Essex · England

Roundbush Green New Build Mastic

Professional new build mastic in and around Roundbush Green, with every bit of old sealant taken out first.

  • Frame joints opening as the plaster dries
  • Kitchen sealant that has pulled off the wall
  • Beads laid onto grit and dust from the build

New build mastic for Roundbush Green homes and businesses

What happens if it’s left?

A quick bead over the top of the old sealant can look fine at first, but it cannot bond to what’s underneath. Taking it all out and starting again is the only way to get a lasting seal. In a small place like Roundbush Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email and we will talk you through it.

What you get with us

  • We are fully insured
  • 20+ years of sealant experience
  • Every job guaranteed for a year
  • Any old sealant cut out fully, not covered over

See our cost guide or customer reviews.

How we handle new build mastic in Roundbush Green

A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water gets into the floor or walls. If you have gaps between new skirting and floors and frame joints opening as the plaster dries, we can put it right.

Somewhere as small as Roundbush Green, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall
Location
Roundbush Green (CM6)
Region
Essex
Guarantee
A year, on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What the job involves on each surface

Windows and doors

On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.

Plot handovers

Send us the schedule and any sealant specification. Sealant work across the plot is covered.

What affects the cost of new build mastic

Call for a quick quote. The main things that affect it are:

  • Mould in or behind the old joints
  • The number and length of the joints
  • When we can work, for business premises
  • Which sealant suits the joint

Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.

What we need to know

When you contact us, these details help:

  • The rough size of the job
  • The problem you’ve noticed
  • Where the job is, and your postcode
  • The type of property

We do not publish a price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or send us an email.

Signs you need new build mastic in Roundbush Green

If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints are not always given time to dry.

If you can see any of these, it’s time to have the joints looked at:

  • Gaps behind new kitchen upstands
  • Beads laid onto grit and dust from the build
  • Cracked sealant around new window and door frames
  • Gaps between new skirting and floors

Around Roundbush Green, as everywhere, new build mastic is only as good as the preparation behind it.

What to look for in a quote

  • Who turns up on the day
  • Which sealant they’ll use, and why
  • Is the old sealant removed completely?
  • Are they insured?

How to choose a mastic man

Honest limits

We’ll always be straight with you, so here’s what new sealant won’t do:

  • Settlement cracks that need a surveyor
  • Leaking fittings rather than failed sealant
  • Movement caused by a poorly fitted tray or bath

If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.

Joints and surfaces we work on

  • Show homes
  • Plot handovers
  • Windows & doors
  • Skirting & floors
  • Bathrooms & en suites
  • Kitchens

What new build mastic looks like in Roundbush Green

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For jobs in and around Roundbush Green, choosing the right material for each joint is as important as a tidy finish.

Roundbush Green is about 8 miles south-east of Bishop's Stortford, in Essex. Every kind of property in Roundbush Green can book us for new build mastic. Every job comes with our one-year guarantee. We cover 644 towns and villages across Essex, large and small. For nearby work, see our Chelmsford page, about 9 miles away.

All of CM6 is within our area for new build mastic. Streets in the area include Dunmow Road and Drury Lane, and we cover them all. If you are just outside Roundbush Green, we cover Keeres Green (1 mile south), Great Canfield (2 miles north), High Roding (2 miles north-east), High Easter (2 miles east) and Stagden Cross (3 miles east). Within a short drive, we also cover Chelmsford (9 miles south-east), Braintree (12 miles north-east), Harlow (9 miles west), Brentwood (13 miles south), Billericay (14 miles south) and Witham (14 miles east).

Local landmarks in Roundbush Green

Around Roundbush Green, our work takes us to homes and buildings near Axe And Compasses Public House. A little further out are Willingale Doe (4.2 miles south). For a walk, there’s Portingbury Hills.

Map of Roundbush Green © OpenStreetMap contributors

What happens on the day

There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. Somewhere as small as Roundbush Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each joint is checked for movement before any work starts.
  2. We remove the failed sealant and clean the joints.
  3. Joints are dried and primed where the product calls for it.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. We check every joint and leave you with the cure times.

Getting ready for the visit

  • Keep children and pets away from the work area
  • Mention any tricky access
  • For business premises, tell us about site rules or sign-in

Getting a quote

Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand.

Get a price

Related advice

FAQs for Roundbush Green

Do you cover Roundbush Green for new build mastic?

Yes. We work across London and the South East, and Roundbush Green is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.

Do you cover smaller places like Roundbush Green?

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 work for hotels and businesses?

Yes. We have worked for hotels, offices and other businesses, and we are fully insured.

Can you do plot mastic on a new development?

Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved for a clear quote.

Can I send you my snagging list?

Yes. Photos of each sealant item help us quote. If something isn’t sealant, we’ll say so.

Do you work for landlords and businesses?

Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.

Do you use white or clear sealant?

We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.

Which products do you use?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.

For landlords and businesses

If you manage several properties in or around Roundbush Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each.

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

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