The Mastic Doctor team standing beside their branded vans outside an office building
Essex · England

Sealant specialists in Roundbush Green

Commercial sealant contractors for Roundbush Green, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Hardened, chalky sealant on south-facing or exposed elevations
  • Mouldy silicone around WCs, urinals and vanity tops
  • Gaps behind commercial kitchen worktops and sinks
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Commercial sealant contractors in Roundbush Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Sealant specialists in Roundbush Green

Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails. We are commercial sealant applicators for FMs, managing agents, landlords and contractors looking after property in Roundbush Green. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. If you have layers of sealant, all of them failing and frame sealant that has cracked, shrunk or pulled away, we can help, whatever the surface. One point of contact handles commercial sealant work in Roundbush Green from the first photos to the final walk-round, for single jobs and planned programmes alike.

We price commercial jobs in Roundbush Green from photographs, drawings or a site visit, and the scope is set out in writing.

Business units in the countryside around places like Roundbush Green are often converted barns, stables or farmyards. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Roundbush Green (CM6)
Region
Essex
Cover
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

What Roundbush Green’s businesses ask us to seal

The South East is one of the drier parts of the UK. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings. At about 28 miles from central London, Roundbush Green is within reach of the capital. This part of the South East is dense with business parks and out-of-town offices. Multi-site occupiers here often want one sealant contractor across all their buildings.

A lasting commercial joint around Roundbush Green begins with the old bead fully out and the faces clean and dry.

Roundbush Green is about 8 miles south-east of Bishop's Stortford, in Essex. Roundbush Green sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 644 places across Essex fall within our area, including Roundbush Green. There’s a separate page for London, roughly 28 miles from Roundbush Green.

Postcode districts covered here: CM6. Buildings on Dunmow Road and Drury Lane are within our area for sealant joints. Just outside Roundbush Green, we also work in 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). Nearby towns on our patch include 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).

Around Roundbush Green

In Roundbush Green, that means premises 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

When to call us in Roundbush Green

When a bead peels cleanly off one face, it has failed in adhesion. The usual causes are poor preparation, a missed primer, contamination on the joint face or sealant bonded to the base of the joint. It’s one of the commonest faults we find on earlier work.

It’s worth sending us details if you spot any of the following:

  • Frame sealant that has cracked, shrunk or pulled away
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Layers of sealant, all of them failing
  • Mouldy silicone around WCs, urinals and vanity tops

If you run an office at a site such as Parklands Business Centre, 1.1 miles to the south of Roundbush Green, the sealant at reception desks, tea points and frames ages with each fit-out.

Before you book anyone

  • What site paperwork they can supply
  • Do they follow the manufacturer’s priming guidance?
  • What level of public liability insurance do they hold?
  • Is the sealant right for the movement and the substrate?

Our contractor checklist

Our process

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. If others near Roundbush Green need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.

  1. We start with the evidence: photos, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

What we need from you

  • Tell us what induction or permit system the site runs
  • Clear stock, furniture or equipment away from the joints
  • Tell us which areas need to stay in use

Request a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email a schedule or drawings.

Ask for a quote

Read more

Maintenance after handover

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Deal with small splits before they become leaks
  • Brief cleaning contractors to avoid scourers and blades on sealant
  • Look at the sealant around anything that has been moved or replaced
  • On pre-2000 buildings, share the asbestos information before work starts

Good ventilation keeps wet-area sealant in better condition. Extraction that isn’t working keeps the joints wet, which is how mould gets back in. It’s worth having fans checked while the sealant is fresh.

Movement joints that fill with debris stop working. The joint can no longer close, so its edges crack or spall. At that point it’s a repair job rather than a reseal.

For managing agents and facilities managers

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Questions we are asked in Roundbush Green

Is a smaller place like Roundbush Green outside your area?

No. Places such as Roundbush Green are covered as much as the big towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Will you take on work at estates like Parklands Business Centre, close to Roundbush Green?

Yes. Our area takes in Roundbush Green and its surroundings, with estates and business parks such as Parklands Business Centre included. Photos and a short description are enough for a first look.

Which sealant will you use?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Which site documents can you send us?

We’ll confirm the paperwork you need, such as RAMS, an insurance certificate or CSCS details, with the quote. We are CHAS accredited and a Constructionline member, with five million pounds of public liability insurance.

Is the old sealant taken out first?

Removal comes first, every time. Then the joint is cleaned, primed where the maker specifies, backed to depth and resealed.

How long does a typical visit take?

It depends on the scope, but the work typically takes a few hours for one area, or a planned series of visits across a bigger building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

When it isn’t the sealant

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:

  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Walls or slabs moving more than any sealant can take
  • Faulty windows rather than failed perimeter sealant

If in doubt, ring 01277 525 020 or email a schedule or drawings and we will say what we think before you book.

Joints and surfaces we work on

  • Floor and threshold joints
  • Kitchen worktops and splashbacks
  • Window and door perimeters
  • Washrooms and tea points
  • Movement joints in walls and floors
  • External facade joints

Why it’s worth doing now in Roundbush Green

Spot repairs have their place. Where the remaining sealant is just as old, it tends to fail soon after, so access and set-up end up being paid for twice. We can price both options so you can decide on the facts. Around Roundbush Green, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

What you get with us

  • Over 20 years of commercial sealing
  • Old sealant cut out, never sealed over
  • Specification-led, product-correct work
  • Health and safety: CHAS accredited

See our cost guide or how we’re accredited.

Accreditations

Trusted. Accredited. Insured.