Essex · England

Sand Mastic in Hornestreet

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Hornestreet. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Mastic round period door frames that has failed
  • Mastic that needs renewing before redecorating
  • Old sand mastic that has cracked, crumbled or fallen out

Trusted sand mastic in Hornestreet

What affects the quote in Hornestreet

For a quick quote, just ask. The main things that affect it are:

  • Whether there’s mould to deal with
  • How easy the joints are to reach
  • The number and length of the joints
  • The type of sealant required

We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.

What to tell us for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • Whether it’s a home or a business
  • How we’d reach the joints
  • Pictures of the joints, sent by email
  • The rough size of the job

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or send us an email.

Sand mastic for homes and businesses in Hornestreet

For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. We work on tenement windows, brick reveals and timber door frames, and common reasons people get in touch are crumbling sand mastic round a window and gaps round a timber door in stone or brick.

Outdoor sealant needs dry, clean surfaces, so work on frames around Hornestreet is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Where
Hornestreet (CO4)
Region
Essex
Cover
One year on every job
Price
A clear price before we start
Call
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Different surfaces, different methods

Stone surrounds

Sand mastic sits naturally against stone. The finish blends with the masonry.

Tenement and terrace windows

Where a building is shared, window work may involve neighbours, so check who is responsible first.

What sealant work cannot fix

A few problems are outside what sealant work can do:

  • Decayed frames that need repair
  • Sashes that need overhauling
  • Crumbling stone or brickwork round the window

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.

What we seal

  • Tenement windows
  • Period & listed homes
  • Stone surrounds
  • Sash and case windows
  • Brick reveals
  • Timber door frames

Aftercare tips

Good habits help new joints last longer. Our tips:

  • Do not run silicone over sand mastic
  • Ask us before painting near the mastic
  • Keep sills and gutters clear so water drains away
  • Have rotten timber repaired before new mastic goes in

Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.

Hornestreet questions

Will you come out to Hornestreet?

Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Can you do sand mastic in Hornestreet?

Yes. We work across London and the South East, and Hornestreet is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.

I rent my home. Can I book you?

Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.

What is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us and we’re fully insured.

Do you remove the old sealant?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Should I check with the council before work on a listed or conservation-area home?

Checking first is sensible. Ask your local planning authority whether consent is needed for listed or conservation-area properties.

Which is right for my windows, sand mastic or modern sealant?

We will talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.

Can I do it myself?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

Frames and glazing around Hornestreet

Historic houses like Castle House (about 2.4 miles east) are a reminder that the area around Hornestreet has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Managing a site like Langham Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Castle House, about 2.4 miles east, is one of the historic houses in the wider area around Hornestreet. Letting a property close to Colchester station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.

Hornestreet is about 5 miles north-east of Colchester, in Essex. Our applicators cover sand mastic for homes and businesses in Hornestreet and nearby. Across Essex, we cover 644 places, Hornestreet among them. Our Chelmsford page covers work nearby, about 24 miles away.

Work in CO4 works the same way as everywhere else we cover. Close by, we work in Langham (1 mile south-west), Boxted Cross (1 mile west), Boxted (1 mile west), Lamb Corner (2 miles east) and Workhouse Hill (2 miles west). Further out, we also cover Colchester (5 miles south-west), Clacton-on-Sea (14 miles south-east), Harwich (14 miles east), Camulodunum (6 miles south-west), Halstead (13 miles west) and Greenstead (4 miles south).

Local landmarks in Hornestreet

Locally, jobs take us to homes and businesses close to Shepherd and Dog pub. The nearest railway station is Colchester station, roughly 4.1 miles south-west of the centre. Well-known places in the area include The Munnings Museum (2.4 miles east) and Severalls Hospital (3 miles south-west). Open spaces near Hornestreet include Westhouse Wood.

Map of Hornestreet © OpenStreetMap contributors

Why act early in Hornestreet

Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. Where a wall is exposed, as many are in small places like Hornestreet, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.

What you get with us

  • Anti-fungal sanitary silicone in wet areas
  • 4.9 on Google from 180+ five-star reviews
  • We’re fully insured
  • Experience in homes, commercial sites and hotels

Read what affects the cost and our reviews.

How the visit works

You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a single window, longer for several for a typical job. Somewhere as small as Hornestreet, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. Each surround is checked first.
  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.

How to prepare

  • Tell us about any water getting in
  • Move anything stored near the joints
  • Mention any parking rules near the property

Getting a quote

For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.

Get a price

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