Essex · England

Sand mastic for sash & case windows in Bentfield Green, Essex

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Bentfield Green, with a one-year guarantee on every job. Ask us for a quote.

  • Mastic worn away on windows facing the weather
  • Tired mastic found when preparing windows for paint
  • Old sand mastic that has cracked, crumbled or fallen out

Sand mastic near Bentfield Green

Quotes for sand mastic in Bentfield Green

Your quote is based on your job. We take into account:

  • Whether there’s mould to deal with
  • When we can work, for business premises
  • The old material and how stubborn it is
  • How much there is to do

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.

Asking for a quote

There’s no need for technical detail. Just tell us:

  • The type of property
  • Roughly how big the job is
  • Pictures of the joints, sent by email
  • Access, such as stairs, a lift or height

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or send us an email.

Sand mastic in Bentfield Green

Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We work on tenement windows, brick reveals and period & listed homes, and people most often call us about window mastic to renew ahead of painting and weathered mastic on the most exposed windows.

Around Bentfield Green, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Bentfield Green (CM24, CM22, CM23)
Region
Essex
Cover
A year, on every job
Quote
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

How to look after the new joints

No joint lasts for ever, but care makes a real difference. A few tips:

  • Take care around the mastic when scraping paint
  • Get any rot dealt with first
  • Sort the mastic before the decorators arrive
  • Don’t run silicone over sand mastic

Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.

Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.

Leave it or put it right?

Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Around Bentfield Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why choose Mr Mastic in Bentfield Green

  • A 12-month guarantee on all work
  • Fully insured
  • Sanitary silicone with an anti-fungal additive in wet areas
  • An ARBOMaster approved applicator

Read how sealant jobs are priced and what customers say.

Landlord and commercial work in Bentfield Green

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.

Sand mastic in Bentfield Green: local notes

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Managing a site like Bentfield Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of St John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Bentfield Green is about 1 mile north-west of Stansted Mountfitchet, in Essex. Every kind of property in Bentfield Green is covered for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Bentfield Green is one of 644 places in Essex where we work for sand mastic. You can also see our page for Chelmsford, about 17 miles away.

Here we cover the CM24, CM22 and CM23 postcode area for sand mastic. Local streets include Clarence Road, Bentfield Road and Rainsford Road, all of which we cover. Close by, we work in Stansted Mountfitchet (1 mile south-east), Manuden (1 mile north-west), Farnham (2 miles west), Mount Pleasant (2 miles north-west) and Uppend (2 miles west). Further out, we also cover Harlow (10 miles south), Saffron Walden (8 miles north), Great Dunmow (8 miles east), Epping (15 miles south), Great Notley (15 miles east) and Newhall (10 miles south).

Landmarks near Bentfield Green

Locally, jobs take us to homes and businesses close to Bell And Feathers Inn and Forest Hall School, among other places. The closest station to Bentfield Green is Stansted Mountfitchet station, about 0.7 miles south-east. Other landmarks nearby include Moated mound (3.5 miles south-west) and House On The Hill Toy Museum (0.7 miles south-east). Not far away are Portingbury Hills and Aubrey Buxton Nature Reserve.

Map of Bentfield Green © OpenStreetMap contributors

When to call us in Bentfield Green

Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.

The problems people usually mention when they call are:

  • Wind and rain getting in round a sash window
  • Patchy fillers round a sash window
  • Weathered mastic on the most exposed windows
  • A silicone bead on a sash window that spoils the look

Letting a property close to Stansted Mountfitchet station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.

What to look for in a quote

  • Whether they seal over old material or remove it
  • Whether the sealant suits the joint
  • Whether you can choose the colour
  • What happens if the job turns out different

10 questions to ask before booking

Surface by surface

Timber door frames

Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.

Bentfield Green: your questions answered

Is Bentfield Green in your area for sand mastic?

Yes, Bentfield Green is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.

Is Bentfield Green 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.

I rent my home. Can I book you?

Of course. Ask your landlord first, and we can send them the quote if that helps.

When will the new mastic be hard?

The surface skins quite quickly and it hardens fully over a longer time. Timing depends on the weather and the joint.

Which products do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

What should I tell you?

Let us know what needs doing and where. We will ask anything else we need to know.

Is it possible to paint over sand mastic?

Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we will advise.

Will the old sealant be removed?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

How it works

There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Somewhere as small as Bentfield Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. We finish the mastic to a tidy line.

Before we arrive

  • Mention any tricky access
  • Let us know about earlier repairs to the joints
  • Keep children and pets away from the work area

Ask for a quote

We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details and send pictures if you have them.

Ask for a quote

Related advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job