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

Construction and new-build mastic in Bocking, Essex

Looking for construction mastic in Bocking? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • A long mastic snag list close to completion
  • Old sealant on a refurbishment that needs stripping before new work
  • External joints sealed in damp or cold conditions that are now failing
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Construction mastic across Bocking

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Construction mastic in Bocking, done properly

Mastic Doctor has been a subcontractor on construction projects for over 20 years. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. For construction mastic on a scheme in Bocking, send drawings through our quote form, or phone or email us to talk it through. We work on brick and block movement joints, sanitary and kitchen joints and cladding and panel joints, and the failures we are asked to look at most are a mastic package split between trades with no clear owner and frame gaps too wide for sealant alone. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Bocking it comes down to the same thing: the right product in a properly prepared joint.

In a smaller place such as Bocking, construction tends to mean small housing schemes, conversions and extensions to community buildings. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.

Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Bocking (CM7)
Wider area
Essex
Cover
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Questions we are asked in Bocking

Can work at a site such as Braintree College fit around teaching?

Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is a smaller place like Bocking outside your area?

No. Places such as Bocking are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Are you CHAS accredited?

We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. We are also fully insured, with five million pounds of public liability cover.

How long does a typical visit take?

It depends on the scope, but the work normally takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. Larger or phased jobs take longer, and we will give you a timescale with the quote.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

Are you insured?

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

How the job changes by surface

Fire-rated sealant where specified

Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested detail. The design and sign-off of fire stopping sit with the designer, principal designer or fire engineer and we install what’s specified.

Snagging before handover

Damaged, missed or untidy joints make up most snag lists. Snagging can be included or priced separately.

Looking after the joints

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • Release areas for mastic once other trades have finished in them
  • Brief following trades on areas that have been sealed
  • Plan external elevations with the weather in mind
  • Ask cleaners to use soft cloths around fresh sealant

Any damage after we have finished should go on the snag list straight away. Snags can be picked up in a planned close-out visit.

In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Proper preparation, with the right silicone first time, keeps it off the defects list.

Commercial clients in Bocking

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Diagnose, treat, sign off

Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. If neighbouring businesses or buildings around Bocking need work too, visits can be combined. Mention the building’s opening times and we’ll work within 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. Any frame gaps or issues outside our scope are flagged to the site team.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Send your site hours and access windows
  • Confirm the product named in the specification

Get a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.

Get a price

Read more

Do you need construction mastic in Bocking?

On construction sites, joints normally fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, so they end up back on the snag list.

Clients normally get in touch after noticing one or more of the following:

  • Snag items on joints that need redoing before handover
  • Caulk cracking where joints are moving more than expected
  • Oversized or tapered gaps around new frames
  • Window and door perimeters that won’t pass inspection

For contractors at a college like Braintree College (0.6 miles north-east of Bocking), perimeters and internal sealant are timed for the holidays.

What your quote should include

  • Whether primer will be used where the manufacturer specifies it
  • Whether their applicators hold CSCS cards
  • Can the work be phased to keep areas open?
  • Health and safety accreditation such as CHAS

Our contractor checklist

Contractors’ notes for Bocking

The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so we time external mastic for dry faces and agree it with the site team. Bocking is about 38 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and main contractors there need mastic that keeps to the programme.

For a contractor working at a hospital such as Braintree Community Hospital, 0.5 miles south-west of Bocking, perimeter and facade sealing is planned around patients and deliveries. Hotel extensions and refits, at places such as The White Hart Hotel, which lies south of Bocking, usually run between busy periods, so the sealing is squeezed into short windows.

Bocking is about 1 mile west of Braintree, in Essex. We cover Bocking, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 644 places across Essex fall within our area, Bocking among them. There’s a separate page for London, roughly 38 miles from Bocking.

If you need construction mastic in CM7, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Clare Road, The Avenue and Mount Road. Nearby places we also cover include Braintree (1 mile east), Great Notley (2 miles south-west), Panfield (2 miles north-west), Rayne (2 miles west) and Row Green (2 miles south). Nearby towns on our patch include Colchester (15 miles east), Chelmsford (10 miles south), Maldon (12 miles south-east), Witham (7 miles south-east), Camulodunum (14 miles east) and Halstead (5 miles north-east).

Near you in Bocking

In Bocking, that means premises near Horse And Groom Inn, Bocking Blackwater and Edith Borthwick School. The closest station to Bocking is Braintree station, about 0.6 miles south-east of the centre. Nearby you’ll also find St Michael's Hospital (0.5 miles south-west) and Tudor House Museum (Braintree) (0.5 miles north-east). For a walk, there’s Belcher's and Broadfield Woods.

Map of Bocking © OpenStreetMap contributors

When it isn’t the sealant

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Glazing units that are cracked or misted
  • Oversized gaps that need packing or adjustment by others
  • Rework caused by others damaging completed areas

If you’re not sure, just phone 01277 525 020 or email us and we’ll give you a straight answer.

What we seal

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

Trusted. Accredited. Insured.