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

Construction and new-build mastic in Patching, Essex

Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Patching and the surrounding area. Send photos or drawings for a fixed quote.

  • Bath and shower joints scraped during the final clean
  • Old sealant on a refurbishment that needs stripping before new work
  • Early adhesion failures on new external joints
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Construction mastic for Patching sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Construction mastic in Patching, done properly

Mastic tends to be one of the final packages before handover, so it lands at exactly the point the programme is tightest. Mastic Doctor takes on mastic packages for main contractors and developers, sealing plot by plot or floor by floor as areas are released. We work on internal decorators’ caulk, window and door perimeters and cladding and panel joints, and the usual reasons a site gets in touch are oversized or tapered gaps around new frames and snag items on joints that need redoing before handover. Searching for sealant specialists in Patching? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.

For a contractor on a smaller site near Patching, one mastic visit at the right stage saves return trips. Tell us when scaffold comes down and when decoration finishes, and we’ll plan around those stages.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Where
Patching (CM1)
Wider area
Essex
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What we can’t put right

Honesty saves time and money. Fresh joints won’t solve:

  • Specifying the product where the designer hasn’t
  • Glazing units that are cracked or misted
  • Frames fitted out of tolerance

If you are not sure, just call the office on 01277 525 020 or send photos by email and we will give you a straight answer.

What we seal

  • Sanitary and kitchen joints
  • Window and door perimeters
  • Floor and skirting junctions
  • Brick and block movement joints
  • Cladding and panel joints
  • Internal decorators’ caulk

Commercial clients in Patching

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Patching can form part of a wider programme across Essex.

Looking after the joints

After handover, these steps help:

  • Bring the mastic contractor in after the last trades are through
  • Get the mastic subcontractor involved early in the programme
  • Keep product details for future maintenance
  • Use the product the specification names

Tell the builders’ clean team which areas have new sealant. Scrapers used on frames and worktops can nick or lift a new bead so keep them off the joints.

Frames with gaps too wide for sealant need sorting before the mastic goes on. Filling a wide gap with sealant alone sets up a failure, so the installer needs to correct it first. We flag them as soon as we see them.

What the job involves on each surface

Internal decorators’ caulk

Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s for gaps that stay still and get painted.

Window and door perimeters

Inside, a paintable sealant or decorators’ caulk is used where the joint doesn’t move much. The specification decides which.

Why deal with it now?

When a package runs over budget, downgrading the product is a common first thought. A failed joint in the defects period costs far more than the product difference. We price the specified product and will tell you plainly where an alternative would or wouldn’t work. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.

Why choose Mastic Doctor in Patching

  • Failed material removed, not covered up
  • 12 months’ guarantee on every job
  • A fixed quote before work starts
  • Colour options checked against the specified product

See how commercial sealant jobs are priced or our accreditations and insurance.

FAQs: Patching

Is Patching too far out for you?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Will you plan work around the academic year at somewhere like Anglia Ruskin University?

Yes. We plan campus work around teaching, exams and residence turnarounds. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.

How long does a job like this take?

That varies with the scale of the job, but the work usually takes whatever the programme allows, since the work follows the trades as areas are released. For bigger or phased jobs, we’ll set out a timescale with the quote.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Can you seal external joints in wet or cold weather?

Weather matters for external sealing: the joint needs to be dry and within the product’s temperature range. External work is sequenced with some flexibility.

Contractors’ notes for Patching

Patching is about 30 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, so mastic packages have to keep pace with busy programmes. There are a number of hotels within about 2 miles of Patching. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.

For contractors on a campus like Anglia Ruskin University (0.6 miles south of Patching), facade and perimeter sealing has to fit around students and term dates. Further education sites such as Chelmsford College - Moulsham Street Campus (1.8 miles south of Patching) are extended and refurbished from time to time, with mastic often programmed into the summer break. When units on a site such as Rivermead Industrial Estate, 0.6 miles south-east of Patching, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Patching is about 1 mile north-west of Chelmsford, in Essex. We cover Patching, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 644 places in Essex, from busy centres to rural villages. There’s a separate page for London, about 30 miles away.

If you need construction mastic in CM1, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on First Avenue, Sixth Avenue and Fifth Avenue or close by, send details and we will quote for mastic packages. Being close to the A1016, Patching is straightforward for us to reach. Close to Patching, our area also takes in Chelmsford (1 mile south-east), Broomfield (2 miles north), Moulsham (2 miles south), Chignall St James (2 miles west) and Writtle (2 miles south-west). A short drive away, we cover Basildon (12 miles south), Braintree (10 miles north-east), Harlow (15 miles west), Brentwood (11 miles south-west), Maldon (9 miles east) and Billericay (9 miles south).

Landmarks near Patching

Recent enquiries here include premises near The Red Beret pub, Chelmer Valley Riverside and St Pius X Catholic Primary School, among other places. Patching’s nearest station is Chelmsford station, roughly 1 mile south. Nearby you will also find Bond Street Chelmsford (1.2 miles south) and Priory Hospital (1 mile south-east). Open spaces near Patching include Newland Grove.

Map of Patching © OpenStreetMap contributors

Our process

On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, with the work itself typically taking a day or two on a small fit-out and several weeks on a large multi-storey package. Several jobs near Patching can be grouped on one trip. Tell us your site hours and we will plan around them.

  1. We walk the site or review drawings to understand the package.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Problems we find, such as oversized gaps, are raised straight away.
  6. Final snagging is completed and the 12-month guarantee applies.

Preparing the site

  • Point out parking and an unloading spot
  • Let building users know which areas are affected
  • Tell us which areas need to stay in use

Getting a fixed quote

To get a fixed quote, ring 01277 525 020 or email us. Our quote form is another easy route.

Ask for a quote

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Accreditations

Trusted. Accredited. Insured.