.
Also in Upshire
When to call us in Upshire
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
Look out for these signs:
- Old cement repairs round a window that have failed
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
For an older house near a landmark such as Church of St Thomas, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- How long to leave it before use
- What product goes in the joint
- What insurance they hold
- Whether all the old sealant comes out first
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
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.
Quotes for sand mastic in Upshire
Every job gets its own quote. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- Any mould that needs treating
- The number and length of the joints
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Asking for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- The rough size of the job
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Landlords, agents and businesses in Upshire
In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams in Upshire and across Essex. Several sites can be quoted together, and we’re fully insured.
How it works
On the day, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere as small as Upshire, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any tricky access
- Tell us if parking is tricky
Ask for a quote
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.