Hertfordshire · England
Sand Mastic in Foxholes
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Foxholes, backed by a 12-month guarantee. Ask us for a quote.
- Mastic that needs renewing before redecorating
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Look over the window mastic once a year
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
- Plan mastic work ahead of painting
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Sand mastic in Foxholes, done properly
On many period windows, sand mastic looks right and suits the building. Newer frames normally get a flexible sealant instead, and we’ll talk through which suits your home. We are often asked to deal with mastic that needs renewing before redecorating and cement or filler used on old window joints that has cracked, across period & listed homes, timber door frames and sash and case windows.
Houses in smaller places like Foxholes can stand more in the open than those in a built-up town. That’s hard on the mastic around frames and sills.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Foxholes (SG13)
- Wider area
- Hertfordshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Housing providers, facilities teams and property managers book us too in Foxholes and across Hertfordshire. We can quote a run of properties together.
Why act early in Foxholes
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Homes in smaller places like Foxholes can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- Arbo and Everbuild products
- 180+ five-star Google reviews
- Tidy, careful work
- Every job guaranteed for a year
Take a look at what affects the cost and customer reviews.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Sand mastic in Foxholes: local notes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of the Holy Trinity, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Wheatcroft Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Hertford East station, any sash windows need sound mastic to keep draughts and rain out.
Foxholes is about 1 mile east of Hertford, in Hertfordshire. Homes, rented property, offices and hotels in Foxholes can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Foxholes is one of 381 places in Hertfordshire where we work. There’s also a page for London, about 20 miles away.
Jobs for sand mastic in SG13 works the same way as everywhere else we cover. Whether your property is on Ware Road, London Road and Fairfax Road or a nearby road, our applicators can take on the job. If you’re just outside Foxholes, we cover Rush Green (1 mile north-east), Hertford Heath (1 mile south-east), Hertford (1 mile west), Little Amwell (1 mile south-east) and Horns Mill (1 mile south-west). Further out, we also cover Stevenage (10 miles north-west), St Albans (12 miles west), Bishop's Stortford (10 miles north-east), Welwyn Garden City (6 miles west), Harpenden (13 miles west) and Hitchin (14 miles north-west).
Around Foxholes
Locally, jobs take us to homes and businesses close to Simon Balle All-Through School, The Saracens Head Public House and Hertford Regional College and the streets around them. For rail, the closest station is Hertford East station, roughly 0.8 miles north-west of the centre. Well-known places in the area include Hertford County Hospital (1.5 miles west) and Mcmullen & Sons Brewery Museum (1.2 miles west). Open spaces near Foxholes include King's Meads.
How we quote for sand mastic
The price is agreed before any work begins. It’s based on:
- The type of sealant required
- Any working-time requirements on site
- The old material and how stubborn it is
- Whether the work is at height
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- The rough size of the job
- Photos by email, if that’s easy
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
When it is not the sealant
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- Crumbling stone or brickwork round the window
- Cracked or broken glass
- Rotten sashes, sills or window boxes (a joiner’s job)
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Where we work in Foxholes
- Tenement windows
- Timber door frames
- Brick reveals
- Stone surrounds
- Sash and case windows
- Period & listed homes
Places near Foxholes
More services for Foxholes
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours for a single window, longer for several. In a smaller place like Foxholes, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- 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.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Keep children and pets away from the work area
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
How to get 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’re ready, call 0345 464 0079 or send us an email.
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Common questions in Foxholes
Can you do sand mastic in Foxholes?
Yes, Foxholes is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.
Will you come out to Foxholes?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will talk you through it.
Can I add another job to the visit?
Yes. Just list everything you need.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
How do I get a quote for sand mastic in Foxholes?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.