Essex · England
Surrex Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Surrex, backed by a one-year guarantee. Call for a quick quote.
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps round a timber door in stone or brick
Signs you need sand mastic in Surrex
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
Most people get in touch after spotting something like this:
- Open joints round the window box
- Cracked mastic round a front door frame
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
Schools such as Honywood Community Science School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Before you book anyone
- How much experience the applicator has
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- What happens if the job turns out different
Sand mastic in Surrex
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead, and we’ll talk through which suits your home. We work on brick reveals, tenement windows and sash and case windows, and people most often call us about weathered mastic on the most exposed windows and window mastic to renew ahead of painting.
Somewhere as small as Surrex, 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.
All our work comes with a one-year guarantee, wherever you are in Essex.
- Location
- Surrex (CO6)
- Wider area
- Essex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Landlords, agents and businesses in Surrex
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints, and the area is left clean. For a village or hamlet like Surrex, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
How to get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Read more
What we cannot put right
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Planning or listed building consent (your local planning authority decides)
- Sashes that rattle, stick or will not open
- Masonry that needs repairing
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Stone surrounds
Windows and doors in Surrex
With historic houses such as Layer Marney Tower (about 5 miles south-east) nearby, there’s older building stock in the area around Surrex as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to St Peter ad Vincula include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Kelvedon station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Surrex is about 6 miles south-east of Halstead, in Essex. Jobs in Surrex get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 644 towns and villages across Essex, large and small. We also work in Chelmsford, about 14 miles from Surrex.
We work across the CO6 postcode area for sand mastic and the streets around it. Whether your property is on Old Road and Colchester Road or a nearby road, our applicators can take on the job. Other places close to Surrex include Skye Green (1 mile south-east), Broad Green (1 mile east), Stocks Green (1 mile south), Little Tey (1 mile east) and Feering (2 miles south). Within a short drive, we also cover Colchester (8 miles east), Chelmsford (14 miles south-west), Braintree (7 miles west), Maldon (10 miles south), Witham (6 miles south-west) and Camulodunum (7 miles east).
Around Surrex
Around Surrex, our work takes us to homes and buildings near The Queens Head pub. The nearest railway station is Kelvedon station, about 2.3 miles south. Nearby you’ll also find Laundry & Mangle Museum (1.8 miles west) and Birch Castle (5 miles south-east). Not far away are Belcher's and Broadfield Woods.
Other services in Surrex
Why act early in Surrex
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Surrex can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why Surrex customers choose us
- A 12-month guarantee on all work
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Arbo and Everbuild products
Surrex questions
Do you work for landlords with property near Kelvedon station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover smaller places like Surrex?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can old silicone round a sash window be swapped for sand mastic?
Yes. We remove the silicone and clean the joint before the sand mastic goes in.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or drop us an email.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Is sand mastic better than silicone for my windows?
We will help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- Whether there’s mould to deal with
- Working hours on commercial sites
- Access and height
- The size of the job
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. You will have a clear quote before any work starts.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- The rough size of the job
- The type of property
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
How the job changes by surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
