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

Mastic sealing for building owners and managing agents in Patching, Essex

Mastic sealing for building owners, managing agents and housing associations in Patching and across Essex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Worn sealant at communal door frames
  • Mastic failing across several blocks on an estate
  • A mix of products and colours from past repairs
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Mastic sealing for Patching sites

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

About our mastic sealing in Patching

For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. If you have cracked, hardened mastic round windows on a block and movement joints with sealant missing, we can help. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Patching, that means joint design, primers and backing rod as standard.

For landlords and associations with stock in and around Patching, grouping buildings into one visit saves travel. Send the addresses and photographs and we will quote for all of them together.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Place
Patching (CM1)
Region
Essex
Guarantee
A 12-month guarantee
Quotes
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How the quote is worked out

Before we quote, we look at:

  • The site’s rules and procedures
  • Any access equipment needed
  • Whether old sealant has to be cut out first
  • The product specified

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.

Before you send an enquiry

The more we know, the firmer the quote. Helpful details to send:

  • Clear photographs of the problem areas
  • The site address and postcode
  • What the building is and how it’s used
  • Drawings or a marked-up plan, if available

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

When to bring in a specialist

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

Blocks and managed buildings in Patching

Patching lies roughly 30 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate. Rainfall across the South East, Patching included, is lower than in many parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.

Historic properties like Hylands, 3 miles to the south-west of Patching, show the age of some local stock, where frame mastic must suit soft brick or stone. If your remit includes a building such as St John Payne Catholic School, frame and door mastic can be programmed for the holidays. If you own or manage units on a site such as Rivermead Industrial Estate, which lies south-east of Patching, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.

Patching is about 1 mile north-west of Chelmsford, in Essex. Looking for mastic sealing in Patching? We can help, as we do across Essex. 644 places across Essex fall within our area, Patching among them. For work in that direction, see our London page.

We cover the CM1 postcode districts. For a building on First Avenue, Sixth Avenue and Fifth Avenue or nearby, send details and we’ll quote for mastic joints. Being close to the A1016, Patching is straightforward for us to reach. Just outside Patching, we also work 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). Bigger towns within reach include 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).

Near you in Patching

Around Patching, our work takes us to commercial buildings near The Red Beret pub, Chelmer Valley Riverside and St Pius X Catholic Primary School, among other places. The closest station to Patching is Chelmsford station, roughly 1 mile south. Nearby you’ll also find Bond Street Chelmsford (1.2 miles south) and Priory Hospital (1 mile south-east). The countryside around Patching includes Newland Grove.

Map of Patching © OpenStreetMap contributors

Maintenance after handover

After handover, these steps help:

  • Track which buildings were done and when
  • Prioritise elevations facing the weather
  • Make it easy for occupiers to report draughts
  • Group repairs into a planned programme

Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.

Left open, joint edges in render, brick or frames can deteriorate. Once that happens, repairs come before resealing.

Honest limits

Some faults sit outside our scope, and we say so rather than covering them up:

  • Water coming in from the roof or rainwater goods
  • Masonry that has broken away beside the joint
  • Glazing that needs replacing

If you are not sure, just call 01277 525 020 or email the details over and we will give you a straight answer.

What we seal

  • Communal kitchens and washrooms
  • Shopfronts below residential blocks
  • External wall and movement joints
  • Balcony and threshold joints
  • Window and door perimeters on blocks
  • Communal entrances and stairwells

How the job changes by surface

Commercial and mixed-use buildings

Mixed-use buildings combine shops below with flats or offices above, so phasing has to suit both. We plan around the site hours and access windows you give us.

Estate-wide resealing programmes

Consistent products and colours across an estate make future maintenance simpler and easier to manage.

Your questions answered

Can you quote for a block close to Chelmsford station?

Yes, we work for agents, landlords and housing associations with blocks of every size. Photos of each elevation help us quote accurately.

Will you take on work at estates like Rivermead Industrial Estate, close to Patching?

Yes, sites like Rivermead Industrial Estate are within our area, along with the rest of Patching. Photos and a short description are enough for a first look.

How do you reach windows on upper floors?

Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned, and we will tell you how we’d approach it.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Can you take on resealing for a block portfolio?

We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.

Which sealant will you use?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Do you work in Patching?

Yes. Sites across Patching are covered, with one number for every area we cover.

On site: what to expect

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a site in Patching, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. We inspect each building and record the joints that have failed.
  2. The quote is fixed and split as suits you.
  3. We agree the programme and dates with you.
  4. Failed sealant is removed and the faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. We check the finished work and confirm the guarantee.

Getting the site ready

  • Point out any areas we must not close
  • Tell us what induction or permit system the site runs
  • Arrange parking or a loading space

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or send details through our quote form with what you know.

Ask for a quote

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