Essex · England
Sand Mastic in Thorington Street
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Thorington Street. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps round a timber door in stone or brick
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic when you check the paintwork
- Avoid patching sand mastic with silicone
- Avoid heavy scraping on the mastic joint
- Check with your local planning authority if your home is listed
Avoid painting over the new mastic, which is the traditional advice. If you’re redecorating, ask us first.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
Sand mastic in Thorington Street, done properly
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on tenement windows, sash and case windows and period & listed homes, and people most often call us about patchy fillers round a sash window and tired mastic found when preparing windows for paint.
Mastic can only go onto a dry, clean joint, so window work in Thorington Street is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months.

- Place
- Thorington Street (CO6)
- Region
- Essex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Common problems we fix in Thorington Street
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
Keep an eye out for any of the following:
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Mastic round period door frames that has failed
- A silicone bead on a sash window that spoils the look
In and around Thorington Street, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Before you book anyone
- Whether VAT is included
- Whether you can choose the colour
- Whether they’re fully insured
- What product goes in the joint
How the job changes by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Questions from Thorington Street
Is Thorington Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with sand mastic in Thorington Street?
All our work, in Thorington Street and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
How do I get a quote for sand mastic in Thorington Street?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
How the visit works
All our tools and materials come with us in the van, so you don’t 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. For a village or hamlet like Thorington Street, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or send us an email.
Advice
How we quote for sand mastic
You will get a clear quote before work begins. It takes into account:
- How many rooms, windows or areas are involved
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The rough size of the job
- How we’d reach the joints
- The problem you’ve noticed
- Pictures of the joints, sent by email
Every job is quoted individually. Simply call 0345 464 0079 or drop us an email and describe the job.
Frames and glazing around Thorington Street
With historic houses such as Castle House (about 3.7 miles south-east) nearby, there’s older building stock in the area around Thorington Street as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Castle House, about 3.7 miles south-east, is one of the historic houses in the wider area around Thorington Street, and older homes nearby need a sealant that suits their walls.
Thorington Street is about 6 miles north of Colchester, in Essex. Wherever you are in the CO6 postcode area, we can carry out sand mastic at your property. Our area takes in 644 places across Essex, large and small. There’s also a page for Chelmsford, about 25 miles away.
Jobs for sand mastic in CO6 works the same way as everywhere else we cover. Nearby, we also carry out sand mastic in Withermarsh Green (1 mile north), Scotland Street (1 mile north-west), Higham (1 mile east), Boxted Cross (2 miles south) and Hornestreet (2 miles south). Further out, we also cover Colchester (6 miles south), Harwich (15 miles east), Camulodunum (7 miles south), Halstead (13 miles west), Greenstead (6 miles south) and Tiptree (14 miles south-west).
Landmarks near Thorington Street
A little further out are Little Wenham Castle (4.9 miles north-east) and Severalls Hospital (4.6 miles south). The countryside around Thorington Street includes Arger Fen.
Landlords, agents and businesses in Thorington Street
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
