Essex · England
Sand mastic for sash & case windows in Howe Green, Essex
Our applicators work in Howe Green on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Draughty sash windows at the surround
- Mastic that needs renewing before redecorating
- Patchy fillers round a sash window
Sand mastic in Howe Green
We renew sand mastic around sash windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you’re dealing with mastic that needs renewing before redecorating and mastic dropping out of the joint, we can help.
Homes in small places like Howe Green often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Howe Green (CM2)
- Region
- Essex
- Cover
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Howe Green questions
Do you work for landlords with property near Chelmsford station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Howe Green?
Yes. Howe Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do several jobs on one visit?
Of course. Doing several areas at once is usually more efficient.
Do I need permission for sand mastic on a listed building?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Where are you based?
We are based in Crawley, and we work across South East England, London and Scotland.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What information do you need?
Tell us what needs doing and where. If we need more, we will ask.
Can you replace silicone on a period window with sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Howe Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Clear items away from the joints we’re working on
- Plan for the work area to be out of bounds to pets and children
Getting a quote
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Advice
Keeping the joints in good condition
After the cure time, these simple habits help:
- Do not run silicone over sand mastic
- Avoid heavy scraping on the mastic joint
- Have rotten timber repaired before new mastic goes in
- Find out about consent before window work on a listed home
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
- The amount of work
- The type of sealant required
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- The rough size of the job
- Whether it’s a home or a business
- What’s wrong with the joints now
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Do you need sand mastic in Howe Green?
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
If you can see any of these, it’s time to have the joints looked at:
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
If you live in an older home near Church of St Andrew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before you book
- Who turns up on the day
- Is VAT in the price?
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
Places near Howe Green
More services for Howe Green
What the job involves on each surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Windows and doors in Howe Green
With historic houses such as Danbury Place (about 1.7 miles north-east) nearby, there’s older building stock in the area around Howe Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Chelmsford station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like The Sandon School? Then its window and door frames need their mastic kept sound, just like a home’s.
Howe Green is about 3 miles south-east of Chelmsford, in Essex. If you need sand mastic in Howe Green, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Essex from our Crawley base, Howe Green included. Howe Green is one of 644 towns and villages in Essex we cover for sand mastic.
Every address in CM2 is within our area for sand mastic. If you need sand mastic at a property on Chalklands, Southend Road and The Tythings or anywhere close by, our applicators can take on the job. Other places close to Howe Green include East Hanningfield (2 miles south-east), West Hanningfield (2 miles south-west), Bicknacre (2 miles east), Rettendon (3 miles south) and South Hanningfield (3 miles south). Larger places within reach include Chelmsford (3 miles north-west), Basildon (9 miles south), Braintree (13 miles north), Brentwood (11 miles south-west), Maldon (7 miles east) and Canvey Island (12 miles south).
What’s near Howe Green
For rail, the closest station is Chelmsford station, roughly 3.6 miles north-west. Nearby you will also find Bond Street Chelmsford (3.3 miles north-west) and Baddow Hospital (1.2 miles north-west). Green spaces nearby include Hanningfield Reservoir.
Landlords, agents and businesses in Howe Green
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Honest limits
A few problems are outside what sealant work can do:
- Decisions on consent for listed homes
- Crumbling stone or brickwork round the window
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Tenement windows
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows
- Brick reveals